東京都文京区小・中学校児童, 生徒の齲歯半減運動実施にともなう口腔衛生管理の実態 第1報
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At the time of enforcement of “The Half Reduction Campaign for Dental Caries.”, form a standpoint for managing school dental hygiene, the authors studied about a development of teeth and mouth, influence of the dental caries prevalence and the effect of this campaign on 20, 317 boys and 17, 675 girls, total 37, 992 children, of 20 primary schools and 10 junior high schools and following results were obtained.<BR>1) On every ages to count a ratio of the number of both deciduous and permanent to the present teeth that are consisted of deciduous and permanent teeth, and draw them on the semi-log graph, then the crossing point of those curves lies on the 50 % line, the authors guess it will have a significance as dental-arch development. The authors can recognize that this point will be affected naturally or social environment. In this material it shows very close to the 8 years of age between 9 and 8 on boys and right in middle between 7 and 8 years of age on girls which is little earlier than boys.<BR>2) The condition of deciduous dental caries in this wards shows a high rate at the dental-arch developing cross of 7 to 8 years of age as a center to 9 years of age and agree with the period of the highest dental caries rate of permanent teeth.<BR>3) Not only as a result of this campaign it shows an ascension of the treatment rate but the effect of the health education for Oral Hygiene and the dental hygienic control also shows a descension of dental caries rate and the authors recognized that this campaign has a big significance.
- 有限責任中間法人 日本口腔衛生学会の論文
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