| Co-Investigator(Kenkyū-buntansha) |
HAYASHI Naoji Graduate School of Dentistry, Osaka University, Research Associate, 大学院・歯学研究科, 助手 (10303984)
TANAKA Muneo Graduate School of Dentistry, Osaka University, Research Associate, 大学院・歯学研究科, 助手 (90263300)
HANIOKA Takashi Graduate School of Dentistry, Osaka University, Associate Professor, 大学院・歯学研究科, 助教授 (00144501)
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| Budget Amount *help |
¥8,200,000 (Direct Cost: ¥8,200,000)
Fiscal Year 2001: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2000: ¥5,300,000 (Direct Cost: ¥5,300,000)
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| Research Abstract |
We previously showed that lifestyle factors such as smoking and oral health practice are strongly associated with periodontal health. In this study, we examined association between lifestyle factors including mental health and oral disease such as dental caries, periodontal disease and tooth loss, and also, association between lifestyle factors and occlusal functions. In an annual health checkup, oral health status was examined by two dentists. Information pertaining to psychosocial factors, lifestyle factors and oral health behavior was also obtained through a self-administered questionnaire. Based on Breslow's health practices, we used the health practice list revised for Japanese responds by Morimoto et al. Psychosocial health status was measured by the Karasek job strain model, the General Health Questionnaire, alexithymia, depression and type A personality. Occlusal functions were measured with Dental Prescale. We found that periodontal health status was significantly associated w
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ith age, alcohol consumption, working hour and smoking in multiple logistic model. In multivariate analysis of tooth loss on age, dental health behaviors and psychosocial factors, the association of age and alexithymia with tooth loss remained statistically significant. This result suggests that an alexithymic personality may affect tooth loss status. Furthermore, as a result of investigating on the association of oral diseases and occlusal functions, we found that occlusal force was significantly associated with the numbers of DMF teeth, present teeth and periodontal disease-affected teeth in bivariate analysis. However, in multivariate analyses, the occlusal force showed significant associations with number of present teeth and stressful lifestyle. This result suggests that oral diseases may also affect occlusal function. Collectively, the results of this study suggest that a new oral health practice index is developed by using the status of oral diseases, occlusal functions, lifestyle factors including psychosocial factors. Less
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