Impact of different CAD/CAM materials on internal and marginal adaptations and fracture resistance of endocrown restorations with: 3D finite element analysis

Table 4 Comparison of internal and marginal discrepancies (μm) between different groups

Internal discrepancy		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference		P-Value
Internal discrepancy		Mean	Std. Deviation	Std. Error Mean	Lower	Upper	P-Value
Pair 1	Vita—Nacera	13.87500	8.48712	2.68386	7.80368	19.94632	0.001
Pair 2	Nacera—Zirconia	-31.02500	5.10508	1.61437	-34.67695	-27.37305	0.000
Pair 3	Zirconia—PEKK	19.73750	5.61757	1.77643	15.71893	23.75607	0.000
Pair 4	Vita—PEKK	2.58750	7.32719	2.31706	-2.65405	7.82905	0.293
Pair 5	Vita—Zirconia	-17.15000	7.55370	2.38869	-22.55359	-11.74641	0.000
Pair 6	Nacera—PEKK	-11.28750	4.19327	1.32603	-14.28718	-8.28782	0.000
Marginal discrepancy		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference		P-Value
Marginal discrepancy		Mean	Std. Deviation	Std. Error Mean	Lower	Upper	P-Value
Pair 1	Vita – Zirconia	-16.10000	15.68403	4.95973	-27.31968	-4.88032	0.010
Pair 2	Vita—PEKK	8.07500	14.43282	4.56406	-2.24962	18.39962	0.111
Pair 3	Vita—Nacera	4.17500	11.54704	3.65149	-4.08525	12.43525	0.282
Pair 4	Zirconia—PEKK	24.17500	4.45666	1.40932	20.98690	27.36310	0.000
Pair 5	Zirconia—Nacera	20.27500	7.98823	2.52610	14.56057	25.98943	0.000
Pair 6	PEKK—Nacera	-3.90000	8.54010	2.70062	-10.00922	2.20922	0.183

ISSN: 1472-6831