Assessment of Biomechanical Preparation Influence on Various Root Canal Curvatures.

Aim: To determine the influence of biomechanical preparation on various parameters of root canal curvature.

Materials And Methods: A total of 72 tooth roots with moderate (10-25°) and severe canal curvature (26-75°) were selected and embedded in autopolymerizing acrylic resin for which cone-beam computed tomography (CBCT) image analysis was performed. Schneider angle, canal access angle (CAA), and the radius of curvature were determined preoperatively using auto-computer-aided design (CAD) 2021 software.