Objective: According to this policy, the public health center at Jung-Gu in Seoul city has decided to extend the school toothbrushing programs from 1 school to 4 schools in 2,008, and tried to appraisal every year. According to this appraisal plan, the author has performed the oral health survey for schoolchildren by checking the variations for caries an oral health or hygiene states in before and 6 months after the program in order to correct unreasonable points and to suggest the proper directions for improvement of oral health for school children. Materials and Method: 3 Primary school children of the 1st and 6th grade were joined as experimental groups and 1 school for control. 382 of the total subjects were selected among the 1st and 6th grade students who has no problems for systemic diseases or orthodontic appliance. Oral exams were done both in control group and 3 of the experimental groups, with the interview for questionnaires about the toothbrushing habits, for 2 times as before and 6months after the program at each school, in the period of May to December, in 2009. Results and Conclusion: There was no significant difference in caries experience both in permanent and deciduous dentition, in 1st grade and 6th grade between 3 experimental group and 1 control group with the equipping various type of toothbrushing unit. It revealed a little bit less in PMA, S-PHP and Snyder test in 6 months later of school based toothbrushing program both in 1st grade and 6th grade, in experimental group than in control group, but it was no significant difference in statistical (p＞0.05). The frequency of toothbrushing was the most in Bongrae school, floor type toothbrushing unit, both in 1st grade and 6th grade, otherwise the most frequency for visiting at the toothbrushing unit in Namsan school, as the continuous performing the program for 4 years. There was no significant difference for visiting at the toothbrushing unit between the type of the unite, in 1st grade, but more of frequency in Kwanghee school as classroom typed than in Kwanghee school, newly established with the toothbrushing unite than in Bongrae, as with the floor typed in 6th grade student (p＜0.05). The frequency of toothbrushing after lunch, was the most in Namsan school, continuos program performing, compared with the newly established toothbrushing unit, as Kwanghee and Bongrae school (p＜0.05). It was recommended that toothbrushing unite would be established with the room type and it should be needed the toothbrushing instruction under the supervision of the school teacher or nurse with continuously, in order to promote the oral hygiene and health.