The utilization of decision trees on orthopantomographic and lateral panoramic graphs for the diagnosis of unilateral anterior disc displacement of the temporomandibular joint

Abstract

Background Investigation is to utilize decision trees in conjunction with orthopantomography (OPT) and lateral panoramic graphy (LPG) to diagnose unilateral anterior disc displacement (ADD) of the temporomandibular joint. Methods Using MRI, OPT, and LPG imaging methods, 2 angles, and 3 linear measurements were made: antero-posterior angle (APA), superior-inferior angle (SIA), anterior joint space (AS) distance, superior joint space (SS) distance, and posterior joint (PS) space distance. The difference from each measurement was calculated to evaluate the obtained measurement data within each patient. Results In ADD patients, it was statistically significantly found that the APA increased while the SIA decreased for angle measurements. But for linear measurements, AS increased while the SS and PS decreased in MRI, OPT, and LPG Conclusion ADD can be diagnosed in OPT and LPG. The identification of the specific type of ADD that occurs in the temporomandibular joint is not feasible.