The importance of evaluating the transverse cant of the occlusal plane in intraoral photographs

Abstract

Background: Some investigators argue that the occlusal plane (OP) should be positioned horizontally in intraoral photographs. The actual OP, however, may feature nonhorizontal inclinations. This study aimed to determine whether nonhorizontal OP inclinations in the transverse direction, which tend to compromise esthetics, may lead to misdiagnosis. Results: Nonhorizontal OP inclinations, especially those in the transverse direction, may lead to misdiagnosis. Conclusions: To circumvent this problem the authors suggest that intraoral photographs be taken encompassing the patient's eyes. By applying this method, the interpupillary line serves as both a reference and a means of evaluating transversal OP. © 2014 World Federation of Orthodontists.