Fig. 6From: Influence of the contact area of the sub-antral space with sinus bone and the Schneiderian membrane on osteogenesis in lateral window sinus elevation surgery: a prospective experimentComparison of the contact area between sub-antral space and sinus bone after sinus membrane elevation for maxillary sinus with different contours. Yellow line represents the contact area. A: narrow tapered, B: squareBack to article page