American Association of Orthodontics
Learn more about orthodontists. Includes: news, history, directory, glossary, education and career information, calendar, and regional society information.
American Board of Orthodontics
Official site of the US certifying board of orthodontics.
Includes: certification standards, how to become board certified in orthodontics, list of diplomates.
American Dental Association
Information for dental professionals and consumers.
Michigan Dental Association
The official site of the more than 6,500 dentists and dental student members of the Michigan Dental Association.
The Library of Congress
The nation's oldest federal cultural institution, and it serves as the research arm of Congress.  
The National Institutes of Health
The world's foremost medical research centers.