When left untreated, many orthodontic problems become worse. Treatment to correct the original problem is often less costly than the additional dental care required to treat more serious problems that can develop in later years.

The value of an attractive smile should not be underestimated. Treatment may reduce appearance-consciousness, during the critical developmental years. Appearance can have an effect on popularity, social behavior, self-expectations, personality style, self-confidence and self-image. For children, orthodontic therapy may lessen the likelihood that he/she will be teased or picked on by other children.

Only dentists who have successfully completed this advanced specialty education may call themselves orthodontists.

Acquired malocclusions can be caused by trauma (accidents), thumb, finger or pacifier sucking, airway obstruction by tonsils and adenoids, dental disease or premature loss of primary (baby) or permanent teeth. Whether inherited or acquired, many of these problems affect not only alignment of the teeth but also facial development and appearance as well.

Overjet or protruding upper teeth: Upper front teeth that protrude beyond normal contact with the lower front teeth are prone to injury, often indicate a poor bite of the back teeth (molars), and may indicate an unevenness in jaw growth. Commonly, protruded upper teeth are associated with a lower jaw that is short in proportion to the upper jaw. Thumb and finger sucking habits can also cause a protrusion of the upper incisor teeth.

Deep overbite: A deep overbite or deep bite occurs when the lower incisor (front) teeth bite too close or into the gum tissue behind the upper teeth. When the lower front teeth bite into the palate or gum tissue behind the upper front teeth, significant bone damage and discomfort can occur. A deep bite can also contribute to excessive wear of the incisor teeth.

Open bite: An open bite results when the upper and lower incisor teeth do not touch when biting down. This open space between the upper and lower front teeth causes all the chewing pressure to be placed on the back teeth. This excessive biting pressure and rubbing together of the back teeth makes chewing less efficient and may contribute to significant tooth wear.

Spacing: If teeth are missing or small, or the dental arch is very wide, space between the teeth can occur. The most common complaint from those with excessive space is poor appearance.

Crossbite: The most common type of a crossbite is when the upper teeth bite inside the lower teeth (toward the tongue). Crossbites of both back teeth and front teeth are commonly corrected early due to biting and chewing difficulties.

Underbite or lower jaw protrusion: About 3 to 5 percent of the population has a lower jaw that is to some degree longer than the upper jaw. This can cause the lower front teeth to protrude ahead of the upper front teeth creating a crossbite. Careful monitoring of jaw growth and tooth development is indicated for these patients.

While orthodontic treatment requires a time commitment, patients are rewarded with healthy teeth, proper jaw alignment and a beautiful smile that lasts a lifetime. Teeth and jaws in proper alignment look better, work better, contribute to general physical health and can improve self-confidence.

Orthopedic appliances, such as headgear, Herbst and maxillary expansion appliances, use carefully directed forces to guide the growth and development of jaws in children and teenagers. For example, an upper jaw expansion appliance can dramatically widen a narrow upper jaw in a matter of months. Over the course of orthodontic treatment, a headgear or Herbst appliance can dramatically reduce the protrusion of upper incisor teeth (the top four front teeth) or retrusion of the lower jaw (a lower jaw that is too far behind the upper jaw), while making upper and lower jaw lengths more compatible.

No jaw growth: Jaw problems can usually be managed well in a growing child with an orthopedic, growth-modifying appliance. However, the same problem for an adult may require jaw surgery. For example, if an adult's lower jaw is too short to match properly with the upper jaw, a severe bite problem may result. The limited amount that the teeth can be moved with braces alone may not correct this bite problem. Bringing the lower teeth forward into a proper bite relationship could require jaw surgery, which would lengthen the lower jaw and bring the lower teeth forward into the proper bite. Other jaw-width or jaw-length discrepancies between the upper and lower jaws might also require surgery for bite correction if tooth movement alone cannot correct the bite.

Gum or bone loss (periodontal breakdown): Adults are more likely to have experienced damage or loss of the gum and bone supporting their teeth (periodontal disease). Special treatment by the patient's dentist or a periodontist may be necessary before, during and/or after orthodontic treatment. Bone loss can also limit the amount and direction of tooth movement that is advisable.

Worn, damaged or missing teeth: Worn, damaged or missing teeth can make orthodontic treatment more difficult, but more important for the patient to have. Teeth may gradually wear and move into positions where they can be! restored only after precise orthodontic movement. Damaged or broken teeth may not look good or function well even after orthodontic treatment unless they are carefully restored by the patient's dentist. Missing teeth that are not replaced often cause progressive tipping and drifting of other teeth, which worsens the bite, increases the potential for periodontal problems and makes any treatment more difficult.

When permanent teeth are lost, it is common for the remaining teeth to drift, tip or shift. This movement. can create a poor bite and uneven spacing that cannot be restored properly unless the missing teeth are replaced. Tipped teeth usually need to be straightened so they can stand up to normal biting pressures in the future.