Message from the President

It is a great pleasure for me to hold the 9th Conference of the Asian International Associationof Dental Traumatology (AADT) under the auspices of Prof. Rodivick Docor, Dean of theCollege of Dentistry, SWU PHINMA. This is the first event in the Philippines. There are threesocieties on dental traumatology: The International Association of Dental Traumatology(IADT) recognized in the world, the Japan Association of Dental Traumatology (JADT)
recognized in Japan, and the Asian International Association of Dental Traumatology (AADT)
recognized in Asia. They perform clinical evaluation based on basic sciences from education,
research and a clinical viewpoint. As a specialized field in each university and a dental service
organization, they play a key role and continue to develop towards the medical forefront.
This time, I hold the society meeting by the sponsorship of the College of Dentistry, SWU
PHINMA in the splendid country of the Philippines. I extend my special thanks to the President,
Dr. Chito Salazar, and Dr. Omar Rodis (Tokushima University Dental School, Japan).
From the situation of stomatology, it is very important for healthy life expectancy to prevent a
tooth from occlusal trauma, in particular, traumatic occlusion based on fracture and dislocation
disorders, as a basic oral health care. Therefore, needless to say, this society is deeply relatedwith Pedodontics, Endodontics, Operative Dentistry, Biomaterials, Dental Radiology, Oral
Surgery, Oral Pathology, Neuropathology, and Clinical Pathology.
Finally, I want to discuss the "SCIENCE" of Dental Traumatology with all of you in thisconference.

Mitsutaka Kimura, DDS, PhD
President, Asian International Association of Dental Traumatology
President, Japan Association of Dental Traumatology

Message from the Dean

Held in partnership with the Japan Association of Dental Traumatology (JADT), thisinternational conference encourages clinicians, educators, and researchers to meet andexchange ideas in a scientific meeting that stimulates learning, teaching, and dialogue, bybringing together people from Asia, and beyond. Held every two years, the Asian International
Association of Dental Traumatology (AADT) has become a source of knowledge among
young and expert researchers. This year, the 9th AADT will be held in Cebu City, thePhilippines.
Cebu is considered to be the Philippine's oldest city and the first capital of the Philippines. It
is also considered to be the birthplace of Christianity in the Far East. It holds a prominent placein the archipelago as the capital of the South and is considered to be the most dynamic islandin the country with the most ethnically diverse population. It is also a convenient place forbusiness and leisure. Cebu has the oldest street and school in the Philippines. Thus, it will be
the best venue for our scientific meeting.
I am confident that this meeting will afford exceptional opportunities for renewing old
acquaintances, making new contacts, networking, and facilitating partnerships across national,
international, and disciplinary borders. I am also hopeful that it will encourage young Filipinos
to have a research oriented mind side by side with their clinical skills.
Together with the JADT and local organizing committee at Southwestern University PHINMA,
I have no doubt that the 9th AADT Conference will offer a remarkable opportunity for the
sharing of research and best practice, especially in Dental Traumatology studies and its related
fields. I expect the resultant professional and personal collaborations to endure for many years,
and I look forward to seeing you in Cebu!

Rodivick Olofernes-Docor, DMD, PhD
Dean, College of Dentistry
Southwestern University PHINMA
Cebu City, Philippines

Contents
Message from the President, AADT
Message from the Dean, Dentistry, Southwestern University PHINMA
Constitution of the AADT .
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Past Conferences and Photos .
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Program Schedule
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Keynote Speaker Abstract
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List of Special Lectures and Abstracts.
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1. Dr. Melanie Karganilla (Philippines)
2. Dr. Takuya Shimada (Japan)
3. Dr. Kumiko Nozaka (Japan)
4. Dr. Toshiaki Hashimoto (Japan)
5. Dr. Yasutaka Yawaka (Japan)
6. Dr. Stephen Almonte (Philippines)
7. Dr. Norimasa Okafuji (Japan)
8. Dr. Kazuyo Yamamoto (Japan)
9. Dr. Hitoshi Kawanabe (Japan)
10. Dr. Jose Vicente Araneta (Philippines)
List of Oral Presentations and Abstracts.
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1. Dr. Arief Waskitho (Indonesia)
2. Dr. Makoto Saito (Japan)
3. Dr. Nitesh Tewari (India)
4. Dr. Rosette Pagpaguitan (Philippines)
5. Dr. Tsendsuren Khurel-Ochir (Mongolia)
6. Dr. Ayako Yoshida-Yoshimitsu (Japan)
7. Dr. Resmi Raju (India)
8. Dr. Shuhei Kubo (Japan)
9. Dr. Thaw Dar Oo (Myanmar)
10. Dr. Pornpoj Fuangtharnthip (Thailand)
11. Dr. Hirofumi Tsuji (Japan)
12. Dr. Ann Patrice Perolino (Philippines)
List of Poster Presentations and Abstracts .
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1. Dr. Masao Irie (Japan)
2. Dr. Daisen Soga (Japan)
3. Dr. Takeshi Kawai (Japan)
4. Dr. Fujio Mizutani (Japan)
5. Dr. Yuriko Suruga (Japan)
6. Dr. Yuta Inoue (Japan)
7. Dr. Sho Odawara (Japan)
8. Dr. Tadashi Yoshida (Japan)
9. Dr. Miyako Noda (Japan)

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The Constitution of the Asian International
Association of Dental Traumatology
Adopted on November 13, 2004
Partially revised on April 21, 2007

Name
This organization is named: Asian International Association of Dental Traumatology, hereinreferred to as the AADT or the Association
Objectives
The Association is established to further research into all aspects of dental traumatology, toencourage the development of preventive and therapeutic methods for dental trauma, to callpublic’s attention to dental trauma, and to promote cooperation and information exchanges
between investigators in Asian countries.
Basic Functions
1.
2.
3.
4.

Organize conferences
Facilitate communications among Asian countries
Issue newsletters
OthersMembership
People who accept and obey the constitution of the AADT will be accepted as a member of
the association.
Tax
1. The tax of the association shall be decided by the council and the general assembly.
2. The tax should be paid at the conference.
3. The operation of the association is based on sponsorships and other incomes.
Organization
1. The positions in the committee are: consultants, one honorary chairperson of theconference, one president, three vice presidents, two secretary-generals, standing
directors, directors, and two auditors.
2. The term of office will be three association years, and reappointment is allowed.
3. The president shall be selected by the council and approved by the general assembly.
1|Page

4.
5.
6.
7.
8.

The president shall appoint the vice presidents, directors, and executive committee.
The president, vice presidents, and executive committee are the directors.
Regents shall be nominated by the council and determined by the general assembly.
Inspectors are selected from regents and determined by the general assembly.
Counselors, honorary chairperson of the conference, and secretary-generals shall beselected by the council and determined by the general assembly.
9. The president is representative of the association and is responsible for its
administration.

Scientific Conference
Scientific conferences will be held once every two years.
Constitution and Bylaws
1. The constitutions shall be amended by the committee and approved by the council.
2. The committee shall determine the bylaws.
Bylaws
The election of the president
The president will be nominated by the counselors and appointed by council.
The place of the general assembly and the conference should be:
1. Applied by local organizations
2. Determined by the council
Official meetings:
1. The meeting of the council and the regents will be held once a year, at least.
2. More than half of the members in the council are required to attend the meeting of
the council and the regents.
Short course of dental traumatology in Asia
In compliance with the wishes of a short course of dental traumatology, the president
should hold it with the cooperation of the country and/or district.
Celebration and Condolence
Celebration and condolence will be left entirely to the president of AADT.
Letter of Appreciation
A letter of appreciation will be given to the president who served out his term and is
not reappointed.

2|PagePast Conferences and Photos

1st Conference
Peking University, CHINA
November 2004

2nd Conference
Okayama University, JAPAN
September 2005

3rd Conference
Taipei Medical University, TAIWAN
April 2007

4th Conference
Peking University, CHINA
November 20093|Page5th Conference
Aichi Gakuin University, JAPAN
September 2011

6th Conference
University of Indonesia, INDONESIA
September 2013

7th Conference
Kyushu Dental University, JAPAN
July 2015

8th Conference
Mahidol University, THAILAND
November 20174|Page

The 9th Conference of Asian International
Association of Dental Traumatology (AADT)March 7 - 8, 2020 Cebu City, Philippines

March 7, 2020 at SEDA Ayala Center Cebu Hotel
17:00 – 18:00
Registration
18:00 – 18:30
Executive Meeting
19:00 – 21:00
Welcome Reception
March 8, 2020 at City Sports Club Cebu
08:30 – 08:50
Welcome Address: Dr. Chito Salazar, President SWU
08:50 – 09:30
Keynote Lecture: Prof. Mitsutaka Kimura, President AADT
09:30 – 10:00
Special Lecture 1: Dr. Melanie Karganilla, Philippines
Special Lecture 2: Dr. Takuya Shimada, Japan
10:00 – 10:20
10:20 – 10:40
Special Lecture 3: Dr. Kumiko Nozaka, Japan
10:40 – 10:50
Coffee Break
10:50 – 11:10
Special Lecture 4: Dr. Toshiaki Hashimoto, Japan
11:10 – 11:30
Special Lecture 5: Dr. Yasutaka Yawaka, Japan
11:30 – 12:00
Special Lecture 6: Dr. Stephen Almonte, Philippines
12:00 – 13:00
Lunch Break
13:00 – 13:20
Special Lecture 7: Dr. Norimasa Okafuji, Japan
13:20 – 13:40
Special Lecture 8: Dr. Kazuyo Yamamoto, Japan
13:40 – 14:00
Special Lecture 9: Dr. Hitoshi Kawanabe, Japan
14:00 – 14:30
Special Lecture 10: Dr. Jose Vicente Araneta, Philippines
14:30 – 16:30
Oral Presentations
16:30 – 17:30
Poster Presentations
17:30 – 18:00
Closing Remarks
Dr. Rodivick Docor, Dean, College of Dentistry, SWU
Dr. Omar Rodis, Coordinator, 2020 Organizing Committee
Distribution of Giveaways

