1년간 영구치 우식발생 관련 요인에 대한 종주연구

Abstract

Objectives: 'The purpose of this study was to analyse the related factors to the caries increment. Methods: The subjects were 249 elementary school students. Among them, the number of male students was 137(55.0%). In the first year, all subjects gave the responses of the questionnaire composed of demographic variables and oral heath behaviors. They also received oral examination and tests of Dentocult SM and Dentocult LB. In the second year, they received second oral examination. the relation of oral health-related factors with caries increment was analyzed by chi-square test and crude and adjusted Relative Risk(RR). Results: The caries experience rate of subjects eating snacks one or more dimes a day was 2.6 times higher than the other subjects. The caries experience rate might be higher an a group determined by Dentocult LB as Class 2 and over(adjusted RR=2.3) than the other group. The caries experience rate of a group who had thee or more primary molars affected by caries might be 2.5 times higher than the other group. Conclusions: It was suggested that the caries increment be related to the frequency of eating snacks, Lactobacillus in saliva and caries on deciduous molars.