After use of 6.0 mm profile drill (mainly for the mesial crest), a 5.5x5 mm healing abutment is placed (Fig.2).  The implant seems to be seated deep, but the implant is equicrestal lingually.  There is a thin lingually based septum at #31.

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Xin Wei, DDS, PhD, MS 1st edition 06/04/2020, last revision 06/04/2020