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美白牙膏去除牙外源性色斑的八周效果观察
来源:不详2012-7-2收藏投稿
e two groups were well balanced with regard to their mean baseline stain index scores, gender and tobacco habits. Subjects were instructed to brush their teeth twice daily (morning and evening) for one minute with their assigned dentifrice and a commercially available soft bristled toothbrush. Extrinsic dental stain examinations, which included mean stain area and mean stain intensity, were conducted at baseline, four and eight weeks. The same dental examiner conducted examinations on the subjects at each examination.Results: After eight-week use of their assigned products, those subjects in the TSPP/STPP/HCS dentifrice group demonstrated a statistically significant (P=0.0001) stain reduction of 37.l%, as compared to the fluoride placebo dentifrice group without stain removal ingredients.Conclusion: The use of a dentifrice containing 1% tetrasodium polyphosphate,7% sodium tripolyphosphate, 0.243% sodium fluoride and 10% high cleaning silica is effective in reducing natural extrinsic dental stain, when compared to a placebo fluoride dentifrice.

Key words:dentifrice extrinsic dental stain dental stain index

牙齿外源性色斑常见且影响美观,多由于饮用含色素的饮料(如茶、咖啡、红酒等)、吸烟或咀嚼烟草引起。去除外源性色斑是指去除牙面获得性膜和牙釉质表层中的色斑[1]。由于引起色斑的原因不同,牙面色斑形成的颜色、组成、结构及粘性均有不同[2]。去除位于牙面获得性膜中的外源性色斑,无需使用可渗透进牙面内的药物;去除位于牙釉质表层内的色斑,则需用渗透进牙面组织结构的药物,如过氧化氢等[3]。本研究的目的在于评价一种含有焦磷酸钠、三聚硫酸钠、氟化钠及高清洁二氧化硅的牙膏(高露洁美白牙膏)去除牙面外源性色斑

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