유한요소해석을 통한 ITI Solid screw 임플랜트의 형상 특성이 골유착 단계에서 응력에 미치는 영향에 대한 연구
FINITE ELEMENT APPROACH TO INVESTIGATE THE INFLUENCE OF THE DESIGN CONFIGURATION OF THE ITI SOLID IMPLANT ON THE BONE STRESSES DURING THE OSSEOINTEGRATION PROCESS
차상범, 이규복, 조광헌,
소속 상세정보
차상범 ( Cha Sang-Bum ) - 경북대학교 치과대학 보철학교실
이규복 ( Lee Kyu-Bok ) - 경북대학교 치과대학 보철학교실
조광헌 ( Jo Kwang-Hun ) - 경북대학교 치과대학 보철학교실
KMID : 0362420060440020217
Abstract
Statement of problem: Standard type of ITI solid implant model in the 6.2mm thick jaw bone was axisymmetrically modelled for finite element stress analyses. Purpose: Primary objective was to investigate the influences or the characteristic design configuration of the ITI solid implant model on the bone stress with the course of osseointegration process at the bone/implant interfaces. To simulate the characteristics of the osseointegration process, five different stages of the bone/implant interface model were implemented. As load conditions, vertical load of 50N was taken into consideration. Bone at the cervical region of implant was the areas of concern where the higher level of stress were likely to take place.
Results: The results indicated that rather slightly different stress level could be obtained as a function of the osseointegration conditions.
Conclusion: Under vertical load, the lower level of stress was observed at the cervical cortical bone in the initial and final stages of osseointegration. Relatively higher stress level, however, was observed during the transitional stages where the osseointegration at the cancellous bone interface were yet to fully develop.
키워드
ITI solid implant;Osseointegration process;Axisymmetrical model
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