In layman terms orthodontics is a specialty of dentistry that addresses the treatment of improper bites that are the result of tooth irregularity misalignment of the jaw or both. The term orthodontics originates from the Greek words orthos (meaning straight or proper) and odons (meaning tooth). The majority of clients that seek out orthodontic services are looking to improve the general appearance of their teeth and/or to improve the functionality of their teeth by improving bite. Dentists seeking to become orthodontists typically engage in two- to three-year full-time postgraduate study. The typical orthodontist in the United States earns approximately $121000 a year.