삭제기구의 종류에 따른 자가부식 프라이머 접착제의 법랑질에 대한 미세전단 결합강도
Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur
정진호, 조영곤, 이명선,
소속 상세정보
정진호 ( Jeong Jin-Ho ) - 조선대학교 치과대학 치과보존학교실
조영곤 ( Cho Young-Gon ) - 조선대학교 치과대학 치과보존학교실
이명선 ( Lee Myung-Seon ) - 서영대학교 치위생과
KMID : 0362320110360060477
Abstract
Objectives:The purpose of this study was to compare the microshear bond strength (uSBS) to enamel prepared with different burs and to determine what type of bur were chosen when a self-etching primer adhesive was used
Materials and Methods:Enamel of forty-two human molars were used. They were divided into one of six groups (n = 7), Group 1, coarse (125 - 150 μm) diamond bur; Group 2, standard (106 - 125 μm) diamond bur; Group 3, fine (53 - 63 μm) diamond bur; Group 4, extrafine (20 - 30 μm) diamond bur; Group 5, plain-cut carbide bur (no. 245); Group 6, cross-cut carbide bur (no. 557). Clearfil SE Bond and Clearfil AP-X (Kuraray Medical Inc.) was bonded to enamel surface. The bonded specimens were subjected to uSBS testing
Results:The uSBS of Group 4 was the highest among groups and it was significantly higher than that of Groups 1, 2, 3, and 6 (p < 0.05), but it was not significantly different from that of Group 5.
Conclusions:Different burs used on enamel surface affected the microshear bond strengths of a self-etching primer adhesive to the enamel surface. In the case of Clearfil SE Bond, extrafine diamond and plain-cut carbide bur are recommended for bonding to enamel.
키워드
Bond strength; Enamel; Self-etching primer adhesive; Type of bur
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