[Diagnostic considerations of cone beam CT used in endodontics].

Cone beam CT (CBCT) has been widely used in endodontics in recent years. To promote the rational and effective application of CBCT in endodontics, this article introduces the principle of "As low as diagnostically acceptable being indication-oriented and patient-specific (ALADAIP)" for radiographic examination in endodontics. It summarizes and discusses key points of CBCT images evaluation in root canal anatomical variations, dens invaginatus, pulp calcification, odontogenic maxillary sinusitis, root fractures, periapical lesions, and post-endodontic treatment pain. Additionally, it explores how to dialectically use CBCT in evaluating root canal anatomical variations, pulp calcification and cracked tooth, and finally gives some tips about the scanning and three-dimensional reconstruction of CBCT in endodontics.