• 대한치과보철학회지
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• 제33권1호
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• pp.130-143
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• 1995

The purpose of this study was to analyze the magnitude and distribution of stress using photoelastic model with the rigid connection using T-block attachment and non-rigid connection using key & keyway attachment. The vertical load of 16 Kg was applied on the central fossa of the tooth, the pontic and the implant, and the pattern and distribution under each condition was analyzed. The following results were obtained : 1. In case of vertical load on the central fossa of the implant, the stress was concentrated at the apex of the implant involving the mesial alveolar bone in both fixed partial denture with the rigid connection and that with the nonrigid connection and the stress concentration at the mesial cervical area of the implant was a little more in the nonrigid connection than in the rigid connection. 2. In case of vertical load on the central fossa of the pontic, the stress was concentrated at the apex of 2nd bicuspid in both 3 unit fixed partial denture with nonrigid connection and that with the rigid connection. The stress was more concentrated at the mesial alveolar bone of the implant, but the stress distribution at the natural teeth more favorable at the rigid connection than at the non-rigid connection in case of 4 unit fixed partial denture. 3. In case of vertical load of the central fossa of the 2nd bicuspid, much stress with 3 fringe order was observed at the apex of the 2nd bicuspid in the 3 unit fixed partial denture, but relatively even stress distribution was observed at the apex of the implant, the 1st and 2nd bicuspid, and the adjacent cuspid in the 4 unit fixed partial denture.

• 대한치과보철학회지
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• 제56권4호
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• pp.323-329
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• 2018

후방 무치악 부위를 수복하는데 있어서 선택할 수 있는 전통적인 치료방법으로는 가철성 국소의치와 임플란트 고정성 보철물이 있다. 최근, 환자의 전신 건강과 심미적 요구사항, 치료 비용, 잔존 치조골 상태 등을 고려하여, 두가지 치료가 결합된 임플란트 융합 국소의치(implant assisted RPD)개념이 이용되고 있다. 임플란트 융합 국소의치는 치조골 결손부가 큰 경우나, 생역학적으로 불리한 경우에 전통적인 가철성 국소의치보다 유지력과 안정성을 증진시킬 수 있으며 심미적이라는 장점이 있다. 또한 치조골 양이 상대적으로 많은 부위에 전략적으로 임플란트를 식립하여 전통적인 국소의치 디자인의 한계를 개선할 수 있을 뿐 아니라, 다수의 임플란트 식립을 통한 고정성 보철물에 비해 환자의 수술 부담을 줄여줄 수 있으며, 비용 절감 효과도 기대할 수 있다. 본 증례의 환자는 하악 양측 소구치부에 단일 임플란트를 식립하여, 임플란트 고정성 보철물을 지대치로 하는 양측성 후방연장 국소의치를 제작하여 치료를 진행하였다. 최종 보철물 장착 후 환자는 저작 기능 및 심미에 대해 만족도를 나타내었다. 이후 1년 이상 주기적인 관찰을 통해 예후를 관찰 중이다. 하악 부분 무치악 환자에서 임플란트를 이용한 가철성 국소의치 수복을 통해 증진된 지지와 안정을 얻었기에 이를 보고하는 바이다.

• Journal of Korean Dental Science
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• 제15권1호
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• pp.75-83
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• 2022

Crown-type implant-assisted removable partial dentures (CIRPDs) can be a feasible treatment option for partially edentulous patients. Here we report a case with remaining unilateral mandibular teeth. Two implants were placed in the posterior portion of the mandible using a surgical guide, and a distal-extension removable partial denture with implant-supported surveyed crowns was fabricated. After 12 months, both the abutment teeth and implants were in good condition. The treatment outcomes were satisfactory in terms of masticatory function and esthetics. The advantages of CIRPDs and considerations for obtaining successful clinical outcomes with these dentures are also discussed.

• 대한치과보철학회지
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• 제9권1호
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• pp.17-22
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• 1969

Intra-oral films of 155 patients were taken on the areas of Gold Crown-Bridges, S. P. Bridges and Partial Dentures. And the author observed periodontal ligaments widening rates, the presence of periapical lesions and the alveolar bone patterns on the Partial Denture Saddle portions. The results were as follows : 1. Periodontal ligaments a) Periodontal ligaments widening rate increased obviously with the duration of wearing those prosthetic appliances. b) Periodontal ligaments widening rate was the highest in partial denture wearing patients, and then that of S. P. Crown Bridge patients, Gold Crown Bridge wearing females, Gold Crown Bridge males were the sequences. 2. Periapical lesions a) Periapical lesions increased with the wearing duration of those prosthetic appliances. But they did not increase in proportion to the duration. Periapical lesions were about the same in the teeth with those appliances showing relatively higher rate in Partial Denture abutment teeth and the lowest in Gold-Bridge abutment teeth. 3. Alveolar bone of Partial Denture saddle portion One third of all(32%) were normal with their smooth and compact bone pattern so that they were considered to perform normal function.

