Orthodontics is a special field of dentistry which involves the prevention and treatment of dental and facial irregularities (i.e., anything which prevents you from enjoying a healty and attractive smile). Orthodontics will straighten your teeth by gradually moving the jaws and teeth into their proper positions. An Orthodontist uses corrective appliances (braces, retainers, expanders, headgear, splints, etc.) to prevent and correct the problems caused by an improper bite (malocclusion). If your teeth don't line up properly with your jaws in a "good bite", tooth decay and gum disease can develop. Crooked teeth prevent proper chewing which prevents proper digestion which leads to poor health. Malocclusion prevents an attractive smile.