Table 1. Measurement errors of the three models and comparison between the three models, for each measurement: p-value and 95% confidence interval.

	plaster cast		scanned plaster cast		scanned impression		p-value								95% Confidence Interval
measurements	meanerror	SE oferror	meanerror	SE oferror	meanerror	SE oferror	plaster vsscannedplaster		plaster vsscannedimpression			scannedplaster vsscannedimpression			plaster vsscanned plaster				plaster vsscannedimpression			scanned plastervs scannedimpression
A–B	0.086	0.007	0.040	0.008	0.034	0.004	0.002	*		0.000	*		0.592			[0.022	…	0.072]	[0.033	…	0.070]	[−0.016	…	0.026]
B–C	0.109	0.008	0.068	0.010	0.041	0.005	0.011	*		0.000	*		0.037	*		[0.012	…	0.069]	[0.045	…	0.090]	[0.002	…	0.051]
C–D	0.108	0.014	0.042	0.005	0.031	0.003	0.002	*		0.000	*		0.095			[0.032	…	0.101]	[0.045	…	0.110]	[−0.002	…	0.024]
D–E	0.107	0.012	0.032	0.003	0.044	0.007	0.000	*		0.002	*		0.169			[0.047	…	0.105]	[0.031	…	0.096]	[−0.031	…	0.006]
A–C	0.092	0.016	0.063	0.009	0.056	0.006	0.138			0.055			0.484			[−0.011	…	0.069]	[−0.001	…	0.074]	[−0.016	…	0.031]
C–E	0.084	0.006	0.073	0.007	0.063	0.008	0.265			0.071			0.394			[−0.010	…	0.032]	[−0.002	…	0.044]	[−0.015	…	0.034]
A–E	0.119	0.014	0.046	0.009	0.066	0.010	0.002	*		0.013	*		0.183			[0.035	…	0.110]	[0.014	…	0.092]	[−0.049	…	0.011]
B–D	0.128	0.012	0.116	0.015	0.093	0.007	0.562			0.030	*		0.186			[−0.031	…	0.054]	[0.004	…	0.065]	[−0.014	…	0.061]
F–G	0.074	0.017	0.033	0.004	0.027	0.004	0.045	*		0.025	*		0.266			[0.001	…	0.080]	[0.008	…	0.087]	[−0.006	…	0.019]
G–H	0.099	0.009	0.079	0.008	0.042	0.007	0.127			0.001	*		0.007	*		[−0.007	…	0.046]	[0.031	…	0.081]	[0.013	…	0.061]
H–I	0.090	0.008	0.062	0.008	0.031	0.005	0.035	*		0.000	*		0.010	*		[0.002	…	0.053]	[0.039	…	0.081]	[0.010	…	0.054]
I–J	0.077	0.011	0.049	0.008	0.030	0.004	0.072			0.003	*		0.064			[−0.003	…	0.058]	[0.020	…	0.072]	[−0.001	…	0.039]
F–H	0.067	0.017	0.074	0.007	0.055	0.004	0.726			0.522			0.050			[−0.048	…	0.035]	[−0.028	…	0.051]	[0.000	…	0.036]
H–J	0.060	0.013	0.095	0.008	0.052	0.005	0.048	*		0.555			0.002	*		[−0.069	…	0.000]	[−0.022	…	0.039]	[0.021	…	0.065]
F–J	0.117	0.020	0.051	0.007	0.055	0.012	0.012	*		0.026	*		0.743			[0.019	…	0.113]	[0.009	…	0.114]	[−0.035	…	0.026]
G–I	0.127	0.012	0.107	0.009	0.072	0.005	0.202			0.002	*		0.007	*		[−0.013	…	0.053]	[0.027	…	0.084]	[0.012	…	0.058]