• 대한치과보철학회지
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• 제8권1호
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• pp.9-14
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• 1968

A total of 11,039 permanent missing teeth and their 2,696 prosthetic replaced teeth in 6,123 Korean patients were selected for this study, Analyzing the data according to age, sex, jaw and the location, following results were obtained. 1. Tooth mortality and replacement were higher in female than in male. 2. Replaced teeth were only 24 percent of missing teeth. 3. More teeth were extracted and replaced on lower jaw in young patients and on upper jaw in old patients. 4. There are no significant difference in right and left sides of both jaws in missing and replaced teeth, respectively. 5. First molar was the highest percentage in both mortality and replacement. 6. Upper tooth mortality and replacement were higher in anterior portion and lower in posterior portion.

• Restorative Dentistry and Endodontics
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• 제39권3호
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• pp.220-225
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• 2014

A fiber-reinforced composite (FRC) fixed prosthesis is an innovative alternative to a traditional metal restoration, as it is a conservative treatment method. This case report demonstrates a detailed procedure for restoring a missing anterior tooth with an FRC. A 44-year-old woman visited our department with an avulsed tooth that had fallen out on the previous day and was completely dry. This tooth was replanted, but it failed after one year. A semi-direct technique was used to fabricate a FRC fixed partial prosthesis for its replacement. The FRC framework and the pontic were fabricated using a duplicated cast model and nanofilled composite resin. Later on, interproximal contact, tooth shape, and shade were adjusted at chairside. This technique not only enables the clinician to replace a missing tooth immediately after extraction for minimizing esthetic problems, but it also decreases both tooth reduction and cost.

• 대한치과의사협회지
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• 제21권5호통권168호
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• pp.395-402
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• 1983

The purpose of this study was to apply the etched metal ceramometal retainer using a composite resin and acid-etch procedure with minimal tooth reduction of abutments for the replacement of one missing anterior or posterior tooth. Author obtained the following conclusions. 1. conservation of tooth structure and minimal chair time and patient expense were the primary advantages of etched metal retainer. 2. This fixed partial denture permitted good esthetic results. 3. This retainer was successfully applied for the replacement of one missing anterior or posterior tooth. 4. Proper retainer etching ws an important procedure. 5. Etched castings could be applied to periodontal splinting and post orthodontic fixation.

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 1999년도 Asian Academy of Prosthodntics. Korean Academy of Prosthodontics
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• pp.60-60
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• 1999

• International Journal of Oral Biology
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• 제49권2호
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• pp.48-52
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• 2024

This study explores the histological features and Bmp4 expression patterns in the replaced tooth germ of Xenopus laevis. Tooth germ formation starts from the dental placode through epithelial-mesenchymal interactions, involving various signaling pathways such as Fgf, Shh, Bmp, and Wnt. In mice, Bmp4 expression in the dental placode inhibits Pax9 expression in the dental mesenchyme. Although absent in the presumptive dental lamina of birds and toothless mammals, Bmp4 remains conserved in reptiles and fish owing to gene duplication. However, its expression in amphibian tooth germs is poorly understood. Three-month-old X. laevis were employed in this study. Initially, samples underwent paraffin embedding and were sectioned into 5 or 12 ㎛ ribbons for H&E staining and in situ hybridization, respectively. Results revealed teeth appearing in two maxillary rows: the labial side, with prefunctional and functional teeth, and the lingual side, with replaced tooth germs behind functional teeth. Enameloid was observed between the inner dental epithelium and dental mesenchyme at the cap or early bell stages, whereas enamel and dentin formed during the late bell or mineralization stages from the replaced tooth germ. Bmp4 expression was evident in the inner dental epithelium (ameloblasts), dental papilla (odontoblasts), stellate reticulum, and Hertwig's epithelial root sheath. Overall, these findings highlight the conservation of Bmp4 expression in X. laevis tooth development.

• Restorative Dentistry and Endodontics
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• 제31권6호
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• pp.460-469
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• 2006

본 연구는 환자의 성별, 치료 부위 , 와동 형태 , 기존 수복물의 재료에 따른 구치부 재수복에 관하여 보고하고자 한다. 2003년 12월 1일부터 2004년 10월 31일까지 구치부의 재수복을 위해 보존과를 내원한 824명의 환자의 1206개의 치아를 실험재료로 택하였으며 영구치로 제한하였다. 환자의 성별 및 연령, 치료 부위, 와동 형태, 기존 수복물의 재료와 기존 수복물의 내원 당시 상태를 변연 적합성, 해부학적 형태, 이차 우식에 대해 modified Ryge criteria system으로 기록하였다. 환자 및 치아 요소에 따른 재수복율은 카이 제곱 검정으로, 각 재료별 기존 수복물의 상태는 One-way ANOVA로 분석하였다. 구치부 수복물의 재수복은 환자의 성별, 연령 , 치아 위치, 기존 수복 재료에 따른 차이가 존재함을 알 수 있었다.

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 1994년도 춘계학술대회
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• pp.46-46
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• 1994

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 1998년도 춘계학술대회
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• pp.18-18
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• 1998

• 대한치과의사협회지
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• 제37권9호통권364호
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• pp.636-640
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• 1999

• 대한치주과학회:학술대회논문집
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• 대한치주과학회 2002년도 제42회 종합학술대회 연제초록
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• pp.9-10
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• 2002