Effect of NaF, SnF2, and TiF4 Toothpastes on Bovine Enamel and Dentin Erosion-Abrasion In Vitro

Abstract EN

The aim of this study was to compare the effect of toothpastes containing TiF4, NaF, and SnF2 on tooth erosion-abrasion.

Bovine enamel and dentin specimens were distributed into 10 groups (n=12): experimental placebo toothpaste (no F); NaF (1450 ppm F); TiF4 (1450 ppm F); SnF2 (1450 ppm F); SnF2 (1100 ppm F) + NaF (350 ppm F); TiF4 (1100 ppm F) + NaF (350 ppm F); commercial toothpaste Pro-Health (SnF2—1100 ppm F + NaF—350 ppm F, Oral B); commercial toothpaste Crest (NaF—1.500 ppm F, Procter & Gamble); abrasion without toothpaste and only erosion.

The erosion was performed 4 × 90 s/day (Sprite Zero).

The toothpastes’ slurries were applied and the specimens abraded using an electric toothbrush 2 × 15 s/day.

Between the erosive and abrasive challenges, the specimens remained in artificial saliva.

After 7 days, the tooth wear was evaluated using contact profilometry (μm).

The experimental toothpastes with NaF, TiF4, SnF2, and Pro-Health showed a significant reduction in enamel wear (between 42% and 54%).

Pro-Health also significantly reduced the dentin wear.

The toothpastes with SnF2/NaF and TiF4/NaF showed the best results in the reduction of enamel wear (62–70%) as well as TiF4, SnF2, SnF2/NaF, and TiF4/NaF for dentin wear (64–79%) (P<0.05).

Therefore, the experimental toothpastes containing both conventional and metal fluoride seem to be promising in reducing tooth wear.