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

Table 1

Dimensions of structures in FE model [6, 14–17].

No.	Different parts in FE model	Dimensions (mm)
(1)	Tooth [14]
	(a) Root length	13.0 mm
	(b) Root diameter	6.0 mm (cervical)
(2)	Periodontal ligament [15]	0.2 mm (width)
(3)	Cortical bone [16]	1.2 mm (thickness)
(4)	Gutta Percha [17]	4.5 mm (length)
(5)	Endodontic post [17]
	Length	10.5 mm
	Diameter	1.5 mm (parallel post)
		0.6–1.5 mm (tapered post)
		10.5 mm (height)
(6)	Crown [17]	1.2 mm (thickness at cervical margin)
		2.0 mm (thickness at incisal edge)
(7)	Core [17]	6.5 mm (height) + 2 mm residual dentin
(8)	Ferrule design [6]	1.5 mm (length)