Clinical assessment of pressure pain threshold in temporomandibular disorders:Part 4. Evaluation of intra-individual variations of painful and non-pain side
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The pressure pain threshold (PPT) can confidently be used to evaluate the tenderness at the muscle and/or joint with interexaminer reliability. However, it has not been examined whether intraindividual comparison between PPTs of a painful side and a non-pain side are usable to diagnose the painful side clinicaly, namely, a lower PPT indicates the painful side. Then estimation for intraindividual variations of PPTs at a painful side and a non-pain side of female temporomandibular disorders (TMD) patients (n=52) who were registered on a two-point scale, yes or no by traditional finger palpation were studied. PPT values of TMD patients were also checked with no pain female volunteers (n=19).The results showed that, the differences between PPT of each pair of corresponding points of TMD patients are statistically significant, and that PPTs of the painful side are lower than the non-pain side. PPTs of the non-pain side of TMD patients tend to be lower than those of volunteers. Conversely, the higher PPTs, slightly higher than the non-pain side, are found in the painful side at the temporal muscle (10%), inferior part of the masseter muscle (20%), mid portion of the masseter muscle (16%), lateral pole of the condyle (20%) and posterior margin of the ramus (32%).These results showed that diagnosis using the difference of PPT in the right and left side might be mistaken for the painful side within the limit between 10 and 32%. Furthermore, in the non-pain side of TMD patients, the pressure pain sensitivity probably accelerates.
- 一般社団法人 日本顎関節学会の論文
一般社団法人 日本顎関節学会 | 論文
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