Table 1.

Two-way analysis of variance (µm).

Source	Type III sum of squares	df	Mean square	F	Sig.
Corrected model	.554a	4	.139	3.212	.024
Intercept	24.513	1	24.513	568.337	.000
Impression material	.467	1	.467	10.834	.002
Impression tray	.087	3	.029	.671	.576
Error	1.510	35	.043
Total	2.064	39

^a R-squared.