Interaction of different concentrations of 10-MDP and GPDM on the zirconia bonding.

Objectives: To analyze the influence of different concentrations of 10-MDP and GPDM used, combined or not, on the bonding to zirconia.

Methods: Specimens of zirconia and a resin-composite (7 mm length, 1 mm width, and 1 mm thick) were obtained. The experimental groups were obtained according to the functional monomer (10-MDP and GPDM) and the concentrations (3 %, 5 %, and 8 %).