Department of Conservative Dentistry, School of Dentistry, Dankook University, Korea.
Copyright © 2003 Korean Academy of Conservative Dentistry
P-60, Definite, Z-250 and Denfil had no further change of contraction shrinkage from the time of 20 seconds, and Surefil and Admira had no further change of contraction shrinkage from the time of 10 seconds.
Statistical analysis revealed volumetric shrinkage varied among material (p<0.05). No significant difference of contraction shrinkage among different curing times was found, and there was no effect of interaction between materials and curing times to contraction shrinkage.
Definite and Admira showed the statistically same contraction shrinkage with those of Z-250 and P-60, which is higher than that of Surefil and lower than that of Denfil (p<0.05).
Experiment Materials
Volumetric Contraction shrinkage after 80 Seconds with Various Curing Times
(%)
Variance Analysis of Volumetric Contraction Shrinkage after 80 Seconds with Various Curing Times
95% Scheffe Test of Volumetric Contraction Shrinkage of Various Materials (p<.05)
Volumetric Contraction Shirinkage of Various Materials with Time (Standard Deviation) (%)
(%)