bluuebunny/crossref_metadata_2025 huggingface dataset:
Executive Strategies for CPD Program Enhancement of Korean Dentist
Authors: Kim Yeo-Gab
Published: August 2024

We had our share of success in the dental industry in 2009, but we also had our bits of problems. I regret that our still unsolved bits of problems were some of the more important issues in dentistry. We have tried our best with passion, but we faced many limitations. I hope in expectation, that we analyze these problems so that we may overcome them. I hope that the Korean Dental Association be equipped with valid evidence in decision making procedures corresponding to social justice, heighten our dentists pride by respecting the law and fulfill our duty as national oral health caretakers. The Korean Dental Association claims the goal as AEYour Dentist, World Best, World Best Dentist with the people°phi and the association should establish related policies and should be able to execute them. Also the association should be able to manage and execute the duties presented in the association regulations, thus, the importance of duty division according to profession must be emphasized.
Considerations in dental management and medication for the medically compromised patients
Authors: Nam Jeong-Hun
Published: August 2024

Current trend of aging society suggests that many patients are at risk for various preoperative preparations and postoperative complications during and following invasive dental procedures, due to an acquired medically compromised conditions from systemic disease and/or from medications. The medical history is critical for the identification of patients potentially at risk for medically compromised and old aged patients' factors from dental treatment. The proper dental management requires an understanding of certain principles of pathophysiology for these medical conditions and some standard laboratory tests. Polypharmacy in old age, besides representing a risk in and of itself, points to the potential risk the underlying diseases that necessitated the drugs can present in the dental office. These diseases and medications can also present a risk to oral health. A sequence for categorizing drugs in a medication list is presented here to aid in the identification of potential risks in the dental treatment and management of patients with complex medical histories and drug regimens. Specific patient populations, such as pediatric, may have specific drugs or additional criteria that need to be considered. Practitioners must use the health history and the medication list in concert, using one to make sense of the other and utilizing all the information available from reviewing each one carefully in order to manage their increasingly complex patients safely and effectively.
The Myths and Facts of MTA
Authors: Ko Hyun-Jung
Published: August 2024

Since MTA has many beneficial properties such as biocompatibility, great sealing capacity, antibacterial effects, low cytotoxicity, and stimulation of formation of mineralized tissue, it has been widely used as the material of choice in root-end filling, apexification, pulpotomy, perforation repair and so on. However, despite its favorable characteristics, MTA presents working properties which are less than ideal. The resulting cement from the mixing of powder and water is difficult to manipulate, and its setting time has been reported to be 2 h 45 min whereas the working time is <4 minutes. Additional moisture is also required to activate the setting of the cement. Moreover, according to recent studies, the physical properties of MT A may be hampered by acidic environment or blood contamination. Therefore, practitioners may have surprisingly worse results than they expected when they are not fully acquainted with the characteristics and manipulation method of MTA.
Berlin standard activator in the treatment of growing patients with mandibular deficiency: Case report
Authors: Lee Seung-Youp
Published: August 2024

Activator is a removable functional appliance used for correcting the skeletal Class II malocclusion in children with the mandibular deficiency. Berlin standard activator modified from Andresen activator has following characters; do not cover the palatal surface for tongue space, relief on lingual surface of mandibular incisors and resin capping 1/3-1/2 of crown height on mandibular incisors for preventing labioversion of mandibular incisors, L-hook between maxillary lateral incisor and canine for anterior high pull headgear, relief on mandibular posterior bite block for differential eruption of posterior teeth. Two cases presented here had a mandibular deficiency and slight maxillary protrusion. First case (an 11-year-old girl) treated with Berlin standard activator and anterior high pull headgear for 13 months followed by fixed orthodontic appliance for another 29 months. Second case (a 12-year-old boy) treated with Berlin standard activator for 6 months followed by fixed appliance for another 24 months. Treatment results showed a significant improvement in sagittal skeletal and occlusal relationship without premolar extraction. Mandibular condyles were concentric in TMJ [ossa, and masticatory muscle activities were normalized after treatment. In the retention period facial harmony and occlusal stability was maintained.
Comparison of the effectiveness of essential oil mouthrinse and interdental brush in patients with fixed orthodontic appliances
Authors: Hong Sook-Chan , Kang Sung-Taek , Shin Joo-Hee , Lim Yong-Kyu , Lee Dong-Yul
Published: August 2024

The objective of this study was to compare the effectiveness of essential oil mouthrinse and interdental brush for oral hygiene in orthodontic patient. 90 patients, with fixed orthodontic appliances, were divided into 3 groups(Group 1: patients who had only used toothbrush, group 2: toothbrush + essential oil mouthrinse, group 3: toothbrush + interdental brush). Then, plaque index(PI) and gingival index(GI) were evaluated at before(T0), 3 weeks after(Tl) and 6 weeks after(T2) the experiment. The present study revealed the following conclusions: (1) There was statistically significant decrease in PI and GI of groups 2 and 3 comparing to those of group 1 during 6 weeks.(p<0.05) (2) There was no significant difference in the level of decrease in PI and GI between group 2 and group 3.(p<0.05) The present study thus implied that use of mechanical or chemical aid such as interdental brush and mouth rinse in addition to toothbrushing may help maintaining oral hygiene in patients undergoing fixed orthodontic treatment for prolonged duration.
Caries Control for infants based on Health Plan 2010 in Korea
Authors: Han Dong-Hun
Published: August 2024

