bluuebunny/crossref_metadata_2025 huggingface dataset:
Principles and considerations of orthodontics for Prosthodontic treatment
Authors: Chang Won-Gun
Published: August 2024

Outcome of esthetic ceramic restorations are affected by tooth size, gingival contour, occlusal relationship, etc. For this reason, demand of orthodontic treatment before esthetic ceramic restoration is increasing. If a Bolton ratio discrepancy, a problem of the maxillary incisor's vertical position, a problem of inclination of anterior teeth, a pathogenic occlusion is existed, a pre-prosthodontic orthodontics should be accomplished. These problems can be satisfactory only after the prosthetic treatment is performed after orthodontic treatment. When orthodontic treatment is given, it should be treated with the following principle. 1. Treat it in the direction of functioning occlusion. 2. Keep the patient's stable occlusal scheme. 3. Treat the teeth by considering the average tooth size and Bolton ratio. Ortho-Prostho combined treatment with optimal treatment plan can lead a patient's function, esthetics, and long-term stability.
The Necessity of Establishing a Specialist Program for Geriatric Dentistry for the Elderly of Korea Based on their General Health Status
Authors: Lee Bora , Park Seung Min , Huh Jisun , Hu Kyung-Seok , Seo Jeong-Taeg , Choi Seong-Ho , Jung Il-Young
Published: August 2024

Korea became an aged society as of 2018, and will have plunged into a super-aged society by 2025. For the dental treatment of elderly patients, their general conditions are to be considered to make appropriate treatment plans and strategies, based on advanced knowledge of geriatric dentistry and clinical experience. In this study, the social demand for geriatric dental specialists for the treatment of the elderly of Korea is investigated by looking at their general health conditions, ADL (Activities of Daily Living), and IADL (Instrumental Activities of Daily Living), along with the review of the advanced training programs of geriatric dentistry in other countries.
Mandibular second and third molar protraction with orthodontic mini-implants: case report
Authors: Choi Sung-Kwon , Kang Kyung-Hwa
Published: August 2024

This case report describes the management of a 30-year-old woman with hopeless mandibular first molars and right maxillary second premolar. The treatment plan included mandibular second and third molar protraction after extraction of mandibular first molars. Mini-implants were placed between roots of first and second premolar. Sliding mechanics with lever arm was used to prevent inclination of molars. A good functional occlusion was achieved in 38 months without clinically significant side effects. Most of the extraction space of mandibular first molar was closed by protraction of second and third molars. The skeletal Class II pattern was improved by counterclockwise rotation of mandible through reduction of wedge effect. Mandibular molar protraction with orthodontic mini-implants in adequate cases would be a great alternative to prosthetic implant and reduce the financial and surgical burden of patients.
Surgical extrusion of immature permanent tooth with crown-root fractures: a case report with 36-month follow up
Authors: Jeon Su-jin
Published: August 2024

A 8-year-old patient presented with a crown-root fracture of the maxillary right central incisor with an oblique subgingival fracture line. A multidisciplinary treatment approach including endodontic treatment, surgical extraction and intraalveolar repositioning was used to gain sufficient crown length of the fractured maxillary incisor. The coronally repositioned maxillary right central incisor was stabilized by a resin wire splint. Apexification using MTA was performed. Resin core and direct resin restoration(Cl IV) on fractured teeth was built up. Clinical and radiographic follow-up of the maxillary right central incisor after 36 months showed no signs of root resorption or pathology and acceptable aesthetics and functions were maintained. Surgical extrusion can be considered as a good treatment modality for young patients.
Application of MRI in dentistry: Radiation free image
Authors: Jeon Kug Jin
Published: August 2024

On account of the dentistry mainly deals with hard tissues such as teeth and bones, CBCT and CT are common imaging modality in clinics. Recently, insurance coverage of MRI has been extended to head and neck region. In addition, unlike CBCT or CT, ionizing radiation is not used, the demand for MRI is gradually increasing in dentistry. Even though, many dentists still think that MRI is a difficult diagnostic tool and they are not confident when to use it. Therefore, the objective of this manuscript is to help the dental clinicians to access easily on MRI by introducing the overview, application and precautions of this imaging tool.
Analysis of the dentistry-related contents uploaded on YouTube Korea
Authors: Jo Jaehyun , Kwon Hyuckjun , Jung Seoyeon , Hu Kyung-Seok , Jung Il-Young , Seo Jeong-Taeg
Published: August 2024

Objective: Previous studies suggested the potential influence of YouTube videos regarding dentistry on the mass population. However, there was not any clear investigation for Korean population. We aimed to systemically analyze the type of the dentistry-related videos uploaded on YouTube Korea and the accounts used for uploading, and to assess their effect on the view count of the content. Methods: Classification, type of the accounts, and view count of the videos listed by the keyword 'dentistry' were analyzed, which were uploaded on YouTube Korea platform from September 2017 to April 2019. Kruskal-Wallis test with post hoc analysis was used to assess the effect of the classification of the videos and the type of accounts on the view count. Results: 1.026 videos were enrolled to the analysis. Primary classification of the videos was information/education, advertisement, life, news, child contents, autonomous sensory meridian response, broadcast, cartoon/game, humor, and music. Secondary classification of the videos was dental experience, advertisement, role-playing, information/education., humor, cartoon/game, child contents, life, and broadcast. Type of the accounts was dentistry associates, general public, media company, and government office (sorted by frequency). Subject of the most videos (93.6%) was general public. There was statistically significance in the view count of the videos according to the primary and secondary classifications, the account used for uploading, and target subject of the videos. Conclusion: Dentists and their associates should recognize the importance of YouTube platform and try to monitor and intervene the dentistry-related contents, considering its huge impact on the general public.
Adaptation accuracy and mechanical properties of various denture base resins: a review
Authors: Lee Jung-Hwan , Lee Chung-Jae , Lee Hae-Hyoung
Published: August 2024

