Micro-CT evaluation of the presence of voids in endodontic obturation.

Unlabelled: Identifying the presence, size, type and location of voids in an endodontic obturation is of great clinical importance because it enables evaluation of the three-dimensionality of the sealing techniques, which can be related to the success of the endodontic treatment.

Aim: To analyze by micro-CT the presence of voids in lower single-rooted premolar root canal obturations prepared using the single cone and ultrasound vibration technique.

Materials And Methods: Twenty extracted single-rooted lower premolars were selected, and the root canal prepared surgically and chemically.

Efficacy of different instruments for the mechanical removal of the smear layer in immediate post preparations: a comparative study.

Adhesively cemented fiber-reinforced composite posts are commonly used to reconstruct endodontically treated teeth. Adhesion to intraradicular dentin is complex, and close contact between the resin cements and the dentin is essential. The removal of the smear layer following post space preparation (secondary smear layer) can improve this integration.