5|PageKeynote Lecture
08:50 – 09:30

Keynote Lecture: Prof. Mitsutaka Kimura (Japan)
Professor Emeritus, Kyushu Dental University
Clinical Significance of Peripheral Nerves from the Situation of
Stomatology - The Mechanism of Neural Transmission from
Periphery to Brain, from Birth through AdulthoodSpecial Lectures
09:30 – 10:00

Special Lecture 1: Dr. Melanie Ruth Karganilla (Philippines)
Oral Soft Tissues and Traumatic Injuries

10:00 – 10:20

Special Lecture 2: Dr. Takuya Shimada (Japan)
Oral soft tissue injury in children: Diagnosis, Treatment,
Management, Current situation in Japan

10:20 – 10:40

Special Lecture 3: Dr. Kumiko Nozaka (Japan)
Clinical Study on the Abnormal Position of Maxillary Canines

10:50 – 11:10

Special Lecture 4: Dr. Toshiaki Hashimoto (Japan)
Clinical approach to crown fracture due to the dental trauma
in the period of growth and development

11:10 – 11:30

Special Lecture 5: Dr. Yasutaka Yawaka (Japan)
Approach to outer root resorption of traumatized teeth

11:30 – 12:00

Special Lecture 6: Dr. Stephen Almonte (Philippines)
Periodontal Consideration in Fixed and Partial Removable
Prosthodontics Therapy

13:00 – 13:20

Special Lecture 7: Dr. Norimasa Okafuji (Japan)
HSPs as Functional Factor of the Recovering Periodontal
Ligament in due to Traumatic Mechanical Stress

13:20 – 13:40

Special Lecture 8: Dr. Kazuyo Yamamoto (Japan)
The Restoration of Traumatized Teeth with the Latest Bonding
Techniques

13:40 – 14:00

Special Lecture 9: Dr. Hitoshi Kawanabe (Japan)
Clinical evaluation of combination therapy of dental trauma
and orthodontic treatments

14:00 – 14:30

Special Lecture 10: Dr. Jose Vicente A. Araneta (Philippines)
Why GP’s should Include Temporary Anchoring Devices(TADS) in their PracticeKeynote Lecture

Mitsutaka Kimura
Professor Emeritus
Kyushu Dental University

Clinical Significance of Peripheral Nerves
from the Situation of Stomatology- The Mechanism of Neural Transmission from Periphery to Brain, from
Birth through Adulthood The developmental process of the brain and neurons will be presented in terms of establishingstages of cerebral limbic system (feelings), prefrontal cortex (controlling) and hypothalamusof brain stem (decision making) from childhood through adulthood. The main themes will befocused on the neurons of the newly completed cerebral cortex, the dynamics of nerve fiber
over the period of eruption to completion of tooth and the mechanism of neural transmission
from the periphery to the completed cerebral cortex.

Brief CV
Educational Background
1966
DDS, Graduated from Kyushu Dental University, Japan
1966 – 1973 Assistant Professor, Kyushu Dental University, Japan
1973 – 1976 Lecturer, Kyushu Dental University, Japan
1979 – 2005 Professor and Chairman, Pediatric Dentistry Kyushu Dental University, Japan
1981
Visiting Professor, University of California San Francisco (UCSF), USA
1993 – 1997 Dean of Graduate School, Kyushu Dental University, Japan
2005 – present Professor Emeritus, Kyushu Dental University, Japan
Professional Background1998 – 2000 President, Japanese Society of Pediatric Dentistry
1997 – 2002 Director & Secretary General, Pediatric Dentistry Association of Asia (PDAA)
1998 – 2000 Editorial Board Director, Japanese Association for Dental Science
1999 – 2005 Director, Japanese Society of Pediatric and Oral Surgery
1996 – present Visiting Professor, School of Stomatology, Beijing University
2001 – present Guiding Professor, University of Indonesia
2001 – present President, Japan Association of Dental Traumatology (JADT)2004 – present President, Asian International Association of Dental Traumatology (AADT)2015 – present Fellow, International Association of Dental Traumatology (IADT)Special Lecture 1

09:30 – 10:00

Melanie Ruth Karganilla
Head, Oral Medicine Section
University of the Philippines
Philippines

Oral Soft Tissues and Traumatic Injuries
Background: Aside from infection and chronic inflammatory diseases, trauma-related lesions
could affect the soft tissues of the oral cavity. It is not uncommon for dental practitioners tosee patients with ulceration and erosions, cystic lesions, hyperkeratosis, soft-tissue growth, andeven necrotic tissues. These lesions may actually be due to physical and mechanical, thermal,
chemical, and even radiation injuries.
It is therefore important to recognize these lesions so that proper treatment and management
could be instituted.

Brief CV
Educational Background
1994
DDM, University of the Philippines College of Dentistry, Philippines
2006 – 2008
International Summer School in Clinical Periodontology and Implantology, RuprechtKarl University of Heidelberg, Germany
Professional Background1994
1st Place, December 1994 Board Exams for Dentists
2008
Head, Oral Medicine Section, which comprises Oral Surgery, Periodontics, Oral
Diagnosis and Endodontics, of the Department of Clinical Dental Health Sciences.
Awards & Memberships
Fellow, Philippine Board of Periodontology
Certified Specialist, Periodontics
Fellow, Academy of Dentistry International

8|PageSpecial Lecture 2

10:00 – 10:20

Takuya Shimada
Faculty of Medicine and Health Sciences
Yamaguchi University
Japan
E-mail: v908eb@yamaguchi-u.ac.jp

Oral soft tissue injury in children:
Diagnosis, Treatment, Management, Current situation in Japan
Background: Children who are in their growth and development stage, both mentally andphysically, may consequently encounter injuries often caused by their inexperienced athletic
and behavior judgment abilities. We will introduce the diagnosis, treatment, and managementof oral soft tissue trauma in children that is primarily caused by toothbrush accidents.
Although various differences exist in the degree of damage, including the cases presented in
the present study, many cases were followed up in terms of antibacterial drug administrationand suturing, demonstrating efficient therapeutic outcomes; however, some patients had to behospitalized. Furthermore, there have been registered accidents wherein the pharynx was
pierced and this caused intracranial damage resulting in death. CT and MRI are promptly
performed in cases where the wound is judged to be deep enough or when the vital signs exhibit
abnormalities.

Brief CV
Educational Background2009
DDS, Kagoshima University, School of Dentistry, Japan
2015 – present Yamaguchi University, Faculty of Medicine and Health Sciences, Japan
Professional Background2009 – 2010
Department of Oral and Maxillofacial Surgery, Kyoto University Hospital. Kyoto. Japan2010
Department of Oral and Maxillofacial Surgery, Ijinkai Takeda General Hospital, Japan
2011 – 2013
Department of Oral and Maxillofacial Surgery, Japanese Red Cross Society Wakayama
Medical Center, Wakayama, Japan
2013 – 2015
Department of Oral and Maxillofacial Surgery, Shizuoka General Hospital, Japan

9|PageSpecial Lecture 3 10:20 – 10:40

Kumiko Nozaka
Aoba Dental and Pediatric Dental ClinicJapanE-mail: kuminoza@eos.ocn.ne.jp

Clinical Study on the Abnormal Positionof Maxillary Canines
Background: An ectopic position of an unerupted maxillary canine may cause abnormal root
resorption of the lateral or/and central incisors. The purpose of this study was to review andexamine treatment options for preventing such a result.
Materials & Methods: We reviewed panoramic radiographs of patients who visited the Aoba
Dental Pediatric Clinic. The period of the dentitions examined was from the eruption of thebilateral maxillary central and lateral incisors to the completion of the eruption up to the firstor second molars including bilateral maxillary canines. These cases were divided into thegroups with and without denture guidance.
The locations of the canine tooth germs were classified into the following six types: ① apexof the primary canine, ② mesial to the apex of the primary canine, ③ between the apexes ofthe primary canine and the lateral incisor, ④ distal to the apex of the lateral incisor, ⑤ theapex of the lateral incisor, ⑥ the tooth germs located at locations other than these sites.
Results: If the canine tooth germ was located at ① or ② when the maxillary central and lateralincisors erupted, the eruption path of the canine was normal. However, when the canine tooth
germ existed at ③, some types of denture guidance were conducted in one third of the cases.
Denture guidance and fenestration were necessary when the canine tooth germ existed at ④ or⑤. Recently, we have seen an increase of ectopic canine tooth germs in the site ⑥. Those
germs were horizontally impacted on the palatal or labial sides, causing the root resorption ofcentral incisors.
Conclusion: It is of importance in radiographic examination of the canine tooth germ at theeruption of maxillary central and lateral incisors for the establishment of the proper treatment
plans.

