임프란트를 이용한 고정성 계속가공의치의 FRAMEWORK 형태에 관한 연구
A SUTDY ABOUT THE SHAPE OF THE FRAMEWORK OF THE FIXED BONE ANCHORED BRIDGE USING DENTAL IMPLANTS
김태균, 이영수, 유광희,
소속 상세정보
김태균 ( Kim Te-Gyun ) - 한양대학교 의과대학 치과학교실
이영수 ( Lee Young-Soo ) - 한양대학교 의과대학 치과학교실
유광희 ( Yoo Kwang-Hee ) - 한양대학교 의과대학 치과학교실
KMID : 0362419980360010104
Abstract
The purpose of this study was pertinent design of the framework of the fixed bone anchored bridge using implants in the edentulous mandible through analysis of stress distribution by the three dimensional finite element analysis method. The results were as follows: 1. The L-shaped framework was favorable in restoring the edentulous mandible by implants and fixed bone anchored bridge. 2. The structure of the framework should be designed to endure the occlusal load because of stress concentration at the most distal abutment of the framework. 3. The stress at the distal implant where cantilever starts was twice as much as that of other portions. 4. Compressive stress was generated on the framework of the mesial side of the distal implant and extrusive force was induced to the mesially positioned implants. 5. The height of vertical plate was high as possible as can be to distribute stresses concentrating bucco-lingually and labio-lingually in the framework between abutments, 6. Reinforcement of the horizontal plate thickness was needed because stress was loaded more on the horizontal plate than on the vertical plate of the framework. 7. Lengthening of the vertical plate can compensate for any limitations in horizontal plate width.
키워드
Dental implant; Edentulous mandible; Fixed bone anchored bridge; Framework; Three tensional finite element analysis
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