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2017 대치 협회지표지 2016.12.29 3:56 PM 페이지1 mac001 in 2540DPI 100LPI ISSN 0376-4672 대 한 치 과 의 사 협 회 지 Vol.55 No.1 2017. 1 대한치과의사협회지 THE JOURNAL OF THE KOREAN DENTAL ASSOCIATION Vol.55 No.1 2017. 1 통권 제572호

2017 대치 협회지표지 2016.12.29 3:56 PM 페이지2 mac001 in 2540DPI 100LPI 대한치과의사협회지 학술원고 투고 규정 경우 저자의 성을 영문으로 쓰고 소괄호속에 발행년도를 표시하며, 문장 중간이나 끝에 별도로 표시할 때에는 쉼표 나 마침표 뒤에 어깨번호를 붙인다. 참고문헌이 두 개 이 상일 때에는 소괄호속에, 으로 구분하고 발행년도 순으 로 기재한다. 저자와 발행년도가 같은 2개 이상의 논문을 인용할 때에는 발행년도 표시뒤에 월별 발행 순으로 영문 알파벳 소문자 (a, b, c,...) 를 첨부한다. c. 참고문헌의 저자명은 한국인은 성과 이름, 외국인은 성과 이름, 외국인은 성 뒤에 이름의 첫 자를 대문자로 쓴다. 정 기학술지의 경우 저자명, 제목, 정기간행물명 (단행본명), 발행연도, 권, 호, 페이지 순으로 기록한다. 단행본의 경우 저자명, 저서명, 판수, 출판사명, 인용부분의 시작과 끝 쪽 수 그리고 발행년도의 순으로 기술한다. 학위논문은 저자 명, 학위논문명, 발행기관명 그리고 발행년도 순으로 한다. 참고문헌의 저자는 모두 기재하며 저자의 성명은 성의 첫 자를 대문자로 하여 모두 쓰고, 이름은 첫문자만 대문자로 연속하여 표시한다. 이름사이에는 쉼표를 쓴다. 논문제목은 첫 자만 대문자로 쓰고 학명이외에는 이탤릭체를 쓰지 않 는다. 학술지명의 표기는 Index Medicus 등재 학술지의 경우 해당 약자를 사용하고, 비등재학술지는 그 학술지에서 정 한 고유약자를 쓰며 없는 경우에는 학술지명 전체를 기재 한다. 기술양식은 아래의 예와 같다. d. 정기학술지 논문 Howell TH. Chemotherapheutic agents as adjuncts in the treatmenr of periodontal disease. Curr Opin Dent 1991;1(1):81-86 정유지, 이용무, 한수부. 비외과적 치주 치료: 기계적 치주치료. 대한치주과학회지 2003;33(2):321-329 e. 단행본 Lindhe J, Lang NP, Karring T. Clinical periodontology and implant dentistry. 4th edition. Blackwell Munksgarrd. 2008. 대한치주과학교수협의회. 치주과학. 제4판. 군자출판사. 2004. f. 학위논문 SeoYK - Effects of ischemic preconditioning on the phosphorylation of Akt and the expression of SOD-1 in the ischemic-reperfused skeletal muscles of rats Graduate school Hanyang University 2004. ⑥ 표 (table) a. 표는 영문과 아라비아숫자로 기록하며 표의 제목을 명료 하게 절 혹은 구의 형태로 기술한다. 문장의 첫 자를 대문 자로 한다. b. 분량은 4줄 이상의 자료를 포함하며 전체내용이 1쪽을 넘 지 않는다. c. 본문에서 인용되는 순서대로 번호를 붙인다. d. 약자를 사용할 때는 해당표의 하단에 알파벳 순으로 풀어 서 설명한다. e. 기호를 사용할 때는 *,,,,..,, **,, 의 순으 로 하며 이를 하단 각 주에 설명한다. f. 표의 내용은 이해하기 쉬워야 하며, 독자적 기능을 할 수 있어야 한다. g. 표를 본문에서 인용할 때는 Table 1, Table 2, Table 3 이라 고 기재한다. h. 이미 출간된 논문의 표와 동일한 것은 사용할 수 없다. ⑦ 그림 및 사진 설명 a. 본문에 인용된 순으로 아라비아 숫자로 번호를 붙인다. 예) Fig. 1, Fig. 2, Fig. 3,... b. 별지에 영문으로 기술하며 구나 절이 아닌 문장형태로 기 술한다. c. 미경 사진의 경우 염색법과 배율을 기록한다. ⑧ 그림 및 사진 (Figure) a. 사진의 크기는 최대 175 230mm를 넘지 않아야 한다. b. 동일번호에서 2개 이상의 그림이 필요한 경우에는 아라비 아숫자 이후에 알파벳 글자를 기입하여 표시한다 (예: Fig. 1a, Fig. 1b) c. 화살표나 문자를 사진에 표시할 필요가 있는 경우 이의 제 거가 가능하도록 인화된 사진에 직접 붙인다. d. 그림을 본문에서 인용할 때에는 Fig. 1, Fig. 2, Fig.3,... 라고 기재한다. e. 칼라 사진은 저자의 요청에 의하여 칼라로 인쇄될 수 있으 며 비용은 저자가 부담한다. ⑨ 영문초록 (Abstract) a. 영문초록의 영문 제목은 30 단어 이내로 하고 영문 저자명 은 이름과 성의 순서로 첫 자를 대문자로 쓰고 이름 사이 에는 하이픈 - 을 사용한다. 저자가 여러명일 경우 저자명 은 쉼표로 구분한다. 저자의 소속은 학과, 대학, 대학교의 순서로 기재하며 주소는 쓰지 않는다. 제목, 저자와 소속의 기재방법은 한글의 경우와 같다. b. 영문초록의 내용은 600 단어 이내로 작성하며 논문의 목 적, 재료 및 방법, 결과와 결론의 내용이 포함되도록 4개의 문단으로 나누어 간결하게 작성한다. 각 문단에서는 줄을 바꾸지 말고 한 단락의 서술형으로 기술한다. 영문초록 아 래쪽에는 7단어 이내의 주제어 (keyword)를 영문으로 기재 하며 각 단어의 첫글자는 대문자로 쓴다. 이때 주제어는 Index Medicus 에 나열된 의학주제용어를 사용하여야 한다. 영문초록의 아래에는 교신저자 명을 소괄호속의 소속과 함께 쓰고 E-mail 주소를 쓴다. ⑩ 기타 a. 기타 본 규정에 명시되지 않은 사항은 협회 편집위원회의 결정에 따른다. b. 개정된 투고규정은 2009년 11월 18일부터 시행한다. 10. 연구비의 지원을 받은 경우 첫 장의 하단에 그 내용을 기록한다. 11. 원저의 게재 및 별책 제작 원저의 저자는 원고게재에 소요되는 제작실비와 별책이 필요한 경우 그 비용을 부담하여야 한다.

