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.