Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis

Table 3

Inter group comparison between Control and Experimental groups using Tukey HSD post hoc test.

GROUP (I)		Mean difference (I-J)	Std. error	95% confidence interval		value
				Lower bound	Upper bound
Control	Cast metal post and core	−205.967	13.58348	−241.6481	−170.2859	0.001
	Custom composite post and core	−110.4445	13.58348	−146.1256	−74.7634	0.001
	Fiber post and composite core	−52.2295	13.58348	−87.9106	−16.5484	0.001
Cast metal post and core	Control	205.967	13.58348	170.2859	241.6481	0.001
	Custom composite post and core	95.5225	13.58348	59.8414	131.2036	0.001
	Fiber post and composite core	153.7375	13.58348	118.0564	189.4186	0.001
	Control	110.4445	13.58348	74.7634	146.1256	0.001
	Cast metal post and core	−95.5225	13.58348	−131.2036	−59.8414	0.001
	Fiber post and composite core	58.215	13.58348	22.5339	93.8961	0.001
Fiber post and composite core	Control	52.2295	13.58348	16.5484	87.9106	0.001
	Cast metal post and core	−153.7375	13.58348	−189.4186	−118.0564	0.001
	Custom composite post and core	−58.215	13.58348	−93.8961	−22.5339	0.001