摘 要：为探讨计算机频谱分析颞下颌关节紊乱病(TMD)杂音的临床价值，采用多道生理仪同步记录双侧关节音，计算机分析32例TMD关节音声谱有关参数。结果表明：TMD马绪臣氏一、二、三类开闭口关节音的频域＞1250Hz的总能量存有显著性差异(P＜0.001)，其＞1250Hz/＜1250Hz的能量比亦存有显著性差异(P＜0.001)，说明谱分析可作为TMD的一个较灵敏、无损伤的辅助诊断方法。
分类号：R782.63 文献标识码：A
文章编号：1003-1634(2000)01-0022-02
Frequency Spectrum Analysis of the Joint’s Sound form Temporomandibular Disorder
Li Jian,Wu fengming
(Stomatological hospital,Nanjing Medical University,Nanjing 210029)
Huang Xiaoping
(Preclinical Medicine College of Nanjing Medical University,Nanjing,210029)
Abstract：Aim The purpose of this study is to explore the clinical significance of frequency spectrum analysis in joint’s sound with temporomandibular disorder(TMD).Methods The computer is connected with polygraph system,bilateral temporomandibular joint’s sound are recorded synchronously,and 32 cases of the TMD Joint’s are prossed with the method of frequency spectrum analysis.Results On the energy there are significant differences both opened and closed joint’s sound of Ma’s Ⅰ,Ⅱ and Ⅲ class of TMD.(P＜0.001);and so are the energy rate (P＜0.001).Conclusion The method of the frequency spectrum analysis may provide a more sensitive and noninvasive tool for auxiliary diagnosis of TMD.
Key words：temporomandibular joint’s sound frequency spectrum analysis temporomandibular disorder (TMD).
颞下颌关节杂音是颞颌关节紊乱病(Temporomandibular disorders,TMD)最主要症状之一，作者通过对TMD杂音的计算机频谱分析，总结32例TMD与正常关节音声谱有关参数，探讨TMD杂音与其颞颌关节内部的病理改
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