Huang Zhuo-shan, Lin Xue-feng, Li Xue-ling
Department of Stomatology, Memorial Hospital of Sun Yat-sen, Sun Yat-sen University, Guangzhou, China.
Cranio. 2011 Oct;29(4):276-83. doi: 10.1179/crn.2011.041.
The objective to the present study was to compare temporomandibular joint (TMJ) vibration in anterior disk displacement with reduction (ADDWR) in adults and to explore the diagnostic value of frequency spectrography of TMJ vibrations. Twenty-one patients with ADDWR formed the case group and were further divided into three subgroups according to the degree of disk displacement, and 26 symptomless adults formed the control group. The joint vibration was recorded during rhythmic maximal open-close jaw movement using JVA/JT, BioPAK (Bioresearch, Inc., Brown Deer, WI)). The sensitivity and specificity of the total integral for diagnosis of ADDWR was calculated. All TMJ vibration parameters, including total integral, integral>300Hz, integral<300Hz, >300/<300 ratio, peak amplitude, peak and median frequencies of the case group were significantly higher than that of the control group. Along with the degree of disk displacement, the amplitude and frequency of TMJ vibrations increased, and the total integral significantly increased. The total integral demonstrated high sensitivity and specificity for diagnosis of ADDWR (85.7% and 84.6%, respectively). TMJ vibration was significantly higher in adults with ADDWR than that in the symptomless control group. Different pathological stages of disk displacement have different TMJ vibrations.
本研究的目的是比较成人可复性盘前移位（ADDWR）时颞下颌关节（TMJ）的振动情况，并探讨TMJ振动频谱分析的诊断价值。21例ADDWR患者组成病例组，并根据盘移位程度进一步分为三个亚组，26例无症状成人组成对照组。使用JVA/JT、BioPAK（Bioresearch公司，威斯康星州布朗德尔）在有节奏的最大开闭口运动过程中记录关节振动。计算诊断ADDWR的总积分的敏感性和特异性。病例组的所有TMJ振动参数，包括总积分、积分>300Hz、积分<300Hz、>300/<300比值、峰值振幅、峰值频率和中位数频率均显著高于对照组。随着盘移位程度的增加，TMJ振动的幅度和频率增加，总积分显著增加。总积分对ADDWR的诊断具有较高的敏感性和特异性（分别为85.7%和84.6%）。ADDWR成人的TMJ振动明显高于无症状对照组。盘移位的不同病理阶段有不同的TMJ振动。
