To prepare basic data for oral health promotion of elementary and middle school students through the survey of the status of school loss on account of oral diseases and the examination of the related factors, a questionnaire survey was conducted for 3,080 students. School loss was investigated based on the experiences of absences and leaving school early, which had happened from oral diseases. Also the restricted activities related with schoolwork such as dining and sleeping were surveyed. The independent variables were oral health behaviors and socio-economic factors such as sex, age of their parents, education level of their fathers, family income. Factors related with school loss and the restricted activities were analyzed by the multiple logistic regression method.
The results of this study were as follows.
1. The 2.37% of students were absent on account of oral disease at elementary and midide school. Also, the annual average days of absence and early leaving school for elementary school students were 0.05, while the average days for middle school students were 0.07.
2. The rate of students´ restricted activity were 39.1% at elementary school and 55.7% at middle school.
3. The elementary students whose mothers are employed showed higher probability of absence due to oral diseases than the students whose mothers are unemployed.
4. The elementary students who live in rural regions showed higher probability of absence and restricted activities on account of oral diseases than the students who live in urban regions. 5. School loss of middle school students was correlated to a load of schoolwork and score of schoolwork.
6. Middle school students who do not trust oral treatment showed higher probability to experience the restricted activities due to oral diseases than the students who trust in it.
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