Objectives : The purpose of this study was to evaluate the overall oral health knowledge and toothbrushing pattern of school dental clinic students in school dental clinics and to provide the basic data for the oral health. Methods : The subjects were 290 elementary school students visiting school dental clinics in Busan Metropolitan city. The data were collected from July 3, 2012 to July 19, 2013. Results : The visit rate of school dental clinics was 40.3%. Girl students brushing three times a day accounted for 47.3% and boy students brushing twice a day accounted for 58.5%(p<0.05). Students using rolling brushing method accounted for 35.4% and 8% of the students did not know the rolling method. Brushing method response consisted of circular motion(21.6%) and rolling method(30.8%). Brushing more than 3 minutes accounted for 46.5%(p<0.001) and 30.8% of the students chose rotation brushing method(p<0.001). Conclusions : It is very important for the elementary school students to learn the right oral health education and oral health knowledge.