title: Extrinsic Stain Removal Effectiveness of a New Whitening Dentifrice.
abstract: OBJECTIVE
  This study was conducted to evaluate the effectiveness of Arm & Hammer (A&H) Truly Radiant Rejuvenating toothpaste in removing extrinsic tooth stain compared to that of a conventional fluoride/silica-containing dentifrice.
  
  
  METHODS
  This was a randomized, examiner-blind, parallel-design study with two groups of subjects who brushed unsupervised with their assigned dentifrice for two minutes, twice daily, for five days. Extrinsic stain was measured on the labial surfaces of the eight incisor teeth by the Modified Lobene Stain Index (MLSI) at baseline and following five days of product use. After balancing for baseline MLSI, beverage and tobacco use, fifty-four healthy adults with existing stain were randomly distributed into two comparable groups: Arm and Hammer Truly Radiant Rejuvenating toothpaste or Colgate Cavity Protection toothpaste (negative control). Within-treatment comparisons between baseline and day five were made using matched-pair t-tests, and between-treatment comparisons of MSLI scores were performed using ANCOVA, with baseline scores as covariates.
  
  
  RESULTS
  Twenty-eight subjects in the Truly Radiant Rejuvenating toothpaste group and twenty-six subjects in the negative control group completed the study. The groups had comparable mean scores at baseline (p > 0.05). The Truly Radiant Rejuvenating toothpaste produced a statistically significant 23.1% total (composite) stain reduction from baseline after five days of product use (p < 0.0001) while the negative control was essentially unchanged (p > 0.05). Between-treatment analysis showed statistically significantly (p < 0.0001) greater stain removal for Truly Radiant Rejuvenating toothpaste compared to the Colgate control following five days of product use. There were no adverse events reported during the study.
  
  
  CONCLUSIONS
  The A&H Truly Radiant Rejuvenating toothpaste is safe and effective in reducing extrinsic stain compared to a regular toothpaste control.
authors.forename: A
authors.initials: A
authors.lastname: Ghassemi
authors.forename: L
authors.initials: L
authors.lastname: Vorwerk
authors.forename: W
authors.initials: W
authors.lastname: Hooper
authors.forename: A
authors.initials: A
authors.lastname: Cirigliano
authors.forename: P
authors.initials: P
authors.lastname: DeSciscio
authors.forename: S
authors.initials: S
authors.lastname: Nathoo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002130:Calcium Phosphates / Q000627:therapeutic use; D003802:Dentifrices / Q000627:therapeutic use*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000187:drug effects; D008297:Male; D008875:Middle Aged; D010545:Peroxides / Q000627:therapeutic use; D011446:Prospective Studies; D012449:Safety; D012822:Silicon Dioxide / Q000627:therapeutic use; D016037:Single-Blind Method; D017693:Sodium Bicarbonate / Q000627:therapeutic use; D012969:Sodium Fluoride / Q000627:therapeutic use; D058205:Tooth Bleaching Agents / Q000627:therapeutic use*; D014075:Tooth Discoloration / Q000145:classification / Q000188:drug therapy*; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D002130:Calcium Phosphates; D003802:Dentifrices; D010545:Peroxides; D058205:Tooth Bleaching Agents; C519480:amorphous calcium phosphate; D012822:Silicon Dioxide; C403632:calcium peroxide; D017693:Sodium Bicarbonate; D012969:Sodium Fluoride