title: An experimental gingivitis study to evaluate the clinical effects of a stannous fluoride dentifrice.
abstract: OBJECTIVE
  A double blind, controlled, parallel group trial utilizing the experimental gingivitis model was performed on thirty young adults to evaluate the clinical effects of a 0.45% stannous fluoride dentifrice used as a slurry on dental biofilm formation and the development of gingivitis.
  
  
  METHODS
  Following a thorough examination and oral prophylaxis procedures, subjects were randomly assigned to apply one of the following dentifrices twice daily over a three-week period: A) dentifrice slurry without active ingredients; B) 0.45% stannous fluoride gel; and C) Colgate Total dentifrice slurry (0.30% triclosan, 0.24% sodium fluoride, 2% copolymer).
  
  
  RESULTS
  After three weeks, the stannous fluoride dentifrice significantly (p < 0.05) reduced gingivitis compared with the Colgate Total group by 39.7%. Gingival bleeding was also reduced relative to the Colgate Total group. This difference was statistically significant (P < 0.05). During the experimental period, the mean PII scores increased almost linearly in all three groups without yielding any statistically significant differences.
  
  
  CONCLUSIONS
  The results of this clinical trial demonstrated that, over a three-week period, the application of a 0.45% SnF2 gel significantly inhibited the onset of gingivitis compared to Triclosan/sodium fluoride/copolymer (Colgate Total). However, neither stannous fluoride nor Triclosan/sodium fluoride/ copolymer (Colgate Total) possessed sufficient antimicrobial activity to suppress biofilm formation in the absence of regular oral hygiene practices.
authors.affiliation: University of Berne School of Dental Medicine, Berne, Switzerland. nplang@dial.eunet.ch
authors.forename: Niklaus P
authors.initials: NP
authors.lastname: Lang
authors.forename: Elena
authors.initials: E
authors.lastname: Anton
authors.forename: Yvonne
authors.initials: Y
authors.lastname: Gabriel
authors.forename: Giovanni E
authors.initials: GE
authors.lastname: Salvi
authors.forename: Bjarni E
authors.initials: BE
authors.lastname: Pjetursson
authors.forename: J Leslie
authors.initials: JL
authors.lastname: Winston
authors.forename: Tao
authors.initials: T
authors.lastname: He
mesh_terms: D000328:Adult; D045424:Complex Mixtures / Q000627:therapeutic use; D003773:Dental Plaque / Q000517:prevention & control*; D003774:Dental Plaque Index; D003802:Dentifrices / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D005459:Fluorides / Q000627:therapeutic use; D005891:Gingivitis / Q000517:prevention & control*; D006801:Humans; D008297:Male; D010512:Periodontal Index; D012824:Silicic Acid; D014002:Tin Fluorides / Q000627:therapeutic use*; D014100:Toothpastes; D014260:Triclosan / Q000627:therapeutic use
chemical_list: D045424:Complex Mixtures; D003802:Dentifrices; D014002:Tin Fluorides; D014100:Toothpastes; C546060:hydrated silica gel-based toothpaste; D012824:Silicic Acid; D014260:Triclosan; D005459:Fluorides