Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea.
Copyright © 2007 Korean Academy of Conservative Dentistry
Superscripts of the other letter indicate values of statistical significant difference by Tukey HSD and t test (p < 0.05).
Superscripts of the other letter indicate values of statistical significant difference by Tukey HSD and t test (p < 0.05).