Curvatura radicular de primeros premolares mandibulares en tomografía computarizada de haz cónico (CBCT)

Abstract

Objective: The objective of the present study was to determine the degree of angulation and root orientation of the first mandibular premolar in cone beam computed tomography (CBCT). Methods: The sample consisted of 111 mandibular first premolars of 67 tomographic studies from the archives of the Faculty of Dentistry of the University of Cuenca (August 2015-October 2016) and the Medimagen Radiological Center (March-October 2016); the software One Volume Viewer (J. Morita Corporation, Irvine, California, USA) and Galileos Implant (Sirona The Dental Company; Earlangen Germany) were used to perform sagittal and coronal sections of the 3D image that served to observe the orientation of the root curvature and also allowed to measure the angle with the Schneider method. Results: The average angle of curvature was 16.03 °. The curvatures were classified as: mild = 0.1 ° -12.2 °; moderate = 12.3 ° -17.2 °; severe = 17.3 ° -40.5 °, those roots that did not form an angle were included as straight. Conclusion: In the study sample the moderate curvature was the most prevalent and the orientation was in the distal direction