After placement of bone graft (Fig.2,3 *) and collagen dressing (Fig.4 <, Impladent), the provisional is temporarily cemented (P).  B: buccal portion of the gingiva, which used to be situated between the mesial and distal residual roots.

Safe Margin

Xin Wei, DDS, PhD, MS 1st edition 12/28/2014, last revision 12/31/2014