title: Randomized digital plaque imaging trial evaluating plaque inhibition efficacy of a novel stabilized stannous fluoride dentifrice compared with an amine fluoride/stannous fluoride dentifrice.
abstract: OBJECTIVE
  To assess the plaque inhibition efficacy ofa novel 0.454% stabilized stannous fluoride test dentifrice (SnF2) to an amine fluoride/stannous fluoride marketed control dentifrice (AmF/SnF2) using digital plaque imaging analysis (DPIA).
  
  
  METHODS
  The 10-week study was a randomized, two-treatment, three-period, double-blind crossover design. Subjects brushed twice daily with their assigned dentifrice (SnF2 or AmF/SnF2) using a standard manual toothbrush during three treatment periods each lasting 17 days, separated by four-day washout periods. DPIA was used to analyze plaque coverage on facial surfaces of the 12 anterior teeth (canine to canine) by three assessments on Days 15, 16, and 17 at the end of each treatment period. Assessments were conducted the morning following no overnight brushing of facial surfaces (A.M. pre-brush), after 40 seconds of full mouth brushing with the assigned dentifrice (A.M. post-brush), and during the afternoon (P.M.).
  
  
  RESULTS
  Twenty-seven subjects were randomized and completed the study. At each assessment time point, plaque levels for the SnF2 dentifrice were statistically significantly lower compared to those for the AmF/SnF2 dentifrice (21.4%, 22.6%, 24.3%, respectively; p < 0.0001 for all).
  
  
  CONCLUSIONS
  Plaque coverage, as assessed by DPIA, was significantly lower with a novel SnF2 dentifrice than with the AmF/SnF2 dentifrice. The plaque control benefits of the SnF2 dentifrice seen at the morning and afternoon time points indicated significantly better inhibition of plaque re-growth.
authors.affiliation: Procter & Gamble London Innovation Centre, Egham, Surrey, UK. bellamy.pg@pg.com
authors.forename: P G
authors.initials: PG
authors.lastname: Bellamy
authors.forename: A
authors.initials: A
authors.lastname: Boulding
authors.forename: S
authors.initials: S
authors.lastname: Farmer
authors.forename: T N
authors.initials: TN
authors.lastname: Day
authors.forename: A J
authors.initials: AJ
authors.lastname: Mussett
authors.forename: M L
authors.initials: ML
authors.lastname: Barker
mesh_terms: D000328:Adult; D000588:Amines / Q000627:therapeutic use; D000704:Analysis of Variance; D018592:Cross-Over Studies; D003773:Dental Plaque / Q000473:pathology / Q000517:prevention & control*; D003802:Dentifrices / Q000737:chemistry / Q000627:therapeutic use*; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D014002:Tin Fluorides / Q000627:therapeutic use; D055815:Young Adult
chemical_list: D000588:Amines; D003802:Dentifrices; D004338:Drug Combinations; D014002:Tin Fluorides; C075174:amine fluoride gel