We examined progress in oral health of Korean 5 year olds children and dental public health infrastructure since the National Health Promotion Plan 2010 Oral Health Objectives were issued. We summarize trends in the prevalence of dental caries and trends in national public oral health program activities and budget. The Oral Health Objectives were achieved in 2006. Oral health in Korean preschool children improved considerably by improving of lifestyle and consumption of fluoride containing toothpaste. Although the number of public oral health center and the budget of oral health education were increased, the impact of public oral health program for preschool children was not influential. New oral health program for infants such as fluoride varnish application and strengthening of existing public oral health program should be performed for continuing improvement of oral health in Korea.
The significance of soft tissue for maintenance of prosthesis
Authors: Kim Ok-Su
Published: August 2024

All prosthetic and restorative therapies require a healthy periodontium as a prerequisite for success. Understanding of the concepts of periodontal-restrorative interaction, especially with regard to interactions at the gingival margin is important. The aim of this article gives the information about the essential considering factor for successful prosthesis; biologic width, periodontal biotype, width of attached gingiva, margin of restoration. If a restorative margin must be extended below the gingival margin, it is critical that adequate band of attached gingiva is present, the margin does not violate the biologic width, the margin is closed and properly finished.
Communication of dentists with geriatric dental patients
Authors: Kang Myoung-Sheen
Published: August 2024

Dentist-patient communication has long been recognized as an important part of dental care. It has many positive outcomes, including reducing patient dental anxiety and increasing patient satisfaction and patient compliance. Above all, the need to communicate through conversation with dentist must be perceived as a basic dental patient's need for good clinical outcomes. In the future, increasing geriatric dental patients will pose challenges to dental profession. Factors influencing dentist-geriatric patient communication should be researched and relevant techniques should be shared among dentists.
A New Orthodontic Appliance for Rapid Anterior Alignment in Adults; Mini-Tube Appliance (MTA)
Authors: Hwang Hyeon-Shik , Jeon Hyun-Ran , Kim Seok-Pil , Kim Wang-Sik , Lee Gye-Hyeong
Published: August 2024

With an increase of public's perception on "minimally invasive dentistry", more patients are demanding orthodontic alignment of anterior teeth rather than restorative treatment which is more invasive. One draw back of orthodontic alignment has been that it takes long time. To overcome this limitation, a new orthodontic device named Mini-Tube Appliance (MTA), have been developed. With the combined use of light NiTi wire and inter-proximal stripping, rapid anterior alignment can be obtained efficiently. This article presents the use of MTA for rapid alignment of anterior teeth and its clinical guidelines with typical case samples.
Fabrication of custom abutment using dental CAD/CAM system
Authors: Kim Hyeong-Seob
Published: August 2024

CAD/CAM systems (computer-aided design / computer-aided manufacturing) used for decades in restorative dentistry have its application to implant dentistry. This study aimed to overview CAD/CAM systems used implant dentistry, especially emphasizing custom implant abutments manufacturing. CAD/CAM custom abutments present the advantages of being specific to each patient and providing a better fit than the stock and cast custom abutments. This cutting edge technology of virtual-designed and computer-milled implant abutments will likely replace traditional implant restorative protocols and become the standard for implant dentistry in the foreseeable future.
Restoration after endodontic treatment with Endocrown
Authors: Park Jeong-Kil
Published: August 2024

Successful treatment of a badly broken down tooth with pulpal disease depends not only on good endodontic therapy, but also on good prosthetic reconstruction of the tooth after endodontic therapy is completed. The ideal treatment of endodontically treated teeth has been widely and controversially discussed. Endocrown is a restorative option for endodontically treated teeth. Endocrown design incorporates the core and short post into the crown as a single restoration. The preparation of endocrown consists of a circular equigingival butt-joint margin and central retention cavity of the entire pulp chamber instead of employing intraradicular posts. This design significantly increases the surface area of the preparation available for cementation. It is particularly useful in young patient teeth for long-term provisional restoration and in teeth with short clinical crowns. This technique represents a promising and conservative method for the treatment of endodontically treated teeth that require long-term protection and stability. Endocrown can be considered as a feasible alternative to full crowns or composite overlays for the restoration of non vital teeth.
Esthetics of Dental Materials
Authors: Ahn Jin-Soo
Published: August 2024

Esthetic aspect is one of the most important factors in clinical dentistry. Esthetics of dental restorative materials consist of translucency, surface texture, and most importantly 'colour'. Main characteristics of optical properties and its clinical representation and general outlook as to the current information on colour and its representation has been considered in this study. Characteristics of esthetic materials are concerned with the field of science and dental professionals should take into consideration the importance, characteristics, and applications to actual clinical settings of esthetic restorative materials. Relevant information regarding natural teeth and esthetic restorative materials and training will lead to the heightened ability of dental professionals.
Biomechanical adaptation of orthodontic tooth movement
Authors: Lee Syng-Ill
Published: August 2024

