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The American Association of Orthodontists (AAO) is the American professional association for orthodontists. Approximately 13,500 American orthodontists, about 95 percent, are members along with a few Canadian orthodontists. All orthodontists are dentists and may simultaneously hold membership in the American Dental Association. Its headquarters are in Creve Coeur, Missouri, near St. Louis.〔"(Contact Us )." American Association of Orthodontists. Retrieved on December 23, 2011. "401 North Lindbergh Boulevard St. Louis, MO 63141-7816"〕〔"(Creve Coeur city, Missouri )." ''U.S. Census Bureau''. Retrieved on May 21, 2009.〕 Orthodontists are dental specialists in the diagnosis, prevention, and treatment of orthodontic problems who have completed two to four years of advanced training in an accredited orthodontic residency program. Only those dentists who have completed this training may call themselves "orthodontists," and only orthodontists may be members of the American Association of Orthodontists. The AAO recommends that children as young as the age of seven see an orthodontist to evaluate whether they need dental braces or not. In 2013 Gayle Glenn was elected as the first female president of the American Association of Orthodontists. AAO is affiliated with the Canadian Association of Orthodontists. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「American Association of Orthodontists」の詳細全文を読む スポンサード リンク
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