The Journal of The Korean Dental Association January 2017 C O N T E N T S 7 21 71 4 96 103 105

News & News News &News News &News 4

www.kda.or.kr News & News News & News 5

T E L 2024-9290 F A X 468-4653 E-mail kdapr@chol.com

Korean Dental Association ABSTRACT Quality assurance of dental care and appropriate supply of dentists in view of the increasing inflow of dental graduates from abroad 1) The Korean Institute of Dental Education and Evaluation, School of Dentistry, 2) Kyung Hee, 3) Gangneung-Wonju National, 4) Seoul National University, Seoul, Korea, 5) Chung-Ang University, Seoul, Korea Je-Won Shin 1, 2) *, Yun-Jin Kim 1, 5), Kyung-Nyun Kim 1, 3), Kack-Kyun Kim 1, 4) 1, 4), Jae Il Lee The purpose of this study is to analyze the data on the medical personnel education system and license scheme and provide the basic material for an enhanced qualification system. In China, dental education reform has been underway with a view to providing an inclusive basic medical service package to the whole country by 2020. It is also estimated that the number of Korean dental medicine students in China would be fewer. And most of them desire to get a job in China after acquiring the Chinese license, suggesting little prospect of a massive inflow into Korea in the near future. In Japan, students are required to complete a clinical training program for over 1 year after receiving licenses to become an independent practitioner. But they can apply for the Korean preliminary examination without this post-graduation process. For this reason, the quality issue in license effectiveness review has been seriously discussed. It is deemed desirable to limit the Korean accreditation to Japanese graduates from the dental schools certified by the Japanese dental accreditation body. Key words : Dental Education, Medical Personnel Education System, License Scheme 7

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오리 도비라 2016.12.29 4:2 PM 페이지1 mac001 in 2540DPI 100LPI 1 김신영, 김용건 치주치료 후 유지치주치료의 효과에 관한 평가 : 1년 관찰 2 정휘성, 강준호, 장윤영, 윤정호 임플란트 주위 각화 조직 폭경의 증대를 위한 유리치은 이식술과 세포외 기질 이식술의 임상적 평가 3 안혜라, 서민석 근관치료의 근관장 측정에 관한 연구: 근관치료학 전공 교수 설문 4 장연화, 백경희 치과 의료광고 규제에 관한 소고 - 대법원 판결과 헌법재판소 결정을 중심으로 - 5 박민수, 황호길, 조형훈 단근 소구치의 근관계 형태에 따른 치근단 부위의 근관 형태

