자가부식형 상아질 접착제와 상아질과의 전단결합강도 비교
Comparison of the shear bond strength of self-etching dentin bonding agents to dentin
노수정, 김부섭, 정인성,
소속 상세정보
노수정 ( ) - 부산가톨릭대학교 보건과학대학원
김부섭 ( Kim Bu-Sob ) - 부산가톨릭대학교 보건과학대학 치기공학과
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120070290020141
Abstract
The purpose of this study was to ascertain the bonding durability of self-etching dentin bonding agents to dentin by means of shear bonding strength. Several acid-etching dentin bonding system (ESPE Z100) and self-etching dentin bonding systems (DEN-FIL, GRADIA DIRET) were used.
The occlusion surface of human molars were ground flat to expose dentin and treated with the etch bonding system according to manufactures instruction and followed by composite resin application.
After 24hours of storage at 37 , the shear bonding strength of the specimens was measured in a universal testing machine with a 1mm/min crosshead speed. An one-way analysis of variance and the scheffe test were performed to identify significant differences (p<0.05). The bonded interfacial surfaces and treated dentin surfaces were examined using a SEM. Through the analysis of shear bond strength data and micro-structures of dentin-resin interfaces, following results are obtained.
In dentin group, the shear bond strength of DEN-FIL showed statistical superiority in comparison to the other groups and followed by ESPE Z100 and GRADIA DIRECT (p<0.05).
키워드
Acid-etching;Self-etching;Dentin bonding agents;Shear bond strength;Microstructures.
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