Brief CV
Professional Background1979 – 2001
Associate Professor, Department of Pediatric Dentistry, School of Dentistry,
Iwate Medical University
2001 – 2002
Dentist, Department of Pediatric Dentistry, Morioka Children’s Hospital
2002 – present Dentist, Private Dental Office (Aoba Dental and Pediatric Dental Clinic)

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Special Lecture 4 10:50 – 11:10

Toshiaki Hashimoto
Clinical Professor, Fukuoka Dental College
Japan
Email: toshikita24-41@yk2.so-net.ne.jp

Clinical approach to crown fracture due to the dental trauma
in the period of growth and development
Background: During the period of development, trauma to tooth with immature root often
occurs regardless of whether it is a deciduous tooth or permanent tooth, and it is necessary totake into consideration the growth of the tooth root. In the case of fracture fragment due tocrown fracture, adhesion is attempted, and if not, repair is performed using CR crown, etc. In
the case of pulp exposure, consideration of its size, time since injury, degree of infection,alignment status, etc. is made and treatment according to the situation such as direct pulp
capping, partial pulpotomy (Cvek), pulpotomy, pulpectomy, infected root canal treatment isperformed. In the case of tooth with immature root in which infection of only the dental pulpof the crown is suspected, apexogenesis is attempted. In the case of apical periodontitis due tocentral cusp fracture, etc., pulp revascularization or apexification is attempted. In any case, it
is important to protect the Hertwig epithelial sheath involved in tooth root development asmuch as possible. It is important to perform examination from a comprehensive angle and takeappropriate measures at the appropriate time with continuous observation.

Brief CV
Educational Background
1994
DDS, Fukuoka Dental College, Japan
1987
PhD, Kyushu Dental College, Japan
Professional Background1979 – 1982
Assistant Professor, Pediatric Dentistry, Fukuoka Dental College, Japan
1982 – present Hashimoto Clinic of Pedodontics & Orthodontics
2010 – present Clinical Professor, Fukuoka Dental College
Awards & Memberships
Director of the Japan Association of Dental Traumatology
Standing Director in Asia of the International Association of Dental Traumatology
President of Kyushu Regional chapter of the Japanese Society of Pediatric Dentistry
Chairperson of Pediatric Oral Medical Society for the Study
Delegate of Public Interest Corporation Japanese Society of Pediatric Dentistry
Attending Physician of Japanese Trauma Dentistry Society

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Special Lecture 5

11:10 – 11:30

Yasutaka Yawaka
Dentistry for Children and Disabled Persons
Department of Oral Functional Science
Faculty of Dental Medicine
Hokkaido University, Sapporo, Japan
Email: yawaka@den.hokudai.ac.jp

Approach to external root resorption of traumatized teeth
Background: External root resorption is observed in cases of replanted teeth with dental
trauma. Root canal dressing containing calcium hydroxide (Ca(OH)2) is one recommended
clinical approach for external root resorption. However, complete control of external resorption
may not be possible due to certain factors such as the smear layer, which is formed by reaming
and filing during root canal treatments. The smear layer plugs dentinal tubules and inhibits theeffects of Ca(OH)2 as root canal dressing material.
Our studies showed root canal irrigation with ethylene-diamine-tetra-acetic-acid (EDTA) andsodium hypochlorite (NaOCl) with an ultrasonic device, is the most effective method to
remove the smear layer. Additionally, an alkaline environment at the outer root surface due toion diffusion from Ca(OH)2 was observed following this treatment.
Therefore, the combined use of EDTA and NaOCl with an ultrasonic device for root canalirrigation leads to good control of external root resorption.

Brief CV
Professional Background1990 – 2003
Assistant Professor, Pediatric Dentistry, Hokkaido University Dental Hospital
2003 – 2005
Lecturer, Oral Rehabilitation, Hokkaido University Hospital2005 – present Professor, Dentistry for Children and Disabled Persons, Department of Oral Functional
Science, Graduate School of Dental Medicine, Hokkaido University.

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Special Lecture 6 11:30 – 12:00

Stephen AlmontePresident, Philippine Dental Association
Philippines

Periodontal Considerations in Fixed and Partial Removable
Prosthodontics Therapy
Background: The lecture will present various periodontal considerations for the success of
prosthodontics both in fixed and removable partial dentures. The general practitioner needs toobserve and be guided properly on the protocol of analyzing and having a closer look at theperiodontal status of the remaining dentition prior to any prosthodontic procedures.

Brief CV
Educational Background
1999
Doctor of Dental Medicine, Centro Escolar University, Philippines
2006
Master of Science in Dentistry - Periodontics, Centro Escolar University, Philippines
Professional Background2002
Advance Dental Education Program – Orthoontics, Philippines
2007
Implant and Surgery Training Program, Delos Santos Hospital, Philippines
2009
Implant and Surgery Training, Changgung Hospital, Taiwan.
Awards & Memberships
Fellow, Philippine Academy of Implant Dentistry
Fellow, Pierre Fauchard Academy
Member, Philippine Prosthodontic Society Incorporated
Board of Trustee, Philippine Dental Association Incorporated
Member, International Congress of Oral Implantologists

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Special Lecture 7 13:00 – 13:20

Norimasa OkafujiProfessor and Chair, Department of Orthodontics
School of Dentistry, Matsumoto Dental University
Email: norimasa.okafuji@mdu.ac.jp

HSPs as Functional Factor of the Recovering Periodontal
Ligament in due to Traumatic Mechanical Stress
Background: Dental traumatic injury is caused by sudden force to the mouth and teeth. To
investigate the histopathological traumatic changes and repair, we examined the reactions of
the mouse periodontal tissues after receiving the mechanical stress occurring upon clinicalapplication. Histopathological changes as well as the expressions of HSP27 and p-HSP27 in
the periodontal tissues were examined after removal of the mechanical stress.
Materials & Method: A total of 40 8-week-old male ddY mice were used in the examination.
Application of mechanical stress was performed according to the insertion of separator was
performed following Waldo’s method. After 20 minutes (m), 1 hour (h), 3 h, 9 h, 24 h, 3 days(d) and 1 week (w), the periodontal tissues of the right maxillary molar region were removed.
Results: The increase in mechanical stress up to 3 hours led to pathological changes that caused
a space in between stretched periodontal ligament fibrous bundles and fibroblasts as well as
narrowing of the periodontal ligament space. Degenerative changes also occurred in thepressure side. Pathological changes did not only occur due to mechanical stress but also at thetime of the release of mechanical stress exposure which increased over time. In the control
group, both HSP27 and p-HSP27 were negative in the pressure side after mechanical stress
was released 3 hours later. On the other hand, the tension side showed a strong positive reaction.
The proteins were also expressed after 20 min, 1 hour, 3 hours and 9 hours. The strongest
expression was observed at 24 hours. A decrease in the intensity of expression was observed
3 days and 1 week later
Conclusion: The results suggest that HSP27 plays an important role in the recovery of injured
cells in the periodontal tissues.

Brief CV
Professional Background1987 – 2002
Assistant Professor, Department of Orthodontics, Matsumoto Dental University, Japan
2002 – 2003
Visiting Scholar, Department of Orthodontics, University of Washington, USA
2007 – present Professor, Department of Hard Tissue Research, Matsumoto Dental University, Japan2018 – present Professor and Chair, Department of Orthodontics, Matsumoto Dental University, Japan

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Special Lecture 8

13:20 – 13:40

Kazuyo Yamamoto
Professor and Chair, Department of Operative Dentistry
Osaka Dental University
Email: yamamoto@cc.osaka-dent.ac.jp

The Restoration of Traumatized Teeth with
the Latest Bonding Techniques
Background: Bonding systems are now essential for dental treatment. Composite resin
restoration, resin cement, fissure sealant, and direct bonding for orthodontics. In the field ofdental traumatology, bonding is also applied to various regions. Especially, bonding systems
for teeth have recently progressed markedly from the first-generation system targeting only
enamel to the latest system, 1 Bottle- 1Step (All in One) system. Resin bonding systems are
now the leading part of restorative treatment based on Minimal Intervention Dentistry (MID)
proposed by the FDI because, together with their esthetics, they are capable of minimizing theamount of cutting and conserving the healthy parts of teeth as much as possible, and there is
no doubt that they will further develop in the future. Using adhesive resin, not only can theamount of tooth cutting be markedly decreased but also traumatized teeth previously requiring
sacrifice, such as pulpectomy and tooth extraction, may be conserved by minimizing
invasiveness depending on cases. Therefore, the use of adhesive resin promotes protection of
the teeth. In this lecture, I would like to talk about the adhesion mechanism of bonding systems,
proper use of different systems, and treatment methods of fractured tooth using bonding.

Brief CV
Educational Background
1991
PhD, Osaka Dental University, Japan
Professional Background1992 – 1993
Guest Researcher of RWTH Aachen University, Germany
2005 – present Professor and Chair, Department of Operative Dentistry, Osaka Dental University, Japan
2014 – present Vice Director of Osaka Dental University Hospital

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Special Lecture 9

13:40 – 14:00

Hitoshi Kawanabe
Ohu University School of DentistryJapan
E-mail: kawanabe@hotmail.co.jp

Clinical evaluation of combination therapy of dental trauma andorthodontic treatments
Background: Tooth dislocation is often encountered in dental clinics and generally involves
concussion, subluxation, lateral luxation, invagination, extrusion, and complete dislocation.
Case: In this study, we report the case of a patient who presented with a dislocated tooth alongwith maxillary protraction owing to labial inclination of maxillary incisors and moderate
crowding of the mandibular lateral incisors. Combination therapy comprising treatment of thedislocated tooth, whitening, and orthodontic treatment was performed. The patient had ahistory of trauma. Orthodontic treatment was done for the ankylosed teeth. The patient wasadvised that root resorption of the tooth was likely to occur. Nonetheless, orthodontic treatment
was performed according to the patient’s wishes.
Discussion and Conclusion: Kawai et al suggested that treating maxillary protraction at an
early age is beneficial considering most injured patients show maxillary protrusion and injury
to the maxillary incisors. They also suggested that examining the history of the injury at theinitial visit is important because it will cause malocclusion. Combination therapy for adislocated tooth owing to injury and orthodontic treatment is often required.

