Abstract

Info

Title:: Magnetic resonance imaging findings in patients with temporomandibular joint anterior disc displacement with reduction

Author(s):: YU Huangjun; Department of Radiology, Minzu Hospital of Guangxi Zhuang Autonomous Region, Nanning 530001, China

Keywords:: Keywords: temporomandibular joint anterior disc displacement with reduction magnetic resonance imaging disease severity

Abstract:: Abstract: Objective To study the magnetic resonance (MR) imaging findings in patients with temporomandibular joint (TMJ) anterior disc displacement with reduction (ADDWR). Methods Fifty-five patients with TMJ ADDWR were included as observation group, and another 30 healthy volunteers with orderly teeth arrangement were selected as control group. All subjects underwent MR imaging. The degrees of anterior disc displacement in patients with TMJ ADDWR were recorded. The articular disc morphology and joint effusion of patients with TMJ ADDWR of different severity were compared. Results There were 35 mild cases and 20 severe cases among 55 patients with TMJ ADDWR. The morphological classification of articular disc was obviously different among control group, mild group and severe group, with statistical differences (P<0.05). Significant differences were found in TMJ effusion, visual analogue scale score and the length of articular disc among 3 groups (P<0.05). The anterior disc displacement in mild group was significantly less than that in severe group, with statistical differences (P<0.05). Conclusion MR is helpful to the judge the condition of patients with TMJ ADDWR, thereby providing a basis for clinical treatment.