| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1999: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Research Abstract |
It has not been agreed upon among dental researchers if playing musical instruments is the causative factor of TMD
To analyze the relationship between playing musical instruments and TMD, cross-sectional and longitudinal study by use of questionnaire was carried out for four consecutive years
The subjects were comprised of by students of music (1,983 persons), those of dietetics (2,736), those of domestic science (2,629) and those of dentistry (1,043)
The items in the questionnaire were the types of musical instruments the students usually play, if they have symptoms of TMD (TMJ noises, TMJ pains and Trismus), the absence/presence of any accompanying symptoms (a pain in the ear, headache and stiff shoulders) and their medical history (treatment of TMJ, masticatory habits, head and face trauma, dentition and occlusion, orthodontic treatment, stress and Bruxism)
Among the subject university students, no significant difference was found between the students of music and others (except for those of dentistry). Furthermore, no significant difference was found among female students of music between the "mouth-using" group (422 persons) who specialize in vocal music and wind instruments and "non-mouth-using" group (1,164) who specialize in keyboard, strings and percussion instruments
There was not a significant change of suffering rate of TMD symptoms by a progress of school year except for the students of dentistry. This lack of significant difference is believed to originate from the fact that university students have not been playing the musical instruments for as long as professional musicians have, thus they have not yet reached the level of TMD outbreak
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