ORIGINAL ARTICLE 1 ABSTRACT The effect of supportive periodontal therapy after periodontal treatment : A 1-year follow up. Department of Periodontology, School of Dentistry, Kyungpook National University Shin-Young Kim, Yong-Gun Kim Purpose : Preservation of the periodontal health of the treated patient requires supportive periodontal therapy for the elimination of periodontal disease. After Phase I therapy is completed, patients are placed on a schedule of periodic recall visits for maintenance care to prevent recurrence of the disease. The amount of tooth loss would be the most relevant criterion in an evaluation of the effect of periodontal treatment, but this would require studies with extremely long follow-up periods. Thus the most commonly used outcome criteria in clinical research have been clinical attachment level change, reduction of pocket depth and bleeding frequency. The purpose of this case study is to identify the effect of supportive periodontal therapy after periodontal flap surgery. Materials & Methods : Following routine hygienic phase of treatment, patients with chronic periodontitis received surgical periodontal treatment. Bleeding on probing, pocket depth and clinical attachment level were measured at baseline, pre-operation and 1 year follow up. All procedures were performed by one operator. Results : One year a total of 28 patients (58sites) to recheck remained, when conducted maintenance program after periodontal flap surgery was observed reduction of bleeding frequency, pocket depth and improvement of clinical attachment level. Conclusion : The results from this study indicate that supportive periodontal therapy after periodontal flap surgery is effective for reduction of bleeding frequency, pocket depth and gain of clinical attachment level. Key words : supportive periodontal therapy, pocket depth, bleeding on probing, clinical attachment level 22

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ORIGINAL ARTICLE 2 ABSTRACT Clinical evaluation of the effects of free gingival and extracellular matrix grafts to increase the width of the keratinized tissue around dental implants 1) Department of Periodontology, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, Jeonju, 2) Division of Periodontology, Department of Dentistry, Inha International Medical Center, Incheon Hwi-Seong Jeong 1), Jun-Ho Kang 1), Yun-Young Chang 2), Jeong-Ho Yun 1) Inadequate keratinized mucosa around dental implants can lead to more plaque accumulation, tissue inflammation, marginal recession and attachment loss. We evaluated the effects of free gingival and extracellular matrix membrane grafts performed to increase the insufficient width of keratinized tissue around dental implants in the posterior mandible. A 47-year-old female patient presented with discomfort due to swelling of the lower right second premolar area. Due to severe destruction of alveolar bone, the tooth was extracted. After 3 months, a guided bone regeneration (GBR) procedure was performed and then a dental implant was placed 6 months later. During the second-stage implant surgery, free gingival grafting was performed to increase the width of the keratinized tissue. After 12 months, a clinical evaluation was performed. A 64-year-old female patient had a missing tooth area of bilateral lower molar region with narrow zone of keratinized gingiva and horizontal alveolar bone loss. Simultaneous implant placement and GBR were performed. Five months after the first-stage implant surgery, a gingival augmentation procedure was performed with an extracellular matrix membrane graft to improve the width of the keratinized tissue in the second-stage implant surgery. After 12 months, a clinical evaluation was performed. In these two clinical cases, 12 months of follow-up, revealed that the increased width of the keratinized tissue and the deepened oral vestibule was well maintained. A patient showed a good oral hygiene status. In conclusion, increased width of keratinized tissue around dental implants could improve oral hygiene and could have positive effects on the long-term stability and survival rate of dental implants. When planning a keratinized tissue augmentation procedure, clinicians should consider patient-reported outcomes. Key words : Dental implants, Keratinized tissue, Free gingival graft, Extracellular matrix 30

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ORIGINAL ARTICLE 3 ABSTRACT A survey on working length determination of endodontic treatment Department of Conservative Dentistry, School of Dentistry, Wonkwang University Hye-ra Ahn, Min-Seock Seo* The purpose of this study is to evaluate the preferred method of root canal length determination and the apical limit for canal instrumentation among endodontic teachers of dental school. A questionnaire on the preferred method of root canal length determination and the apical limit for canal instrumentation was designed and distributed to endodontic teachers of various dental schools. The response rate was 90%. The most preferred method of root canal length determination was Electronic apex locator (EAL)(89%). The most favoured apical limit for canal instrumentation was 0.5 to 1.0 mm short of the radiographic apex(78%). The most preferred method of using EAL was that the working length is taken at APEX mark and then distracted 0.5mm from that length.(41%). When there is no agreement between radiographic measurement and EAL measurement, 74% of respondents chose the length of EAL measurement. The majority of endodontic teachers from Korean dental schools preferred EAL to radiograph method in determining root canal length. Key words : Apical limit, Electronic apex locator, Root canal, Working length, 42