Orthodontic tooth movement is a unique process which tooth, solid material is moving into hard tissue, bone. Orthodontic force in general provides the strain to the PDL and alveolar bone, which in turn generates the interstitial fluid flow(in detail, fluid flow in PDL and canaliculi). As a results of matrix strain, periodontal ligament cells and bone cells are deformed, releasing variety of cytokines, chemokines, and growth factors. These molecules lead to the orthodontic tooth movement(OTM). In these inflammation and tissue remodeling sites, all of the cells could closely communicate with one another, flowing the information for tissue remodeling. To accelerate the rate of OTM in future, local injection of single growth factor(GF) or a combination of multiple GFs in the periodontal tissues might intervene to stimulate the rate of OTM. Corticotomy is effective and safe to accelerate OTM.
Relationship between oral health status and socioeconomic status of elderly in Korea -based on 2010~2011 Korea National Health and Nutrition Examination survey data-
Authors: Choi Yong-Keum , Han Sun-Young , Kim Cheoul-Sin
Published: August 2024

The insurance payment plan for dental implants in Korea has been criticized because the payment priority has not been properly established, and the benefits are concentrated among middle-class citizens. In the current study, the relationship between the oral health condition and socioeconomic status of the elderly was analyzed using data from the Korea National Health and Nutrition Examination Survey (KNHANES). This study aims to determine the reason underlying the criticism of the insurance payment plan. The subjects were >65-year-old individuals in the 2010 and 2011 database of KNHANES. Data from 2,812 subjects were analyzed. The socioeconomic status was determined based on edentulousness, molar tooth loss, and presence of 28 teeth. According to the analysis, the average income was 1,560,000 won for edentulous elderly, 1,811,000 won for elderly who had lost molar teeth, and 1,896,000 won for elderly with 28 teeth (p<0.05). In addition, elderly with a low education level demonstrated a poor oral health condition (p<0.001). In conclusion, the insurance plan currently under examination is not properly designed for economically impoverished elderly because the plan only covers 50% of the costs and is limited to implantation of molar teeth only. This plan will not provide practical benefits to elderly with a poor socioeconomic status; therefore, the insurance payment plan needs to be improved so that the appropriate beneficiaries can be targeted.
Surgical treatment of maxillary transverse deficiency
Authors: Kwon Yong-Dae , Lee Hyun-Woo
Published: August 2024

Among the occlusal discrepancies, maxillary transverse deficiency is quite common in several reasons. The reasons are comprised of maxillary hypoplasia, thumb sucking habits, non-syndromic palatal synostosis and syndromal patients including cleft patients. Orthodontic treatment is used routinely to correct a deficiency in young patients while it has limitations for a skeletally mature patient. Surgical treatments help provide effective maxillary expansion to correct a deficiency in adults. Surgical methods can be categorized to segmental Le Fort I osteotomy and surgically assisted rapid maxillary expansion(SARME). Both methods seem successful but each method would have its own indication. We give a review on transverse maxillary deficiency and two surgical methods.
Development of oral brush and maintaining of oral hygiene
Authors: Park Joon Bong
Published: August 2024

The purpose of this article is reviewed the historical background and development of oral care devices in the ancient civilization. Through an evolutional process of oral care devices, the prevalence of periodontal diseases and dental caries has revealed decreasing tendency. Because of the changing the role of the toothbrush, the name of brush should be alter from toothbrush to oral brush. Recent we can apply toothbrush to tongue cleaner to diminish the oral breathe odor. Selection of the toothbrush for fittable for each and every person is the one of important point to maintain the oral hygiene. including check-up the oral hygiene status after toothbrush with disclosing solution. This review of literature suggest that the most important way to maintain the oral health shoul be included the selection of proper toothbrush for each person and confirmation of result of toothbrush in oral cavity after had learned tooth brush instruction from professional person.
Behavior patterns of patients with oral mucosal disease
Authors: Ok Soo-Min , Kim Kyung-Hee , Jeon Hye-Mi , Heo Jun-Young , Ahn Yong-Woo , Jeong Sung-Hee
Published: August 2024

There are many causes of oral mucosal diseases, so accordingly, there are various treatments available. The most commonly used agents include adrenocortical hormones, antifungals, antivirals, antibacterials, and immunosuppressants. However, it must also be noted that improving oral hygiene and nutrition, and reducing stress are effective in symptom relief. Furthermore, patients with existing diseases of the oral mucosa should avoid behavior that may cause an increase in pain. Unfortunately, many patients are unaware of the activities that may lead to increased pain and therefore do not avoid these activities. The aim of this study was to investigate and analyze the behavior of patients with oral mucosal disease with regard to activities that led to increase pain. This cross-sectional study was performed on a sample of patients with oral mucosal disease selected from the Oral Medicine Clinic of the Pusan National Hospital during March to August 2013. These patients were randomly selected. From a total of 479 patients, 116 patients with mucosal disease were selected and 73 fully completed questionnaires were included in the analysis. Data were collected by using self-completed questionnaires. The results were as follows: Mean score of Question 13 (Not smoking) is 2.47pm1.11. Mean score of Question 11 (Not drinking alcohol or not using mouthwash containing alcohol) is 2.22pm1.15. The other questions resulted in scores lower than 1.5. The answers to the questions were scored according to the following assigned numerical values: not keeping = score of 0; little keeping = score of 1; often keeping = score of 2; always keeping = score of 3. In conclusion, patients with oral mucosal diseases unknowingly engage in activities that result in an increase in pain. Therefore, they need to be educated about how to behave to protect oral mucosal lesion.
Dental utilization and expenditures in Korea Health Panel Survey, 2008-2011
Authors: Jung Se-Hwan
Published: August 2024

