Influence of organic acids present in oral biofilm on the durability of the repair bond strength, sorption and solubility of resin composites.

Purpose: To evaluate the repair bond strength after storage in water, lactic and propionic acid after 7 days and 6 months and the sorption and solubility of resin composites used.

Methods: Five cylinders of each resin composite (microhybrid, nanofilled and silorane-based composite) were prepared. Specimens were aged with thermocycling (5 and 55°C) 5,000 times.