Orthodontics is a special branch of dentistry which deals with aligning the teeth and jaws that are positioned improperly to improve person's smile and oral health. Teeth that are improperly positioned or a crooked tooth are difficult to keep clean and are at higher risk of being lost early due to tooth decay and periodontal disease. Through orthodontic treatment problems of crooked teeth, overbites, underbites, jaw joints disorders are corrected which gives a more pleasing appearance and a healthier mouth. The specialist in this field is known as Orthodontist.