Table 3. Tukey’s HSD post hoc test for multiple comparisons.

*Significant difference (P<0.05). HSD: Honest Significant Difference

Material	Variable	Technique (A)	Technique (B)	Mean difference (A-B)	P
Polyvinyl siloxane	Error rate for angulated implants (%)	Closed tray	Open tray	0.6551	0.006*
		Closed tray	Open tray with sandblasting and adhesive coating of impression copings	0.8294	0.001*
		Open tray	Open tray with sandblasting and adhesive coating of impression copings	0.1744	0.641
Vinylsiloxanether	Error rate for parallel implants (%)	Closed tray	Open tray	0.2508	0.073
		Closed tray	Open tray with sandblasting and adhesive coating of impression copings	0.4081	0.002*
		Open tray	Open tray with sandblasting and adhesive coating of impression copings	0.1573	0.333