테이퍼형 임플란트 고정체 파절: 증례보고 및 유한요소분석
Fracture of tapered body implant fixture: a case report and finite elements analysis
이희진, 김영균,
소속 상세정보
이희진 ( Lee Hee-Jin ) - 분당서울대학교병원 치과 구강악안면외과
김영균 ( Kim Young-Kyun ) - 분당서울대학교병원 치과 구강악안면외과
KMID : 1025720150340020035
Abstract
This study is a case report of the tapered implant fixture which developed 29 months after prosthetic loading. When bone resorption occurs more than 5 mm, the thickness, surface area and strength of the tapered fixture are reduced sharply. The shape deformation and damage of the fixture occur when the yield strength of this material reach at 85% level. Fatigue fracture of the implant can be caused by the implant connection type (external and internal connection), the shape of the implant (straight and taper) and bone absorption. It is very important to prevent the progressive bone loss through periodic maintenance care and to change the tapered fixture design and the length of the abutment screw.
키워드
Fracture; Implant; Finite element analysis
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