This paper reviews the adaptation accuracy and mechanical properties of currently used denture processing systems with base resin materials and introduces the latest research on the development of antimicrobial denture base resins. Poly(methyl methacrylate) has been successfully used as a dental denture base resin material by the compress-molding method and heat polymerization for a long time, but recently, new processing techniques, injection molding-methods or fluid-resin technique are also used for fabricating denture base. However, studies indicated that there was no difference between the injectionmolding and the conventional compression-molding method in terms of adaption accuracy of denture base. The fluid-resin fabrication and one injection-molding systems exhibited better adaptation accuracy than the other processing methods. Resin denture bases in the oral cavity may undergo midline fractures due to flexural fatigue from repeated masticatory loading. For those patients, impact resistant denture base resins are recommended to prevent denture fracture during service. Thermoplastic denture base resins can be helpful for patients suffering from allergic reaction to resin monomers with a soft-fit, however, thermoplastic resins with low stiffness can irritate gum tissues and accelerate abnormal alveolar ridge resorption. Moreover, due to low chemical durability in oral cavity, those should be used for a limited period of time.
A proposal of an assessment method of physiologic oral malodor care prognosis by a case report
Authors: Kim Young-soo , Choi Eun-mi , Hong Hae-kyung
Published: August 2024

Authors have selected a physiological bad breath patient( 62 years old, male ) among the bad breath outpatients who have visited the halitosis control clinic in Korea University Medical Center(KUMC). The patient visited the halitosis control clinic for his oral malodor control, 3 times from April to June in 2018, and in August the patient visited to KUMC malodor control clinic again for his assessment of his two months efforts. Getting the data about the patient's endeavor to get over his physiologic oral malodor and the estimation of the patient's satisfaction level at his oral malodor improvement by a questionnaire method, and the organoleptic level assessment by the dentist, then we could propose an estimation method of the physiologic oral malodor patient care prognosis.
Treatment including orthognathic surgery of a patient with Hypohidrotic ectodermal dysplasia with cleft palate: A Clinical report
Authors: Kim Jwa-Young , Park In-Young , Song Yun-Jung
Published: August 2024

Ectodermal dysplasia is a genetic disorder in which various clinical manifestations involve two or more of the differentiated tissues of the ectoderm. Facial deformity, which is frequently associated with ectodermal dysplasia, appears in the form of cleft lip or cleft palate, especially in the middle facial area.Cleft and tooth defects result in decreased alveolar bone development.This leads to severe skeletal incongruity. Facial features include frontal protrusion, malar bone hypoplasia, flat nose, mandibular prominence and long lower facial height. This clinical report presents treatment including orthognathic surgery of a patient with Hypohidrotic Ectodermal dysplasia with cleft palate.
Ridge augmentation and implant placement on maxillary anterior area with deficient alveolar ridge : case report
Authors: Hong Eun-jin , Goh Mi-Seon , Jung Yang-Hun , Yun Jeong-Ho
Published: August 2024

Atrophic alveolar ridge of maxillary anterior area is commonly observed after the extraction of teeth in patients with severely compromised periodontal disease, causing difficulties with implant placement. Successful esthetics and functional implant rehabilitation rely on sufficient bone volume, adequate bone contours, and ideal implant positioning and angulation. The present case report categorized the ridge augmentation techniques using guided bone regeneration (GBR) on the maxillary anterior site by Seibert classification. Case I patient presented for implant placement in the position of tooth #11. The alveolar ridge was considered a Seibert classification I ridge defect. Simultaneous implant placement and GBR were performed. Eight months after implantation, clinical and radiological examinations were performed. Case III patient presented with discomfort due to mobility of the upper maxillary anterior site. Due to severe destruction of alveolar bone, teeth #11 and #12 were extracted. After three months, the alveolar ridge was considered a Seibert classification III ridge defect. A GBR procedure was performed; implantation was performed 6 months later. Approximately 1-year after implantation, clinical and radiological examinations were performed. During the whole treatment period, healing was uneventful without membrane exposure, severe swelling, or infection in all cases. Radiographic and clinical examinations revealed that atrophic hard tissues and buccal bone contour were restored to the acceptable levels for implant placement and esthetic restoration. In conclusion, severely resorbed alveolar ridge of the maxillary anterior area can be reconstructed with ridge augmentation using the GBR procedure so that dental implants could be successfully placed.
Clinical considerations of CAD/CAM restoration
Authors: Kim Hyun-Jung
Published: August 2024

