Abstract
The present study evaluates the impact of 2% chlorhexidine (CHX) on bond strength of self-adhesive dual-cure resin cement. In the current in vitro study, 40 freshly extracted human sound premolar teeth were selected. Cavity preparations were performed and the teeth were divided into 4 groups (n =10). Group 1:1 mm cavity without 2% CHX; Group 2:1 mm cavity with 2% CHX; Group 3:3 mm cavity without 2% CHX; and Group 4:3 mm cavity with 2% CHX. In all groups, self-adhesive was added. The shear bond strength (SBS) of all the groups was statistically assessed. Comparison of mean maximum load among different groups showed significant difference (p < 0.05). Similarly, shear bond strength differed significantly between 3 mm without CHX group and 1 mm without CHX group (p < 0.05) and the mean difference of load differed significantly among 3 mm without CHX group and 1 mm with CHX group (p < 0.05). Although, there appears to be an influence of 2% CHX on shear bond strength and maximum load, however more studies are necessary to explore the effect of 2% CHX along with self-adhesive on shear bond strength.
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