he effect of community dental health education and control program using tooth-brushes and dentifrices, and the relation between the Sodium Monofluorophosphate in dentifrices and incidence of dental caries in the middle school girls were studied experimentally for the period of one year.
In this study, 1,269 middle school girls were divided into three groups: control A group, to which the dental health education was not instructed, nor toothbrushes and tooth pastes were supplied; another experimental B group, to which the toothbrushes and the commercial dentifrices. were supplied under the dental health education; the third experimental C group, to which toothbrushes and specially manufactured dentifrices containing Sodium Monofluorophosphate in paste form were supplied under the dental health education. For one year, the experimental B and C groups had been under the dental health control program using toothbrushes and dentifrices.
After the experimental period, the understanding level of middle school girls concerning the dental health, the condition of the dental health control, the oral hygiene status, the dental caries experience and periodontal score were evaluated. The oral hygiene status was evaluated by.the Greene and Vermillion´s Simplified Oral Hygiene Index, the prevalence of dental caries was calculated by Bodecker´s Modified Dental Caries Index and the periodontal disorders were assessed by Russell´s Periodontal Index.
The obtained results were as follows:
1. For the duration of the one year experiment, the understanding level-of the middle school girls under the dental health education was greatly elevated; the number of girls who know the number of the deciduous and permanent teeth of man were increased from 27 per cent to 89 per cent, the number of those who know the cause of the dental caries from 44 per cent to 80 per cent, the number of those who know the a.nticariogenic effect of the fluorides from 13 per cent to 88 per cent.
2. The condition of the dental health control of the girls under the dental health education and control program became almost safisfactory.
3. Greene and Vermillion´s Simplified Oral Hygiene Index of the girls under the dental health education and control program using the toothbrushes and commercial dentifrices was decreased.
4. There was no effect of Sodium Monofluorophosphate in dentifrices on the oral hygiene index and the periodontal disorders.
5. In the experimental B group under the dental health education and control program using the toothbrushes and the commercial dentifrices, a 38.57 per cent reduction was found for DMF surfaces.
6. In the experimental C group under the dental health education and control program using the toothbrushes and the paste form of dentifrices containing Sodium Monofluorophosphate, a 45.71 per cent reduction was found for DMF surfaces.
7. The dental health education and control program using toothbrushes and dentifrices has the preventive effect on the periodontal disorders.
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