The rapid evolution of CAD/CAM (Computer Aided Design / Computer Aided Manufacture) led to a dramatic impact on all disciplines of dentistry especially in the fields of prosthodontics and restorative dentistry. This article is to examine the history, advantages & disadvantages and some clinical considerations of CAD/CAM restoration.
The rationale for management of oral appliance in TMD patients
Authors: Lim Hyun-Dae
Published: August 2024

Etiology of temporomandibular disorders is multifactorial origin and complex. therefore, reversible and conservative treatment is recommended in the initial approach of TMD. oral appliances are widely used to manage TMDs, while their mechanisms of action and its effects remain controversial and unclear. The purpose of this paper was to review information regarding the types, designs, and materials of occlusal appliances and the rationale for the continued use of OS for the management of TMDs.
Treatment of Snoring and Obstructive Sleep Apnea with Oral Appliance
Authors: Kim Ji Rak
Published: August 2024

Sleep-disordered breathing (SDB) is defined as a disturbed breathing during sleep caused by repetitive upper airway collapse. Complete collapse causes a cessation of breathing, known as obstructive sleep apnea (OSA) and snoring can arise from partial collapse. Undiagnosed and untreated OSA means recurrent intermittent hypoxemia and leads to a variety of cardiovascular disorders, disturbed neurocognition, and excessive daytime sleepiness. Various behavioral modalities have been suggested for treating snoring and sleep apnea including changing the sleep position, avoiding alcohol, and weight loss. Until now continuous positive airway pressure (CPAP) therapy is one of effective treatment for patients with OSA, but its discomfort causes less tolerance and compliance. Therefore, clinical effectiveness and convenience for oral appliance have emerged and the role of dentists has become more important in the management of OSA.
TAD driven whole dentition distalization with special considerations for incisal/gingival display and occlusal canting
Authors: Paik Cheol-Ho
Published: August 2024

Many orthodontists face difficulties in aligning incisors in an esthetically critical position, because the individual perception of beauty fluctuates with time and trend. Temporary anchorage device (TAD) can aid in attaining this critical incisor position, which determines an attractive smile, the amount of incisor display, and lip contour. Borderline cases can be treated without extraction and the capricious minds of patients can be satisfied with regard to the incisor position through whole dentition distalization using TAD. Mild to moderate bimaxillary protrusion cases can be treated with TAD-driven en masse retraction without premolar extraction. Patients with Angle's Class III malocclusion can be the biggest beneficiaries because both sufficient maxillary incisal display, through intrusion of mandibular incisors, and distalization of the mandibular dentition are successfully achieved. In addition, TAD can be used to correct various other malocclusions, such as canting of the occlusal plane and dental/alveolus asymmetry.
Stability of camouflage treatment using mandibular full arch distalization in Skeletal Class III malocclusion
Authors: Song Ho Jin , Yu Hyung Seog
Published: August 2024

Skeletal Class III malocclusion is a relatively common form of malocclusion in Korea. In borderline cases where only mild skeletal discrepancy exists and if worsening of the facial profile is expected as a result of premolar extraction, mandibular full arch distalization with miniscrews is the treatment of choice. The purpose of this study was to investigate the pattern of tooth movement and evaluate the stability of mandibular full arch distalization and to identify correlation between stability and factors such as initial skeletal pattern, dental changes during treatment and alveolar bone in symphysis region using lateral cephalograms.
Tooth preparation and Intraoral scanning for successful CAD/CAM restorations
Authors: Bae Jin Woo , Son Song Ae
Published: August 2024

In recent years, with the introduction of various restorative materials, restorations using CAD/CAM equipment have been increasing in the esthetic dentistry. The critical steps in the fabrication of indirect restorations with CAD/CAM equipment are proper cavity preparation and making accurate impressions. The process of tooth preparation for CAD/CAM restoration should include a mechanical understanding of milling. In addition, during tooth preparation, the clinician should be familiar with additional equipment and techniques for obtaining the convenience. In order to obtain an accurate oral scan, the clinician should understand the limitations of the oral scan and be skilled at techniques for obtaining a successful image when making oral scans. This article focused clinical guidelines for the preparation of CAD/CAM restorations and introduced clinical methods for making successful impression of oral scans in narrow and deep tooth cavity areas.
Considerations for Pulp therapy in primary teeth
Authors: Ra Ji-young
Published: August 2024

According to the results of the questionnaire survey and the HIRA data released in KAPD conference in 2019, the pulpotomy in primary teeth is gradually decreasing while the one-visit pulpectomy is rapidly increasing. However, these changes seem to be for a more definite prognosis rather than based on academic grounds, and a more accurate diagnosis and conservative approach are needed. In addition, many studies have suggested that MTA pulpotomy was superior to any other materials and which are currently preferred as medicaments for pulpotomy. In the long term period, MTA pulpotomy is expected to be cost effective option.
Pulp treatment for immature permanent teeth
Authors: Song Je Seon
Published: August 2024

For dental pulp treatment of immature permanent teeth, direct pulp capping or partial/cervical pulpotomy (apexogenesis) procedures can be used if the dental pulp is vital. MTA (Mineral Trioxide Aggregate) is regarded as the first choice dressing material for these procedures because its higher success rate. It can be also used successfully for devitalized dental pulp which has been treated by calcium hydroxide. This apexification procedure with MTA has a few advantage such as short treatment period and increase of resistance against root fracture. Recently, regenerative endodontic treatment was introduced for devitalized immature pulp. It can maintain pulp vitality and lead to continuing root development although the dental pulp was devitalized.
Utilization rate of dental implant for elderly in National Health Insurance in Korea
Authors: Ryu Jae-In , Jeon Ji-Eun
Published: August 2024

