Effects of prophylactic agents on shear bond strength of resin composite bonding to enamel
Garcia-Godoy, F.; O'Quinn, J.A.
General Dentistry 41(6): 557-559
1993
ISSN/ISBN: 0363-6771 PMID: 23087954 Document Number: 413560
In this study, the effect of different tooth cleansing methods on shear bond strength of resin composite bonding to enamel was evaluated. The buccal enamel surface of 45 noncarious permanent molars was ground flat to provide a uniform surface to which composite was applied. Care was taken to avoid dentin exposure in this procedure. The teeth were divided randomly into 3 groups of 15 teeth. Group 1 was treated with prophylaxis with a rubber cup and pumice, Group 2 with prophylaxis with a rubber cup and nonfluoridated paste, and Group 3 with prophylaxis with a rubber cup and fluoridated paste. After thermocycling, the samples were sheared in the Instron. Results, in MPa, were: Group 1: 14.70 +/- 4.44, Group 2:15.82 +/- 2.70, and Group 3: 16.41 +/- 5.93. Analysis of variance showed no difference among the three groups.