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

Table 2

The erosion-abrasion wear in the presence of the different toothpastes (μm).

Group	Enamel wear; mean (±sd)	Dentin wear; median (min–max)
Placebo	5.0 ± 0.9^a	10.8 (7.5–13.5)^a
NaF 1450 ppm F	2.9 ± 0.7^c	5.6 (3.6–9.1)^abcd
TiF4 1450 ppm F	2.3 ± 0.7^cd	2.9 (1.3–6.2)^de
SnF2 1450 ppm F	2.8 ± 1.1^c	3.9 (2.1–6.9)^cde
SnF2 (1100 ppm F) + NaF (350 ppm F)	1.7 ± 0.7^d	2.3 (1.2–3.7)^e
TiF4 (1100 ppm F) + NaF (350 ppm F)	1.5 ± 0.4^d	3.2 (1.0–5.8)^de
Pro-Health (Oral B)	2.9 ± 1.0^c	4.6 (3.0–7.9)^bcde
Crest (Procter & Gamble)	4.1 ± 0.9^ab	7.1 (4.3–10.0)^abc
Without toothpaste	4.1 ± 0.9^ab	7.7 (6.1–11.4)^ab
Only erosion	3.1 ± 0.9^bc	9.7 (4.7–12.9)^ab

Different letters indicate statistically significant differences among the groups (comparison within the same column, 𝑃<0.0001).