In-Ceram Alumina Bridge Restoration의 단기예후에 관한 임상적연구
THE CLINICAL STUDY ON SHORT TERM PROGNOSIS OF IN-CERAM ALUMINA BRIDGE RESTORATION
조병완, 박재범, 안재진,
소속 상세정보
조병완 ( Jo Byung-Woan ) - 대구파티마병원 치과
박재범 ( Park Jae-Bum ) - 대구파티마병원 치과
안재진 ( Ahn Jae-Jin ) - 대구파티마병원 치과
KMID : 0362419970350030544
Abstract
All ceramic restorations except In-Ceram Alumina system gave a good esthetics and an exellent marginal fidelity. The flexural strength of them had about 150MPa, so the indication is only single crown. By using In-ceram Alumina System(450MPa), it is thought to be possible to construct bridge for its high flexural strength. But the prognosis is unclear. The purposes of this study are to clear short term prognosis of In-Ceram bridge restorations, to elucidate its clinical significance. Among 22 In-Ceram Bridge restored in our department, 11 In-Ceram bridges with follow up were used. The period of placement is from 1 to 18 months. The results were as follow : 1. Among follow up 11 bridges, 2 bridges were fractured. One is 4 unit in maxillary lateral incisors, the other is 3 unit bridge in maxillary canine and premolar. Including 11 bridge without follow up, failure rate is very low(2/22). 2. The fracture sites are connector areas between abutment and pontic. To maintain In-Ceram bridge for long term period, it is needed to remove the nonphysiologic occlusal force and to have sufficient thickness of alumina core. For estabilishing clinical use of In-Ceram bridges, it is thought to need clinical research during long term period.
키워드
In-Ceram Bridge Restoration;Prognosis;Fracture Site;Connector
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