Two complex bony structures like the maxilla and mandible are included in the jaw. CT scan dental jaw is a radiological exam which is free from pain and in this exam, lower and upper jaw is examined in a non-invasive manner. It comes under the scope of an oral surgeon or dentist. Temporomandibular joint is also called as joint of the jaw. This exam is used to evaluate the disorder of temporomandibular. This exam is also useful for bone-measurement for dental implants. Infection, tumour, injury and other types of disorders can be cured by it.