SEM evaluation of the interaction pattern between dentin and resin after cavity preparation using ER:YAG laser.

Objective: The aim of this study was to describe the interaction pattern formed between dentin and resin on cavities prepared with an erbium laser (Er:YAG). The morphological aspect of the irradiated dentin after acid etching was also observed.

Methods: Ten dentin disks were obtained from fresh extracted third molars.