Horizontal Bone Augmentation of Alveolar Ridge

Elevation of the flap in the anterior region of atrophic maxilla to receive particulate autogenous bone mixed with deproteinized bovine bone graft (Group A) or Leukocyte-and-Platelet-Rich Fibrin (L-PRF) mixed with deproteinized bovine bone graft (Group B). In both groups, bone augmentations were covered with a collagen membrane stabilized with pins.

"The patients underwent Guided Bone Regeneration (GBR) procedures for the reconstruction of atrophic edentulous alveolar ridges and were divided into two groups according to the proposed treatment:~Group A - GBR using a mixture of particulate autogenous bone graft and deproteinized bovine bone graft (Bio-Oss® Small; Geistlich AG, Wolhusen, Switzerland).~Group B - GBR using a mixture of deproteinized bovine bone graft (Bio-Oss® Small) and L-PRF + Liquid Fibrinogen."

"After 8 months of GBR healing, dental implants were placed in the grafted regions using guided surgery techniques.~Cone beam computed tomography (CBCT) scans were performed preoperatively, immediately after the surgical procedure, and after 8 months of follow-up to measure the linear and volumetric changes in the alveolar ridge. At the time of dental implant placement, after an 8-month period following the GBR procedures, bone biopsies were obtained from the grafted area for histological and micro-CT analysis.~The stability of the implants was assessed using resonance frequency analysis in the immediate postoperative period and at 6 months postoperatively.~After the 6-month period following dental implant placement, the patients were cleared for implant-supported prosthetic rehabilitation."