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In case sinus membrane perforation, prepare PRF membranes for repair. The apex of the implant will be engaged to an apparent sinus septum for stability (Fig.4,5,7 arrowheads). Fig.4,5,6 are sagittal and coronal sections and 3-D image of Fig.3 without an implant at #2, while Fig.7 is the inferior view of Fig.6 (arrow). B: buccal.
Xin Wei, DDS, PhD, MS 1st edition 06/21/2019, last revision 07/04/2019