Brief CV
Professional Background2005 – 2007
Associate Professor, Fukuoka Dental College, Japan
2007 – 2014
Assistant Director, Itoh Dental Hospital, Kumamoto, Japan
2014 – present Associate Professor, Ohu University School of Dentistry, Japan

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Special Lecture 10

14:00 – 14:30

Jose Vicente A. Araneta
Southwestern University-Phinma
Urgello St. Cebu City, Philippines
E-mail: jjaraneta@swu.phinma.edu.ph

Why GP’s should Include Temporary Anchoring Devices (TADS)
in their Practice
Background: There is no doubt that the emergence of the use of temporary anchoring devices(TADs) in Orthodontics the past few years has eliminated the need for the traditionalanchorages like the Transpalatal Arch (TPA), Nance Holding Arch, headgears, etc., and mosttraditional anchorages and had made treatment mechanics a little less complicated and ingeneral, shortened treatment time. However, there are still a lot of dentists who still are notgetting the advantages of TADs in their practice.
My presentation is about two cases that hopefully in my own small way, will convince mycolleagues about the misconception of the use of TADs, what its true benefits are and how
they will greatly benefit by its incorporation to their clinical practice.

Brief CV
Educational Background
1987
Doctor of Dental Medicine, Southwestern University, Cebu City, Philippines
Professional Background1987 - present Faculty, Orthodontics, College of Dentistry, Southwestern University-Phinma
1993 - present Dentist, Araneta Dental Clinic, Philippines.
2019 - present Orthodontic Intern, Cebu Doctors University, Cebu City, Philippines

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Oral Presentations
Session 1

14:30 – 15:30 (8 min presentation and 2 min Q&A)

OP 01

14:30 – 14:40 Dr. Arief Waskitho (Indonesia)
Botulinum toxin and cytokine therapy of orofacial neuropathic
pain by trauma
14:40 – 14:50 Dr. Makoto Saito (Japan)
A case of preserving teeth with root fractures by replantationin an interdisciplinary approach
14:50 – 15:00 Dr. Nitesh Tewari (India)
Long-term effects of traumatic dental injuries of primarydentition on permanent successors
15:00 – 15:10 Dr. Rosette Pagpaguitan (Philippines)
Ameloblastoma: Rare yet common
15:10 – 15:20 Dr. Tsendsuren Khurel-Ochir (Mongolia)
p21 deficiency is susceptible to TMJ-Osteoarthritis withmechanical stress
15:20 – 15:30 Dr. Ayako Yoshida-Yoshimitsu (Japan)
Safety education for elementary schools based on theoccurrence of dental trauma in Japan

OP 02
OP 03
OP 04
OP 05
OP 06

Session 2

15:30 – 16:30 (8 min presentation and 2 min Q&A)

OP 07

15:30 – 15:40 Dr. Resmi Raju (India)
A composite cell sheet fabrication and its usage in periodontal
tissue regeneration
15:40 – 15:50 Dr. Shuhei Kubo (Japan)
Replantation of Avulsed Immature Mandibular PermanentCentral and Lateral Incisors: A Case Report
15:50 – 16:00 Dr. Thaw Dar Oo (Myanmar)
Systemic circulatory influence on pulpal circulation in young
adult human teeth
16:00 – 16:10 Dr. Pornpoj Fuangtharnthip (Thailand)
Clinical consequences after dental trauma treatment
16:10 – 16:20 Dr. Hirofumi Tsuji (Japan)
A follow-up case for 19 years in the maxillary central incisor
with tooth crown fracture by dental trauma
16:20 – 16:30 Dr. Ann Patrice Perolino (Philippines)
Consequences of Incompetent Root Canal Treatment

OP 08
OP 09
OP 10
OP 11
OP 12

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OP 01: Botulinum toxin and cytokine therapy oforofacial neuropathic pain by trauma
Arief Waskitho1,2, Takuma Iwasa1, Yoshizo Matsuka1
1Department of Stomatognathic Function and Occlusal Reconstruction,

Graduate School of Biomedical Sciences, Tokushima University, Japan

2Department of Prosthodontics, School of Dentistry, Faculty of Medical and

Health Sciences, Universitas Muhammadiyah Yogyakarta, Indonesia

email: arief.waskitho.85@gmail.com
Background: In Indonesia, 31.4 % of accident is on the road, and 11.9 % of accident is related
to head injury. The number of maxillofacial injuries, which is the main etiological factor in
maxillofacial fractures, is continuously increasing due to the rise in traffic congestion. In the
facial area, zygomatic-orbital fracture is one of the results of road traffic accident,
characterized by sensory neuropathy in the area of innervation of the infraorbital nerve. Here,we conducted an animal study mimicking the infraorbital nerve damage by trauma and whether
Botulinum toxin (BoNT) and cytokine therapy could reduce orofacial neuropathic pain.
Materials & Methods: Male Sprague-Dawley rats were used in this study. We induced
trigeminal neuropathic pain by infraorbital nerve constriction (IONC), measured as a decreasein the head withdrawal threshold. BoNT (100 pg in 0.1 ml of saline) or saline wasintracutaneously administered at the center of the IONC side whisker pad three days after
surgery. Cytokine therapy of recombinant IL-10 (0.4 μg/100 g) in PBS, anti-CXCL2 (66μg/100 g) in PBS, or only PBS (control) was injected into IONC side trigeminal ganglion (total
volume was 18 μl).
Results: BoNT peripheral side injection attenuated neuropathic pain. Recombinant IL-10 oranti-CXCL2 injection into trigeminal ganglia decreased pain behavior.
Conclusions: Our results show that BoNT, IL-10, or anti-CXCL2 are therapy options forneuropathic pain.

Brief CV
Educational Background2002 – 2009
DDS, Universitas Gadjah Mada, Indonesia
2010 – 2014
MS, Universitas Gadjah Mada, Indonesia
2018 – present PhD Course, Tokushima University, Japan
Professional Background2015 – present Lecturer, School of Dentistry Universitas Muhammadiyah Yogyakarta, Indonesia
2010 – present Private practiceAwards & Memberships
2019
Tokushima University, Research Award of Oral Sciences: Bronze Prize
2019
Member, Japanese Society of Stomatognathic Function

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OP 02: A case of preserving teeth with root fractures by
replantation in an interdisciplinary approach
Makoto Saito
Saito Dental Clinic

email: drdeibu@icloud.com

Background: A 56-year-old man. Initial visit: April 2014. Present history: In February 2014,
he fell and fractured roots of teeth #12, #21 and #22. He was referred from the hospital
departments of emergency and oral & maxillofacial surgery and presented to our clinic. The
patient was a farmer who chewed vegetables by his front teeth to evaluate the quality.
Therefore, he requested to preserve his front teeth.
Treatment outcome: We treated tooth #12 by tooth extraction and replantation, #21 byadhesion of broken pieces and #22 by extrusion. For all these teeth, ferrules were secured withcrown prostheses were made. Prior to the crownwork, an orthotist had performed orthodontic
treatment to improve excess overjet that increased the risk of the fractures.
Discussion: This treatment followed the desire of the patient. It may have been impossible toachieve the favorable result if any sole dentist was engaged in the patient. We collaborated
with a dental surgeon and an orthotist in addition to a primary physician certified by the Japan
Association of Dental Traumatology. The interdisciplinary approach was considered effective.

Brief CV
Educational Background
1982
DDS, Aichi Gakuin University School of Dentistry
Professional Background1982 – 1985
Medical Doctor, Shimane Medical University Department of Oral and Maxillofacial
Surgery
1985 – present Director, Saito Dental Clinic, Izumo-shi
Awards & Memberships
Authorized Dentist and Instructor, Japan Association of Dental Traumatology
Authorized Dentist, Japan Academy of Esthetic Dentistry
Authorized Dentist, Society of Japan Clinical Dentistry

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OP 03: Long-term effects of traumatic dental injuries ofprimary dentition on permanent successors
Nitesh Tewari
Associate Professor, Pedodontics & Preventive Dentistry
Centre for Dental Education & Research
All India Institute of Medical Sciences, India
email: dr.nitesht@gmail.com

Objective: Traumatic dental injuries of the primary dentition (TDI-p) have a global prevalenceof approximately 11%-47%. They have immediate and long-term effects. Original researchanalyzing the long-term sequelae of TDI-p on permanent dentition (LSP) are few in number.
The aim of this study was to explore the correlation between age of TDI-p, type of TDI-p and
LSP. Material and Methods: Retrospective analysis of patient data from 2008-2017, reportingwith LSP due to TDI-p, was performed. Uniform protocols and complete radiographicphotographic records were analyzed. There were 638 LSP reported with 596 teeth having
complete records. Results: There were 286 children with 153 males (53.5%) and 133 females(46.5%). Mean age of TDI-p causing LSP was 36.57 ± 11.51 months, with severity increasingin the younger age group. The highest number of LSP was associated with avulsion injuries(218, 36.58%), and the odds ratio of the type of TDI-p affect the severity of LSP was 2.0163.
Mean age of reporting was 8.54 ± 2.19 years and was lowest for enamel discolorations. Most
LSP were not associated with any associated feature (AF), although impaction was highest
among all AF (63, 10.57%). Conclusion: Age and type of TDI-p affect LSP, with the former
being the stronger determinant of its severity. Mean age of reporting of LSP is dependent upon
both type of LSP and AF. LSP due to TDI-p can further be graded in terms of severity.

