. 2013 Aug 27;42(9):20130059. doi: 10.1259/dmfr.20130059

Table 3.

Summary of Euclidean distances between the first and second measures of Observer 2

Landmark^a	Galileos^® (n = 10)						Next Generation i-CAT^® (n = 10)						Wilcoxon rank-sum p-value^b
Landmark^a	Mean	Standard deviation	Median	Minimum	Maximum	Range	Mean	Standard deviation	Median	Minimum	Maximum	Range	Wilcoxon rank-sum p-value^b
A	1.33	0.7441	1.34	0.22	2.30	2.08	0.87	0.6807	0.69	0.14	2.56	2.42	0.1403
ANS	1.21	0.5489	1.24	0.36	2.01	1.65	0.81	0.3232	0.76	0.30	1.50	1.20	0.1041
B point	1.10	1.1314	0.78	0.00	3.96	3.96	1.11	0.9531	0.65	0.33	3.08	2.75	0.9097
Condylion	0.88	0.4143	0.81	0.36	1.66	1.30	1.29	0.8352	0.99	0.28	2.94	2.66	0.2730
Gonion	2.22	1.4223	2.01	0.97	5.97	5.00	2.17	2.6125	1.11	0.54	9.21	8.67	0.3447
Sella	1.14	0.3651	1.07	0.79	2.05	1.26	0.70	0.3329	0.76	0.28	1.22	0.94	0.0140
Sigmoid notch	0.66	0.3765	0.65	0.00	1.18	1.18	0.72	0.3189	0.66	0.22	1.35	1.13	0.8501
Lower molar	1.62	2.8720	0.71	0.50	9.78	9.28	0.78	0.3043	0.75	0.37	1.24	0.87	0.9698
Md1 root	1.06	0.4718	1.03	0.36	2.00	1.64	1.35	1.2494	0.86	0.44	4.53	4.10	0.9698
Md1 tip	0.76	0.2303	0.78	0.41	1.12	0.71	1.14	1.4264	0.79	0.32	5.12	4.81	0.9097
Me	1.74	0.9794	1.24	0.94	3.58	2.64	0.94	0.6970	0.81	0.28	2.65	2.36	0.0140
Mx1 root	1.13	0.5506	1.25	0.10	1.82	1.72	1.07	0.4657	0.91	0.51	1.67	1.16	0.8501
Mx1 tip	0.74	0.3515	0.75	0.28	1.32	1.03	0.75	0.3799	0.63	0.30	1.48	1.18	0.9698
Nasion	1.06	0.7877	0.78	0.22	2.71	2.49	1.58	1.5303	0.80	0.28	4.71	4.43	0.5706
Orbitale	1.55	1.3124	1.35	0.10	4.46	4.36	0.63	0.4805	0.53	0.00	1.67	1.67	0.0757
PNS	1.44	1.3110	0.83	0.20	4.04	3.84	1.53	1.5306	1.13	0.37	5.40	5.02	0.7913
Pog	1.83	1.8577	1.23	0.35	5.91	5.56	1.35	1.2704	0.98	0.37	4.51	4.14	0.7337
Upper molar	0.79	0.2704	0.83	0.36	1.22	0.86	0.99	0.4659	0.82	0.45	1.98	1.53	0.4274

^{^a}

See Table 1 for definitions of the landmarks.

^{^b}

Significance probability associated with the Wilcoxon rank-sum test to assess whether the distributions for the Euclidean distances differed between machines. Highlighting in bold indicates the significance value of <0.05.

Galileos is manufactured by Sirona Dental Systems Inc., Bensheim, Germany and Next Generation i-CAT by Imaging Sciences International, Hatfield, PA.