Diagnose, prevent, and treat problems with teeth or mouth tissue. Remove decay, fill cavities, examine x-rays, straighten teeth, and repair fractured teeth. Extract teeth and make models and measurements for dentures to replace missing teeth. Provide instruction on diet, brushing, flossing, the use of fluorides, and other aspects of dental care. Administer anesthetics and write prescriptions for antibiotics and other medications. Prepare patient, sterilize and disinfect instruments, set up instrument trays, prepare materials, and assist dentist during advance dental surgery. Expose dental diagnostic x-rays. Record treatment information in patient records. Take and record medical and dental histories and vital signs of patients. Provide postoperative instructions. Management of medical and dental emergencies. Instruct patients in oral hygiene and plaque control programs. Make preliminary impressions for study casts and occlusal registrations for mounting study casts. Perform corrective surgery on gums and supporting bones to treat gum diseases. Provide instruction on diet, brushing, flossing, the use of fluorides, and other aspects of dental care. Apply protective coating of fluoride to teeth. Schedule appointments, prepare bills and receive payment for dental services, complete insurance forms, and maintain records, manually or using computer.