Brief CV
Professional Background2018 – present Associate Professor: AIIMS, New Delhi, India
2015 – 2018
Assistant Professor, AIIMS, New Delhi, India
2014 – 2015
Reader: BBD University, Lucknow, Uttar Pradesh, India
2010
Senior Lecturer, BBD University, Lucknow, Uttar Pradesh, India
2010
Senior Lecturer, Chandra Dental College, Barabanki, India
Awards & Memberships
Author, 26 international publications
Editorial Board Member in two international journals and reviewer in several acclaimed ones
Director, Japanese Association of Yo‐go Teacher Education
Fellow, International Association of Dental Traumatology and Japan Dental Association.
Founding Joint Secretary, Indian Society of Dental Traumatology

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OP 04: Ameloblastoma: Rare yet common
Rosette Pagpaguitan
Southwestern University PHINMA
Urgello St. Cebu City, Philippines

email: rgpagpaguitan@swu.phinma.edu.phBackground: Ameloblastoma has long been recognized as a rare, benign odontogenic tumor.
Although rare, it is considered as one of the most common odontogenic tumor to date. Becauseof its characteristic persistent growth and its ability to produce marked facial deformity,
ameloblastoma tends to be easily recognized even with a general practitioner.
Having the knowledge on the nature, progression and possible complications of ameloblastoma
will lead to the creation of a more comprehensive treatment plan that would render the best
long-term prognosis and management for the patient.

Brief CV
Educational Background
2015
DMD, Southwestern University PHINMA, Philippines
Professional Background2018
Externship Program in Hospital Dentistry and Oral Surgery, Philippine General Hospital
2018
Faculty, Southwestern University PHINMA College of Dentistry, Philippines
Awards & Memberships
2016First Place, Philippine Dental Licensure Examination

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OP 05: p21 deficiency is susceptible to TMJOsteoarthritis with mechanical stress
Tsendsuren Khurel-Ochir1, Takashi Izawa2, Takuma Sakamaki 1 ,Hiroki Mori2, Akihiko Iwasa2, and Eiji Tanaka2
1 Department of Orthodontics and Dentofacial Orthopedics, Tokushima

University Graduate School of Oral Sciences
2 Department of Orthodontics and Dentofacial Orthopedics, Institute of

Biomedical Sciences, Tokushima University Graduate School

email: ktsendsuren@gmail.com
Background: The temporomandibular joint (TMJ) plays a critical role in speech, mastication,and swallowing. This bilateral, diarthrodial, and ginglymoid joint is not exempt to injury.
Late complications of traumatic TMJ injuries include facial asymmetry, malocclusion, growth
disturbance, osteoarthritis, and ankylosis. The cyclin-dependent kinase inhibitor p21 is
identified as a potent inhibitor of cell cycle progression. Recently, it has been proposed that
p21 is a regulator of transcription factor activity. Furthermore, p21 regulated the expression of
MMP13 and aggrecan (ACAN). These molecules are believed to be the onset of TMJ-OA in
mandibular cartilage. In this study, we evaluated the role of p21 in response to mechanicalstress. Materials and Methods: In in vivo study, eight-week-old p21+/+ and p21-/- mice wereused. The TMJs were overloaded during a period of 10 days by application of a sliding plate
on incisors to keep the mandibular position posterior by biting and upward. After theexperimental period, all mice were sacrificed and the TMJs were dissected for histological,
immunohistochemical and micro CT analyses. Result and Discussion: HE staining and microCT analysis, p21-/- mice showed subchondral bone destruction and also p21-/- mice hadthinner cartilage and smaller areas of proteoglycans than WT mice. Immunohistochemical
analysis indicated that MMP-9 and MMP-13 positive cell numbers were significantly larger in
WT mice with mechanical stress compared to control mice while ACAN positive cell numbers
were lower in WT mice with mechanical stress compared to p21-/- mice with sliding plates.
Conclusion: Our results suggest that p21 in chondrocytes functions to maintain matrix
synthesis by regulation of ACAN and MMP-13 expression. It is concluded that cell cycle
related molecule p21 might regulate TMJ-OA pathogenesis in mice.

Brief CV
Educational Background2008 – 2014
DDS, School of Dentistry, Mongolian National University of Medical Sciences
Ulaanbaatar, Mongolia
2015
Orthodontic Internship, Yonsei University School of Dentistry, South Korea
Professional Background2014 – 2016
Dentist, Gandent Dental Clinic
2018 – present PhD Course, Tokushima University, Japan
Awards & Memberships
2019
Tokushima University, Research Award of Oral Sciences: Silver Prize2018
HIRAKU 3MT Competition 2018, Hiroshima University, Hiroshima. “Runner-up
Award”. Role of cell-building protein (p21) on osteoarthritis of the Jaw Joints.

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OP 06: Safety education for elementary schools based on
the occurrence of dental trauma in Japan
Ayako Yoshida (Yoshimitsu)
Siebold University of Nagasaki, Japanemail: aya.yoshi.0591@gmail.com

Objective: The purpose of this study was to conduct safety education based on the prevention
and countermeasures of children's trauma status, especially dental trauma in elementary
schools.
Methods: The latest data from the Japan Sports council were used. We analyzed the actual
conditions of children's trauma in schools, especially oral teeth, and behavioral
characteristics and educational situations in children's school life, classes, break between
classes time, lunch break, after school.
Results: The situation of the children's dental trauma was as follows. (When, where, and what
were they doing) (1) The diagnosis results of the children's dental trauma were dislocation,
tooth fracture, etc. (2) The children's dental trauma were occurred by fall, collision, etc. (3)The children's dental trauma were occurred during break time, class, etc.
Conclusion: The characteristics of the children's dental trauma were revealed. Among the face
injury, the dental trauma is the second highest after the eye injury. Abarticulation and Tooth
Fracture consist mostly of the children's dental trauma. The case study of dental trauma leads
some findings about agenda and consideration for the effective health education in school toenhance taking preventive measures for dental trauma.

Brief CV
Educational Background1975
B.Ed., Kumamoto University, Japan
1997
M.Ed. in Graduate School of Education, Fukuoka University of Education, Japan
Professional Background1997 – 2008
Lecturer, Faculty of Health Sciences and Welfare, Seinan Jo Gakuin University, Japan
2008 - 2017
Associate Professor, Faculty of Health Sciences and Welfare, Seinan Jo Gakuin
University, Japan
Awards & Memberships
Executive Director, The Japanese Society for Education of Children
Director, Japan Association of Dental Traumatology
Executive Director, Kitakyushu Children’s Oral Health Association
The Japanese Association of School HealthDirector, Japanese Association of Yo‐go Teacher Education

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OP 07: A composite cell sheet fabrication and its usage inperiodontal tissue regeneration
Resmi Raju1, Masamitsu Oshima1, Tsuyoshi Morita1,
Yan Huijiao1, Miho Inoue1, Arief Waskitho1, Otto Baba1,
Masahisa Inoue2, Yoshizo Matsuka1
1 Tokushima University, Japan.
2Tokushima Bunri University, Japanemail: karuvachattu@gmail.com
Background: Various studies have reported that the prevalence of periodontal disease in India
is 45%. Periodontal tissue regeneration requires simultaneous regeneration of 3 different
tissues: cementum, periodontal ligament (PDL) and alveolar bone. Here, we developed a new
periodontal tissue regeneration technique using cell sheet engineering.
Materials and Methods: By cell sheet engineering technology, 3 types of cell sheets were
fabricated. Single cell sheets were made by either PDL cells or MC3T3-E1 cells. And acomplex cell sheet was fabricated by layering PDL cells over MC3T3-E1 cells. Following
ectopic and orthotopic transplantation of cell sheets, transplants were analyzed by histology,
immunohistochemistry and micro-CT.
Results: Micro-CT, histology and immunohistochemistry revealed the presence of bone-liketissue and PDL-like fibers in ectopic and orthotopic transplants of complex cell sheet.
Conclusion: These results demonstrates the fabrication of a complex cell sheet andregeneration the PDL and bone tissue simultaneously in a periodontal tissue defect model.

