COMPUTER-GUIDED VERTICAL AND HORIZONTAL BONE REGENERATION WITH RESORBABLE CUSTOMIZED BONE LAMINAS FILLED WITH 100% PARTICULATE AUTOLOGOUS BONE: A CASE REPORT

PURPOSE. To describe a case of novel computer-guided bone regeneration (CGBR) tech-nique used for vertical and horizontal reconstruction of atrophic edentulous maxilla with customized rigid bone laminas filled with 100% particulate bone. MATERIALS AND METHODS. A healthy female requested an implant-supported fixed prosthesis for rehabilitation of a completely edentulous maxilla. The patient reported pain and discomfort with her complete removable denture, due to severe bone atrophy, and presented a horizontal and vertical bone defect. After virtual prosthetic planning, a 3D bone augmentation procedure was planned. Bone reconstruction was performed using two separate customized bone laminas filled with 100% autologous bone. Nine months after healing, six implants were installed, and three months later a full gingival graft was performed on the maxilla. A titanium resin screw-retained prosthesis was then fitted, and bone volume and linear dimensional changes were measured. RESULTS. Seven months after augmentation, part of the left lamina had become exposed, albeit with no graft infection. However, one year after loading no implant had failed and the prosthesis was deemed successful. The mean volumetric bone augmentation was 1.583 cm3. Mean horizontal bone augmentation was 6.3 mm, while mean vertical bone augmentation was 5.5 mm. CONCLUSIONS. The stable results one year after loading should prompt randomized controlled trials to verify the potential clinical advantages of the approach described.