With the 2nd redirection (Fig.6 (4.5 mm tap, mesial crest (<) much lower than the distal one)), a 4.5x12 mm implant is placed with 50 Ncm; bone graft is placed with emphasis on the palatal defect (Fig.7 *).  As usual, an immediate provisional is fabricated.   In fact the abutment may be not completely seated because of contact with the mesial crest (<).  After 5.5 mm profile drill 11 months postop, the abutment has no contact with the mesial crest (Fig.8 <).  Since the proximal contact between #3 and 4 is light with food impaction, the provisional at #5 is fabricated with tight distal contact.  When the patient returns for final crown cementation (Fig.9), the food impaction is minimal between #3 and 4.  The distal black triangle (Fig.10 *) and exposure of the abutment margin (^) are partially related to provisional fabrication and should dissolve over time considering socket shield.

Root Fracture Last Next  Xin Wei, DDS, PhD, MS 1st edition 03/03/2020, last revision 03/08/2020