Shear bond characteristics of a tooth-colored temporary coating material to enamel

Abstract

PURPOSE: To evaluate the bonding performance of a coating material "White Coat" (Kuraray) to enamel. METHODS: Effect of surface treatment on bonding, durability of bonding, as well as re-bonding as a repeated treatment were investigated using extracted human incisors. To evaluate the effect of surface treatment, intact or ground enamel surfaces were treated using White Coat primer for 20 seconds or 40% phosphoric acid (K-etchant) for 10 or 60 seconds, as well as combination usage of White Coat primer and 40% phosphoric acid. Small resin cylinders of the base-coat of White Coat were bonded to the treated surfaces and irradiated for 30 seconds. For the durability test, small resin cylinders of..