The bony defect (Fig.2) will be filled with allograft mixed PRF liquid to form sticky bone (Fig.3,4), followed by PRF membrane (not shown) and a piece of 6-month membrane (Fig.5).  A hole is cut so that the 6-month membrane can slide down the abutment (Fig.2,5 A) to cover the bone graft around the implant (Fig.2,7 I).  六个月吸收膜：补偿PRF膜容易吸收缺点。

Sticky Bone Last Next

Xin Wei, DDS, PhD, MS 1st edition 05/20/2019, last revision 11/29/2020