EVALUATION OF SHEAR BOND STRENGTH OF COMPOSITE TO DENTIN REWETTED WITH A DESENSITIZER: AN IN-VITRO STUDY

Аннотация

This in-vitro study aimed to evaluate the shear bond strength of composite resin to dentin after rewetting with a desensitizer. The study involved 60 extracted human molars, which were randomly divided into three groups: Group A (control) without desensitizer treatment, Group B with desensitizer treatment followed by rewetting, and Group C with desensitizer treatment without rewetting. The dentin surfaces were prepared and treated according to the assigned group. Composite resin cylinders were bonded to the dentin surfaces, and shear bond strength testing was performed using a universal testing machine. The results revealed that Group B, which underwent desensitizer treatment followed by rewetting, exhibited significantly higher shear bond strength compared to Group A (control) and Group C (desensitizer treatment without rewetting). These findings suggest that rewetting dentin treated with a desensitizer enhances the shear bond strength of composite resin, potentially improving the long-term success of restorative dental procedures. KEYWORDS Shear bond strength, composite resin, dentin, desensitizer, rewetting, in-vitro study.