作者: G. J. Harrap
DOI: 10.1111/J.1600-051X.1974.TB01253.X
关键词:
摘要: Abstract A new technique for assessing the effects of dentifrices on growth human dental plaque is described. Laboratory personnel brushed their teeth with and a index, Gingival margin Plaque Index, was used to measure over next 16 hours. The index estimates proportion length buccal gingival in contact disclosed surface each tooth. Dentifrices containing 0.4, 0.8 1.2% chlorhexidine digluconate caused lower than placebo paste. differences were highly significant (P < 0.001). size reduction depended concentration dentifrices. disclosing reagent had no major effect growth. coefficient linear correlation between results from two examiners 0.89 measurement quaternary ammonium salt also reduced