Korea Health Panel Survey (KHPS) has been conducted to provide nationally representative estimates of health care use and expenditures for non-institutionalized population in Korea since 2008. The aim of this study was to present estimates from KHPS on dental utilization and expenditures from 2008 to 2011. While weighted estimates were presented for each year from 2008 to 2011, the focus of this study was on the 2011 estimates and changes in dental utilization and expenditures between 2008 and 2011. Weighted estimates were obtained using population weights and statistical significances were analysed by independent t-test or ANOVA test using SPSS version 20 for Windows. In 2011, 21.1% of Korean population obtained outpatient dental services from dentists. From 2008 to 2011, the percent of people with a dental visit in each year increased slightly. In 2011, the mean number of dental visits was 4.46. While the mean number of dental visits remained stable by 2010, it increased slightly in 2011. The total annual dental expense in 2011 for people with a visit was about 460,000 Korean Won and 10% higher in 2008. In summary, this study results highlight low rates of dental utilization and high dental expenses in Korean population.
The factors caused errors in the production process of CAD/CAM prosthesis based on experience
Authors: Huh Jung-Bo , Shim June-Sung
Published: August 2024

In recent years, precision machining of the dental prosthesis by computer assisted system is becoming pervasive in clinical dentistry. Prosthesis fabricating system that is designed by computer software and made by computer devices is called as a CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing) system. By the use of dental CAD/CAM system, the improvement of marginal compatibility and mechanical properties in prosthesis can be obtained more effectively, an aesthetic quality by using new materials such as zirconia can be increased. Also, the restoration process can be simple and efficient, the production time can be shortened, the process of manufacture can be standardized, and the mass production is possible. What is clear is that these benefits are theoretically possible, but the dentist or dental technician must understand the CAD/CAM basic principles and limitations for obtaining the maximum advantages of CAD/CAM system. For this reason, this article will be presented about the basic principles of CAD/CAM system and the factors of error that might occur in the CAD/CAM process based on my empirical study.
Meta-analysis in dental research
Authors: Lim Hoi-Jeong
Published: August 2024

Recently, importance of meta-analysis is increasing in the field of dentistry, since it is not easy to settle controversies arising from conflicting studies. Meta-analysis is the statistical method of combining results from two or more individual studies that have been done on the same topic. Merits of meta-analysis include an increase in power, an improvement in precision, and the ability to address solution not provided by individual studies. However, it might mislead researchers when variation across studies and publication bias are not carefully taken into consideration. The purpose of this study is to help understand meta-analysis by making use of individual results in dental research paper.
Oral health status of institutionalized elderly in Korea
Authors: Han Dong-Hun , Kim Nam-Hee , Ko Seok-Min , Kwak Jeong-Min , So Jong-Seop , Lee Seong-Keun , Lim Soon-Ryun , Hwang Ji-Young , Lee Hye-Ju , Choi Ho-Joon , Paek Ji-Hyun , Kim Yeon-Ju
Published: August 2024

Purpose: The institutionalized elderly have placed the most vulnerable state, and the report about the oral health status of the institutionalized elderly was scarce. The aims of the current study were to investigate the oral health status of institutionalized elderly. Materials and methods: The survey of the oral health status was carried out on 487 institutionalized elderly from 4 longterm care facilities of Seoul metropolitan city, Gyunggi province, and Gangwon province in Korea. Results: The prevalence of dental caries, root caries, and dental calculus of the institutionalized elderly was 19.2%, 15.3%, and 23.7%, respectively. The percentage of edentulism among the institutionalized elderly was 26.2%. Those who had poor oral hygiene and tongue coating were 43.9% and 90.5%, respectively. The percentages wearing complete and removable partial denture on maxilla were 12.8% and 3.3%, respectively. The percentages wearing complete and removable partial denture on mandible were 7.8% and 5.6%, respectively. The percentages of institutionalized elderly needing complete and removable partial denture on maxilla were 29.7% and 27.2%, respectively. The percentages of institutionalized elderly needing complete and removable partial denture on mandible were 24.5% and 30.9%, respectively. Conclusion: The oral health stuatus of institutionalized elderly was poor. For the oral health promotion of elderly in longterm care facilities, it is essential to educate nurses and caregivers about the importance of the oral health and oral hygiene method.
Current status and prospects of oral health services exchange from South and North Korea through nongovernmental organizations
Authors: Han Dong-Hun , Shin Teo-Jeon , Myoung Hoon , Lee Seung-pyo , Kim Chong-Chul
Published: August 2024

