Specialists in these fields are designated "registrable" (in the United States, "board eligible") and warrant exclusive titles such as dentist anesthesiologist, orthodontist, oral and maxillofacial surgeon, endodontist, pediatric dentist, periodontist, or prosthodontist upon satisfying certain local (U.S., "Board Certified"), (Australia and New Zealand: Fellow of the Royal Australasian College of Dental Surgeons, designated by the post-nominal "FRACDS"), or (Canada: Fellow of the Royal College of Dentists, designated by the postnominal "FRCD(C)") registry requirements.