A Comparative Study of the Stress Distribution in Different Endodontic Post-Retained Teeth with and without Ferrule Design—A Finite Element Analysis

Table 6

Comparison of stress* distribution with different posts having ferrule and nonferrule design in the cervical dentin.

Materials	Load^†	Tapered post		Parallel post
		Ferrule	Nonferrule	Ferrule	Nonferrule
Ti	V	3.489	3.485	3.489	3.485
	O	18.87	13.87	18.83	13.83
	H	25.49	19.06	25.48	19.02
Ni-Cr	V	2.555	2.555	2.555	2.555
	O	12.52	12.51	11.95	13.36
	H	17.21	17.19	18.43	18.68
FRC	V	3.510	3.505	3.510	3.505
	O	19.57	14.47	19.54	14.46
	H	25.77	19.69	25.73	19.68

*Maximum Von Mises stress in MPa.
^†V—vertical load; O—oblique load (45° angle); H—horizontal load.