South Korea's oral health care non-governmental organizations (NGOs) have played a crucial role in South-North relations, although a formal intergovernmental relationship is difficult to establish and also easily breaks down. Humanitarian assistance by NGOs in the oral health care sector is an area that receives wide support from South Korean society for its urgency and for its appeal to humanity. This humanitarian assistance started in the late 1990's and continued to grow until the late 2000's. This assistance continued throughout the tension between the two administrations that resulted in a radical decrease in overall assistance from South Korea to North Korea. However, concerns remain about the transparency and efficiency of NGO activities. In this article, the NGOs and their major activities are delineated, and South Korean legislation is examined. A current act, the Law on the Development of South and North Korean Relations serves as a basis for governmental regulation and support of NGO's. Humanitarian assistance in the oral healthcare area is directly related to the oral health of the North Korean people, and it should not be influenced by political changes. Long-term planning and close discussions between NGOs, their North Korean counterparts, and the South Korean government are needed. NGOs need to overcome their shortcomings such as a lack of expertise and shortage of financial support. For this, NGOs must improve their administration transparency and professionalism.
Patients' perception on the use of rubber dam for dental treatment
Authors: Yum Jiwan , Kwak Sang Won , Lee Hyojin , Kim Hyeon-Cheol
Published: August 2024

A questionnaire-based survey was done to evaluate the patients' perception on the use of Rubber Dam (RD) for the tooth isolation during dental treatment. Total 106 questionnaire were gathered and the data were analyzed according to the patients' gender, age, previous experience of RD. The 96% of total patients reported no experience of RD in their previous treatment. The first advantage of RD was selected as the protection of irrigant and medication into the oral cavity and the disadvantage was selected as saliva gathering during treatment. 98% of patients want to use RD for the next treatment and 99% remarked that the RD is essential for the dental treatment. Based on the surveyed data, majority of the patients highly satisfied with the RD use and they want to use RD and may consider the use of RD for the selection of dental clinic.
Resin cement bond to tooth
Authors: Lee Jung-Hwan
Published: August 2024

This paper reflects on the state of the art of two kinds of tooth hard tissue (enamel and dentin) bonding with resin cement. After presenting composition of resin cement, concepts of enamel bonding and resin bonding are addressed. Special attention is devoted to the concept and advantage of self-etching technique. Finally, recommended clinical performance regarding bonding to tooth with resin cement is summarized.
A study on simplified procedure of enhanced designed implant drill
Authors: Yoon Ji-Hoon , Jeon Gye Rok , Yun Mi-Jung , Huh Jung-Bo , Jeong Chang Mo
Published: August 2024

Purpose : The objective of this research was to develop a more simplified drilling procedure with an enhanced implant drill. Materials and Methods : The drill enhanced design factors enabled implantation of Dia. 5.0mm fixture with only 2 times drilling which is more simplified drilling procedure. The enhanced drill was designed with 2 flutes, 2-phase or 3-phase formed drill tip and 25 degrees of helix angle. The proposed drilling procedure (2 times) was compared with a general drilling process (4 times) in terms of temperature changes, cutting time and ISQ value. Results : The simplified drilling procedure indicated less heat than a conventional drilling procedure (p<0.05). The enhanced drill showed significantly shorter drilling time than a conventional drill (p<0.05). On the other hand, higher insertion torque and ISQ value were observed on the the suggested drilling procedure than the conventional drilling procedure (p<0.05). Conclusion : A simplified drilling procedure with the newly designed drill could provide higher effectiveness and safety of dental implant operations under properly controlled external conditions, such as irrigation and RPM of drilling.
Le Fort I maxillary osteotomy for cleft lip and palate patients
Authors: Shin Young-Min , KWON Tae-Geon
Published: August 2024

In cleft lip and palate (CLP) patients, there are various degree of residual maxillofacial deformities in adolescent period. Usually, orthoganthic surgery for the cleft patients needs Le Fort I osteotomy and/or mandibular set-back surgery. Previous report from other institute had been shown that there is significant relapse after maxillary movement after Le Fort I osteotomy when the surgical advancement of the maxilla was over than 5 or 7mm in average. Recent comphrehensive report showed that most of the relapse was happened within 1 year and the total horizontal relapse of the maxilla was as high as 30% in average. Therefore, overcorrection is needed in maxillary surgery for cleft patients. Another concerns for cleft orthognathic surgery is the anatomical variation in pterygomaxillary region in cleft patients compared to control patients. Patients with CLP had larger and thicker pterygomaxillary dimensions, and the results imply that careful attention to pterygomaxillary anatomy is needed in patients with CLP undergoing Le Fort I surgery. This article reviews the pre and postoperative considering factors for orthognathic surgery for CLP patients.
Simultaneous Implant Placement with Modified Ridge Splitting/Expansion Technique in the Narrow Edentulous Alveolar Ridge : 3 Cases Report
Authors: Lee Jong-Bin , Lee Jae-Hong , Kim Young-Taek
Published: August 2024

