• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 2002년도 추계학술대회
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• pp.25-25
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• 2002

• 대한치과의사협회지
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• 제32권5호통권300호
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• pp.336-340
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• 1994

• 대한치과보철학회지
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• 제5권1호
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• pp.1-12
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• 1964

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 1999년도 Asian Academy of Prosthodntics. Korean Academy of Prosthodontics
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• pp.94.2-95
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• 1999

• The Journal of Advanced Prosthodontics
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• 제16권3호
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• pp.200-200
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• 2024

• The Journal of Advanced Prosthodontics
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• 제7권3호
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• pp.264-270
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• 2015

This report describes the case of an edentulous patient with an atrophic maxilla and severe class III malocclusion. Prosthetic rehabilitation was performed using CAD/CAM techniques for manufacturing an implant-supported overdenture with horizontal insertion. A vestibulo-lingual insertion overdenture is a precision prosthesis with a fixation system affording a good fit between the primary and secondary structure. Both structures exhibit passive horizontal adjustment. This treatment option requires the same number of implants as implant-supported fixed dentures. The horizontal assembly system prevents the prosthesis from loosening or moving in response to axial and non-axial forces. The technique was used to rehabilitate a patient presenting an atrophic upper maxilla, with the insertion of 8 implants. No complications were reported at follow-up 3, 6 and 12 months after fitting of the prosthesis. This system offers solutions to the clinical and laboratory complications associated with hybrid prostheses, concealing emergence of the chimneys and improving implant-prosthesis hygiene.

• 대한치과기공학회지
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• 제34권3호
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• pp.315-324
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• 2012

Purpose: The purpose of this study was to survey dental prosthesis and dental prosthesis needs of elderly for improving oral health status. Methods: The data collected from 'The fifth Korean national health and nutrition examination survey 2010' was analyzed in this study. Statistical analysis was done using the Statistical Package for Social Sciences version 19.0 for Windows. We determined frequencies and percentage, calculating means, and standard deviations, and determined statistical significance using cross-tabulation analysis, logistic regression analysis. Results: General characteristics showed differences in mandible fixed crown bridge needs associated with periodontal disease. General characteristics showed differences in maxillar partial and full denture with gender, age, education, perceived oral health. General characteristics showed differences in mandible partial and full denture with age, residence, education, perceived oral health. Conclusion: In order to improve oral health of the elderly, Dental prosthesis support policy and oral health policy are necessary.

• 대한치과보철학회지
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• 제34권3호
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• pp.632-649
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• 1996

The purpose of this study was to examine, by the method of 3-dimentional finite element analysis. how infraocclusion affected the stress distribution in surrounding bone and osseointegrated prosthesis. The 3-dimentional finite element mandibular models were made, in which the first and second molars were removed and the two osseointegrated implants were placed in the first and second molar sites and implant supported fixed prostheses were constructed. Analysis of equivalent stress and displacement induced by strong occlusion or infraocclusion was performed under vertical or inclined distributed loads. The results were as follows; 1. Under vertical load of 50N or 500N, the model in which infraocclusion had not been allowed showed greater stress on implants and the supporting bone than on natural teeth. 2. In the model in which infraocclusion of $30{\mu}m$ had been allowed, implant-prosthesis on the molars had no contact with opposing teeth under vertical load of 50N, However with the same allowed infraocclusion and the model under vertical load of 500N, implant prosthesis on the second molar had contact with opposing teeth, and stress distribution occured properly on natural teeth and implants. 3. Under $45^{\circ}$ inclined load, the model in which infraocclusion had not been allowed showed greater stress on implants and the supporting bone than on natural teeth. There was greater stress in the case of $45^{\circ}$ inclined load than in the case of vertical load. 4. Under $45^{\circ}$ inclined load of 50N or 500N, the model in which infraocclusion of $30{\mu}m$, had been allowed showed no occlusal contact on the implants and occlusal contact on the natural teeth. 5. In partially edentulous cases with implant supported prosthesis, we can prevent excessive load on implants by allowing infraocclusion.

