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During a dental appointment, a hygienist typically removes soft and hard deposits from a patient's teeth; examines the gums and teeth to discern the presence of disease or oral abnormality; and strips the teeth of calculus (tartar), stains and plaque. dental hygienist takes on a somewhat academic role as well; he or she educates dental patients on how to establish and maintain suitable oral hygiene, often with the aid of teeth models to give the patient a visual sense.
Dental hygienists use many types of tools to do their job. They clean and polish teeth with hand, power, and ultrasonic tools. In some cases, they remove stains with an air-polishing device, which sprays a combination of air, water, and baking soda.