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European Archives of Paediatric Dentistry

, Volume 15, Issue 4, pp 237–243 | Cite as

The protective effect of SnF2 containing toothpastes and solution on enamel surfaces subjected to erosion and abrasion in situ

  • L. H. HoveEmail author
  • K. R. Stenhagen
  • B. Holme
  • A. B. Tveit
Original Article

Abstract

Background

Stannous fluoride solutions have shown promising protective effect against erosion/abrasion, but the effect of SnF2 toothpastes is uncertain.

Aim

The aim of the study was to test the inhibiting effect of two SnF2 toothpastes and a SnF2 solution against erosive/abrasive wear in a single-blind, randomised in situ study, using a white light interferometer.

Methods

Sixteen human molars were each divided into four specimens, mounted on mouth appliances and worn by 8 volunteers for 9 days. Specimens were brushed with toothpaste twice each day for 30 s either with fluoride-free toothpaste or toothpastes including SnF2. Toothpaste was left on the surface for 90 additional seconds. Group 1, fluoride-free toothpaste; Group 2, toothpaste A (0.4 % SnF2, Solidox); Group 3, toothpaste B (0.454 % SnF2, Oral-B®); Group 4, brushed with fluoride-free toothpaste (30 s) and treated for 2 min with a 0.4 % SnF2 solution (1,000 ppm F). To mimic gastric reflux/vomit, specimens were etched for 2 min twice a day (0.01 M HCl). Procedures were performed extra-orally.

Results

The mean enamel wear (in μm) for the control specimens was: −29.2 ± SD 10.5; for group 2 −14.5 SD ± 9.3; for group 3 −33.3 SD ± 7.4, and for group 4 +0.4 SD ± 1.3. The specimens treated with SnF2 solution and toothpaste A showed significantly lower enamel wear than the control group. Toothpaste B gave no significant reduction in enamel wear.

Conclusions

The SnF2 solution fully protected the enamel surface against erosive and abrasive challenges. The SnF2 toothpaste A (Solidox) showed less, but significant protection of the enamel, while no statistically significant protection was demonstrated by SnF2 toothpaste B (Oral-B® Pro-Expert).

Keywords

Dental erosion In situ Toothpaste SnF2 

Notes

Acknowledgments

The study was funded by Grants from the University of Oslo and a small contribution from Lilleborg AS. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

Conflict of interest

There are no conflicts of interest.

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Copyright information

© European Academy of Paediatric Dentistry 2014

Authors and Affiliations

  • L. H. Hove
    • 1
    Email author
  • K. R. Stenhagen
    • 1
  • B. Holme
    • 2
  • A. B. Tveit
    • 1
  1. 1.Department of Cariology and Gerodontology, Faculty of Dentistry, Institute of Clinical DentistryUniversity of OsloOsloNorway
  2. 2.SINTEF Materials and ChemistryOsloNorway

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