In spite of using a smaller cemented abutment, there is a gap between it and the implant, suggesting incomplete seating (Fig.4 < (use of sensor II)).  If the screw becomes loose in function, a 6.0 mm profile drill has to be used.  In fact the screw is loose when the opposing provisional is fabricated (i.e., 13 months post cementation).  After use of 5.5 mm profile drill, the crown/abutment is turned and reseated completely (Fig.5).  The mesial clearance is limited (^).  The crown will be repaired when the opposing permanent crown is cemented.

Switch Last Next

Xin Wei, DDS, PhD, MS 1st edition 03/16/2021, last revision 03/16/2021