During the deve4opment Phase of the teeth and facial structures, the upper and lower jaws may grow at different rates, resulting in an improper bite and incorrectly positioned jaw bones. When the lower jaw is overdeveloped or the upper jaw is underdeveloped, the lower jaw protrudes beyond the upper jaw. This condition is called a “prognathic jaw” or a Class III relationship. The chin is very prominent in a Class III relationship. In addition, many individuals also suffer from bite and jaw joint problems.
Along with the incorrectly positioned jaw bones, the teeth are also misaligned. This is called a Class III malocclusion. The lower teeth protrude beyond the upper teeth, making it difficult for the individual to bring their front teeth together. Treatment of this situation may be done with Orthodontics (braces) or may require Facial Surgery, depending on the severity of the condition.