Effect of Interval Time between Corrosive and Abrasive Challenges on a Nanoparticulate Composite Resin.

Objective: This study aimed to evaluate the effect of interval time after acidic beverage intake and brushing on roughness and hardness of resin composite.

Materials And Methods: Nanofilled resin composites were tested as per interval time (no interval, 15 or 30 minutes) between aging media (isotonic, sports drink) and brushing. Specimens ( = 9) were subjected to three cycles daily for 5 days with immersion in beverage followed by simulated brushing (585 strokes).