There is no bone height reduction after extraction of #15 (Fig.5, as compared to the immediate site of #2).    With socket preservation, a longer implant will be placed at #2 (Fig.6, as compared 8.5 mm at #15 without bone graft).

Sinus Lift With Extraction     Last     Next

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Xin Wei, DDS, PhD, MS 1st edition 03/10/2020, last revision 09/29/2020