There is radiolucency around the implant (Fig.2 *).  It is painful to remove the provisional.  After local anesthesia, the implant is removed with the provisional.  Fortunately the osteotomy wall is intact.  After Metronidazole treatment, a 5x20 mm tap is placed with stability (Fig.3).   The nasal floor is penetrated once again.

Clearance from RPD

Xin Wei, DDS, PhD, MS 1st edition 03/07/2016, last revision 03/07/2016