Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Percentage (mean ± standard deviation) of Vickers microhardness variation of enamel treated with test and control dentifrices and negative control groups.
| Groups | Enamel microhardness variation (%) |
|---|---|
| NSF dentifrice | −11.07 ± 19.94(a) |
| NaF dentifrice | −0.34 ± 26.16(a) |
| Deionized water | −77.95 ± 26.30(b) |
Kolmogorov–Smirnov test: p=0.297. Different letters in superscript means statistically significant difference among variables.
