"Dentistry, which is a part of stomatology, is the branch of medicine that is involved in the evaluation, diagnosis, prevention, and surgical or non-surgical treatment of diseases, disorders and conditions of the oral cavity, maxillofacial area and the adjacent and associated structures and their impact on the human body.Dentistry is widely considered necessary for complete overall health. Those who practice dentistry are known as dentists. The dentist's supporting team aides in providing oral health services, which includes dental assistants, dental hygienists, dental technicians, and dental therapists….

In Korea, Taiwan, Japan, Sweden, Germany, the United States, and Canada, a dentist is a healthcare professional qualified to practice dentistry after graduating with a degree of either Doctor of Dental Surgery (DDS) or Doctor of Dental Medicine (DMD). This is equivalent to the Bachelor of Dental Surgery/Baccalaureus Dentalis Chirurgiae (BDS, BDent, BChD, BDSc) that is awarded in the UK and British Commonwealth countries. In most western countries, to become a qualified dentist one must usually complete at least 4 years of postgraduate study[citation needed]; within the European Union the education has to be at least 5 years. Dentists usually complete between 5 to 8 years of post-secondary education before practising. Though not mandatory, many dentists choose to complete an internship or residency focusing on specific aspects of dental care after they have received their dental degree."  (Source: Wikipedia.org)