The prevalence of dental erosion continues to increase throughout the world. Topical fluorides are primarily designed for caries prevention though research suggests they may assist in protection against erosion processes.
Objectives: The aim of this study was to evaluate the anti-erosive effect of selected fluoride formulations.
Methods: Human enamel specimens were assessed by surface hardness analysis, and stratified into 5 treatment groups (n=20). Seven day-treatment regimen included erosive acid attacks (coca-cola, pH 2.3; 4 x 2min/day) and applications following formulations: group AC - Apa Care toothpaste (1%nano HA + 1450 ppm F) - 2 x 2 min/day, group BM- Blend-a-Med toothpaste (1450 ppm F) - 2 x 2 min/day, group TMP - Tooth Mouse Plus (10%CPP-ACP + 900 ppm F) -1 x 3 min/day with Blend-a- Med toothpaste (1450 ppm F) - 2 x 2 min/day, group D - Duraphat (12600 ppm F) - 1 x /week with Blend-a Med toothpaste (1450 ppm F) - 2 x 2 min/day, and group P-placebo. Mixed human saliva was used as a remineralization medium. After cycling samples were re-tested for surface microhardness loss (%SMH), and tissue loss was evaluated via profilometry.
Results: Products used in group D and TMP were most effective in dental erosion protection. For microhardness measurements mean SMH loss (%) was: for group P -39,3 (±14,1), group BM - 23,6 (±12,8), group AC- 21,2(±10,8), group D - 14,6(±7,4), group TMP - 11,3(±5,9). The mean tissue loss was significantly lower in D and TMP groups - 19,4(±7,2)µm and 16,8(±5,9)µm, than in AC and BM groups - 23,7(±11,6)µm and 26,4(±13,2)µm, respectively.
Conclusions: Duraphat and TMP used in combination with regular toothpaste provide an additive anti-erosion effect as compared to regular toothpaste or Apa Care toothpaste applied alone.
The study were supported by NSC, Poland, grant nr: 6961/B/P01/2011/40