For dental rehabilitation with endosteal implants, bone augmentation is often necessary to ensure long-term restoration of aesthetics and masticatory function. The donor region is determined based on the degree of bone atrophy; for extensive defects, vascularized pedicle grafts are indicated. In patients with skeletal anomalies, orthognathic surgical measures are additionally required. If no other treatment option (e.g., short implants, zygomatic implants, or a fixed bridge on four angulated implants) is possible, iliac crest grafts represent a viable alternative.