A dental implant has been covered by National Health Insurance (NHI) in Korea since 2014. Every year the age group covered was extended and the out-of-pocket payment was decreased. This study analyzed the dental implant utilization rate by the National Health Insurance customized DB during the last 5 years. As a result, the utilization rate has been rapidly increasing steeply. The differences by age and sex in the utilization rate of dental implants were explored. The inclusion of a dental implant in the NHI system contributed to improving the dental accessibility of the elderly in Korea. However, a deep discussion is needed whether it is appropriately provided to necessary patients. The utilization rate will increase further in the future. Therefore, continuous monitoring and critical policy review should be continued.
The build angle of 3D printing denture base resin on candida albicans adhesion.
Authors: Park Su-Jung , Song Young-Gyun
Published: August 2024

Purpose: The purpose of this study is to compare the adhesion of Candida albicans according to build angle in 3D printing denture base resin. Methods: The 3D printing was performed by setting the build angle of the disk type specimen designed by CAD program at 0 degree, 30 degrees, 60 degrees, and 90 degrees. Surface roughness was measured using a non-contact 3D microsurface profiler. The specimens were incubated in Candida albicans suspension for 24 hours. The attached Candida albicans were detached by cell scraper. The suspension of detached C. albicans was serially diluted and plated on Trypticase soy broth. After 48 hours of incubation, total colony forming unit was counted. Results: There was no significant difference in surface roughness(Sa) between the test groups, but the interlayer boundary was observed. There was no statistically significant difference in total colony forming units of Candida albicans between the test groups. Conclusion: There was no difference in the average surface roughness and adhesion of Candida albicans between the specimens. It is considered that the setting of the build angle should be set considering the accuracy or strength rather than the roughness of the surface.
Korea National Oral Health Survey Systems and recent oral health status in children
Authors: Choi Youn-Hee
Published: August 2024

This study aimed to introduce what Korea national oral health surveys are and examine recent oral health status in Korean children. Korea Government has implemented national oral health-related surveys during the past two decades. The surveys with oral health examination are Korean Children's National Oral Health Survey (KCNOHS) since 2000 in 5-year-old and 12-year-old children and Korea National Hhealth and Nutrition Examination Survey (KNHANES) since 2007 aged 1 year and more. KCNOHS provides the information about the distribution of prevalence of dental caries, gingival health, behavioral factors, and dental clinic demands etc. KNHANES has huge amount of health data for representative Korean population including oral health and general conditions. Based on KCNOHS, the prevalence of dental caries and its experience has decreased steadily, and the status of oral hygiene and preventive treatment called sealents has been also improved after the year of 2000. However, there is still a gap to reach to those of Western developed countries. Therefore, more effective oral health policy plans and strategies for Korean children and adolescents are needed to prevent and manage for dental caries in private and clinical field of dentistry with public sector.
Prevention of COVID-19 in Dental Hospitals: Literature Review and Countermeasures
Authors: Lee Jungwon , Kim Yeo-Jin , Jung Haueul , Lee Yong-Moo
Published: August 2024

The outbreak of COVID-19, caused by SARS-CoV-2 infection, has spread worldwide and resulted in a pandemic for health systems. The disease is transmitted via respiration as droplets or aerosol. Due to the nature of dental treatment, aerosols, including body fluid, blood, and saliva, are frequently produced in dental hospitals. The present study investigated the potential risk of nosocomial infection of COVID-19 in dental hospitals to provide recommendations in clinical situations. The Seoul National University Dental Hospital in Korea established a countermeasure to cope with the clinical situation based on The Guidelines of Korean Centers for Disease Control & Prevention (KCDC) for dental practitioners and the available literature. Notably, numerous considerations for patient reservation and schedule management are required for space separation in the hospital, including infection control. Experiences in dental hospitals in Korea would be referable for other dental hospitals facing this infectious respiratory disease.
Comparison of microtensile bond strength on non-carious cervical lesions according to biofilm removal method
Authors: Sung Kun-Hwa , Min Jeong-Bum , Park Tae-Young
Published: August 2024

Dentin surface of non-carious lesion is usually attached with oral biofilm. The biofilm should be removed before application of restorative material, because it may reduce the bond strength of adhesive system. The aim of this study was to evaluate the microtensile bond strength, when the biofilm was removed with brush or bur. Twenty extracted human third molars were sectioned horizontally to obtain dentin surface. Specimen were divided randomly into four group. Biofilm formation was performed in three group, except for Group 1 (negative control). Biofilm was removed as follows: Group 3, using ICB brush; Group 4, using lowspeed round bur #2. Group 2 (positive control) was not removed Biofilm. And in all four groups, the adhesive system (Optibond FL, Kerr) was applied to etched dentin surface, and resin composite was built up in three 1mm increments. After 24 hour storage in distilled water, the teeth were perpendicularly sectioned to obtain beams (1 × 1 mm2). Microtensile bond strength was measured and the data were statistically analyzed using one-way ANOVA and Tukey's post hoc test (p<0.05). Group 4 showed the highest microtensile bond strength (p<0.05), Group 3 showed no significant improvements when compared to Group 1. Group 2 showed lowest microtensile bond strength (p<0.05). When restoring a non-carious cervical lesion, it is essential to remove the biofilm present on the dentin surface. In addition, in the method of removing the biofilm, both the brush removal method and the bur removal method were effective.
Diagnosis and treatment concept of sports traumatology in oral & maxillofacial area
Authors: Kwon Kyung-Hwan , Shin Kyung Su
Published: August 2024

