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. 2015 Jan-Feb;23(1):56–63. doi: 10.1590/1678-775720130445

Table 2. Mean (mm) and Standard Deviation (SD) of linear measurements for dry mandibles compared to cone-beam computed tomography (CBCT) images with different voxel sizes [analysis of variance (ANOVA) for repeated measures and Dunnett’s tests].

	Physical measurement		Multiplanar images						3D model images
Variable	G1		G2			G3			G4			G5			P
			0.2 voxel			0.4 voxel			0.2 voxel			0.4 voxel
	(n=10)		(n=10)			(n=10)			(n=10)			(n=10)
	Mean	SD	Mean	SD	MD	Mean	SD	MD	Mean	SD	MD	Mean	SD	MD
C^R – C^L	101.03	3.98	101.15	4.15	0.11	100.97	4.01	-0,06	101.12	4.06	0,09	101.18	4.26	0.14	0.697
Mf^R – Mf^L	49.17^A	3.03	47.91^B	2.98	-1.26	47.91^B	2.81	-1,26	47.16^B	2.64	-2,01	47.76^B	3.01	-1.42	0.000*
C^R – Mf^R	76.43^A	4.71	76.50^A	4.42	0.07	76.24^A	4.17	-0,18	75.59^B	4.60	-0,84	75.51^B	4.49	-0.92	0.000*
C^R – Mf^L	104.41^A	4.63	103.82^B	4.79	-0.58	103.56^B	4.26	-0,85	102.76^B	4.38	-1,64	103.10^B	4.47	-1.31	0.000*
C^L – Mf^L	75.16^A	3.99	75.66^A	3.64	0.50	75.69^A	3.58	0,53	74.48^B	3.46	-0,68	74.25^B	3.30	-0.91	0.000*
C^L – Mf^R	102.65^A	3.92	102.44^A	4.02	-0.21	102.33^A	3.76	-0,32	101.29^B	3.90	-1,36	101.38^B	3.81	-1.27	0.000*
MCo – LCo^R	21.42^A	2.43	21.68^A	2.28	0.26	21.69^A	2.28	0,26	19.61^B	2.08	-1,81	20.07^B	2.19	-1.35	0.000*
MCo – LCo^L	21.37^A	2.05	21.28^A	1.67	-0.09	21.02^A	1.68	-0,34	19.31^B	1.82	-2,06	19.14^B	1.74	-2.23	0.000*
LCo^R – LCo^L	124.25^A	4.05	124.00^A	4.03	-0.25	123.78^A	4.10	-0,47	122.73^B	4.21	-1,53	122.74^B	4.04	-1.51	0.000*
MCo^R – MCo^L	83.87	3.09	84.07	2.86	0.20	84.13	2.97	0,26	84.07	2.81	0,2	83.76	2.98	-0.11	0.251

SD, Standard Deviation; MD, Mean difference

^*

Statistically significant

Different letters represent statistically significant differences (Dunnett’s test)