Brief CV
Educational Background2002 – 2008
BDS, SRM Dental College, India
2010 – 2013
MDS, SRM Dental College, India
2016 – present PhD Course, Tokushima University, Japan
Awards & Memberships
2013
First rank holder and gold medalist in MDS, SRM University, India
2013
Dr Udaya Raghav Reddy Memorial Award, SRM University, India
2018 – 2020
Otsuka Toshimi Scholarship Scholar
2019
Research Award of Oral Sciences 2019, Tokushima University
2019
Young Researcher Award, Tokushima University
2019
Hosoi Kazuo Award, Tokushima University
2019
Koraku Award 2019, Tokushima University

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OP 08: Replantation of Avulsed Immature Mandibular
Permanent Central and Lateral Incisors: A Case Report
Shuhei Kubo1, Shohei Kubo2
1 Machida Oral Health Center, Special Needs Dental Clinic, Tokyo, Japan2

Department of Oral and Maxillofacial Surgery
Tokai Central Hospital, Gifu, Japanemail: pxx05533@nifty.com

Background Tooth avulsion is one of the most serious of all dental injuries. In case ofcomplete dislocation, replantation is possible when the local oral conditions are good. The
most commonly affected teeth are the maxillary central incisors.
Case Report: This case report is regarding the replantation of the mandibular central andlateral incisors in an eight-year-old girl with hearing impairment who fell at school and visited
our clinic approximately one hour after injury. The dislocated teeth were found and immersed
in a preservative solution and brought with the patient. We immediately replanted thoseincisors and applied fixation for 3 weeks. Follow-up examinations were performed every 1 to
3 months. Three months after the injury, both the central and lateral incisors showed a positive
reaction in dental pulp electro diagnosis findings. The patient was followed up until 12 months
after injury, although no complications, such as crown discoloration, dental pulp cavity
stenosis, or external root resorption, were observed. In addition, there were no suspicious
findings in areas around the roots of the affected teeth. In the present case. We considered thatthe course might be clinically favorable without root canal treatment, as the condition frominjury to replantation was good.

Brief CV
Educational Background
1986
PhD, Clinical Oral Pathology (Pediatric Dentistry), Tokyo Dental College
Professional Background1986 – 1997
Assistant Professor, Department of Pediatric Dentistry, Tokyo Dental College
1997 – 2008
Senior Assistant Professor, Department of Pediatric Dentistry, Tokyo Dental College
2006
Visiting Scholar, Department of Pediatric Dentistry, School of Dentistry, University ofCalifornia Los Angeles, USA
2008 – 2013
Senior Assistant Professor, Division of Pediatric Dentistry, Department of Clinical Oral
Health Science, Tokyo Dental College2013 – present Machida Oral Health Center, Special Needs Dental Clinic

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OP 09: Systemic circulatory influence on pulpal
circulation in young adult human teeth
Thaw Dar Oo* 1, S. Kakino 2, M. Kusano 1, H. Ikeda 1,
M. Miyashin 2, T. Okiji 1
1 Department of Pulp Biology and Endodontics, Division of Oral Health

Science, Graduate School, Tokyo Medical and Dental University, Japan

2 Department of Pediatric Dentistry/Dentistry for Persons with Special Needs,

Division of Oral Restitution, Tokyo Medical and Dental University, Japanemail: thawendo@tmd.ac.jp
Objective: The aim of this experiment was to investigate the condition of pulpal circulation ofsound permanent teeth using Transmitted-light Plethysmography (TLP) under the systemic
influence of passive circulatory stimulation with foot bath using warm water.
Materials and Methods: Thirty intact permanent maxillary central incisors in 30 volunteers(aged 25-35 years) with no history of cardiac disease and long-term medication were examined(approved by the Ethical Committee of the Graduate School of TMDU, No. D2017-033). An
individual acrylic resin cap was fitted to each experimental tooth, and the photodiode and LED
were fixed through a hole made on the labial and palatal side, respectively, of the cap. TLP
with 525 nm LED and finger photoplethysmography were simultaneously recorded. All thesubjects underwent foot bath (43qC warm water) for 30 minutes and TLP of the examined
tooth, body temperature, blood pressure, heart rate, and skin blood flow were monitored.
Values at -5 to 0 min (baseline), 25 to 30 min (foot warming), 30 to 35 min (just after footwarming) and 40 to 45 min (after removal of foot warming) were statistically analyzed using
a repeated measures one-way ANOVA followed by Bonferroni post hoc test.
Results: The TLP amplitudes were gradually decreased along with the duration of footwarming, increased again just after removing the foot warming, and decreased significantly (P< 0.05) at the end of the experiment to the level similar to the baseline. The body temperature,heart rate and skin blood flow were increased during foot bath (P < 0.05) and gradually
decreased after foot bath but mean arterial pressure did not change significantly.
Conclusion: Passive circulatory stimulus with foot warming caused a transient increase inpulpal blood flow followed by returning to its normal level, in healthy young adult human teeth.

Brief CV
Educational Background2001 – 2006
BDS, University of Dental Medicine, Yangon, Myanmar
2016 – present PhD candidate, Tokyo Medical and Dental University, Graduate School of Dentistry, Japan

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OP 10: Clinical consequences after dental trauma
treatment
Pornpoj Fuangtharnthip
Department of Advanced General Dentistry,
Mahidol University, Faculty of Dentistry, Bangkok, Thailand

email: pornpoj.fun@mahidol.ac.th

Background: It is widely accepted that various types of dental trauma can lead to a wide rangeof clinical consequences, even with or without immediate treatment. Unexpected injury bringsout the different degree of damage and complications to oral tissues, most likely depending onsite, severity, and teeth/tissues involved. Moreover, clinical consequences after the trauma
depend on appropriateness of first aid, elapsed time, type of dentition and post-treatment care.
These factors cause the management of dental trauma to become less straightforward andinevitably unpredictable. Therefore, it is worth learning the real clinical response of dental
trauma cases in many aspects. The presentation will focus on the clinical consequences after
long-term follow-up of those teeth experiencing trauma. Cases with tooth avulsion, as well asother cases with root fracture of deciduous and permanent teeth will be reported comparatively
in order to find out any difference of their consequences.

Brief CV
Educational Background1986-1994
Doctor of Dental Surgery (DDS), Mahidol University, Faculty of Dentistry, Thailand
1995-2000
Certificate of Training in Pediatric Dentistry, Tokyo Medical and Dental University,Japan
1995-2000
Ph.D. (Dental Science), Tokyo Medical and Dental University, Japan
Professional Background1994-2004
Lecturer, Department of Advanced General Dentistry, Mahidol University, Faculty of
Dentistry, Bangkok, Thailand
2005-present
Assistant Professor, Department of Advanced General Dentistry, Mahidol University,
Faculty of Dentistry,
2011-2012
Vice-chair, Thai Society of Pediatric Dentistry2019-present
Vice-president, Japan Dental Alumni Thailand (JDAT),
2019-present
Chair of Department of Advanced General Dentistry, Mahidol University, Faculty of
Dentistry, Bangkok, Thailand

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OP 11: A follow-up case for 19 years in the maxillary
central incisor with tooth crown fracture by dental trauma
Hirofumi Tsuji
Department of Oral and Maxillofacial Radiology
Kyushu Dental University, Japanemail: mogumogu@trust.ocn.ne.jp

Background: We introduce a follow-up case for 19 years in the maxillary central incisor withtooth crown fracture by dental trauma.
When he was an eleven-year-old boy, a left maxillary central incisor with tooth crown fracture
by dental trauma was injured at school. The dentist had treated to the crown restoration by
resin after a pulp capping for the traumatic tooth.
At 1 week after a treatment of the tooth, the patient visited our dental office. Occlusal andspontaneous pain occurred. I did pulpectomy. At one week later, the canal was filled withlateral pressurized roots with sealer and gutta percha points.
No particular abnormality was observed in the X-ray image without subjective symptoms until
8 years and 4 months after the injury. Although subjective symptoms were not observed at 16
years and 3 months after the injury at all, radiolucent area was detected in root apex at X-ray
examination. The root canal treatment was performed after then. However, two years later,root resection was performed because swelling was observed on the palate side of the apicalpart.
In the case of traumatic teeth, it was suggested that a follow-up examination should be
important for a long period of time even after normal treatment.

Brief CV
Educational Background
1984
DDS, Kyushu Dental University, Japan
1988
PhD, Pediatric Dentistry, Kyushu Dental University, Japan

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OP 12: Consequences of Incompetent Root Canal
Treatment
Ann Patrice Perolino
Southwestern University PHINMA
Urgello St., Cebu City, Philippines

email: aeperolino@swu.edu.phBackground: A root canal fails when a tooth that has been previously treated becomes infected.
If this infection is allowed to continue to develop without proper treatment, it can potentiallyspread to other teeth in the area and cause illness in other parts of the body. Experience andextra training plays a vital role in treatment outcome.