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ORIGINAL ARTICLE 4 ABSTRACT A Study on the Regulation of Dental Medical Advertisements -Focusing on the Decisions of the Supreme Court and the Constitutional Court- Inha University Law School Yeonhwa Chang, Kyonghee Baek As the citizens life and body are the object of medical practice, it should ultimately protect the citizens right of health. For this reason, medical practice possesses characteristics of non-profit and public and such special characteristics caused heavy regulations in the medical industry as exemplified by medical advertisements. For advancement of market economy, the government has been moving toward relaxing regulations in the medical industry and this trend can be shown in medical advertisements. Moreover, as a type of commercial advertisements, medical practitioners should be able to express their freedom of expression and freedom to occupation. From the perspective of patients who are medical consumers, they need access to information to locate appropriate medical practitioners and institutions for their symptoms. Therefore, medical advertisements can help realize the patients right to know. This study will first analyze the general theories behind the necessity of medical advertisements and details of regulations, then analyze the issues from the cases of the supreme court and the constitutional court that are related to dental medical advertisements. Key words : Medical Practice, Non-Profit, Public, Medical Advertisement, Dental Medical Advertisement 53

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ORIGINAL ARTICLE 5 ABSTRACT The apical root canal shape according to the root canal system of premolars with single root Department of Conservative Dentistry, School of Dentistry, Chosun University Min-Soo Park, Ho-Keel Hwang, Hyoung-Hoon Jo* Materials and methods: Sixty extracted premolars were assigned to three groups according to the root canal system (Weine s classification; type I, II and III) of 20 teeth each using radiographic examination. The root tip was cut horizontally 1 mm from the anatomical apex and the apical cross-section was visualized using microscope at x50 magnification and photographed. Minimum and maximum apical root canal diameter of each tooth was measured and classified into three types by canal morphology (round, oval and flattened shape). Statistical analysis was performed to compare the apical root canal diameter and morphology according to the root canal system. Results: In apical root canal morphology at cross-sectional view, the most common shape was round in type I, flat in type II, and oval in type III. In apical root canal diameters at cross-sectional view, there was a significant difference between the minimum and maximum diameter in all types (p<0.05). The maximum diameter was 0.331 mm in type I, 0.519 mm in type II, and 0.310 mm in type III. There was a significant difference among type I, III and type II (p<0.05). Conclusion: The morphology and diameter of apical root canal was different according to the root canal system. Therefore, clinicians should consider the apical file size in view of the apical root canal shape according to the root canal system. Key words : Apical, Root canal morphology, Root canal system, Premolar 63

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도비라 2016.12.29 4:7 PM 페이지1 mac001 in 2540DPI 100LPI 성공적인 총의치 제작을 위한 단계별 포인트 1 박찬진 성공적인 총의치 제작을 위한 단계별 포인트 - 무치악인상채득, 이것이 핵심이다. 2 백장현 총의치 교합 3 송영균 총의치의 유지관리

Korean Dental Association ABSTRACT Clinical considerations of impression making for edentulous patients Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University Chan-Jin Park, D.D.S., M.S.D., Ph.D. Regardless of the type of impression being made, the tray is the most important part of the impression-making procedure for completely edentulous patients. Dentists have to make use of a combination of rigid, thermoplastic, and resilient materials and control step-by-step procedure from irreversible hydrocolloid impression to definitive cast fabrication. For successful edentulous impression, some considerable clinical tips were guided. Key words : complete denture, tray, impression, impression material 72

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Korean Dental Association ABSTRACT Complete Denture Occlusion Department of Prosthodontics, School of Dentistry, Kyung Hee University Janghyun Paek, DMD, MS, PhD Proponents of bilaterally balanced occlusion believe that this occlusal concept is important for denture retention and stability. However, the critical appraisal of the literature reveals no scientific evidence to support the bilaterally balanced occlusion as the ideal occlusal concept for conventional complete dentures. Current evidence suggests that the occlusal concept has little influence on clinical outcomes or patient satisfaction. Additional randomized controlled clinical trials should be developed taking into account the influence of mucosal resiliency, alveolar ridge anatomy, and parafunctional activities on occlusal concept choice. In this paper, various types of complete denture occlusion (bilaterally balanced occlusion, lingualized occlusion, canine-guided occlusion) will be reviewed and compared. Key words : artificial teeth, bilaterally balanced occlusion, lingualized occlusion, canine-guided occlusion 82

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Korean Dental Association ABSTRACT Maintenance of complete denture Department of Prosthodontics, College of Dentistry, Dankook university Young-Gyun Song. DDS MSD PhD As residual ridge resorption occurs, complete dentures tend to become loose. Denture relining and rebasing are an essential element for improving a denture s stability and prevention side effect such as sore spot, epulis fissuratum. This paper focuses about health insurance is available for maintenance of complete denture and, methods of relining or rebasing. Key words : complete denture, reline, rebase 90

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