On the other hand, when the abutment is placed first (Fig.11), bone graft to be placed should be limited (Fig.12,13 white circles).  The most important area to have bone graft (the coronal threads of the implant) cannot be reached.

2-Step Grafting

Xin Wei, DDS, PhD, MS 1st edition 03/11/2016, last revision 01/19/2018