title: [Effectiveness of three whitening dentifrices].
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.
authors.affiliation: Abteilung für Zahnerhaltungskunde und Parodontologie Albert-Ludwigs-Universität, Freiburg, Deutschland. schneider@zmk2.ukl.uni-freiburg.de
authors.forename: Frank
authors.initials: F
authors.lastname: Schneider
authors.forename: Nicole B
authors.initials: NB
authors.lastname: Arweiler
authors.forename: Alexander
authors.initials: A
authors.lastname: Trett
authors.forename: Thorsten M
authors.initials: TM
authors.lastname: Auschill
authors.forename: Elmar
authors.initials: E
authors.lastname: Hellwig
mesh_terms: D000328:Adult; D003124:Colorimetry / Q000295:instrumentation; D003802:Dentifrices / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D014073:Tooth Bleaching / Q000379:methods*; D014075:Tooth Discoloration / Q000628:therapy*
chemical_list: D003802:Dentifrices