Fig. 2
From: Minimal invasive horizontal ridge augmentation using subperiosteal tunneling technique

Intraoral photographs of the bone graft site at the time of implant placement (one-stage procedure). a Four months after the bone graft. Good gingival healing is observed. b Periosteal elevation to expose implant placement site. c Two implants (#35, 36) are inserted in a previously grafted edentulous site and healing abutments are connected. d Simple interrupted sutures