Comparative study on bilateral temporomandibular joint of patients with unilateral multiple symptoms in cone-beam computed tomography

Abstract

Abstract: PURPOSE: To investigate bilateral temporomandibular joint of patients with unilateral multiple symptoms in cone-beam computed tomography (CBCT) and explore the reference planes that may be different,providing reference for the diagnosis of temporomandibular disorders and comparative study. METHODS： 50 cases with unilateral multiple symptoms（except for cases with unilateral single symptom）were examined by CBCT and the following indexes were observed and analyzed,including horizontal angles of the cross-sectional condyle after the reconstruction in the same patient, joint space, macroaxis diameter of condyle and vertical angles of condyle, which were commonly used at oblique position parallelled to the long axis of condyle, the gradient of articular tubercle and the joint space,which could be obtained at sagittal and oblique position vertical to the long axis of condyle.The data obtained was analyzed by paired t test with SPSS13.0 software package. RESULTS: There was significant difference between the bilateral measured value of joint space when the angle was 60° in sagittal plane (P<0.05).The difference was more significant when the angle was 120° in parallel plane and 90° in sagittal plane(P<0.01). The other measured parameters were not significant different. CONCLUSIONS: For patients with TMD, it is more easily to observe differences between the bilateral measured value of joint space in the sagittal or vertical plane,where the increase of the front joint space can be seen and construction was more significant.

Key words: Temporomandibular disorders, Temporomandibular joint, Cone-beam computed tomography

CLC Number:

R782.6

HAN Yi-shi, LI Yan-feng，LV Yuan，GUO Xiao-qian，LIU Bin，LIU Yan，HAN Wei-li，HU Min，LIU Hong-chen.. Comparative study on bilateral temporomandibular joint of patients with unilateral multiple symptoms in cone-beam computed tomography[J]. Shanghai Journal of Stomatology, 2016, 25(1): 108-111.

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