Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

Table 2

Maximal EQV stress (MPa) in supporting bone.

RBH (mm)	No graft		Low-stiffness graft		High-stiffness graft
	D3	D4	D3	D4	D3	D4
7	24.237	41.268	23.657	40.737	16.567	19.739
5	37.885	69.63	26.139	42.365	15.4	17.031
3	55.927	81.358	29.288	51.583	14.066	16.482