• 구강회복응용과학지
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• 제30권1호
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• pp.45-52
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• 2014

진단과 치료계획의 수립은 건강한 구강조직을 유지하고 구강 내에서 잘 기능하는 국소의치 제작을 위한 치료의 시작이며 치료예후를 좌우하는 매우 중요한 요소이다. 국소의치 환자들은 잔존치아의 수나 결손부의 위치, 교합상태, 구강조직의 건강 상태 등 여러 요소에 의해 환자마다 다양한 구강 조건을 가지고 있으므로, 각각의 환자에 맞는 국소의치 제작을 위해서는 진단과 치료계획을 수립하는 단계에서 충분한 정보를 취득하는 과정이 필요하다. 특히, 방사선 사진이나 진단모형의 분석을 통해 국소의치의 지대치를 선정하고 모형의 써베잉을 시행하여 구강형성여부와 보철물의 생역학적 설계를 결정하는 것은 성공적인 국소의치 치료를 위한 필수요건이므로 이러한 과정을 이해하고 임상적으로 적용할 수 있어야 한다.

• 구강회복응용과학지
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• 제30권2호
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• pp.152-158
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• 2014

저작기능의 회복과 더불어 환자에게 편안함을 제공하며 잔존치아와 치조점막을 건강하게 유지할 수 있는 가철성 국소의치 제작을 위해서는 구강내의 형태적, 기능적 상태를 재현하는 모형제작이 필수적이다. 국소의치 제작을 위해서는 진단모형과 주모형의 제작이 필요하며 이를 위해서 예비인상과 최종인상 채득 과정을 거치게 된다. 국소의치의 인상채득은 고정성이나 총의치 인상과 다르게 치아부위와 조직부위 모두가 잘 인기되어야 하고 치아 결손 부위에 따라 교합을 지지하는 부위가 달라지므로 증례에 따른 적절한 인상재와 인상채득 방법에 대한 이해를 바탕으로 정확한 임상적 적용이 요구된다.

• 대한치과의사협회지
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• 제49권6호
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• pp.334-339
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• 2011

The purpose of this study was to investigate the oral health condition and dental treatment need of low socioeconomic elderly people. A total of 116 elderly people who visited Boramae Hospital were evaluated with oral examination and panoramic radiogaph. The results showed that the most expecting treatment of low income aged people was removable partial denture. It was very clear in the age group of 70-84. In the age group under 70, most of the patients wanted prosthodontic tratement using fixed partial denture or crown. As the result of this study, elderly people with low socioeconomic status under age 85 needed removable partial denture or fixed prosthesis than complete denture. It is necessary to develop a more expanding and customized Senile prosthetic restoration program.

• 대한치과기공학회지
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• 제40권4호
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• pp.239-247
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• 2018

Purpose: The purpose of this study was to investigate the denture attachment status and the denture need of elderly Koreans and to provide basic data for improving the quality of life by developing methods and education programs for the oral health of the elderly. Methods: This study selected 4,340 persons who completed questionnaires and oral examinations among elderly people aged 65 or older only from the National Health and Nutrition Examination Survey data of the 6th period (2013-2015). Results: There was a significant relationship between age, residence, and education level in complete dentures. There was a significant relationship between gender, age, residence, and education level in the partial denture wearing state. In the complete denture need, there was a significant relationship with age. The need for partial denture was found to be significant in gender, age, and residence. Conclusion : Based on the results of this study, it can be used as basic data for oral health education and dental prosthesis related to denture which can improve oral health of the elderly in the future.

• 보건행정학회지
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• 제25권2호
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• pp.107-117
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• 2015

Background: The purpose of this study is to analyze the cost for the denture treatment in accordance with the government's plan to expand the National Health Insurance coverage for dental prothesis from July 1, 2012. Methods: We developed the draft of classification of the treatment activities based on the existing researches and expert's review and finalized the standard procedures through confirming by Korean Dental Association. We also made the list of input at each stage of treatments. We conducted survey of 100 dental clinics via post from April 4 to May 20 in 2011 and 37 clinics took part in the survey. The unit of cost calculation is the process from the first visit for denture treatment to setting of denture and adjustment. The manufacturing process performed by dental technician was not included in the cost analysis. Results: The process for the complete denture treatment was classified with 10 stages. The partial denture treatment was classified with 8 stages. The treatment time per each denture is about 5.6 hours for complete dentures and about 6.6 hours for partial dentures. The treatment cost were from 591,108 won to 643,913 won for complete denture and from 670,219 won to 738,840 won for partial denture in 2011, depending on the location, type of the clinics and the types of physician's income. Conclusion: This study shows the example of cost analysis for the treatment to set the fee schedule. Measures to get representative and accurate information need to be made.

• 대한치과보철학회지
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• 제60권4호
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• pp.347-353
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• 2022

상악 완전 무치악과 하악 양측 후방 무치악 상태의 환자에서 전통적인 의치를 제작하는 방법은 흔히 볼수 있는 치료 방법이다. 그러나 장기적으로 볼 때 이와 같은 구강내 환경에서는 복합증후군(Combination syndrome)이라는 합병증이 발생할 수 있다. 이때 임플란트를 동반한 국소의치(Implant Assisted Removable Partial Denture, IARPD)의 적용으로 치조골 보존과 함께 Combination syndrome의 예방을 도모할 수 있다. 본 증례에서는 무치악 부위에 임플란트의 추가 식립 시 국소의치의 움직임에 의해 최후방 지대치에 가해지는 응력을 줄일 수 있으므로 금속이 아닌 레진 클라스프를 계획하였고 flexible 의치 레진을 사용하였다. 상악 총의치, 하악 flexible IARPD를 계획하여 최소한의 비용과 수술로서 심미적, 기능적인 장기적 예후를 얻어 보고하고자 한다.