A = The lateral cortical bony window is dissected free and removed from the underlying Schneiderian membrane, which is carefully elevated from the maxillary sinus floor to create a compartment for placement of the graft material.
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A = The lateral cortical bony window is dissected free and removed from the underlying Schneiderian membrane, which is carefully elevated from the maxillary sinus floor to create a compartment for placement of the graft material.
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