During dental work, assistants sit at the patient's side and hand instruments to the dentist. They keep the patient's mouth dry and clear by using water jets and suction devices. Assistants maintain and sterilize instruments after use. They may demonstrate proper care of teeth and gums. They may clean and polish dentures.
Some dental assistants make impressions of teeth.
Depending on the office, dental assistants may have laboratory or clerical duties. Lab duties include making temporary crowns and polishing removable dental work. Clerical duties may include making and confirming appointments, maintaining payment records, and ordering supplies. Dental assistants should not be confused with dental hygienists who perform more tasks. For more information, see the dental hygienist occupation.