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치과용 골유착성 임플랜트 고정체 형상의 응력분석에 관한연구
Studies of osseointegrated implant-models on stress distriution

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Authors
한종현; 전흥재; 정신영; 허성주; 최용창; 정종평; 구영; 류인철; 김명호
Issue Date
2000
Publisher
대한치과보철학회
Citation
대한치과보철학회지 38:526-543, 2000
Abstract
Finite element analyses were performed to study effects on stress distribution generated in jaw bone for various shapes of dental implants: plateau type, plateau with small radius of curvature, triangular thread screw type in accordance with ISO regulations and square thread screw filleted with small radius partially. It was found that square thread screw filleted with small radius was more effective on stress distribution than other dental implants used in analyses. Additional analyses were performed on the implant with square thread screw filleted with small radius for very-ing design parameters, such as the width of thread end, the height of the thread of the implant and load direction, to determine the optimum dimensions of the implant. The highest stress concentration occurred at the region in jaw Pone adjacent to the first thread of the implant. The maximum effective stress induced by a 15 degree oblique load of 100 N was twice as high as the maximum effective stress caused by an equal amount of vertical load. Stress distribution was more effective in the case when the width of thread end and the height of thread were p/2 and 0.46p, respectively, where p is the pitch of thread. At last, using tensile force calculated from the possible insert torque without breading bone thread, finite element analysis was performed on the implant to calculate pre-stress when the primary fixation of the implant was operated in jaw bone. The maximum effective stress was 136.8 MPa which was proven to be safe.
ISSN
0301-2875
Language
Korean
URI
http://uci.or.kr/G100:I100-KOI(KISTI1.1003/JNL.JAKO200024718501772)

https://hdl.handle.net/10371/37727
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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