• 대한치과보철학회지
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• 제56권2호
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• pp.95-104
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• 2018

목적: 이 연구의 목적은 새롭게 개발된 대한치과보철학회의 보철물 평가 기준을 적용하여 고정성, 가철성 그리고 임플란트 보철물의 성공과 실패를 평가함으로써 보철물의 수명과 이에 관련된 요인을 분석하는 데 있다. 대상 및 방법: 전국 13개 대학/종합병원 보철과에 내원한 환자들을 대상으로 구강내 사용중인 보철물을 평가하였다. 대한치과보철학회의 기준에 따라, 수는 성공, 우, 양, 가는 실패로 규정하고, 실패한 보철물의 평균 사용기간과 실패와 관련된 요인을 분석하였다. Kaplan-Meier 분석에 의한 성공률을 분석하였다. 결과: 고정성 보철 810 증례, 가철성 보철 519 증례, 그리고 임플란트 보철 475 증례, 총 1,804 증례가 연구에 포함되었다. 검사 시점에 실패로 판정된 보철물의 평균 사용기간은 고정성 보철물은 $11.41{\pm}0.30$년, 중간값은 10년이었고, 가철성 보철물은 $8.18{\pm}0.29$년, 중간값 7년이었으며, 임플란트 보철물은 $7.99{\pm}0.30$년, 중간값은 7년이었다. 실패와 관련있는 요인 중 고정성보철물은 유닛 수, 지대치 수, 근관치료된 지대치 수, 치태지수였고, 가철성 보철물의 경우 대합치였으며 임플란트 보철의 경우 임플란트 개수, 사용기간, 치태지수였다. 결론: 대한치과보철학회의 기준으로 보철물을 평가한 결과, 실패한 보철물의 평균수명은 고정성 11.41년, 가철성 8.18년, 그리고 임플란트 보철물은 7.99년이었다.

• 대한치과보철학회지
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• 제45권6호
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• pp.717-723
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• 2007

Statement of problem. Unreasonable distal cantilevered implant-supported prosthesis can mask functional problems of reconstruction temporarily, but it can cause serious strain and stress around its supported implant and surrounding alveolar bone. Purpose. The purpose of this study was to evaluate strain of implants supporting distal cantilevered fixed prosthesis with two different cantilevered length under distal cantilevered static load. Material and methods. A partially edentulous mandibular test model was fabricated with auto-polymerizing resin (POLYUROCK; Metalor technologies, Stuttgart, Swiss) and artificial denture teeth (Endura; Shofu inc., Kyoto, Japan). Two implants-supported 5-unit screw-retained cantilevered fixed prosthesis was made using standard methods with Type III gold alloy (Harmony C&B55; Ivoclar-vivadent, Liechtenstein, Germany) for superstructure and reinforced hard resin (Tescera; Ivoclar-vivadent, Liechtenstein, Germany) for occlusal material. Two strain gauges (KFG-1-120-C1-11L1M2R; KYOWA electronic instruments, Tokyo, Japan) were then attached to the mesial and the distal surface of each standard abutment with adhesive (M-bond 200; Tokuyama, Tokyo, Japan). Total four strain gauges were attached to test model and connected to dynamic signal conditioning strain amplifier (CTA1000; Curiotech inc., Paju, Korea). The stepped $20{\sim}100$ N in 25 N increments, cantilevered static load 8mm apart (Group I) or 16mm apart (Group II), were applied using digital push-pull gauge (Push-Pull Scale & Digital Force Gauge, Axis inc., Seoul, Korea). Each step was performed ten times and every strain signal was monitored and recorded. Results. In case of Group I, the strain values were surveyed by $80.7{\sim}353.8{\mu}m$ in Ch1, $7.5{\sim}47.9{\mu}m/m$ in Ch2, $45.7{\sim}278.6{\mu}m/m$ in Ch3 and $-212.2{\sim}718.7{\mu}m/m$ in Ch4 depending on increasing cantilevered static load. On the other hand, the strain values of Group II were surveyed by $149.9{\sim}612.8{\mu}m/m$ in Ch1, $26.0{\sim}168.5{\mu}m/m$ in Ch2, $114.3{\sim}632.3{\mu}m/m$ in Ch3, and $-323.2{\sim}-894.7{\mu}m/m$ in Ch4. Conclusion. A comparative statistical analysis using paired sample t-test about Group I Vs Group II under distal cantilevered load shows that there are statistical significant differences for all 4 channels (P<0.05).