임플랜트지지 overdenture응 clip의 유지력 변화에 관한 연구
A STUDY ON THE CHANGES IN RETENTION OF CLIPS USED TO RETAIN IMPLANT-SUPPORTED OVERDENTURE
여동헌, 임주환, 조인호,
소속 상세정보
여동헌 ( Yeo Dong-Heon ) - 단국대학교 치과대학 치과보철학교실
임주환 ( Lim Ju-Hwan ) - 단국대학교 치과대학 치과보철학교실
조인호 ( Cho In-Ho ) - 단국대학교 치과대학 치과보철학교실
KMID : 0362419980360040566
Abstract
Implant-supported overdenture is known as a useful appliance, instead of using the conventional complete denture, for better retention and stability. In this study 4 types of materials such as, gold bar/plastic clip(group AuP), gold bar/metal clip(group AuM), palladium bar/plastic clip(group PdP), and palladium bar/metal clip(group PdM) were used to evaluate the retention forces according to the type of clips and alloys used for bar fabrication, in the Hader bar system. Repeated insertions and removals of overdenture were conducted in each group, and the retention forces were measured and compared the data of each group according to the number of insertion and removal. The obtained results were as follows, 1. In the comparison of retention forces according to type of bar-clip, retention was increased in the order of group AuM, PdM, PdP, AuP, and the retention force of group AuM was significantly increased compared with those of others(p<0.05). 2. In the comparison of retention forces according to the number of insertion, only group PdP showed significant decrease in retention(p<0.05). 3. In the comparison of retention forces according to the type of bar and clip, there was no significant difference in the type of bar, but the retention of plastic clip was significantly higher than that of metal clip when Au bar was used(p<0.05). 4. In the observation of the bar surface, group AuM using Au bar and metal clip showed the most scratches among bar groups.
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