Impact of a Core Ferrule Design on Fracture Resistance of Teeth Restored with Cast Post and Core

Table 1

Summary of statistical results.

Group	Load; means (SD)	Displacement; means (SD)	Test of normality (Lilliefors)			Mann-Whitney strength test		Kruskal-Wallis test for displacement
			Fracture load	Displacement	Load and displacement Judgment 5%	P value; Judgment 5%		P value; Judgment 5%
			P values; Judgment 5%
1	1038.69 (243.52)	1.36 (0.31)	0.028	0.053	Absence of normal distribution	0.7675	No significant difference	0.7470	No significant difference
2	1078.89 (335.21)	1.44 (0.58)	0.008	0.003