There is always a risk of injury in sports. With the recent development of the economy, there have been more opportunities to be exposed to risks, and safety issues to prevent accidents have emerged as a central task. However, intensive research on trauma is lacking in the oral & maxillofacial area associated with sports. It has only been partially introduced, with a comprehensive survey of whole-body trauma or mixed with various trauma in the oral & maxillofacial area. In this paper, the overall content of trauma in the oral & maxillofacial area caused by sports activities will be reviewed for clinicians.
3D Printed customized sports mouthguard
Authors: Ryu Jae Jun , Lee Soo Young
Published: August 2024

The conventional mouthguard fabrication process consists of elastomeric impression taking and followed gypsum model making is now into intraoral scanning and direct mouthguard 3D printing with an additive manufacturing process. Also, dental professionals can get various diagnostic data collection such as facial scans, cone-beam CT, jaw motion tracking, and intraoral scan data to superimpose them for making virtual patient datasets. To print mouthguards, dental CAD software allows dental professionals to design mouthguards with ease. This article shows how to make 3D printed mouthguard step by step.
Dry Mouth and Halitosis Management
Authors: Park Moon-Soo
Published: August 2024

It is obvious that our society is aging and the number of patients with dry mouth will increase in the future. In my opinion, if the dentists working at the local dental clinic pay a little more attention to these patients, they can perform a simple medical history check and the measurement of saliva secretion rate, and may make a clinical diagnosis for dry mouth. Dry mouth patients related to systemic diseases (especially Sjögren's syndrome) and to drug use need to be referred to a physician, and sialogogue for responders and artificial saliva for non-responders should be consid-ered preferentially. We should pay attention to dry mouth-related diseases such as halitosis, and halitosis can be effectively treated by improving oral hygiene including tongue brushing and using gargle solution.Aging cannot be avoided. Now is the time for all dentists to pay attention to the dry mouth that elderly patients may be experiencing.
Estimation and adequacy of dentist supply through the dental care productivity
Authors: Son Se-Ho , Cho Hyun-Jae , Kim Hyun-Duck
Published: August 2024

Running title: Adequacy of dentist supply Objectives: The proper provision of dentists is very important for delivering the dental care that people need. The purpose of this study is to evaluate the adequacy of dentist supply and to predict the proper supply of dentists in Korea for the next 10 years. Methods and materials: Using the data from 2004 to 2017 in the Statictics Korea, the dental needs were measured as days of admission and the annual total dental care hours in 2020, 2023, 2026 and 2030 were predticted using regression analysis. The dental care productivity (average in-office hours) of dentists was analyzed using regression analysis including age, gender, education level and region as a confounder. The annual care hours were predicted according to seven scenarios based on the percentage of women among dentists, post-dentist education levels, the percentage of dentists in the metropolitan area, aging and retirement age. Results: The needed dentist based on the data in the Statictics Korea will be 27, 288 ~ 27, 311 in 2020, 28,104 ~ 28,1785 in 2023, 28,977 ~ 29,124 in 2026, and 30,174 ~ 30,413 in 2030. On the other hand, the number of dentists in Korea will be 26,945 in 2020, 28,813 in 2023, 30,682 in 2026 and 33,173 in 2030. The adequacy index of dentist supply will be -0.01 in 2020 to +0.10 in 2030. Conclusions: Our data showed that dentists will be adequately supplied in Korea for the next 10 years. Overall, the ratio between dentist versus 1,000 Koreans will be increased from 0.5 in 2019 to 0.7 in 2020, which will meet the mean of OECD countries.
Various Genioplasty techniques and case presentations
Authors: Choi Jin Young
Published: August 2024

The form and location of chin is very important factor which determine the facial impression. Genioplasty is getting popular in order to improve the facial impression as facial beauty is considered as improvable factor. Through the geniplasty, chin can be moved to wanted location 3 dimensionally Genioplasty is relative simple but precise diagnosis and accurate surgical technique is very important for accurate and satisfying results. The form and shape of chin itself can be analysized and also must be evalulated in relation to the nose and lip and face. Author introduces the analysis of the chin, various surgical techniques of genioplasty and presents some cases.
Mandibular Angle Reduction
Authors: Oh Ji-Hyeon , Kim Seong-Gon , Park Young-Wook
Published: August 2024

Aesthetic facial profile is mainly determined by cultural background. In some countries, prominent mandibular angle is considered as characteristics, whereas it is considered as unattractive in East Asian countries. Therefore, reduction surgery for prominent mandibular angle is one of the popular cosmetic surgery in theses countries. The anatomical component of the mandibular angle consists of masseter muscle and the angular part of the mandibular ramus. Thus, the mandibular angle reduction can be performed by myotomy or bone reduction or both.
Professionalism and Expert Ethics
Authors: Lee Cheol Gyu
Published: August 2024

