Department of Conservative Dentistry, College of Dentistry, Pusan National University, Korea.
Copyright © 2004 Korean Academy of Conservative Dentistry
In the middle area, group B and group C showed less smear layer than group A, and it was statistically significant (p < 0.05).
In the middle area, group B showed greater smear layer than group C, but it was not statistically significant (p > 0.05).
In the apical area, group C showed less smear layer than group A, and it was statistically significant (p < 0.05).
In the apical area, group A showed greater smear layer than group B, but it was not statistically significant (p > 0.05).
In the apical area, group B showed greater smear layer than group C, but it was not statistically significant (p > 0.05).
In all groups, the middle area was less smear layer than the apical area, and it was statistically significant (p < 0.05).