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[Relationship between oral health status and life behavior in junior and senior high school students in Japan].

A survey of dental diseases carried out by the Ministry of Health, Labour and Welfare in 2003 revealed that more than 40% of people aged between 5 and 25 suffer from periodontal diseases and the average number of DMFT has been decreasing. The lifestyle of junior and senior high school students in particular has changed drastically. This study investigated the relationship between dietary habits and oral diseases in junior and senior high school students in Tokyo. Survey responses were received from 813 of 848 students. There was a significant correlation between the presence of untreated teeth and student's dietary habits, or the presence of periodontal diseases. These results suggest that dental hygienists need to consider providing advice on appropriate eating habits during dental hygiene instruction to students.