This study examines the ethical situations of the dental profession of Korea and the current state of dental ethics education in dental colleges of U.S. to identify the necessity of professionalism and expert ethics. We propose the 'Making Good Dental Clinic Checklist' for improving ethical awareness and behavior, designed by the Good Dental Clinic Group of Dental Service International. This is based on our clinical experiences and our experience of translating Dental Ethics at Chairside into Korean.
Diagnosis and Treatment of TMJ Disc Displacement
Authors: Kwon Jeong-Seung
Published: August 2024

Internal derangement of the temporomandibular joint (TMJ) is condition in which articular disc has become displaced from its normal functional relationship with the mandibular condyle and the articular portion of the temporal bone. Common types of internal derangement include disc displacement with reduction (with or without intermittent locking), and disc displacement without reduction (with or without limited opening) classified according to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). Treatment varies depending on diagnosis. Therefore, differential diagnosis should be made for appropriate treatment.
Esthetics of Zirconia Restorations
Authors: Ahn Jinsoo
Published: August 2024

The esthetic properties of zirconia receive increasing attention as its demand and application escalates. Thus, it is crucial to investigate how zirconia is esthetically different from other dental ceramics. In this study, we evaluated the translucency of zirconia and suggest a method to increase its translucency. We examined the shade of zirconia and offer its distinguishing features. Finally, we analyzed monolithic zirconia restorations to propose esthetic considerations in clinics.
3D printing of Ceramics: Introduction and the Feasibility in Dentistry
Authors: Oh Seunghan
Published: August 2024

In addition to extensive research on polymer and metal three-dimensional (3D) printing, ceramic 3D printing has recently been highlighted in various fields. The biggest advantage of 3D printing has the ability to easily create any complex shape. This review introduces the 3D printing technology of ceramics according to the type of material and deals with the latest related research in the industrial field including the biomedical engineering field. Finally, the future of ceramic 3D printing technology available in dentistry will be discussed.
Color distribution of maxillary primary incisors using a dental spectrophotometer in Korean children
Authors: Song Ji-Soo , Shin Teo Jeon , Hyun Hong-Keun , Kim Young-Jae , Kim Jung-Wook , Jang Ki-Taeg , Lee Sang-Hoon
Published: August 2024

The purpose of this study was to analyze the color distribution of the maxillary primary central and lateral incisors using a dental spectrophotometer. Color measurements of maxillary primary central and lateral incisors of 32 pediatric patients aged 2 to 6 years were performed using SpectroShade Handy Dental Type 713000 (Serial No. HDL2678, MHT, Verona, Italy) by one researcher in the same clinic. CIE L*, a*, b* values of total surfaces and cervical, middle, incisal region were recorded. L* values were higher and a* values were lower in the primary central incisors than those in primary lateral incisors, but b* values didn't show statistical difference. L* values of the middle region were the highest, and a* and b* values decreased from the cervical region to the incisal region. There were significant color differences between each region, and ΔE*ab between each region were greater than ΔE*ab between the primary central and lateral incisors. For esthetic restorations of primary incisors, it is necessary to consider the color differences between each region rather than those between the primary central and lateral incisors.
Treatment of Multiple Horizontal Root Fractures of the Maxillary Anterior: A case report
Authors: Sung Kun-Hwa , Min Jeong-Bum , Park Tae-Young
Published: August 2024

Objectives: Management of a horizontal root fracture of an anterior teeth is challenging and often requires multiple approaches for improving the functional and esthetic outcomes. This case report describes the treatment and 2-yr follow up of 3 maxillary incisors with horizontal root fracture. Two maxillary central incisors were treated with Mineral Trioxide Aggregate (ProRoot MTA, Dentsply, Tulsa, OK, USA). Left maxillary lateral incisors were treated with endodontic treatment and submerged. During 2-yr of follow-up evaluation, the root-fractured teeth of the present patients were well retained in the arch, showing periodontal healing even after endodontic treatment.
Occlusion and articulation in digital dentistry: A review
Authors: Lee Jae-Hyun
Published: August 2024

With the fourth industrial revolution, digitization is accelerating in all healthcare areas. In the field of dentistry, active discussions on digital dental technologies are ongoing, with increasing interest from clinicians daily. Thus far, accuracy and efficiency have primarily been emphasized in digital dentistry, and interest in occlusion has been relatively low. This is because digital dentistry has been predominantly used to restore small numbers of teeth rather than extensive prosthetic reconstruction. However, in the future, most dental treatments will undergo a digital transformation that will require the application of digital technology to more extensive prosthetic rehabilitation, for which discussion of occlusion is essential. In extensive prosthetic reconstruction, occlusion and articulation involve determining the position of the dental arch in relation to the reference plane of the skull or the long axis of the face and the position of the transverse horizontal axis. It also includes determining an occlusal surface with a shape that allows the mandible to move in an eccentric path and masticate most efficiently without any occlusal interference. To better understand how digitization will impact dentistry, this review article summarizes and discusses occlusion and articulation using digital dental technologies. This discussion is divided into several aspects, including facial scan, virtual articulation, augmented reality, and virtual reality.
Considerations for minimizing complications in immediate placement of dental implant
Authors: Park Kwan-Soo
Published: August 2024

