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颞颌关节音被认为是颞颌关节紊乱患者最常见的指征之一,但是这种关节音在无症状受试者身上也常出现。颞颌关节音记录只有在正常受试者的关节音能够区别于患者的关节音时才有意义。本文旨在对有症状患者和无症状受试者关节音的振幅和频谱进行对比研究,并分析关节音在不同频率范围时的分布情况。 材料和方法 选取经过听诊检查确定有关节音存在的颞颌关节紊乱患者49例,其中男23例,女26例,年龄20～63岁。以只有颞颌关节音无其他症状的受
Temporomandibular joint sounds are considered to be one of the most common indications of patients with TMJ disorders, but this articulation is also common in asymptomatic subjects. Temporomandibular joint recordings are only meaningful if the articulation of the normal subject can be distinguished from the articulation of the patient. The purpose of this article is to compare the amplitude and frequency spectra of articulated sounds between symptomatic and asymptomatic subjects and to analyze the distribution of joint sounds over different frequency ranges. Materials and Methods Forty-nine patients with temporomandibular joint disorders were identified by auscultation, including 23 males and 26 females, aged 20-63 years. Only temporomandibular joint tone without other symptoms of the subject