An orthodontist is a specialist in correcting bite and jaw problems. In addition to dental school, an orthodontist must have also completed two years or more of full-time orthodontic training and specialty certification at a graduate program approved by the American Dental Association.

Straight teeth help an individual to effectively bite, chew and speak. Properly aligned teeth and jaws may alleviate or prevent physical health problems. Straight teeth are also less prone to decay, gum disease and injury.