Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur.
10.5395/JKACD.2011.36.6.477
- Author:
Jin Ho JEONG
1
;
Young Gon CHO
;
Myung Seon LEE
Author Information
1. Department of Conservative Dentistry, Chosun University School of Dentistry, Gwangju, Korea. ygcho@mail.ac.kr
- Publication Type:Original Article
- Keywords:
Bond strength;
Enamel;
Self-etching primer adhesive;
Type of bur
- MeSH:
Adhesives;
Dental Enamel;
Diamond;
Humans;
Methacrylates;
Molar;
Resin Cements
- From:Journal of Korean Academy of Conservative Dentistry
2011;36(6):477-482
- CountryRepublic of Korea
- Language:Korean
-
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 microm) diamond bur; Group 2, standard (106 - 125 microm) diamond bur; Group 3, fine (53 - 63 microm) diamond bur; Group 4, extrafine (20 - 30 microm) 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.