The modified ridge splitting/expansion technique combined with guided bone regeneration (GBR) for implant surgery is used to expand the narrow and atrophied edentulous alveolar ridge. Also, the simultaneous implant placement after ridge splitting/expansion technique can reduce the treatment and healing time. This case report includes three patients with a narrow edentulous alveolar ridge of the 2 to 4mm. All three patients underwent a fracture of thin buccal cortical bone plate, and these defects were corrected by the use of the guided bone regeneration (GBR). After 7 to 18 months, all surgical area was stable, and all implant showed a good healing state on the clinical and radiographic examination. In conclusion, though this surgical method is technique sensitive, the modified ridge splitting/expansion technique combined with GBR for implant surgery is recommended for a horizontal augmentation in the narrow edentulous alveolar ridge.
3 keys for successive direct esthetic restoration
Authors: Cho Sang Ho
Published: August 2024

There is a difficulty for many practioner in anterior direct restroation with composit resin. Because its result is various according to patient, a practioner have a fear about that unpromisable result. Moreover in esthetic region, there is difference in satisfaction by patient character. That is one of difficulty in this practice. But if we make a manual for parctice it will be easier. So I will summarize the process and things to note in direct anterior composite resin restoration.
The cariogenic potentiality index using the sugar contents and the viscosity of Korean food
Authors: Shin Seung Chul , Kwon Hyu Suk , Shim Su Hyun
Published: August 2024

Introduction: Caries prevention through diet control can be achieved clinically by use of the cariogenic potentiality for a range of food commonly eaten by Koreans. Material & methods: The cariogenic potentiality index of each food can be calculated with the sugar contents and the viscosity of each food applying the regression analysis on the variables. 278 favorite foods for Korean were examined. Result 1. The formula of CPI is as below Cariogenic potentiality index (CPI) = 2.581343*sugar contents+0.598324*viscosity 2. The average CPI of the fruits, vegetable are 9.07~9.62 minutes. But the average CPI of the carbohydrate food is 15.21~19.60 minutes. Conclusion: Using the cariogenic potentiality indices, we will be able to determine an individual patients' average oral status for caries experience in the future. In addition, diet control by use of the cariogenic potentiality index and the analysis for each nutrient is considered as useful clinically for diet control in preventive dentistry.
Non-Pharmacological Behavior Guidance in Pediatric Dentistry
Authors: Yoo Seung-Hoon
Published: August 2024

Attitudes of parents toward behavior guidance techniques used in pediatric dentistry have changed for decades. Some techniques were regarded acceptable with authority of dentists' assistance, but now face the objection of caregivers. For the way of breeding is changing, dentist should understand the situation and try to communicate with caregiver for eliminating misunderstanding of the procedures that could induce lawsuit for abusive techniques. Most of all, dentist should try to find the best method for the patient and help to overcome the fear and anxiety. The meaningful knowledge driven from clinical experience should be shared with other dentists to build up sound theoretical foundation.
Comparative study of prosthetic complications associated with the bar-clip, milled bar, and Locator attachments for implant overdentures: a retrospective study
Authors: Yoon Kye-Won , Heo Ji-Ye , Hwang Hee-Sung , Kim Chul-Hoon , Kim Bok-Joo , Kim Jung-Han
Published: August 2024

Purpose. The purpose of this study was to compare the type and frequency of prosthetic complications associated with attachment types for implant overdenture. Material and methods. In this retrospective study, 38 patients (mean age, 63.5 years) have been treated with implant overdentures from 2007 to 2014. Ten patients received a bar-clip attachment. Eleven patients had received a milled bar with Locator attachment. Seventeen patients had received a Locator attachment. The mean follow-up period was 36.9 months (range, 15-83 months). The type and frequency of prosthetic complications was recorded. The frequency was analyzed to determine the statistical difference among the 3 different attachments by using one-way ANOVA (alpha=.05) and Bonferroni post hoc method at a 5% level of significance. Results. The total number of prosthetic complications was higher in the bar-clip attachment (55 events) than in the milled bar with Locator attachment (39 events) and the Locator attachment (34 events). There were no statistically significant differences, and the most common prosthetic complication was the loss of retention. In the bar-clip attachment group, the average frequency of prosthetic complications was 3.0 events per prosthesis during the first year. In the milled bar with Locator attachment and Locator attachment groups, the average frequencies were 1.45 events and 2.35 events, respectively. Statistically significant differences were observed in the frequency of the complication. (p = .043) Conclusions. Compared to the bar-clip attachment, implant overdentures that use milled bars with the Locator attachment have a significantly lower incidence of prosthetic complications in the first year of follow-up after placement.
Digital Orthodontics using Customized Appliance System
Authors: Kim Yoon-Ji R. , Ha Hye-Jung , Lee Sung-Jong , Lee Eon-Hwa , Ryu Jae-Jun
Published: August 2024

