광중합형 복합레진 제조시의 압축강도에 관한 실험적 연구
A STUDY ON THE COMPRESSIVE STRENGTH OF EXPERIMENTAL LIGHT-ACTIVATED COMPOSITE RESINS
채민수, 추용호, 배태성,
소속 상세정보
채민수 ( Chae Min-Su ) - 전북대학교 치과대학 치과재료학교실
추용호 ( Chu Young-Ho ) - 전북대학교 공과대학 금속공학과
배태성 ( Bae Tae-Sung ) - 전북대학교 치과대학 치과재료학교실
KMID : 0362219950220020113
Abstract
This study was performed to elaluate the effect of matrix resins and fillers on the compressive strength of light-activated composite resins. Four different types of composites were made by mixing the inorganic fillers of armorphous spherical silica and crushed quartz with resins of BisGMA/TEGDMA and UTeMA/TEGDMA. The specimens of 3mm in diameter and 6mm in length were prepared. Compressive test was subjected to a crosshead speed of 0.5mm/min and fracture surfaces were examined by SEM.
The results obtained were summarized as follows;
1. Compressive strength of the UTeMA-based composite resin with spherical filler was superior to the other composite resins(p<0.01).
2. Compressive strength of the BisGMA-based composite resins with significantly decreased after immersion in water for 7 days(p<0.05).
3. UTeMA-based composite resins showed the aspect of decrease in compressive strength after cold storage at 5℃.
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원문 및 링크아웃 정보
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