期刊
JOURNAL OF ORAL REHABILITATION
卷 40, 期 8, 页码 574-581出版社
WILEY
DOI: 10.1111/joor.12073
关键词
malocclusion; masticatory function; gastric emptying; digestion; colour-changeable chewing gum; questionnaires
资金
- Ministry of Education, Culture, Sports, Science and Technology in Japan [2359 3023]
Masticatory function is significantly lower in individuals with malocclusion than in those with normal occlusion. Although several studies suggest that masticatory function influences gastrointestinal digestive function, the relationship between malocclusion and gastrointestinal symptoms has not been studied extensively. We hypothesised that insufficient masticatory function would increase the functional burden of the stomach and have some influence on the gastrointestinal system. The purpose of this study was to investigate masticatory function and gastric emptying rate in subjects with malocclusion. Eleven healthy dentate female volunteers and eleven female patients with malocclusion underwent a C-13-acetate breath test with a liquid meal. Maximum (CO2)-C-13 exhalation time (T-max) was compared statistically between both groups. Masticatory function was assessed by colour-changeable chewing gum. In addition, the frequency scale for the symptoms of gastroesophageal reflux disease (FSSG) and questionnaires on food intake were given to both groups. The mean T-max of the malocclusion group was significantly longer than that of the normal occlusion group (P = 0.007). Masticatory performance, measured by colour-changeable gum and questionnaires, was significantly lower in the malocclusion group than in the normal occlusion group (P = 0.023, P = 0.003). There was no significant difference in the FSSG results between the two groups (P = 0.262). This study suggested that there was a correlation between malocclusion and gastric emptying function in women.
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