The buccal portion of the root (Fig.2-6 R, half-moon shaped) remains in place while a 3.5x13 mm implant is placed in the palatal portion of the socket (>50 Ncm).  In fact the root is trimmed slightly subcrestal (Fig.6 C).

Hard Bone Last Next Xin Wei, DDS, PhD, MS 1st edition 09/28/2018, last revision 09/28/2018