Brief CV
Educational Background1985
Doctor of Dental Medicine, Southwestern University, Philippines
2010
Master of Arts in Teaching Science Major in Special Education, Philippines
Professional Background1994 – 1996
Professor, Centro Escolar University, Philippines
1997 – present Faculty, Southwestern University PHINMA, Philippines
Awards & Memberships
Dean’s List, Master of Arts in Teaching Science Major in Special Education
Member, Philippine Dental Association (PDA)
Member, Endodontic Society of the Philippines (ESP)
Member, Cebu Dental Society (CDS)
Member, Asia Pacific University Grant in Endodontics (Dentsply Sirone)
Member, KOL (Key Opinion Leader) Dentsply Sirone

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Poster Presentations
PP 01

Dr. Masao Irie (Japan)
Highly-viscous glass-ionomer cement for filling: Interfacial Gap-formation inClass I restoration and Mechanical properties

PP 02

Dr. Daisen Soga (Japan)
Clinical response to outpatient dentistry due to trauma

PP 03

Dr. Takeshi Kawai (Japan)
A case of compound odontoma which developed inferior alveolar nerve palsy

PP 04

Dr. Fujio Mizutani (Japan)
Development and effectiveness of high-absorption fine calcium (NANOUNICAL)

PP 05

Dr. Yuriko Suruga (Japan)
Two cases of crown fractures due to trauma

PP 06

Dr. Yuta Inoue (Japan)
Dental treatment for tooth dislocation due to injury

PP 07

Dr. Sho Odawara (Japan)
Clinical response to outpatient dentistry due to trauma

PP 08

Dr. Tadashi Yoshida (Japan)
A Case of the tooth loss due to the severe injury (permanent tooth)

PP 09

Dr. Miyako Noda (Japan)
Injury caused by slipping

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PP 01: Highly-viscous glass-ionomer cement for filling:
Interfacial Gap-formation in Class I restoration andMechanical properties
Masao Irie
Department of Biomaterials, Okayama University
Graduate School of Medicine, Dentistry and Pharmaceutical Sciencese-mail: mirie@md.okayama-u.ac.jp
Objective: One of the major concerns with highly-viscous glass ionomer cements (HV-GICs)
is their ability to achieve effective initial interfacial gap-formation in restorative cavities. Thisin vitro study examined the initial stage (after one-day storage) of interfacial gap-formation inClass I restoration together with determination of associated mechanical properties(compressive strength and flexural strength).
Materials & Methods: Cavity preparation was made in occlusal surface of premolar teeth.
Five HV-GICs were studied (Ketac Universal Aplicap, Ketac Molar Aplicap: 3M, Fuji IX GP,
Fuji IX EXTRA, EQUIA Forte: GC, and two conventional glass-ionomer cements (C-GICs,
Ketac Silver Aplicap: 3M, Fuji II: GC, as controls), with specimen sub-groups (n = 10 / group)for each property measured. After one-day storage and polishing, the restored teeth weresectioned in a mesio-distal direction through the center of the model Class I restorations. The
presence or absence of interfacial-gaps was measured at x 1000 magnification at 14 points(each 0.5-mm apart) along the cavity restoration interface; (n=10; total points measured pergroup=140). Compressive & flexural strengths were measured (n=10/group).
Results: For HV-GICs and C-GICs, significant differences (p<0.05) in gap-incidence wereobserved. In the former case, 4-14 gaps were found. In the latter case, 21-24 gaps wereobserved. The compressive and flexural strengths of HV-GICs significantly increased
compared to C-GICs.
After one-day storage, a HV-GIC performed significantly better than its corresponding a CGIC. Increasing the powder-liquid ratio is the primary reason for improving these results. This
improvement is achieved by a reduction in the size of the glass particle. A number of variations
led to a HV-GIC with improved sealing and mechanical properties.
Conclusion: It is thought that a HV-GIC is the useful and significant restorative material forsome pediatric or geriatric patients.

Brief CV
Educational Background
1976
DDS, Josai Dental University
1976 – 1982
Instructor, Department of Dental Material, Josai Dental University
1981
PhD, Josai Dental University
Professional Background1982 – 2001
Assistant Professor, Department of Dental Materials, Okayama University Dental School.
1984 – 1985
Visiting Researcher, Department of Dental Technology, Royal Dental College Copenhagen2001 – present Assistant Professor, Department of Biomaterials, Okayama University Graduate
School of Medicine, Dentistry and Pharmaceutical Science

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PP 02: Clinical response to outpatient dentistry
due to trauma
Daisen Soga1, Fumio Soga2
1 Soga Dental Clinic

2 Department of Radiology, Kyushu Dental University

email: 4nb3cf@bma.biglobe.ne.jp

Background: Pediatric trauma occurs suddenly and most often make no complaints about pain
and fear of dental care at the visit. Then first of all, you should check if your patient’s
consciousness and brain condition are normal. If there is a suspicion of disturbance of
consciousness, immediately introduce the patient to a doctor. If there is no disturbance of
consciousness, it is necessary to listen exactly to when, where, and how the trauma has
occurred, and to make a diagnosis of the oral cavity by checking that there is no abnormality
in the whole body. For that end, it is necessary to carefully talk, behave, and explain how
treatment will be performed, and remove as much as possible, the patient's anxiety about
treatment.
The clinical response to infant children is changing due to the trend of the times, especiallybecause younger patients are not able to cooperate with treatment for crying just by visiting adental clinic. Further care must be taken in the clinical setting. To solve this situation, create afamily clinic, have a regular visit to a dental clinic from a three-month checkup, and have thechild practice dental treatment using the behavioral change method. It is important for a family
to get used to a dental clinic and prepare for sudden accidents.
Based on the above, I would like to introduce how to deal with trauma at our clinic andexplanations to patients and parents.

Brief CV
Educational Background
2016
DDS, Asahi University School of Dentistry2016 – 2017
Clinical Resident, Kyushu Dental University
Professional Background1982 – 2001
Deputy Director, Soga Dental Clinic
Awards & Memberships
Member, Kitakyushu Children's Oral Health Society
Member, Japan Oral Implant Society
Member, Japan Society for Trauma Dentistry

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PP 03: A case of compound odontoma which developed
inferior alveolar nerve palsy
Takeshi Kawai
Department of Oral and Maxillofacial Surgery,
Kanagawa Rehabilitation Hospital, Kannai-bashamichi Dental Officeemail: kbdental2016@gmail.com

Background: Odontoma is an odontogenic tumor which proliferates in a similar way tohamartoma. It is known that odontoma has unique x-ray image and tissue characteristics. On
the other hand, inferior alveolar nerve palsy primarily occurs from the inferior alveolar blockinjection or from nerve damage during minor surgical intervention of the oral cavity. Therefore,
it is very rare for a nerve palsy caused by the odontoma. Here, we reported a case of thecompound odontoma which developed inferior alveolar nerve palsy. The case was a 27-yearold female who visited a nearby clinic in May 2016 due to paralysis of near the right corner ofthe mouth. Her dental X-ray revealed an impacted lower right 5th teeth and an odontoma-likeradiopaque tumor. She was referred to our department in June 2016. Medical history revealed
that she started experiencing discomfort near the apical area of the lower right first bicuspidfrom January of 2016, and by April 2016, she started experiencing paralysis in the
aforementioned area. Although her face was symmetrical, obtundation from the right corner ofthe mouth to the lower lip was acknowledged. From palpation of the oral cavity, a small bonelike lump was felt at the apical area of the lower right first bicuspid, thought to be the crownof the lower right second bicuspid. We did not find any abnormalities in the surrounding areasof the mucosa. From x-ray, we found lower right second bicuspid impacted in the apical areaof the lower right first bicuspid. We also acknowledged an unclear region, which size wasapproximately 10×10mm in diameter, at right above the mandibular foramen near the lower
right first bicuspid. After diagnosis of the complete impact of the lower right second bicuspid
and the surrounding odontoma she underwent surgical intervention to remove the odontoma
and extract the impacted lower right second bicuspid under local anesthesia with intravenous
sedation on July 12th 2016. Since then, we have closely followed-up the patient on a regularbasis. Histopathological diagnosis was compound odontoma.
Brief CV
Educational Background
2003
DDS, Tokyo Dental College
2017
PhD, Department of Oral Medicine, Oral and Maxillofacial Surgery, Tokyo Dental College
Professional Background2016
Director, Kannai Bashamichi Dental Office2018
Department of Oral and Maxillofacial Surgery, Kanagawa, Rehabilitation HospitalAwards & Memberships
Visiting Implant Lecturer, Indiana University School of Dentistry
Board Certified Trainer and Fellow, Japanese Society for Advanced Implant Medicine
Board Certified Trainer and Member, Japan Association of Dental Traumatology
Board Certified Fellow of the Bio-Integration Society

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PP 04: Development and effectiveness of high-absorption
fine calcium (NANO-UNICAL)
Fujio Mizutani
Universal Calcium Food Co., Ltd.

email: mizutani@unical.co.jp

Background: Universal Calcium Food Co., Ltd. has actively conducted research on calcium
and produced calcium supplements we call “UNICAL” for 25 years. Our UNICAL is uniquewith its high ionization and high absorption rate in the human body. Regarding the mixture toallow UNICAL to be included in many food products, we discovered that we needed a more
micronized form UNICAL. As a result, we started to develop “NANO-UNICAL”. We tried
two methods to develop NANO-UNICAL. At first, we tried a wet grinding method using abead mill. The size of the products was satisfactory. However, we abandoned this method as itproved to be costly and inorganic substances contaminated the calcium.
As a second way, we tested another method to discover if we could control the particle size
safely without any contamination. We tested the production of calcium slurry in various
conditions and made adjustments to determine the optimum particle size. We were able tosuccessfully control the particle size to about 200 nm. Thereafter, we dried the calcium slurrywith a spray dryer and obtained calcium powder. The size of the powder was 10 to 20 μm.
With this production method, we can achieve a calcium powder that has stable dispersibility
and little variation between lots. As a result, we decided to adopt this method.
NANO-UNICAL has 3 key features in addition to UNICAL’s features. First, it does notprecipitate when added to beverages. Second, it doesn’t affect the color or taste of foods anddoesn’t disrupt other food ingredients and has a smooth texture when it’s mixed into food items.
Finally, it isn’t adversely affected by the dietary fiber in the intestinal absorption. We haveacquired two patents for this development in Japan.
We developed various kinds of food products including NANO-UNICAL such as candies,
beverages and so on. We believe these items will help people to take calcium more efficiently.
Currently, we’re conducting further research.

