what duties do dental hygienist do
What Dental Hygienists Do. Dental hygienists clean teeth, examine patients for signs of oral diseases such as gingivitis, and provide other preventative dental care. They also educate patients on ways to improve and maintain good oral health.ental hygienists help patients develop and maintain good oral health. For example, they may explain the relationship between diet and oral health. They may also give advice to patients on how to select toothbrushes and other oral-care devices. Other tasks hygienists may perform vary by state.