Influence of an Audiovisual Resource on the Preoperative Anxiety of Adult Endodontic Patients: A Randomized Controlled Clinical Trial.

Introduction: The expectation of undergoing endodontic treatment can cause anxiety in patients. Anxiety is described as a transient emotional state closely related to pain, fear, and imbalance of the organism. The clinician commonly must use some type of tool to alleviate the patient's preoperative anxiety before treatment can be applied.

Influence of coronal restoration and root canal filling quality on periapical status: clinical and radiographic evaluation.

Introduction: The purpose of this study was to evaluate the relationship between periapical status and the quality of coronal restoration and of root canal filling, assessed both clinically and radiographically, in a cohort of Brazilian patients.

Methods: A total of 523 teeth from 337 patients submitted to endodontic treatment were clinically and radiographically reexamined 2-10 years postoperatively. Restoration and root canal filling quality were classified according to modified criteria from Tronstad et al.