Shear bond strength of brackets bonded with different self etching primers.
- Author:
Jin Young YANG
1
;
Min Ji KIM
;
Yong Kyu LIM
;
Dong Yul LEE
Author Information
1. Department of Orthodontics, Graduate School of Clinical Dentistry, Korea University, Seoul, Korea. dong09@kumc.or.kr
- Publication Type:Original Article
- Keywords:
Self etching primer;
Shear bond strength;
Adhesive remnant index
- MeSH:
Adhesives;
Bicuspid;
Orthodontic Brackets;
Tooth
- From:Korean Journal of Orthodontics
2007;37(4):283-292
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The purpose of this study was to evaluate the clinical usefulness of 4 self etching primers by measuring the shear bond strength of orthodontic brackets and examining the failure pattern of bracket-tooth interfaces. METHODS: Seventy-five, defect-free, premolars were randomly assigned into five groups: control group (37% phosphoric acid + Transbond XT primer) and self etching primer treated groups (Transbond Plus self etching primer, Unifil bond, Clearfil SE bond, and Adhese). The shear bond strength was measured with a universal testing machine and the amount of residual adhesive remaining on the brackets after debonding was assessed by the adhesive remnant index (ARI). RESULTS: The results showed that the groups conditioned with self etching primer had significantly lower shear bond strength than the control group (p < 0.05), although clinically acceptable. However, there were no significant differences in shear bond strength among the self etching primer groups (p > 0.05). Evaluation of the ARI scores indicated there was less resin remnant on the teeth in the groups conditioned with self etching primers, although not statistically significant. CONCLUSION: The results of this study suggest that all four of the self etching primers have shown acceptable bond strength for clinical use.
