歯磨剤のin vitroにおけるpolishing効果とヒト歯牙汚染除去効果との対応性に関する研究

概要

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Forty-five volunteers were divided into three groups depending upon the degree of staining of their anterior teeth after an oral hygiene check-up by hygienists. Each group used one of three test dentifrices with different polishing ability, and the cleaning effect of each dentifrice on their anterior teeth was photographically evaluated at the beginning, 13, 26, 42, and 62 days. In order to study the relationship between the cleaning effect of each dentifice In Vivo and the In Vitro polishing ability the weight loss of an antimony plate was measured after 10000 strokes of a brush with each dentifrice on it. The group which used the dentifrice with low polishing ability showed a significant amount of stains on their teeth, but these stains were not observed in the remaning gorups, which used common dentifrice and the dentifrice with a high polishing ability. The relationship between the cleaning effect in a clinical study and the polishing ability of the three dentifrices showed good agreement with Kitchin's study. These results suggest that the dentifrice should have a certain level of polishing ability and that brushing with this dentifrice should be recommended to keep the teeth clean.
有限責任中間法人日本口腔衛生学会の論文