After insertion of a 5.5x9 mm dummy implant (Fig.2), a 6x9 mm implant is placed with sinus lift (Fig.3 <). The 6x9 mm implant appears to be placed subcrestal (Fig.3), but BW shows the other way.
Xin Wei, DDS, PhD, MS 1st edition 06/16/2017, last revision 02/16/2019