Alveolar Crestal Approach for Maxillary Sinus Membrane Elevation with <4 mm of Residual Bone Height: A Case Report

Figure 2

Implant treatment procedure. (a) Preoperative image; (b) immediately after full-thickness flap elevation; (c) maxillary sinus membrane elevation using a rotary-grind bur; (d) implant fixture placement; (e) suture with 4-0 Ethilon; (f) suture removal after 1 week; (g) the second surgery; and (h) final prosthesis loading.