수종의 임플랜트 시스템에 따른 유한요소법적 응력분석에 관한 연구
A STUDY ON THE VARIOUS IMPLANT SYSTEMS USING THE FINITE ELEMENT STRESS ANALYSIS
유성현, 박원희, 이영수, 박주진,
소속 상세정보
유성현 ( Yu Seong-Hyun ) - 한양대학교 의과대학 치과학교실
박원희 ( Park Won-Hee ) - 한양대학교 의과대학 치과학교실
이영수 ( Lee Young-Soo ) - 한양대학교 의과대학 치과학교실
박주진 ( Park Ju-Jin ) - 한양대학교 의과대학 치과학교실
KMID : 0362420060440020207
Abstract
Statement of Problem: To conduct a successful function of implant prosthesis in oral cavity for a long time, it is important that not only structure materials must have the biocompatibility, but also the prosthesis must be designed for the stress, which is occurred in occlusion, to scatter adequately within the limitation of alveolar bone around implant and bio-capacity of load support. Now implant which is used in clinical part has a very various shapes, recently the fixture that has tapered form of internal connection is often selected. However the stress analysis of fixtures still requires more studies.
Purpose: The purpose of this study is to stress analysis of the implant prosthesis according to the different implant systems using finite element method.
Material and methods: This study we make the finite element models that three type implant fixture ; Branemark, Camlog, Frialit-2 were placed in the area of mandibular first premolar and prosthesis fabricated, which we compared with stress distribution using the finite element analysis under two loading condition.
Conclusion: The conclusions were as follows: 1. In all implant system, oblique loading of maximum Von mises stress of implant, alveolar bone and crown is higher than vertical loading of those. 2. Regardless of loading conditions and the type of system. cortical bone which contacts with implant fixture top area has high stress, and cancellous bone has a little stress. 3. Under the vertical loading, maximum Von mises stress of Branemark system with external connection type and tapered form is lower than Camlog and Frialit-2 system with internal connection type and tapered form, but under oblique loading Camlog and Frialit-2 system is lower than Branemark system.
키워드
Implant prosthesis;Fixture shape;Abutment connection type;Finite element stress analysis;Von mises stress
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