Implant treatment has long been established as the main stream for the recovery of lost teeth. Implant therapy, which began to be practiced under the concept of osseointegration, was performed on the completely healed bone, but implant placement immediately after extraction, which began to be introduced in the 1970s, began to become a widely used treatment modality since the 2000s. However, as with all other procedures, immediate implant placement is not omnipotent. If you are obsessed with the obsession that you need to provide quicker implant treatment to the patients, and if you do it as if you are being chased by time, it is the immediate implant placement that can lead to various embarrassing situations. In this article, to reduce complications, the author will look at some issues that need to be considered when placing implants immediately after extraction.
Prosthodontic treatment for cases with poor implant position and orientation
Authors: Noh Kwantae
Published: August 2024

If the implant is planted in the wrong position or direction, it is disadvantageous for stress distribution, and it is easy to cause complications such as screw loosening, abutment fracture, and implant fracture. If the position or orientation of the implant is not good, efforts should be made to minimize the problem through proper implant prosthetic treatment. In this article, the prosthetic method for facilitating future maintenance in cases with poor implant placement or orientation will be presented.
Restoring ecosystems to reduce drought risk: Nature-based Solutions for drought
Authors: Magero C. , Somda J. , Njeru T. , Ruiz V. , Dalton J. , Nino B. , Metternicht G. , Tang T. , Lewis M. , Kahil T.
Published: August 2024

Historically, droughts have caused extensive damage. Effective responses to drought remain a challenge, with reactive and crisis-oriented approaches dominating many interventions. The consequences of drought extend beyond households and rural livelihoods, impacting industrial operations and sectors such as energy, agriculture and water supply. Integrating Nature-based Solutions (NbS) into drought policies requires a comprehensive, context-aware approach. The aim of this publication is to give authorities and stakeholders the knowledge required to integrate NbS into drought management efforts at global, national, and local levels.
Land Reform Policy in Determining Abandoned Land for Halal Tourism Destination Management Based on Fiqh Siyasah
Authors: Jaelani Abdul Kadir , Rabbani Anila , Hayat Muhammad Jihadul
Published: August 2024

The government has established a policy of utilizing abandoned land to develop halal tourism. However, the critical question is whether this policy, based on siyasah fiqh, impacts Indonesia's economic development. The research analyzed land reform policies, which determine abandoned land for managing halal tourism destinations based on Fiqh siyasah. This study employed normative legal studies and secondary data. The research indicated that the use of abandoned land for halal tourism development is not grounded in Islamic jurisprudence, and it potentially violates the provisions of Article 27 paragraph (2) and Article 28D paragraph (1) of the 1945 Constitution of the Republic of Indonesia, leading to violations of human rights.
The Role of Facebook in Raising Health Awareness Among University Students; A Survey Study
Authors:   Department of Media, College of Arts, Salahaddin University, Waesi Kareem Sarkawt , Hamid Saeed Bakhtyar ,   Department of Media, College of Arts, Salahaddin University
Published: August 2024

فەیسبووک سەبارەت بەپرس و بابەته ‌جۆراوجۆره‌کان، ڕۆڵی هەیە لە دروستکردنی کاریگەری لەسەر زۆربەی تاکەکانی کۆمەڵگە، بەتایبەت چینی گەنجان و لە نێویشیاندا قوتابییانی زانکۆ، یه‌کێک له‌و بابه‌تانه ‌پرسی هۆشیارکردنەوەیە، کە كاردانەوەی لەنێو تۆڕە کۆمەڵایەتییەکاندا بەتایبەت لەلایەن قوتابییانەوه چ بەشێوەی ئەرێنی یان نەرێنی لێدەکەوێتەوە، بۆيه لەم گۆشه‌نیگایه‌وه‌ توێژەران لەم توێژینه‌وه‌یه‌دا بەشێوه‌یه‌کی زانستی هه‌وڵیانداوه ئه‌وه‌ ڕوونبكنە‌وه، کە تاچه‌ند تۆڕه‌‌‌‌ کۆمه‌ڵایەتييه‌كان ڕای گشتییان له‌سه‌ر دروستدەبێت سه‌بارەت به ‌پرۆسه‌ى هۆشیاری ته‌ندروستی. ئامانجی سه‌ره‌کی ئه‌م تویژینه‌وەیه ده‌رخستنی ڕۆڵی فەیسبووکە لە بەرزکردنەوەی ئاستی هۆشیاری تەندروستی قوتابییانی زانکۆ، كۆمه‌ڵگه‌ی توێژینه‌وه‌كه‌ بریتییه‌ له‌ قوتابییانی زانکۆ، مشتی توێژینه‌وه‌كه‌ش قوتابییانی زانکۆی سەڵاحه‌دینە له‌شاری هه‌ولێر، کە(300)، فۆرمی ڕاپرسی به‌شێوه‌ی هه‌ڕه‌مه‌كی چینی دابەشکراوەو له‌م توێژینه‌وه‌یه‌دا كه‌ر‌ەسته‌ی ئاماری، كه ‌به‌سیسته‌می "SPSS "ناسراوه‌ به‌كارهاتووه‌. توێژینه‌وه‌كه‌ له‌ جۆری وه‌سفییه، له‌لایەنە پراکتیکییەکەی بۆ به‌ده‌ستهێنانی داتاو زانیاریی وردو پێویست و گەیشتن به‌كۆمەڵێك ئەنجام، توێژەران ڕێبازی(ڕووپێوی)یان بەكارهێناوه‌. توێژینەوەكە بەچەند ئەنجامێكی زانستیی گەیشتووە، لەوانە‌ به‌ پله‌ی یه‌كه‌م مشتی توێژینه‌وه‌ له‌گه‌ڵ ئه‌وه‌ن، کە فەیسبووک هۆکارێکە بۆ بەرزکردنەوەی ئاستی هۆشیاری تەندروستی قوتابییانی زانکۆی سەڵاحه‌دین، له‌م ڕوانگه‌یه‌وه‌ ئه‌نجامه‌كانی ئه‌م توێژینه‌وه‌یه‌ گرنگە بۆ زانینی ئه‌و ڕۆڵه‌ی، کە فەیسبووک ده‌یگێڕێت له‌بەرزکردنەوەی ئاستی هۆشیاری تەندروستی قوتابییانی زانکۆ.
ANALYSIS OF CONFLICTS IN THE MEDICAL INDUSTRY: TODAY'S RELEVANCE
Authors: Biduchak A.S. , Gorachuk V.V. , Al Salama Muhamed Vasek Obeid , Myroniuk M.B. , Chornenka Zh.A.
Published: August 2024

