Objective: The oral health status during whose elementary school age is very important because it would be a basis of whose life long oral health status. This study was conducted to propose the fundamental data for further developments of the school dental clinic program (SDCP) through evaluating comprehensive improvements of the indices relating to oral health status and acceptance of SDCP subjected on the students, their parents and teachers who had experienced the program. Methods: The subjects were total 8,849 person composed of 3,904 students of second to fourth grade, 4,734 parents and teachers form the 8 elementary school in Ulsan metropolitan city area that have been operating SDCP from 1999 to 2005. The subject schools were classified as the five longer operation period group (LOG) that started SDCP from 2005 or 2004, and the three shorter operation period group (SOG) that started SDCP from 2000 or 1999. The questionnaire survey on the knowledges, attitudes and practices for oral health, recognition and supports of SDCP were carried out from June 24 to July 13, 2007. Data analysis were done with SPSS program through frequency analysis, chi-square test and odds ratio (95% confidence interval). Results: For the students by grade, the recognition level for fluoride effect (p ( 0.001) and sealant effect (p < 0.001) for caries prevention, the experience level for fluoride toothpaste use (p < 0.001), oral health education (p < 0.001), use of school dental clinic (p=0.002), the practice level for tooth brushing more than 3 times per day (p < 0.00 1), rolling tooth brushing (p < 0.001), and the level of change brushing method after the education (p < 0.001) were higher in the higher grade students, however, the experience level of dental sealant (p=0.080) was higher in the lower grade students. By the operation period group in the whole grades, the recognition level for fluoride effect (p=0.002) and sealant effect (p=0.004) for caries prevention, the experience level of dental sealant (p < 0.001), oral health education (p < 0.040), the practice level for rolling tooth brushing (p=0.097) were higher in LOG, however, the response level for 'the education is helpful' (p < 0.001) was higher in SOG. The practice level for tooth brushing more than 3 times per day, always tooth brushing after lunch, and the level of change brushing method after the education showed difference results by the grades. Conclusion: The positive effects of SDCP to assist the students' oral heath were apparent with higher improvements of the recognition and practices in higher grade and in LOG, and, satisfaction and supports of the parents and teachers. The efforts for keeping the continuity should be emphasized including the higher interests, more active participation, and strengthened education. The systematic supports from the authorities of school and national health department would be also important.
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