歯科検診時に調査した顎関節症状と歯牙の状態について
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概要
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Many studies were reported as epidemiological investigations in population, for the purpose of recognizing the evoking mechanism of temporomandibular joint pain dysfunction. Frequency of certain symptoms such as joint sounds, difficulty of opening mouth wide and masticatory pain was sometimes observed in high rates of more than 50%.<BR>In this report, as a result of a questionnaire survey, the rate of each cardinal symptom in an approximate 4000 adult population showed that TMJ sound were noted in about 6%, mouth opening difficulty in about 2% and pain in about 1.5%. These subjective symptoms were observed equally in both sexes and of little significacnce when judging the need for treatment. Comparing the maximal mouth opening, the symptomatic group showed a lower value than the sex-age-matched control group.<BR>Occlusion has been discussed as a main factor of TMJ dysfunction. However, the etiology is evaluated to be probably multifactorial and complex in general. In this investigation, the individual mean DMF (decay, missing, filling) teeth index showed a significant high rate in the symptomatic group. Although there seems to be a relationship between dental condition and masticatory symptoms, these facts must be considered as an only one of various etiologicfactors. It can be stressed that at least dental treatment for some decayed and missing teeth should be done as early as possible after relief from masticatory pain and trismus.
- 社団法人 日本口腔外科学会の論文