The implant (6.4x6 mm) is removed with a 7/8 mm trephine bur, followed by sticky allograft (Fig.2 *), PRF membrane and 6-month membrane.  In spite of the setback, the bone height increases from 3.9 mm to 11 mm due to sinus lift associated with the previous implant placement (Fig.2 L).

Shallow Last Next Xin Wei, DDS, PhD, MS 1st edition 05/21/2019, last revision 05/21/2019