With reuse of a 4.6 mm profile drill, the abutment is fully seated (Fig.6), confirmed clinically by more clearance from the opposing tooth (Fig.7).  Complete occlusal clearance is obtained by reduction of the opposing cusps without sensitivity since the tooth is nonvital (*).

Profile Drill     Last     Next Xin Wei, DDS, PhD, MS 1st edition 09/02/2020, last revision 09/04/2020