They remove decay, fill cavities, examine x rays, place protective plastic sealants on children's teeth, straighten teeth, and repair fractured teeth. They also perform corrective surgery of the gums and supporting bones to treat gum diseases.
Dentists extract teeth, and make molds and measurements for dentures to replace missing teeth.
They administer anesthetics, and write prescriptions for antibiotics and other medications. They provide instruction in diet, brushing, flossing, the use of fluorides and other aspects of dental care, as well. Dental technologists provide assistance to dentists in their offices and supportive care for their patients. Dental hygienists clean teeth and provide other preventive dental care, as well as teach patients how to practice good oral hygiene. Dental assistants perform a variety of patient care, office, and laboratory duties.