A layer of new bone forms on the top of the implant 3 months postop (Fig.4 *).  It is removed with surgical handpiece.  After use of 5.6 mm profile drill, a 6x4 mm healing abutment is placed with minimal clearance from the mesial crest (Fig.5 *).  

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Xin Wei, DDS, PhD, MS 1st edition 02/05/2020, last revision 03/06/2020