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J Korean Acad Pediatr Dent. 1998;25(2): 285-291.
A STUDY ON THE BOND STRENGTHS OF GLASS IONOMER CEMENT TO THE ZOE SURFACE TREATED DENTIN
정태성, 김경덕
부산대학교 치과대학 소아치과학교실
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ABSTRACT
The purpose of this study was to asses the shear bond strengths of 3 types of glass ionomer cement and 1 type of composite resin to dentinal surface with or without ZOE pretreatment. 80 extracted tooth specimens are divided into two groups; the control group (40 specimens) is not treated with ZOE and the other(40 specimens) is ZOE pretreated during 24 hours before bonding procedure. Shear bond strengths were measured with universal testing machine (Instron, Model 4301) and statistically processed by ANOVA and t-test. The results were as follows: 1. Bond strength of the ZOE treated experimental group showed lower than the control group, except chemical cured glass ionomer cement(p<0.05). 2. After ZOE surface treatment, the bond strength of composite resin was superior than glass ionomer cement and all experimental group was decreased (p<0.05). 3. It has nothing to do with ZOE surface treatment, that chemical curing glass ionomer cement was showed lowest bond strength.
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