title: Exploratory randomised controlled clinical study to evaluate the comparative efficacy of two occluding toothpastes - a 5% calcium sodium phosphosilicate toothpaste and an 8% arginine/calcium carbonate toothpaste - for the longer-term relief of dentine hypersensitivity.
abstract: To compare the longer-term clinical efficacy of two occlusion-technology toothpastes - a 5% calcium sodium phosphosilicate (CSPS) toothpaste and a commercially available 8% arginine/calcium carbonate toothpaste - in relieving dentine hypersensitivity (DH). Efficacy was also compared with that of a regular fluoride toothpaste control.
  
  
  
  This was an exploratory, randomised, examiner-blind, parallel-group, 11-week, controlled study in healthy adults with self-reported and clinically diagnosed DH. After an acclimatisation period, subjects were randomised to one of three study treatments with which they brushed their teeth twice daily. Sensitivity was assessed at baseline and after 1, 2, 4, 6 and 11 weeks treatment in response to evaporative (air) and tactile stimuli (measured by the Schiff Sensitivity Scale/visual analogue scale and tactile threshold, respectively).
  
  
  
  A total of 135 subjects were randomised to treatment. The two occlusion-technology toothpastes performed similarly over the 11-week treatment period. All study treatments showed statistically significant reductions from baseline in DH at all timepoints for all measures (p<0.05). Statistically significant and clinically relevant sensitivity relief was observed for both occluding formulations compared with the regular fluoride toothpaste: for evaporative (air) sensitivity within 1 week and for tactile sensitivity at Week 11. No significant differences were detected between the two occluding formulations at any timepoint, for any endpoint. Study treatments were generally well tolerated.
  
  
  
  In this exploratory study, a 5% CSPS occluding toothpaste was effective in relieving DH compared with a regular fluoride toothpaste; an 8% arginine/calcium carbonate anti-sensitivity toothpaste provided similar benefits. Improvements in DH continued throughout the 11-week study.
  
  
  
  Dentine hypersensitivity (DH) is a common and painful condition. Twice-daily use of a 5% calcium sodium phosphosilicate toothpaste reduces DH within 1-2 weeks of initiating use. Ongoing, twice daily use of the sensitivity toothpastes evaluated in this study was associated with continued, clinically significant improvements in DH.
authors.affiliation: GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT12 ODE, UK. Electronic address: clairehall129@gmail.com.
authors.forename: Claire
authors.initials: C
authors.lastname: Hall
authors.affiliation: GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT12 ODE, UK. Electronic address: stephen.x.mason@gsk.com.
authors.forename: Stephen
authors.initials: S
authors.lastname: Mason
authors.affiliation: GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT12 ODE, UK.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Cooke
mesh_terms: D000293:Adolescent; D000328:Adult; D001120:Arginine / Q000627:therapeutic use*; D002119:Calcium Carbonate / Q000627:therapeutic use*; D002130:Calcium Phosphates / Q000627:therapeutic use*; D002681:China; D057133:Dentin Desensitizing Agents / Q000627:therapeutic use*; D003807:Dentin Sensitivity / Q000188:drug therapy*; D005260:Female; D005459:Fluorides / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D017640:Silicates / Q000627:therapeutic use*; D012969:Sodium Fluoride; D013997:Time Factors; D014099:Toothbrushing; D014100:Toothpastes / Q000737:chemistry* / Q000627:therapeutic use*; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D002130:Calcium Phosphates; D057133:Dentin Desensitizing Agents; D017640:Silicates; D014100:Toothpastes; C076375:rhenanite; D012969:Sodium Fluoride; D001120:Arginine; D002119:Calcium Carbonate; D005459:Fluorides
keywords: Calcium sodium phosphosilicate; Dentine hypersensitivity; Occlusion; Toothpaste