日本口腔外科学会雑誌
Online ISSN : 2186-1579
Print ISSN : 0021-5163
ISSN-L : 0021-5163
若年発症顎関節症の臨床的研究
臨床統計的検討
丸山 高広田口 望桑原 未代子峰野 泰久浅井 嗣久小谷 久也中田 茂樹金田 敏郎岡 達
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1986 年 32 巻 3 号 p. 406-410

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Clinico-statistical observation on TMJ arthrosis in young people under 20 years old was studied. The subjects were 238 patients who visited Department of Oral Surgery, School of Medicine, Nagoya University Hospital during the 13 years (1971-1984).
1. The proportion of young people to hole TMJ arthrosis patients by each year had been increased gradually.
2. On sexual difference, female is 2.4 times more than male. On damaged side, the left side is a little more than the right side.
3. On incidental classification, internal injury is the most usual case (76.1%), the second is external injury (13.0%), and the third is ideopathic (10.9%). In primary clinical symptoms, the sound of TMJ is the most usual one.
As mentioned above, we considered that in young cases of TMJ arthrosis, the sound of TMJ has been generated by dislocation of the disc because of disharmony of TMJ components by internal injury.

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