Although the 5 mm tap and 8 mm implant (Fig.5 I) appear to protrude into the sinus cavity, there is no air leakage. The implant appears to be supported by the native bone in the sinus (*).
Fig.6: 1 month 20 days postop.
Xin Wei, DDS, PhD, MS 1st edition 09/21/2015, last revision 11/17/2015