Fig.7: An 7x17 mm tapered implant is engaged into the sinus floor (^) with insertion torque 45 Ncm. The large implant is obliterating the mesial socket (*). Since the sinus membrane is found to be perforated, no bone graft is used for sinus lift.
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Xin Wei, DDS, PhD, MS 1st edition 04/27/2013, last revision 04/27/2014