Comparative evaluation of the effect of different disinfecting agents on bond strength of composite resin to dentin using two-step self-etch and etch and rinse bonding systems: An in-vitro study.

UNASSIGNED

This study was carried out to examine the effect of the application of different disinfecting agents on the shear bond strength (SBS) of an etch-and-rinse system.

UNASSIGNED

A total of 120 dentin surfaces of human molars were taken. Sixty samples were taken for immediate (testing was done after 24 h) and delayed (testing was done after 6 months) each. Further, they were divided into three subgroups (n = 20) according to the disinfectant used: Group I: control (no disinfectant); Group II: chlorhexidine based; and Group III: Aloe barbadensis miller (Aloe vera) based. Dentine bonding agent was applied, and resin composite build-ups were done for SBS testing. Samples were examined under scanning electron microscope for observing the gap formation for dentin-restoration interface. SBS results were statistically analyzed.

UNASSIGNED

The results of the study showed that both chlorhexidine and aloe vera had improved bond strength as compared to the control group both for immediate and delayed SBSs.

UNASSIGNED

Thus, aloe vera can be used as an alternative to chlorhexidine for cavity disinfection.