手用歯ブラシによる歯みがき圧,歯みがき動作の回数および歯垢清掃効果と歯ブラシの使用回数との関係について

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概要

• 論文の詳細を見る

• Increase in the use of a manual toothbrush results in deformation of the brush's bristles. Therefore, it is reasonable to consider the relations among the deformation force, the number of brushing strokes, and the plaque removal effect.<BR>Thses influences were studied on a correlative basis with 13 people 22-28 years of age whose use of a toothbrush (4 minutes once daily for 45 days) was experimentally increased.<BR>The results obtained were as follows:<BR>The degree of deformity of bristles of a toothbrush accompanying an increase in the use of bristles was correlated with brushing force, and brushing force with the number of brushing strokes. Accordingly, an increase in the use of brushing was followed by an increase in plaque removal effect. While a toothbrush was new, the degree of skill in brushing in individuals was hardly recognizable, but it revealed itself after the toothbrush was used for several days.<BR>It was recommended to use a new toothbrush in order that individual difference in the degree of skill of brushing might be eliminated. Among the examinees whose plaque removal effect was 100%, brushing force and the number of brushing strokes were in inverse proportion. Plaque removal effect was found to be high in the upper anterior teeth and low in the lingual surfaces of the lower right and left molars irrespective of the use of a new or an old toothbrush.<BR>Thus, to obtain a higher plaque removal effect it is necessary to use a new toothbrush, or change the brushing method, or pay special attention in brushing those sites which have been low in plaque removal effect. The present results recommend the use of a toothbrush three times daily, for three minutes, three minutes after a meal (3-3-3 formula of toothbrushing) for 13 days. If the optimal time period for brushing obtained in the present study is adopted, about a week's practice will be sufficient.

• 有限責任中間法人 日本口腔衛生学会の論文

著者

• 松沢 栄

  大阪歯科大学生理学教室

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• 手用歯ブラシによる歯みがき圧,歯みがき動作の回数および歯垢清掃効果と歯ブラシの使用回数との関係について

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