Methods of Analysis of TMJ Arthrosis in Juveniles

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概要

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• Twenty-five female patients less than 15 years old with TMJ arthrosis were analysed. As a control group, twenty-five females of the same age with normal TMJ function were selected. using statistical methods (t-test etc.) The following features in both graups were evaluated: 1) median line, 2) over bite, over jet, 3) Spee curve, 4) crowding, 5) total tooth size, archsize, 6) arch length, arch width, 7) basal arch length, basal arch width, 8) discrepancy, 9) Angle's classification.The results showed that there were differences in 2), 3), 7) between the patient group and the normal group.We conclude that the disharmony of occlusion in juveniles causes muscle spasms, retroposition of the mandible and abnormal movement of the mandible.These factors may bring about TMJ arthrosis in the patients' later life.

• 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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