Use of ready-made orthodontic appliance can lead to inefficiencies in the final stages of the orthodontic treatment. Because patients' teeth have anatomic variations, brackets that have been designed to fit on average tooth surface may result in positional discrepancies when leveling and alignment is completed. As a result, additional steps such as rebonding, wire bending and use of auxiliaries may be needed. Even in patients who have normal tooth anatomy and proper tooth size relationships, precise bracket placement is crucial in order to efficiently control the tooth positions. Digital models can provide advantages in clinical orthodontics as virtual tooth setup could be performed, and clinicians can easily visualize the predicted final occlusion. Through this setup model, customized brackets with individualized prescription and archwires that optimally fit with the patients' dental arches can be produced using CAD/CAM technology. Also, the brackets can be accurately placed with an aid of 3D-printed jigs. The purpose of this article is to introduce the commonly used labial and lingual customized orthodontic appliance systems using digital technology.
Glandular odontogenic cyst in the posterior mandible: A case report
Authors: Han Jin-Woo
Published: August 2024

The glandular odontogenic cyst (GOC) is a rare cyst derived from odontogenic epithelium with a spectrum of characteristics including salivary gland features. It occurs more commonly in the mandible and most often in the anterior mandible. Radiographically, most cases present a well-defined unilocular or multilocular radiolucency with a cortical boundary. Despite no unique or pathognomonic clinical or radiographic features, the lesion shows potentially aggressive behavior. A 76-year-old male was referred to Gangneung-Wonju National University Dental Hospital with a chief complaint of slight swelling of the right mandible. Cone-beam computed tomography examination revealed a unilocular radiolucent lesion involving impacted third molar at the right posterior mandible. Slight lingual cortical thinning with suspected perforation was also shown. Histopathologically, multiple areas of cyst epithelium showed a glandular differentiation, resulting in mucoid-filled secretory cells and microcyst. Based on these findings, the final diagnosis was determined to be GOC.
Considerations and clinical appliances of various abutments in implant prostheses
Authors: Park Sungwoo , Kim Sunjai , Chang Jae-Seung
Published: August 2024

In the past, restoration of implant crown, ready-made abutment produced by implant manufacturer could only be used. Using straight, angled abutment, there was a limit in adaptation multiple implants. Recently, with the development of implant and CAD/CAM technology, CAD/CAM customized abutment use has become possible which is different from the past when restoration was possible with only prefabricated abutment. Not only it makes emergence profile possible which is similar to natural teeth, but also it makes insertion path possible on CAD in multiple implant restorations. However, on anterior teeth which dental esthetics is very important, another restorations which are formed with natural colored gingiva area could be required. Titanium-based zirconia prostheses which have titanium connection and zirconia structure from 1mm above fixture platform are alternative. Therefore, the purpose of this review is to analyze the characteristics, advantages and disadvantages of the abutment which is used in multiple implant restorations, and to choose right abutment when clinical trials.
Recent Advances of Osseointegrated Implants Removal
Authors: Kim Nam Yoon
Published: August 2024

In spite of appropriate treatment of peri-implantitis, the peri-implant bone loss was keep going, the clinician should remove the osseointegrated implant. the conventional methods are like a extraction of natural teeth, and use of trephine drills. In these days, many exclusive instruments are invented by implant companies. these instruments can make easy, least invasive, less traumatic removal of osseointegrated implants. In generally peri-implant bone loss progress steadily less sign and symptoms that the patient do not want to remove their implants. However, the failure of dental implant is big burden to clinicians and also patients. In the dental implant treatment, there is no 'failure' but only is 'replacement' or 'change'.
Characteristics and clinical meanings of the implant with a sloped marginal configuration
Authors: Kim Taehyung
Published: August 2024

An overall reduction in the horizontal and vertical dimensions occurs following tooth extraction and the resorption of the buccal part of the ridge is more pronounced than the lingual part. Thus, the resulting morphology of the healed alveolar ridge is often presenting with a discrepancy in bone height between the buccal and lingual aspects of the ridge. The implant with a sloped marginal configuration that is designed to match the sloped contour of the alveolar ridge provides the opportunity to maintain the buccal-lingual bone discrepancy and soft tissue around the implant. This paper introduces the OsseoSpeed TX Profile implants with sloped marginal configuration and explains the characteristics and clinical meanings of those implants.
Application of dental implant for orthodontic anchorage
Authors: Kang Hyo-Jin , Park Eun-Jin , Kim Sun-Jong , Pang Eun-Kyoung
Published: August 2024

Currently, dental implants have become predictable and reliable adjuncts for oral rehabilitation. Osseointegrated implants can be used to provide rigid orthodontic anchorage and have advantages compared conventional orthodontic anchorage especially when there were edentulous areas and implants were scheduled as a treatment plan. Orthodontic force doesn't cause the bone loss of osseointegrated implants. Implant materials, surgical protocols and healing time before loading follow the conventional treatment protocol. Because the implants, once installed, can't change the location, meticulous treatment planning should be preceded. Further investigations are needed to standardize the treatment protocol.
Background and Oral Health Implication of the 3rd Basic Plan for Low Fertility and Population Ageing
Authors: Han Dong Hun
Published: August 2024

