Nihon Hotetsu Shika Gakkai zasshi
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Nihon Hotetsu Shika Gakkai Zasshi · Jul 2008
Relationship of pressure pain thresholds between the masticatory muscles and styloid process. Part 2. Healthy subjects and patients with temporomandibular disorders.
We previously reported correlations between the pressure pain threshold (PPT) at the styloid process, which represents individual pain sensitivity, and PPTs of the masticatory muscles in healthy subjects, and proposed the 95% confidence interval (95%CI) of the PPT at the styloid process as a reference range. In this study, we evaluated its usefulness as a reference range. ⋯ The 95%CI of the PPT at the styloid process is useful as a means for the evaluation of muscle symptoms of TMD patients.
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As more dentists diagnose and treat the patient with temporomandibular disorders, muscle palpation has been recognized as a valuable diagnostic method. But this method was depended on sensibility and experience of the operator. The purpose of this study was to establish the quantification of muscle palpation by new pressure pain threshold apparatus. ⋯ The females showed lower PPT than the males. 2. No difference of PPT between right and left sides was recognized in normal subject, but the significant difference in the patient. 3. PPT of the normal subjects were significantly higher in the posterior temporal M. than the other sites and lower in the superficial portion of masseter M. than the other sites.