title: Anticaries Potential of a Sodium Monofluorophosphate Dentifrice Containing Calcium Sodium Phosphosilicate: Exploratory in situ Randomized Trial.
abstract: Calcium sodium phosphosilicate (CSPS) is a bioactive glass material that alleviates dentin hypersensitivity and is postulated to confer remineralization of caries lesions. This single-centre, randomized, single (investigator)-blind, placebo-controlled, crossover, in situ study explored whether the addition of 5% CSPS to a nonaqueous fluoride (F) such as sodium monofluorophosphate (SMFP)-containing dentifrice affects its cariostatic ability. Seventy-seven subjects wore 4 gauze-covered enamel specimens with preformed lesions (2 surface-softened and 2 subsurface) placed buccally on their mandibular bilateral dentures for up to 4 weeks. Subjects brushed twice daily with 1 of the 5 study dentifrices: 927 ppm F/5% CSPS, 927 ppm F/0% CSPS, 250 ppm F/0% CSPS, 0 ppm F/5% CSPS, or 0 ppm F/0% CSPS. Specimens were retrieved after either 21 (surface-softened lesions; analyzed by Knoop surface microhardness [SMH]) or 28 days (subsurface lesions; analyzed by transverse microradiography). The enamel fluoride uptake was determined for all specimens using a microbiopsy technique. The concentrations of fluoride and calcium in gauze-retrieved plaque were also evaluated. Higher dentifrice fluoride concentrations led to greater remineralization and fluoridation of both lesion types and increased plaque fluoride concentrations. CSPS did not improve the cariostatic properties of SMFP; there were no statistically significant differences between 927 ppm F/5% CSPS and 927 ppm F/0% CSPS in percent SMH recovery (p = 0.6788), change in integrated mineral loss (p = 0.5908), or lesion depth (p = 0.6622). Likewise, 0 ppm F/5% CSPS did not provide any benefits in comparison to 0 ppm F/0% CSPS. In conclusion, CSPS does not negatively impact nor does it improve the ability of an SMFP dentifrice to affect remineralization of caries lesions.
authors.affiliation: GSK Consumer Healthcare, Weybridge, Surrey, UK.
authors.forename: Charles R
authors.initials: CR
authors.lastname: Parkinson
authors.forename: Muhammad
authors.initials: M
authors.lastname: Siddiqi
authors.forename: Stephen
authors.initials: S
authors.lastname: Mason
authors.forename: Frank
authors.initials: F
authors.lastname: Lippert
authors.forename: Anderson T
authors.initials: AT
authors.lastname: Hara
authors.forename: Domenick T
authors.initials: DT
authors.lastname: Zero
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002327:Cariostatic Agents / Q000627:therapeutic use*; D018592:Cross-Over Studies; D003731:Dental Caries / Q000517:prevention & control*; D003802:Dentifrices; D004347:Drug Interactions; D005260:Female; D005459:Fluorides / Q000627:therapeutic use*; D005898:Glass; D006801:Humans; D008297:Male; D008875:Middle Aged; D010710:Phosphates / Q000627:therapeutic use*; D016037:Single-Blind Method
chemical_list: D002327:Cariostatic Agents; D003802:Dentifrices; C510984:NovaMin; D010710:Phosphates; C012980:fluorophosphate; D005459:Fluorides