Korean government enacted the 1st Basic Plan for Low Fertility and Population Ageing in 2005 due to the long-lasting ultra-low birth rate. Based on the Act, Korean government set up a step-by-step strategic goal and establish a basic plan, every five years, to achieve the sustainable development of society corresponding to low fertility and aging society. Over the past decade, the 1st Basic Plan for Low Fertility and Population Ageing (2006-2010) and the 2nd Basic Plan for Low Fertility and Population Ageing (2011-2015) was executed. This year, based on the achievements and limitations of the 1st and 2nd Basic Plan, the 3rd Basic Plan for Low Fertility and Population Ageing begins. In this manuscript, I discuss the background of the 3rd Basic Plan and its significance in oral health area.
Rehabilitation of a crossed-occlusion patient using implant-assisted removable partial denture with Locator® attachment: A case report
Authors: Kim Dong-Woon , Choi Jung-Yun , Seo Jae-Min , Lee Jung-Jin
Published: August 2024

In crossed occlusion, displacement of removable partial denture is likely to occur during function due to different characteristics of abutment and supporting tissue. It increases discomfort to the patient. In addition, adverse effect on the residual ridge and abutment can induce an unfavorable prognosis of the denture. In this case, a small number of implants can be placed in strategic locations. Attachment can be added for additional support and retention of removable partial denture assisted by implants. This article describes the rehabilitation of a crossed occlusion patient using implant-assisted removable partial denture with Locator(R) attachment. After 24 months, the patient was satisfied with the aesthetic and function of the prosthesis that is maintained stable.
Erosive potential of several fruit-flavored liquors in Korea
Authors: Park Seok-Woo , Kim Sang-Kyeom , Jung Eun-Ha , Kwon Ho-Keun , Kim Baek-Il
Published: August 2024

Purpose: The aim of this study was to evaluate the erosive potential of several fruit-flavored liquors marketed in Korea by measuring pH, titratable acidity, and variations in pH utilizing an ISO method. Materials and Methods: Six fruit-flavored liquors were investigated. An orange juice and three kinds of soju were selected as the control beverage. The pH and titratable acidity of the beverages were determined by 1 M NaOH until the pH 5.5 and 7.0 (recorded as TA_5.5 and TA_7.0, respectively). All measurements were performed in triplicate. The process of ISO 28888 was used for measurement of the pH variation (DeltapH) using an under-saturated hydroxyapatite solution (screening solution) and determining the difference between the initial and final pH of the screening solution. The average DeltapH was determined based on 4 measurements. Results: All the fruit-flavored liquors tested in this study showed a pH lower than the critical pH for dental erosion (4.5). The average pH of the fruit-flavored liquors was 2.77 and was also lower than the pH of the soju and an orange juice (control drinks). TA_5.5 and TA_7.0 values of the fruit-flavored liquors were 4.92ml and 7.13ml, respectively. The fruit-flavored liquors showed an erosive potential capable of damaging the enamel surfaces, whereas the orange juice had the highest titratable acidity. The changes in pH determined using the screening solution confirmed that the fruit-flavored liquors had erosive potential, with DeltapH value of 1.53. Conclusions: The fruit-flavored liquors tested in this study might have a strong potential to erode dental hard tissues.
Treatment of pathologically migrated teeth via modified intentional replantation: cases report
Authors: Kim Hyun-Soo , Lee Won-Pyo , Yu Sang-Joun , Kim Byung-Ock
Published: August 2024

Pathologic tooth migration (PTM) caused by periodontal disease is a relatively common disease with a prevalance rate of 30~55%. It is one of the reasons for periodontal treatment of patients. PTM occurs when various factors related to the position of the tooth are altered and clinical features of PTM include facial flaring, diastema, proximal tilting, rotation, and extrusion of teeth. The purpose of this study was to assess the treatment of teeth of hopeless prognosis through the practice of modified intentional replantation on pathologic migrated tooth. This study presents cases using modified intentional replantation for the treatment of pathologic tooth migration caused by severe periodontitis. Modified intentional replantation is a technique that prepares extraction socket by using an implant drill. Based on 3 cases performed with modified intentional replantation, an improvement of clinical periodontal indicators such as probing pocket depth, bleeding on probing, tooth mobility, and pathologic teeth migration was observed after surgery. Also, the patients were satisfied with the functional and esthetic improvement.
Prevention and Solution of the Fracture of Nickel-Titanium Endodontic Instruments
Authors: Kim Hyeon-Cheol
Published: August 2024

Nickel-Titanium (NiTi) rotary instruments have brought a big step toward "efficient" practice of endodontic procedure. The rotary files help clinicians to reduce their working time and also increase the clinical success rate with minimal procedural errors. However, NiTi instruments still have a few drawbacks including unpredictable fatigue fracture. Clinicians may reduce the potential risk of instruments fracture by following some clinical guidelines for rotary instruments. In some clinical cases of instruments fracture, we may try to remove the instruments' fragments or bypass the fragment to reach the apical canal. In some limited cases, the fractured instruments' fragments would not jeopardize the clinical prognosis of root canal treatment. Nevertheless, it is impossible to be overemphasized that the prevention of file fracture is much easier than the removal of fracture fragment. Clinicians need to understand the fracture mechanisms and, in clinic, need to discard the used instruments timely.