How often do you check the water and air pre-regulators?
Which of the following procedures do you follow prior to each operation of the
dental operating unit?
a. Adjust the syringe valves to achieve a steady stream of water when you push
both valves simultaneously.
b. Verify that each handpiece expels drive air, coolant air, and coolant water.
Adjust the water pressure to 80psi and the air pressure to 40psi.
d. Remove the scaler from its hanger and depress the switch verifying that water
is not dripping out of insert sleeve.
Which of the following procedures do you follow as a part of routine PMCS?
a. Always replace all rubber gaskets and diaphragms, never re-use them.
b. Clean the dental operating unit by running a hot detergent solution through it.
Never lubricate the O-rings or oral evacuator valves because the silicone
grease can contaminate the system.
d. After flushing all parts with clear, hot water, rinse them in isopropyl alcohol.
Check Your Answers on Next Page