Change of temporomandibular joint disk configuration and clinical findings following conservative treatment

Murakami S

White S.C.

Uchiyama Y

Kakimoto N

International Conference on TMJ Replacement and Tissue Engineering in Hiroshima : 顎関節部の再建と組織再生に関する国際カンファレンス-広島

The objective of this study was to evaluate the relationship between changes in the disk status (position and reduction) and changes in the clinical findings following conservative temporomandibular joint(TMJ) treatment. The subjects consisted of 164 patients (328 joints) having TMJ disorders. Clinical examination and MR imaging were performed on all patients before and after conservative treatment. Clinical assessments included joint noise, pain and inter-incisal distance(IID). Disk position and reduction was classified as "improved", "worsened", or "unchanged" following treatment. In the 55 joints where disk position was improved, noise was improved in 37(67.2%) and worsened in 6(10.9%). In the 48 joints where disk reduction was improved, noise was improved in 34(70.8%) and worsened in 4(8.3%). There was a significant relationship between improvement in the disk status and improvement in the noise. In 55 joins where the disk position was improved, pain symptoms were disappeared in 22(40.0%) and newly occured in 4(7.3%). In the 56 joins where the pain was disappeared, disk reduction improved in 22(39.3%), but became worse in 22(39.3%) joints. In 56 joints where the pain was disappeared, disk reduction improved in 17(30.4%) joints disk reduction improved in 17(30.4%) joins but became worse in 32(57%). There was no significant relationship between improvement in the disk status and improvement in the pain. Treatment has no significant influence on IID. We conclude that there was no relationship between improvement in the disk status and improvement in the joint pain and IID after conservative treatment, but there was close relationship between disk stutus and the joint noise in their changes.

temporotandibular joint

TMJ

magnetic resource imaging

conservative treatment

follow-up study

inter-incisal distance

Medical sciences [ 490 ]

eng

[URI] http://ir.lib.hiroshima-u.ac.jp/00014841 isPartOf