의도적 재식술에 관한 임상적 고찰

진명욱(Myoung Uk Jin) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.4

Although non-surgical endodontic procedures have high success rates, failures do occur. These can be managed by root canal re-treatment or surgical intervention. Intentional replantation is an accepted endodontic treatment procedure in which a tooth is extracted and treated outside the oral cavity and then inserted into its socket to correct an obvious radiographic or clinical endodontic failure. Intentional replantation is indicated when other endodontic treatments performed to maintain the tooth have failed, or when endodontic periradicular surgery is not feasible. Intentional replantation may be particularly useful in these cases because these difficult to access areas can be maximally treated while the tooth is out of the mouth without damaging the periodontal attachment in adjacent teeth. In conclusion, intentional replantation is a reliable and even predictable procedure, and should be considered more often as a treatment modality in our efforts to maintain the natural dentition.

상아질형성부전증을 가진 환자의 심미적인 수복치료

진명욱(Myoung Uk Jin) 대한치과의사협회 2008 대한치과의사협회지 Vol.46 No.7

Dentinogenesis imperfecta is one of the most common autosomal dominant traits experienced in humans. It generally affects both the deciduous and permanent dentitions. There are 3 forms of dentinogenesis imperfecta that have been classified into type Ⅰ (osteogenesis imperfecta associated). type Ⅱ (hereditary opalescent dentin). and type Ⅲ (Brandywine isolate opalescent dentin).1.2 The prevalence for all types of dentinogenesis imperfecta is approximately 1 per 8000 subjects. Early diagnosis and treatment are therefore, fundamental, aiming at obtaining a favourable prognosis since late intervention makes treatment more complex. This clinical report describes a treatment solution to the problems encountered by a dentinogenesis imperfecta patient with minimally invasive techniques.

글라스-아이오노머 시멘트와 Emdogain<SUP>®</SUP>을 이용한 구개치은발육구의 치료

진명욱(Myoung Uk Jin) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.1

In recent years, a number of special treatment procedures have been introduced to reestablish new tooth supporting tissues with varying degrees of success including guided tissue regeneration(GTR), bone grafting(BG) and the use of enamel matrix derivative(EMD). EMD is an extract of enamel matrix and contains amelogenins of various molecular weights. Emdogain(EMD) might have some advantages over other methods of regenerating the tissue supporting teeth lost by gum disease, such as less postoperative complications. Emdogain contains proteins(derived from developing pig teeth) believed to regenerate tooth attachment. The decrease in probing depth after EMD treatment is achieved primarily by clinical attachment gain and bone regeneration and only to a minor extent by gingival recession. In conclsion, EMD seems to be safe, was able to regenerate lost periodontal tissues in previously diseased sites based on clinical parameters.

어린이의 구강 내 아말감 충전물에 의한 수은노출과 뇨중수은농도: 6개월 추적조사

백혜진 ( Hye Jin Baek ),최연희 ( Youn Hee Choi ),사공준 ( Kong Joon Sa ),이영은 ( Young Eun Lee ),이희경 ( Hee Kyung Lee ),진명욱 ( Myoung Uk Jin ),송근배 ( Keun Bae Song ) 대한구강보건학회 2012 大韓口腔保健學會誌 Vol.36 No.4

Objectives: Dental amalgam is a widely used filling material for oral cavity. The released mercury vapor from amalgam could have systemic adverse effects potentially. The purpose of this study is to evaluate the relationship between dental amalgam and urinary mercury levels in children during a 6-month timespan. Methods: A total of 525 elementary school children participated in this study. Oral examination was carried out from one dentist. Urine samples collected at baseline and at 6 month were analyzed for mercury and creatinine excretion. Additionally, general characteristics of subjects were surveyed by a questionnaire. The statistical analysis was performed using the SPSS 18.0. Results: Greater amalgam surfaces were associated to higher urinary mercury levels; this tendency was similar at the 6-month observation after the correct baseline data. In the multivariable model, urinary mercury excretion was only associated with amalgam surfaces positively. Conclusions: Even a small amount of mercury uptake from dental amalgam has been associated to increase the mercury concentration of urine.

