title: Clinical evaluation of the stain removing ability of a whitening dentifrice and stain controlling system.
abstract: OBJECTIVE
  This study aimed to evaluate the stain removing/controlling properties of a whitening dentifrice and a stain controlling system, in a parallel group, multiple use study.
  
  
  METHODS
  Subjects (63), were stratified according to baseline stain scores and randomly allocated to a group, A (standard dentifrice), B (whitening/stain removing dentifrice) or C (whitening/stain removing dentifrice, tooth polish, tooth polisher and whitening/stain removing mouthwash). At each attendance, extrinsic stain was scored blind by a trained and calibrated examiner using the Shaw and Murray Stain Index, under constant lighting conditions. In addition, whiteness was measured using a colorimeter.
  
  
  RESULTS
  The toothpaste regimens were well balanced at baseline (p=0.811). At 4 weeks, Regimens B and C had significantly less stain than A (p<0.05). Lower stain values were maintained/reduced for regimens B and C by week 6, with changes from baseline significantly greater than for Regimen A. When lightness was assessed by colorimeter, Regimen C was also found to be significantly whiter than Regimen A (p<0.05).
  
  
  CONCLUSIONS
  It was concluded that both whitening regimens had a significant effect on reducing tooth staining and improving whiteness over the 6 week time period.
authors.affiliation: Department of Adult Dental Care, School of Clinical Dentistry, Claremont Crescent, Sheffield S10 2TA, UK.
authors.forename: Trevor F
authors.initials: TF
authors.lastname: Walsh
authors.forename: Andrew
authors.initials: A
authors.lastname: Rawlinson
authors.forename: David
authors.initials: D
authors.lastname: Wildgoose
authors.forename: Ian
authors.initials: I
authors.lastname: Marlow
authors.forename: Julia
authors.initials: J
authors.lastname: Haywood
authors.forename: Jennifer M
authors.initials: JM
authors.lastname: Ward
mesh_terms: D000328:Adult; D003124:Colorimetry; D003775:Dental Polishing; D003802:Dentifrices / Q000627:therapeutic use*; D006801:Humans; D016014:Linear Models; D009067:Mouthwashes / Q000627:therapeutic use*; D016037:Single-Blind Method; D014073:Tooth Bleaching / Q000379:methods*; D014075:Tooth Discoloration / Q000628:therapy*
chemical_list: D003802:Dentifrices; D009067:Mouthwashes