“…Chronic fibrosing osteomyelitis of the jaws (CFO) is the most recent name for a painful condition which may affect one or more segments of the jaws. 1 Similar (perhaps in some cases identical) conditions have been previously reported and studied under a variety of names, including Ischemic Osteonecrosis, 2 Bone Marrow Edema Syndrome, 3 Neuralgia Inducing Cavitational Osteonecrosis (NICO), 4,5 Ratner Bone Cavity, 6 and Alveolar Cavitational Osteopathosis 7 . Because of its atypical pain pattern, the frequent lack of or unclear findings on routine plane plain (periapical or panographic) radiographs and the fact that the pain often mimics dental-related pain, this condition often goes unrecognized by health care providers.…”