A 3x14 mm 15 degree angled 1-piece dummy implant is able to establish the correct trajectory, but there is no occlusal clearance (Fig.18).  Micromovement during osteointegration may recreate loosening.  Finally using Lindamann bur, the osteotomy is changed so that a 3.5x13 mm 2-piece implant does not need an angled abutment to establish occlusion (Fig.19).  There is one palatal thread exposure.  Allograft is placed circumferentially, followed by Human Amnion-Chorion Allograft and Collagen Plug.

Graft Before Implant Last Next

Xin Wei, DDS, PhD, MS 1st edition 09/24/2019, last revision 10/05/2019