터널화가 시행된 대구치의 장기적인 임상적 방사선학적 평가

백영란,박진우,서조영,진명욱,이재목,Baek, Young-Ran,Park, Jin-Woo,Suh, Jo-Young,Jin, Myoung-Uk,Lee, Jae-Mok 대한치주과학회 2008 Journal of Periodontal & Implant Science Vol.38 No.3

Purpose: Tunneling is a periodontal surgical procedure that creates access for patient cleansing and maintenance within the furcal area of a molar tooth with severe furcation involvement. Up to date, there are few studies about a long term clinical and radiographic stability of tunneling. The purpose of this retrospective study is to evaluate the long term prognosis after tunnel preparation of molars with through and through furcation. Material and Methods: 25 teeth of 23 patients aged 36 to 70 (mean age 51.7) were treated surgically with tunnel preparation. These cases were followed for 2 to 13 years (mean 6.5years) after surgery. Patients were recalled for an evaluation which was based on a questionnaire, a clinical examination, and radiographic analysis. Clinical assessment included plaque index, caries registration, probing pocket depth, bleeding on probing, tooth mobility. Baseline and over 2-year follow-up radiographs were collected and evaluated for this study. Result: 3 teeth(12%) had been extracted and 1 tooth(4%) hemisected. Root caries was detected in 3 teeth(12%). Thus 72% of the teeth were still caries tree and in function. Clinical parameters including PI, PD, BOP, mobility showed somewhat favourable results. Radiographic furcal bone loss showed no statistically significant difference compared to interproximal crestal bone loss ($3.59{\pm}1.69%$ vs $3.42{\pm}2.95%$) when root length was used as reference. There was no correlation between root trunk length and furcal bone loss. Conclusion: Over 2 years after tunneling procedure, teeth showed a clinically and radiographically stable condition, despite of slight root caries and alveolar bone loss within clinically acceptable range. The tunnel procedure may be considered as a viable periodontal treatment option for molar teeth with severe furcation involvement in individuals following a regular maintenance program.

한국 청소년의 위생습관 중 잇솔질과 손 씻기의 연관성

진혜정 ( Hye Jung Jin ),이영은 ( Young Eun Lee ),안상헌 ( Sang Hun Ahn ),진명욱 ( Myoung Uk Jin ),최순례 ( Soon Lye Choi ),송근배 ( Keun Bae Song ),최연희 ( Youn Hee Choi ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.1

Objectives: The aim of this study was to evaluate the relationship between the hand washing management and tooth brushing frequency. Methods: The subjects in this study were 7,285 adults who were selected from the third-year(2009) raw data of the fourth national health & nutrition survey. Results: The mean frequency of daily toothbrushing was 3.35. Increases the frequency of both toothbrushing and hand washing with higher grade class. The higher the tooth brushing frequency, the intention of hand washing management at school and home was more increased. Conclusions: This study can contribute to the general health and oral health promotion.

노인 환자에 있어서 치아 재식술 및 이식술의 임상적 고찰

하정홍(Ha Jung-Hong),진명욱(Jin Myoung Uk) 대한치과의사협회 2012 대한치과의사협회지 Vol.50 No.8

The purpose of this article is to discuss the effect of aging on the treatment of replantation and transplantation of teeth in old patients. 1 case of replantation and 2 cases of transplantations in old patients are reported in this article. Patients aged 65 and over are included. They had several problems such as periapical lesion, crack or root fractures. In those cases, the replantation and transplantation were treatment of choice. White ProRoot MTA was used in apical retrograde filling and perforation repair. After replantation and transplantation of teeth, follow-up visits showed signs of healing in 3 cases. Considerations and indications for replantation and transplantation are not much affected by age. Old patients are aware that replantation and transplantation can be performed comfortably and that age is not a factor in prediction success.

