임프란트 경부 주위 지지골의 퇴축 단계별 응력분포 해석
A Finite Element Stress Analysis of the Bone around implant following Cervical Bone Resorption
권경윤, 최재갑, 김귀애,
소속 상세정보
권경윤 ( ) - 경북대학교 치과대학 보철학교실
최재갑 ( ) - 경북대학교 치과대학 보철학교실
김귀애 ( ) - 경북대학교 치과대학 보철학교실
KMID : 0362820030220010038
Abstract
To analyze the distributions of stresses in the bone around the standard implant (3.75mm x 10mm, 3i Co., USA) due to the vertical occiusal load, it was axisymmertrically modelled 4 different models for finite element stress analysis - 0.0mm, 0.6mm, 1.1mm, and 1.7mm bone resorption in the cervical area of the implant.
After applied 50N vertical occlusal force to models respectively, the 4models were analyzed.
The results obtained were followings;
- In the model I (0.0 mm bone resorption in cervical area of implant) and Ii (0.6mm bone resorption in cervical area of Implant), highest stresses (5MPa <) were concentrated in cervical area of implant, and in the model III (1.1 mm bone resorption in cervical area of implant), highest stress (3.5 MPa) was concentrated in cervical area of implant, and in the model IV(1.7 mm bone resorption in cervical area of implant), highest stress (2.5MPa) was concentrated in alveolar bone crest. The peak stress in cervicalbone of implant was decreased following bone resorption.
- In all 4 models, the stress was low in the bone around implant except cervical area of implant irrelevant to the degree of bone resorption.
- The location of stress peak moved from the first bone/implant contact to.-the ah-eolar crest following bone resorption in cervical area of implant.
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