Maxillary sinus elevation procedures are widely used in oral surgery and implant dentistry in those cases with insufficient bone height resulting from bone atrophy and pneumatized maxillary sinuses, which precludes dental implant insertion.1
Sinus augmentation therapy generates sufficient bone height to enable the placement of posterior maxillary implants and, since its introduction by Boyne and James,2 has proved a highly predictable procedure.
The most common complication involved in sinus elevation augmentation is membrane perforation. The incidence of this event ranges from 10%–56%.3
The use of collagen membranes for sealing sinus perforations has been shown to be a predictable method for managing these complications.4 The classic mode uses a resorbable collagen membrane as a new wall, enabling accurate placement of the regeneration material and avoiding the displacement of the graft particles into the sinus cavity.5
In this context, we planned to devise a modification to...