Master programs and courses in dentistry have turned to doctors and dentists who want to deepen specific aspects of the subject. They are in fact specialization programs of medicine that deals with diseases of the teeth and mouth and their medical, surgical, prosthetic treatments. Boys and girls choose to become students of these courses of improvement to be able to start a career as a dentist, orthodontist, maxillofacial surgeon in hospitals, private clinics, dental offices, or as a freelancer.