By the time definitive implants and abutments are placed, the axis of #3 is parallel to that of #4, but close to each other (Fig.2,3).  Vanilla graft is placed around the implant and abutment at #2 first (*).  In fact more bone is obtained when the trajectory is off.

Parallel Pins Last Next

Xin Wei, DDS, PhD, MS 1st edition 04/24/2018, last revision 09/30/2018