Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva

Table 1

Discrepancy results from superimposition of reference and scanned images (mm).

	Bracket (B) Mean ± std. dev							value	(A) × (B)
	Scanner (A)	Nonbracket	Ceramic	Metal	Resin	Average values	Scanner	Bracket
Max	CS3600	0.60 ± 0.08^cB	0.61 ± 0.08^cC	0.96 ± 0.04^aC	0.86 ± 0.04^bC	0.758 ± 0.170C		<0.001
	i500	0.82 ± 0.05^bAB	0.85 ± 0.08^bBC	1.15 ± 0.06^aB	1.08 ± 0.15^aB	0.975 ± 0.172B		<0.001
	Trios3	0.65 ± 0.03^dB	0.75 ± 0.06^cBC	0.97 ± 0.01^bC	1.05 ± 0.05^aB	0.854 ± 0.166C		<0.001
	Omnicam	1.03 ± 0.37^bA	1.20 ± 0.29^abA	1.26 ± 0.03^abA	1.49 ± 0.13^aA	1.247 ± 0.286A		0.002
	value	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	0.010
	Average	0.776 ± 0.250^b	0.853 ± 0.269^a	1.086 ± 0.132^b	1.119 ± 0.255^a			<0.001
Mean	CS3600	0.063 ± 0.015^a	0.062 ± 0.014^aA	0.019 ± 0.008^bB	0.074 ± 0.008^aA	0.055 ± 0.024		<0.001
	i500	0.036 ± 0.005^bc	0.040 ± 0.008^abB	0.028 ± 0.008^cA	0.046 ± 0.009^aB	0.037 ± 0.152		<0.001
	Trios3	0.056 ± 0.006^b	0.061 ± 0.011^bA	0.007 ± 0.007^cC	0.081 ± 0.007^aA	0.051 ± 0.029		<0.001
	Omnicam	0.008 ± 0.017^b	0.027 ± 0.009^abB	0.006 ± 0.009^bC	0.079 ± 0.015^aA	0.030 ± 0.064		0.031
	value	0.172	<0.001	<0.001	<0.001	0.579	<0.001	<0.001	0.507
	Average	0.041 ± 0.061^bc	0.048 ± 0.019^ab	0.015 ± 0.018^c	0.070 ± 0.142^a			<0.001

: Max: mean maximum discrepancy values. The maximum discrepancy of the superimposed data of two images. Mean: mean discrepancy values. The average of discrepancy values throughout the 3D comparison. 2-Way ANOVA was used for statistical analysis. a >b > c > d:superscript lowercase letters indicate statistically significant differences between brackets. A > B > C > D: subscript uppercase letters indicate statistically significant differences between scanners.