Effect of Selective Etch on the Bond Strength of Composite to Enamel Using a XXXX Adhesive.

@entity8718 @entity11379 @entity11710 @entity16971 @entity291
UNASSIGNED: An improvement in bond strength to enamel has been demonstrated with the use of @entity8718 prior to bonding with self-etch @entity11379 -based adhesive agents. No research has evaluated the effect of @entity8718 etching of enamel with a newer self-etch @entity16971 adhesive. The purpose of this study was to evaluate the shear-bond strength of composite to enamel using the self-etch @entity16971 adhesive compared to other self-etching @entity11379 -based adhesives, with or without a separate application of @entity8718 . @entity291 incisors were sectioned using a @entity11710 saw and mounted in plastic pipe. The bonding agents were applied to flattened enamel surfaces with or without the application of 35% @entity8718 . The bonded tooth specimens were inserted beneath a mold, and composite was placed incrementally and light cured. The specimens were stored for 24 hours and six months in water and tested in shear. Data were analyzed with a three-way analysis of variance (ANOVA) to evaluate the effects of surface treatment, adhesive agent, or time on the bond strength of composite to @entity291 enamel (a=0.05). Significant differences were found between the groups based on surface treatment (p<0.01) or adhesive agent (p<0.01), but not on time (p=0.19), with no significant interactions (p>0.14). @entity8718 etching of @entity291 enamel significantly increased the bond strength of the self-etch @entity11379 and the @entity16971 adhesives. The @entity11379 -based adhesives had significantly greater bond strength to enamel than the @entity16971 adhesive.
