Fig.2: Osteotomy is initiated in the mesial slope of the socket at #17 (yellow dashed line) with 1.6 mm for 11 mm from the gingival margin.  Red line: the Possible superior border of the Inferior Alveolar Canal.

As osteotomy increases in diameter, it has tendency to shift distally.  When an implant is placed, the coronal threads are exposed unavoidably.  Bone graft immediately distal to the implant is mandatory to prevent periimplantitis.

Secure Landmark for Osteotomy   Last   Next

Xin Wei, DDS, PhD, MS 1st edition 03/20/2017, last revision 12/28/2019