생쥐 배아 혀 상피의 발생과정에서 나타나는 사이토케라틴 1, 14와 PAX 9에 관한 면역조직화학적 연구

정혜인(Hye-In Jung),진명욱(Myoung-Uk Jin),조제열(Je-Yoel Cho),정한성(Han-Sung Jung),김재영(Jae-Young Kim) 대한체질인류학회 2008 대한체질인류학회지 Vol.21 No.4

피부의 상피에 대한 연구는 부속기관의 발생 그리고 보호장벽 형성과 같은 다양한 분야에서 연구되어 왔다. 혀 상피조직의 발생과 관련된 보호장벽의 형성 및 상피조직 분화에 대해서는 많은 연구가 필요한 실정이다. 본 연구에서는 혀의 보호장벽이 형성되고 상피의 분화가 일어나는 발생중인 혀를 이용하여 보호장벽 형성과정을 면밀하게 관찰하였고, 피부의 상피에서 나타나는 다양한 사이토케라틴의 발현양상을 발생중인 혀에서 조직면역화학방법으로 확인하였다. 혀 상피의 발생과정에서 PAX 9의 발현이 사이토케라틴 14와 겹쳐서 나타나는 것을 확인할 수 있었으며, 또한 Ki67을 이용한 상피세포의 증식양상과 비교해 볼 때, 유사하게 나타나는 것을 확인할 수 있었는데 이는 PAX 9, 사이토케라틴 14와 세포의 증식이 혀 보호장벽 형성에 관여하는 중요한 인자로 작용할 수 있을 것이라고 생각된다. 이러한 다양한 상피분화관련 인자들의 발현양상들을 비교해 볼 때, 혀 상피의 분화는 E15에서 본격적으로 시작되어 보호장벽의 형성 이전에 사이토케라틴 14와 PAX 9과 같은 인자들의 발현이 먼저 나타나게 되면서 상피의 분화가 진행되고, 이후 사이토케라턴 1과 같은 각질화 관련 인자가 보호장벽 형성에 기여한다고 생각된다. Epithelial differentiation and morphogenesis in skin and oral mucosa were elucidated using various experimental tools. However, tongue epithelial differentiation has not been examined properly yet. In this study, we identified the relationship between morphological changes and localizations of differentiation markers, such as cytokeratins and PAX 9 in mice embryonic tongue development. Protective barrier formation and localization pattern of cytokeratins in tongue epithelium were examined with toluidine blue staining and immunohistochemistry respectively. Localization patterns of PAX 9 and Cytokeratin 14 were coincided during tongue epithelium development. In addition, compared with Ki67 localizations , marker for cell proliferation, localization patterns of PAX 9 and Cytokeratin 14 would suggest that these factors would involve in tongue barrier formation through cell proliferation. Based on these results, tongue epithelial differentiation would begin at E14 with the specific localizations of PAX 9 and Cytokeratin 14 prior to protective barrier formation then Cytokeratin 1, keratinization marker, would involve in protective barrier and filiform papillae formations.

한국 성인의 우식예방 인식과 자녀의 우식예방 실천행위조사; 한국갤럽자료분석

송근배 ( Keun Bae Song ),진혜정 ( Hye Jung Jin ),황윤숙 ( Yoon Sook Hwang ),진명욱 ( Myoung Uk Jin ),최연희 ( Youn Hee Choi ) 한국치위생과학회 2012 치위생과학회지 Vol.12 No.4

This study was to evaluate the influence of dental caries prevention-related concerned and perceived in Korean adults and oral health behavior of their first child if they had children. A cross-sectional study in 1,014 adults over 19 years old were conducted in Korean adults, asked to answer a computer-assisted telephone interview regarding their oral health-related knowledge, behavior, concerned of caries prevention and child`s behaviors such as frequencies of tooth brushing, chewing the xylitol gum and dental checkup. The statistical analysis was done by using the SPSS 19.0 program (IBM Co., Armonk, NY, USA). Awareness of caries prevention in the female than male, 40∼49 years old age group was higher. Parents of school-age children were higher level of awareness of the dental caries prevention than other group. As knowledge and behavior of dental caries prevention were higher, the child`s conduct regular oral health checkups, fluoride topical application and dental sealant was significantly higher. The higher the concerned of caries preventive, the intention of oral health behaviors and child`s oral health behaviors was more increased. Awareness of caries prevention had effect on the perception of the impact of the child`s oral health behaviors.

Silorane 기질 복합레진의 색조와 두께가 중합 물성에 미치는 영향

손성애(Sung-Ae Son),노형미(Hyoung Mee Roh),권용훈(Yong Hoon Kwon),진명욱(Myoung-Uk Jin),박정길(Jeong-Kil Park) 대한치과재료학회 2014 대한치과재료학회지 Vol.41 No.4