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.
Box plot showing maximum frictional coefficients between metal, polycarbonate, and ceramic brackets in association with different wires: A) Stainless steel wire; B) Titanium-molybdenum alloy (TMA) wire. Simple analysis of variance (ANOVA) and Tukey’s test as post hoc multiple comparison test at confidence interval of 95% (* p<0.05)
