It would be better if a narrower implant (4 instead of 4.5 mm) were placed more lingually or there were < 4 mm implant thread exposure (Fig.9).  Is it the best to use a longer implant to be engaged to the cancellous bone to reduce compression necrosis?  The implant could be smaller (4.0 or 3.5 mm) and/or placed more lingual.

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Xin Wei, DDS, PhD, MS 1st edition 05/13/2020, last revision 06/25/2020