The buccal plate of the sites are existing, although that at #8 appears thinner. The palatal crest is the lowest with 3 mm subgingival. Initial depth of the osteotomy is 16 and 15 mm (the palatal gingival margin as landmark) at #8 and 9, respectively (Fig.3). After 4.1x12 mm SM implants are placed (Fig.4), they are placed .5-1 mm deeper (Fig.5); allograft (*) placed before and after insertion of 3.9x5.5(3) and 4.8x5.5(3) mm abutments.
Xin Wei, DDS, PhD, MS 1st edition 08/15/2017, last revision 09/14/2020