Minimally invasive maxillary sinus augmentation with simultaneous implantation on an elderly patient: A case report

Figure 1 Preoperative cone-beam computed tomography and intraoral photograph. A: Preoperative cone-beam computed tomography; B: Intraoral photograph.

Figure 2 First-stage surgery. A and B: Nest preparation on the right; C and D: Bilateral internal maxillary sinus floor elevation; E: Platelet-rich fibrin (PRF) clots were compressed between sterile dry gauze; F and G: Established PRF membranes were placed in the primary elevated sinus floor; H and I: Implantation of the bovine bone graft material; J: Implant (4.3 mm × 10 mm, Nobel Active, Sweden) was implanted with a torque of 35 N·cm; K and L: Placement of a suitable cover screw; M: Stitches in the wound.

Figure 3 Cone-beam computed tomography after the first-stage surgery.

Figure 4 Six months after the first surgery.

Figure 5 Six months later, the second-stage surgery was performed and the cover screw was replaced with the healing cap.

Figure 6 Zirconia ceramic crowns were constructed. A-D: A painless 35 N·cm torque was added to put the abutment in place; E and F: Zirconium-ceramic crowns; G and H: Buccal view of the final prosthesis in place; I-K: Occlusal view of the final prosthesis in place.

Figure 7 One month after permanent restoration.

Figure 8 Patient was followed-up for 30 mo after the first stage surgery.