Dental hygienist under the supervision of a licensed dentist, the hygienist cleans and polishes the patient's teeth and offers advice on how to take care of them. In addition, hygienists may assist the dentist with a patient in other ways, such as mixing filling compounds, applying fluoride to the teeth, taking and developing X-ray images of the teeth, and so on. In addition, public school systems in the United States employ hygienists to come to schools on a regular basis to examine the children's teeth and refer cases requiring treatment to a dentist. Hospital hygienists may be required to work with bed and ambulatory patients who only require a limited amount of preventative care.
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