CT coronal (Fig.3 (at the mesial root), 4 (septum), 5 (distal root)) sections show that a 6x11 mm tissue-level implant is to be placed.  Pay attention to the Inferior Alveolar Canal (orange) and the Submandibular Fossa (SF).  Osteotomy beyond the apices should be minimal.

IAC & SF

Xin Wei, DDS, PhD, MS 1st edition 10/18/2015, last revision 10/18/2015