PMID: 15250174Jul 15, 2004Paper

Effectiveness of three whitening dentifrices

Schweizer Monatsschrift für Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia
Frank SchneiderElmar Hellwig

Abstract

Over the past years the market share of whitening dentifrices has been increasing. The aim of this parallel, randomized, double-blind clinical trial was to assess the efficiency of three commercially available tooth whitening dentifrices. Thirty-six subjects with extrinsic tooth stain (A3 and darker) were randomly assigned to three groups (A, B, C) of twelve subjects each. Group A brushed their teeth twice daily with Durodont medical fresh and white (RDA 70), Group B with Friscodent Zahnweiss (RDA 87) and Group C with a combination of Durodont Zahnweiss intensiv (RDA 166) and Durodont medical fresh and white. At baseline and after four and eight weeks the color of the anterior teeth was evaluated using a VITAPAN classical color shade and a special colorimeter (Homeba). The colors of the shade guide were arranged and nummerized by value. After four and eight weeks of use each dentifrice showed a significant whitening effect compared to baseline (p < or = 0.05). There were, however, no significant differences between the groups. Moreover both methods showed similar results. Thus, the results support a significant "whitening" effect of all three dentifrices.

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