Table 2.

Comparison between the presence and absence of moisture based on deviations observed in surface analysis

IOS	Arch	Moisture conditions	Mean±SD	SE	CI		t	P
					Lower bound	Upper bound
Parallel confocal microscopy	Upper	Presence of moisture	0.55±0.14	0.05	0.40	0.70	0.46	0.65
		Absence of moisture	0.60±0.17	0.07	0.42	0.78
	Lower	Presence of moisture	0.42±0.14	0.05	0.27	0.57	0.02	0.97
		Absence of moisture	0.42±0.15	0.06	0.26	0.58
3D in motion video technology with triangulation	Upper	Presence of moisture	0.41±0.13	0.05	0.26	0.55	0.37	0.71
		Absence of moisture	0.37±0.15	0.06	0.21	0.54
	Lower	Presence of moisture	0.23±0.07	0.02	0.16	0.31	0.91	0.38
		Absence of moisture	0.20±0.04	0.02	0.15	0.25

P value derived from paired sample t-test. 3D: Three dimensional, CI: Confidence interval, SE: Standard error, SD: Standard deviation, IOS: Intraoral scanner