A Modification to Schneiderian Membrane Perforation Repair Technique: The Hammock Approach

Figure 1. Schneiderian membrane perforation. Figure 2. Horizontal perforations through palatal mucosa. Figure 3. Horizontal perforations through buccal sinus wall. Figures 4 and 5. Pulling the collagen membrane from the palatal perforations into the cavity, thanks to the nonresorbable suture.

Figure 6. Collagen membrane placed as a new ceiling of the regenerating cavity. Figure 7. Final fixation and immobilization of the collagen membrane in the buccal site with resorbable suture. Figure 8. Resorbable collagen membrane placement sutured to a double perforation of the buccal sinus wall and palatal mucosa and sinus wall. Figures 9 and 10. Sinus cavity filling with the chosen bone graft.