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With placement of a 4x11.5 mm implant equicrestal lingually, a 4.5x6(2) mm temporary abutment is unable to be seated incompletely (Fig.4 black <) because of proximal crestal interference (white arrowheads). After use of a 5.5 mm profile drill, a 5.5x5 mm healing abutment is apparently seated completely (Fig.5). Upon close look, the abutment at #19 is also incompletely seated. A 6.8x4 mm healing abutment is later placed at #19.
Xin Wei, DDS, PhD, MS 1st edition 01/09/2020, last revision 04/12/2020