Dentists remove soft and hard sediments from their teeth and teach patients how to develop good oral hygiene and provide other preventive dental care. They examine the patient's teeth and gums, and record the presence of disease or abnormality.
Dental hygienists use a variety of different tools to accomplish their tasks. Hands and rotating instruments and ultrasound equipment are used for cleaning and polishing teeth, including removing stones, stains and plaque. The hygienists used the X-ray machine to take pictures and sometimes developed the film. They can use models of teeth to explain oral hygiene, the radical treatment of periodontal disease, or the use of mothbicides such as fluoride, pits, and fissure sealants. In some states, health workers are allowed to use narcotic drugs, while in other states, they use syringes to administer local anesthetics. Some states also allow health personnel to place and sculpt fillings, temporary fillers and periodontal dressings; Remove sutures; And smooth and polished metal repair.