アブストラクト（37巻1号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Occlusal Dysfunction through Its Effect on Brain Function may Influence the Whole Body: an fMRI Study
Subtitle　： BKDC CLINICAL AND RESEARCH TOPICS: Stomatognathic System and Occlusion Medicine
Authors　： Kenichi Sasaguri, Takero Otsuka, Sadao Sato
Authors（kana）　：
Organization　： Department of Craniofacial Growth and Development Dentistry, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 37
Number　： 1
Page　： 69-70
Year/Month　： 2009 / 3
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] In clinical dentistry, either following an inadequate occlusal reconstruction or with a malocclusion, patients occasionally complain of multifaceted problems, such as headaches, stiff shoulders, giddiness, tinnitus and anxiety or depression. In contrast, some of these disorders are improved by an adequate occlusal reconstruction or splint therapy. These findings suggest that occlusion abnormalities are involved in various general conditions, including psychological disorders. However, there is no direct evidence that there is any relationship between occlusion and these complaints. Accordingly, we reproduced an occlusal dysfunction model in order to create an acutely unpleasant situation by forcing the mandible with a splint into an artificially induced retrusive position. The volunteers were asked to perform voluntary maximum clenching by setting the splint, then brain region activity was mapped and the results examined using functional magnetic resonance imaging (fMRI). The findings showed, in some of the healthy volunteers, that there was a significant increase in the blood oxygenation level-dependent (BOLD) signals in the hypothalamus that are associated with emotion and/or stress. This suggests that malocclusion may chronically influence the whole body through the function of the emotional system and become one of the causes in the multifaceted problem.
Practice　： Dentistry
Keywords　：