The Iliac crest is the superior part of the Ilium, which is the largest of the three bones that make up the pelvis. It can serve as a site of autogenous bone grafts for dental work. Patients may require a bone graft following some dental procedures and prior to receiving implants or prostheses. The Iliac crest is often a good location from which to harvest bone for dental bone grafts. The Iliac crest also has medical implications, as both the latissimus dorsi and gluteus maximus originate in this area. These major muscles can cause pain or discomfort in the iliac crest due to strain, injury, or tension. Issues with these muscles or with the Iliac crest itself may become obvious when an individual experiences pain after sitting.