The Macrocosm Health Grouping defines Dentistry as "the science and craftsmanship of preventing, diagnosing and treating diseases, injuries and malformations of the teeth, jaws and mouth". A dentist is a healthcare professional qualified to rule dentistry after graduating with a link of either Doctor of Dental Surgery (DDS), Doctor of Dental Medicine (DMD), Bachelor of Dentistry (BDent), Seattle Dentist Bachelor of Dental Scholarship (BDSc), or Bachelor of Dental Surgery/Chirurgiae (BDS) or (BChD) or equivalent. In most western countries, to become a qualified dentist alone must usually complete at least 4 years of postgraduate study. Generally, 2 years of clinical experience working with patients in an educational setting are required.
Specialists in these fields are designated registrable (U.S. "Board Eligible") and warrant exclusionary titles such as orthodontist, oral and maxillofacial surgeon, endodontist, pediatric dentist, periodontist, or prosthodontist upon enjoyable undoubting local (U.S. "Board Certified"), (Australia/NZ: "FRACDS"), or (Canada: "FRCD(C)") registry requirements.