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Effect of fluoride mouthrinses and stannous ions on the erosion protective properties of the in situ pellicle.

08:00 EDT 29th March 2019 | BioPortfolio

Summary of "Effect of fluoride mouthrinses and stannous ions on the erosion protective properties of the in situ pellicle."

The particular feature of this study is the investigation of effects of pure fluoride- or stannous ions based mouthrinses on the erosion protective properties and the ultrastructure of the in situ pellicle (12 volunteers). Experimental solutions were prepared either from 500 ppm NaF, SMFP, AmF or SnF or 1563 ppm SnCl, respectively. After 1 min of in situ pellicle formation on bovine enamel slabs, rinses with one of the preparations were performed for 1 min and intraoral specimens' exposure was continued for 28 min. Native enamel slabs and rinses with bidestilled water served as controls. After oral exposure, slabs were incubated in HCl (pH 2; 2.3; 3) for 120 s and kinetics of calcium- and phosphate release were measured photometrically; representative samples were analysed by TEM and EDX. All mouthrinses reduced mineral loss compared to the native 30-min pellicle. The effect was pH-dependent and significant at all pH values only for the tin-containing mouthrinses. No significant differences were observed between the SnF- and the SnCl-containing solutions. TEM/EDX confirmed ultrastructural pellicle modifications. SnF appears to be the most effective type of fluoride to prevent erosive enamel demineralisation. The observed effects primarily have to be attributed to the stannous ions' content.

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Journal Details

This article was published in the following journal.

Name: Scientific reports
ISSN: 2045-2322
Pages: 5336

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