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NTIS 바로가기대한치과보철학회지 = The journal of Korean academy of prosthodontics, v.57 no.2, 2019년, pp.110 - 117
안종주 (부산대학교 치의학전문대학원 치과보철학교실) , 허중보 (부산대학교 치의학전문대학원 치과보철학교실) , 최재원 (부산대학교 치의학전문대학원 치과보철학교실)
Purpose: This study was to evaluate the wear resistance of 3D printed, milled, and conventionally cured provisional resin materials. Materials and methods: Four types of resin materials made with different methods were examined: Stereolithography apparatus (SLA) 3D printed resin (S3P), digital light...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
임시 보철물의 사용 목적은 무엇인가? | 임시 보철물은 삭제된 치아에 최종 보철물을 장착할 때까지 삭제된 치아에 가해지는 피해를 막기 위하여 사용된다.1,2 또한 임시 보철물은 치아의 이동 방지, 적절한 교합 관계 유지,2,3 치주조직 및 치수보호 그리고 최종 보철물이 구강내 장착되기 전까지 심미성을 제공한다. | |
Two-body 마모 시험은 무엇인가? | 26 마모도 시험을 위하여 2축으로 움직이는 chewing simulator를 이용하였으며 two-body 마모 실험으로 진행되었다. Two-body 마모 시험은 내마모성을 실험하는데 보편적으로 이용되며 치아와 대합되는 시편을 직접적으로 접촉시켜서 진행되는 마모실험이다.31 본 실험은 이전 연구에서 사용된 49 N의 힘을 저작력으로 설정하였고 저작운동과 동시에 인공적인 aging 효과와 마모 잔여물들이 시편에 잔류되는것을 막기 위하여 열순환(5°C/55°C)을 시행하였다. | |
임시 보철물의 제작 방법인 직접법과 간접법의 특징은 각각 무엇인가? | 전통적인 임시 보철물의 제작방법에는 직접법과 간접법이 있다.6 직접법은 chairside에서 환자의 구강 안에 직접 레진으로 수복하는 방법이며,7 간접법은 석고 모형상에서 레진을 경화시켜서 만드는 방법이다.3 직접법으로 제작된 임시 보철물은 제작 시간을 절약할 수 있으나, 구강 내에서 모든 작업이 이루어지기에 간접법으로 제작하는 것만큼 표면을 활택하게 할 수 없다는 단점이 있다. |
Takamizawa T, Barkmeier WW, Tsujimoto A, Scheidel D, Erickson RL, Latta MA, Miyazaki M. Mechanical properties and simulated wear of provisional resin materials. Oper Dent 2015;40:603-13.
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