Table 3.

One-sample t test showing the dispersion of the measurements and relative differences of each group measurement against the test values of the Articulated Master model.

	t(df)	Mean diff. (95% CI)	P value#
1. Anterior Vertical Test Value (Master model)=24.660
AL(C)	2.89(9)	0.17 (0.04, 0.30)	0.018*
AL(E)	−0.62(9)	−0.04 (−0.17, 0.10)	0.551 (NS)
AL(F)	1.28(9)	0.06 (−0.05, 0.17)	0.233 (NS)
3D-C	3.72(9)	0.38 (0.15, 0.62)	0.005**
2. Posterior Vertical Test Value (Master model)=20.416
AL(C)	9.00(9)	0.42 (0.31, 0.53)	0.001**
AL(E)	5.96(9)	0.23 (0.14, 032)	0.001**
AL(F)	2.90(9)	0.20 (0.04, 0.35)	0.018*
3D-C	6.89(9)	0.56 (0.38, 0.75)	0.001**
3. Anterior-Posterior Test Value (Master model)=26.711
AL(C)	4.53(9)	0.34 (0.17, 0.51)	0.001**
AL(E)	1.07(9)	0.08 (−0.09, 0.25)	0.313 (NS)
AL(F)	3.65(9)	0.27 (0.10, 0.43)	0.005**
3D-C	3.70(9)	0.27 (0.11, 0.44)	0.005**

AL(C) – conventional alginate; AL(E) – extended pour alginate; AL(F) – alginate free; 3D-C – three-dimensional printed cast; df – degree of freedom; CI – confidence interval.

^#One way ‘t’ test. Levels of significance: NS (not-significant) =P≥0.05;

^*Significant=P≤0.05;

^**Very significant=P≤0.01;

^***Highly significant=P≤0.001.