Procedure Time and Students’ Perception Comparing Full Arch Digital Scans with Conventional Impressions: A Cross-Over Randomized Experimental Trial

Table 2

Comparison between conventional and digital impressions.

	Conventional impression		Digital impression		-value
Duration (in seconds)	All participants: Mean ± SD; 663.76 ± 442.50		All participants: Mean ± SD; 293.32 ± 181.49		<0.0001
	Female (46) 491.33 ± 226.34	Male (50) 822.40 ± 528.18	Female (46) 318.63 ± 191.18	Male (50) 270.04 ± 170.71	<0.0001
VAS score	All participants: Mean; 31.27 ± 26.07		All participants: Mean; 24.94 ± 24.72		0.0013
	Female 22.30 ± 19.98	Male 39.52 ± 28.39	Female 26.46 ± 25.16	Male 23.54 ± 24.48	0.0048
Preference	All participants: 23 of 96 (24%)		All participants: 73 of 96 (76%)
	Female 13 of 23 (57%)	Male 10 of 23 (43%)	Female 33 of 73 (45%)	Male 40 of 73 (55%)	0.1803^
The preferred initial procedure	All participants: 32 of 96 (33.3%)		All participants: 64 of 96 (66.7%)
	Female 15 of 32 (47%)	Male 17 of 32 (53%)	Female 31 of 64 (48%)	Male 33 of 64 (52%)	0.8381^

-value from the main effect of the mixed model. -value from the interaction term of the mixed model. ^-value from chi-square test.