Jaw abnormality sagittally divides the face into five equal parts: It is insufficient to derive at a diagnosis of jaw deformity solely based on the clinical examination. Hence, additional information is gathered from diagnostic tests, which may include dental model analyses and radiographic imaging studies. Mandibular micrognathia is the condition when lower jaw is smaller than normal. Failure of the ramus to develop will give rise to micrognathia.<ref name="Elsevier/Churchill Livingstone"></ref> Micrognathia can be classified as either congenital or acquired. Clinical appearance of some patients with congenital type of mandibular micrognathia can have a severe retrusion of the chin but by actual measurements,
Jaw wiring Jaw wiring Jaw wiring is a medical procedure to keep the jaw closed for a period of time. Originally, it was used as the mandibular equivalent of a cast, to fix the jaw in place while a fracture healed. Today, jaws may also be wired for weight-loss purposes, to prevent the ingestion of solid food. Jaw wiring is performed by attaching orthodontic brackets to the teeth, and wrapping pliable wire either around or through the brackets. The wiring may be configured to place the patient’s lower jaw in a semi-closed resting position. This permits a moderate amount of jaw movement