Restorative Dentistry and Endodontics
- 제5권1호
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- Pages.19-23
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- 1979
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
산처리(酸處理)된 치아표면(齒牙表面)에 대(對)한 복합(複合)레진 접착강도(接着强度)에 관(關)한 실험적(實驗的) 연구(硏究)
AN EXPERIMENTAL STUDY ON THE BONDING STRENGTH OF COMPOSITE RESINS TO ETCHED ENAMEL SURFACE WITH PHOSPHORIC ACID
- 박경정 (서울대학교 대학원 치의학과 보존학)
- Park, Kyung-Jung (Dept. of Operative Dentistry, Graduate School, Seoul National University)
- 발행 : 1979.12.31
초록
This experimental study was made to investigate the tensile strength of composite resins to etched enamel surface with a 50% phosphoric acid. Recently extraced 40 maxillary incisors were chosen. These were divied into 4 groups: Group I: Restodent adaptation to the etched enamel surface with 50% phosphoric acid. Group II: Restodent adaptation to only the ground enamel surface. Group III: Hi-pol adaptation to the etched enamel surface with 50% phosphoric acid. Group IV: Hi-pol adaptation to only the ground enamel surface. The results were as follows: 1. The tensile strength of Hi-pol showed much better results than that of Restodent. 2. Hi-pol and Restodent on the ground enamel surfaces showed little difference. 3. Adhesion to enamel increased on the average over 200% after a 50% phosphoric acid etch.
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