대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제20권1호
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- Pages.25-32
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- 1982
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
도재전장관용 Coping과 수종 Core간의 시멘트 결합력에 관한 비교 연구
COMPARATIVE STUDY ON THE BOND STRENGTH OF CEMENTS BETWEEN PFM COPING AND VARIOUS CORES
- Paik, Sung-Ki (Dept. of Prosthodontics, Seoul National University) ;
- Chang, Wan-Shik (Dept. of Prosthodontics, Seoul National University)
- 발행 : 1982.12.01
초록
An in vitro study was conducted to compare the bond strength of cements between Verabond coping and various cores. Fifty-four idential cores simulating maxillary central incisor prepared for PFM crowns were made. Eighteen samples were made with 20K cast gold, eighteen with Verabond, and eighteen with Adaptic. Samples were randomly divided into three groups, each consisting of six 20K cast gold, six verabond, and six Adaptic samples. The first group was cemented with zinc phosphate cement, the second group with poly-carboxylate cement, and the third group with glass ionomer cement. Constant finger pressure was applied for cementation. The sample were then stored at
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