Since the bone density is not high, trajectory change is not attempted.  The ridge is wider within the socket.  A relatively large 2-piece implant (3.5x13 mm) is placed (Fig.3), but a 4x5.7(2) mm abutment is incompletely seated (<).  Use of 4.6 and 5.6 mm bone profile drills does not appear to solve the problem.  The implant is backed up to the supra-gingival level so that it seems easier physically to insert the same abutment into the implant securely.  Then both of them are torqued into the place together (Fig.4). 

Closure     Last     Next   Xin Wei, DDS, PhD, MS 1st edition 02/11/2020, last revision 02/12/2020