Given the extreme importance of medical care for public health, resolving conflict situations in medical institutions becomes an urgent need. An important component of the conflict management strategy in the medical field is not only the resolution of conflicts that have already arisen but also their anticipation and prevention. To achieve this goal, it is necessary to implement a system for early detection of conflicts, improve the communication skills of medical staff, as well as improve the system of personnel management and allocation of resources in medical institutions.The purpose of the research is to study the opinion of the heads of health care institutions of the Chernivtsi region regarding the frequency of conflicts in medical teams and the participation of the head in a conflict situation.Material and methods. With the use of statistical and medical-epidemiological methods, an analysis of anonymous questionnaires of 48 medical managers and 1146 patients was carried out in order to study the correlation relationship (Kramer coefficient) of conflict situations with the efficiency of the work of health care institutions.Results and discussion. It was established that conflicts periodically arise among medical workers, according to 47.2% - 60.6% of respondents of all age categories, and very often - according to 15.2% of people aged 36-55, 17.7% of responses of people 18- 35 years old and 22.85 people aged 56 years and older. Persons aged 36-55 years and 56 years and older take the most active part in the conflict (52.8-58.3% of responses), while persons aged 18-35 years are quite often passive observers (37.5%) and do not participate in conflicts (25.0%).The obtained results confirmed the need to develop and implement scientifically based preventive methods in order to improve the organization of the process of prevention and management of medical conflicts at the regional level, and their further implementation in the work of medical institutions.Conclusions. Therefore, in today's world, where attitudes towards medical care and demands for it are constantly growing, conflict resolution in medical institutions is an urgent need. The urgency of the problem of conflicts in the medical field must be understood and appropriate attention and resources must be given to it to ensure the effective functioning of medical institutions and high quality of medical care.
SUCCESSFUL TREATMENT OF METASTATIC LUNG ADENOCARCINOMA WITH LAZERTINIB: A CASE REPORT
Authors: Vynnychenko O.I. , Kovchun V.Yu.
Published: August 2024

Lung cancer is one of the most common social diseases affecting the quality and length of life. A feature of lung cancer is the high frequency of genetic mutations. EGFR mutation is the most common among them. The prognosis for patients, especially with advanced stages, remains unfavorable since this type of tumor is resistant to chemotherapy. Tyrosine kinase inhibitors (TKIs) are considered the promising direction of targeted therapy. Gefitinib, afatinib, and erlotinib are TKIs widely used to treat patients. However, the significant problem remains the acquired resistance, which is most often associated with the additional mutation T790M. Lazertinib is a new and most promising third-generation EGFR-TKI.The study aimed to investigate the indications for lazertinib and to report the results of the successful treatment of a patient with metastatic lung adenocarcinoma with a follow-up period of 35 months.Case report and discussion. Lazertinib is used to treat patients with single (L858R, Ex19del, or T790M) or combined mutations (L858R and T790M, Ex19del and T790). This drug is effective for the first, second, and third lines of therapy, as it can block the T790M mutation, penetrate the blood-brain barrier, and counteract the emergence of acquired resistance. Lazertinib is used as monotherapy, but treatment effectiveness increases if combined with chemotherapy and/or amivantamab (a bispecific antibody against EGFR and MET). Our case report demonstrates that progression-free survival in patients receiving lazertinib can be very high. In patients taking tyrosine kinase inhibitors of the first generation, disease progression occurs after about 12 months. In our case, the patient has no progression within 35 months of treatment. Skin dryness and grade 1 thrombocytopenia have been reported as side effects. The high efficiency of lazertinib in the presented case report can be explained by the presence of the most sensitive to EGFR-TKI mutation - Ex19del, and the absence of uncommon mutations such as Ex20ins, G719X, L861Q, S768I, and T790M.Conclusions. Lazertinib is a highly effective EGFR-TKI with a low toxicity profile that may significantly improve the treatment outcomes of EGFR-mutated patients.