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目的:评估第三磨牙拔除术与可复性颞下颌关节盘前移位的发病率的相关性。方法:随机选取197例可复性关节盘前移位(anterior disk displacement with reduction,ADDwR)的患者作为病例组,985例口腔科门诊就诊患者作为对照组,采用病例对照法,电话问卷调查比较两组患者第三磨牙拔除情况。结果:ADDwR并未表现出与病例组更明确的相关性,比值比(OR)为1.24,95%置信区间(CI):0.91-1.68;同时,只有31例(15.7%)报告在确诊ADDwR前5年内接受过第三磨牙拔除术。结论:就大多数患者而言,拔除第三磨牙并不会导致颞下颌关节盘前移位。
OBJECTIVE: To evaluate the correlation between the third molars extraction and the incidence of anterior disk displacement of the temporomandibular joint. Methods: One hundred and ninety-seven patients with anterior disk displacement with reduction (ADDwR) were randomly selected as the case group and 985 patients with dental clinic as the control group. The case-control method and telephone questionnaire were used to compare two Group of patients with third molar removal. RESULTS: ADDwR did not show a more clear association with the case group, with a odds ratio (OR) of 1.24 and 95% confidence interval (CI): 0.91 to 1.68; in the meantime, only 31 (15.7%) reported prior to the diagnosis of ADDwR 5 years received the third molar removal surgery. CONCLUSIONS: For most patients, removal of the third molar does not result in premolar displacement of the temporomandibular joint.