The HVE Has Three Main Purposes: (1)retract Tongue and Cheek;

Multiple Choice

The HVE has three main purposes: (1) retract tongue and cheek; (2) keep mouth free of saliva,blood,debris,and water; and (3) :

A) reduce the bacterial aerosol spray caused by the high-speed handpiece.
B) keep the patient's mouth fresh.
C) keep oral tissues from dehydrating.
D) none of the above.