Brief CV
Professional Background2008 – 2010
Department of Industrial Chemistry, Graduate School of Engineering, Tokyo Polytechnic
University
2010 – 2013
Oil stuff Inspectors' Corporation2013 – 2014
AGC Polymer Material Co., Ltd.
2014 – present Universal Calcium Food Co., Ltd.

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PP 05: Two cases of crown fractures due to trauma
Yuriko Suruga 1, Kumiko Nozaka 2
1 Sukoyaka Dental and Pediatric Dental Clinic
Sasamori,Ukai, Takizawa City, Iwate Prefecture, Japan
2 Aoba Dental and Pediatric Dental Clinic 3-19-46
Zenkunen Morioka City, Iwate Prefecture, Japanemail: kuminoza@eos.ocn.ne.jp

Background: We herein report two cases of reattachment of coronally-fractured teeth inchallenging conditions for adhesive bonding.
Case 1: Age at injury: 14 years and nine months
Chief Complaint: Coronal fracture of the left maxillary central incisor
Present condition: The upper lip was significantly swollen with bleeding.
Intraoral findings: A horizontal fracture line that runs across the middle of the left maxillary
central incisor crown and dental pulp exposure were found.
Treatment and follow-up: After cleaning the exposed pulp tissue, calcium hydroxide wasapplied for direct pulp capping, then polycarboxylate cement was applied. After splinting thetooth due to the discoloration of the traumatized tooth, the fractured fragment was removed,and endodontic therapy was conducted. The patient showed up our office after one year andfive months due to the fracture of the same left maxillary central incisor. After the tooth wasrestored with a resin jacket crown, the tooth is presenting satisfactory progress.
Case 2: Age at injury: 8 years
Chief complaint: Subluxation of the bilateral maxillary central incisors and a coronal fractureof the right central incisor
History of present condition: The patient fell from the face to the floor and broke the crownof the toothPresent condition: The left maxillary central incisor was partially erupted, exposing half ofthe crown, and the two-thirds of the right central incisor crown was fractured with a punctiform
pulp exposure.
Treatment and follow-up: Direct pulp capping was conducted on the fractured surface using
calcium hydroxide, and HY-Bond™ Polycarboxylate Cement was applied on the entire surface.
Then, the teeth were splinted. The fragment was placed in saline and stored in a refrigerator.
After about one year and two months, confirming the apex formation was complete, thefragment was bonded to the fractured surface. The tooth was vital.

Brief CV
Professional Background1990 – 2000
Teaching Associate Department of Pediatric Dentistry, School of Dentistry, Iwate Medical
University, Japan
2006 – present Private Dental Office, Sukoyaka Dental and Pediatric Dental Clinic

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PP 06: Dental treatment for tooth dislocation
due to injury
Yuta Inoue 1, Hideto Inoue 2, Yoshihiro Sakamoto 2
1 Berries Clinic, Kita-Kyushu City

2 Inoue Hideto Dental Implant Clinic, Kita-Kyushu City

email: berries@i-h-implant.com

Background: The patient is a 52-year-old male. His four maxillary anterior teeth weredislocated by injury (hit directly on the face by a ball while playing baseball) when he wasabout 30 years old, and since then he was using a conus denture. He visited our clinic on 22thof January in 2002. Requesting implant treatment and to restore the contour of the gingiva toits original shape．According to a panorama radiograph and CT scans，bone defect was
extensive. The treatment plan was to conduct bone grafting in the region with extensive bone
defect, and placing implants after the bone volume has been augmented.
March 27, 2002: The implant was placed at the portion of upper right central and side incisor.
The implant was covered with covering screw after placement, and Bio-oss was applied. Sinceleft maxillary alveolar ridge showed extensive bone resorption in every direction, we removed
a bone graft from the mandibular corpus and fixed it to the maxillary bone by the pins. About
6 months after the operation, the survival of the bone graft was confirmed by clinical andradiological examinations. The pins were removed and one implant was placed into the graftedbone area.
May 17, 2004: The patient received treatment for the preparation of the attachments of screwon type prosthesis and gingival contouring.
February 2019: The prognosis has been favorable without any trouble for about 14 years 9month up to date. The patient is satisfied functionally aesthetically
The combined therapy of bone graft and implant treatments was effective for improvement in
dentition and esthetics for the defect due to trauma.

Brief CV
Educational Background2009
DDS, Matsumoto Dental University, Japan
Professional Background2009 – 2010
Kyushu Dental University Hospital2010 – 2019
Inoue Hideto Dental Implant Clinic

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PP 07: Clinical response to outpatient dentistry
due to trauma
Sho Odawara
Division of Oral and Maxillofacial Surgery, Matsue City Hospital
Matsue, Japanemail: odasho@me.com

Background: Patient is 48 years old and female. I visited our emergency department becauseof a trauma caused by a fall. The patient was admitted to the hospital because of complete
dislocation of the maxillary left central incisor, fracture of the maxillary right central incisor
tooth, bilateral temporomandibular joint fracture, etc.
Since the maxillary bilateral central incisors could not be replanted, the root fractures were
removed under local anesthesia. The dislocated and extracted teeth were stored and processed
into Autogenous tooth bone graft material. Bone was constructed using autogenous tooth bone
graft material, and then she implanted dental implant. Although 5 years have passed since thelast prosthesis finished, the progress is good.

Brief CV
Professional Background2010 – 2012
Medical staff, Department of Dental Materials, Rakuwakai Otowa Hospital
Kyoto Oral Health Center, Kyoto, Japan.
2013 – 2017
Medical staff, Division of Oral and Maxillofacial Surgery, Matsue City Hospital2018 – 2019
Assistant manager, Division of Oral and Maxillofacial Surgery, Matsue City Hospital

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PP 08: A Case of the tooth loss due to the severe
Injury (permanent tooth)Tadashi Yoshida
Yoshida Dental Clinic
Department of Oral Implantology, Kyushu Dental University, Japanemail: ydc@sakai.zaq.ne.jp

Background: Some fractures of the anterior teeth happen due to unexpected contact or
accident. However, it is very rare for 4 maxillary front teeth to fall off, all at once. With good
progress, after following-up for four years and four months, I report the summary.
Case: The patient is male, born in 2002, and 9 years old. He fell down and got a blow on theface in playground equipment at the school at 11:00 AM on February 10, 2012.The teeth whichfell off at once by the injury were four but one of four teeth was lost, so I replanted theremaining three of them.
Convalescence of luxated tooth are key for periodontal cell membrane. This patient came fortreatment after 80 minutes have passed from the time of injury. But fortunately, as for the
progress, it was good because there was no infection of the alveolar bone. Because the patientis a 14-year-old child, I need to wait for a while until 18 years of age that is for the last time
prosthetic measures age.
Examination: Most tooth injuries affect the 4 maxillary front teeth. This goes down due toanatomy properties of the oral cavity. As it projects as hard tissue, it easily receives external
force. To reduce the loss of teeth due to the tooth injury, schools should have stock solutions
for tooth storage and careful observation following the tooth injury.

Brief CV
Educational Background
1993
DDS, Osaka Dental University
2016
PhD, Kyushu Dental University
Professional Background1993 – present Director, Yoshida Dental Clinic, Sakai City, Osaka, Japan.
Awards & Memberships
Authorized Dentist and Instructor, Japan Association of Dental Traumatology
Specialist, Japanese Society of Oral Implantology
Authorized Dentist, International Congress of Oral Implantologists

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PP 09: Injury caused by slipping
Miwako Noda
Noda Dental Clinic
Department of Oral Implantology, Kyusyu Dental University, Japanemail: makodent@tvk.ne.jp

Background: Oral trauma occurring during sports has increased in recent decades, especiallyamong young students in Japan. The number of students interested in football has hiked since
the launch of the Japanese professional football league in 1990s. Since then, the number of oral
injuries has surged among young soccer players. Despite this situation, countermeasuresagainst safety have been delayed. This is a report of a treatment of lip laceration, alveolar bone
fracture and tooth complete dislocation case that occurred due to lack of wearing a mouth guard.
Patient: A16-year-old male, and made first visit on October 1, 2013.
History of the present complaint: While playing football during a club activity, the ball hit
the mouth with LR1.LR2. LL1 alveolar bone fracture and UR1 tooth complete dislocation.
Treatment outcome: Promptly rectified UR2 UR1 UL1, reduced and fixed with dental
adhesive cement using NITI white coated wire. The alveolar bone fracture of the LR2 LR1
LL1 part was invasively fixed. Three days later, root canal treatment was performed. After
three months, the wire was removed as the prognosis was good. Currently, it is still stable after
four years.
Discussion: Other treatment methods were examined, but there was no applicable option. As
a result, the treatment that was applied promoted healed the injury.

Brief CV
Educational Background
1993
DDS, Osaka Dental University, Japan
Professional Background
2004
Vice Director, Noda Dental Clinic, Komatsu City, Ishikawa, Japan
2016
Internship, Kyushu Dental University, Japan
Awards & Memberships
Member, Japan Association of Dental Traumatology
Member, Japanese Society of Oral Implantology
Member, Japanese Society of Oral and Maxillofacial Surgeons40 | P a g e

President of Asian International Association of Dental Traumatology (AADT):
Professor Emeritus Dr. Mitsutaka Kimura
Chair of Organizing Committee in Philippine:
Dr. Omar Rodis
Organizing Committee in Japan:
Dr. Masao Irie, Dr. Takashi Asano, Dr. Norihiro Sonoi