Demonstration should include maintenance for

• central air compressor
• plaster trap
• model trimmer
• other equipment as specified
• amalgam separator
• x-ray equipment
• evacuation system

• traps
• central vacuum compressor
• evacuation hoses.

Demonstration of the procedure should also include cleaning and maintaining the

• ultrasonic cleaner
• tray container
• autoclave/sterilizer
• washer-disinfector
• other disinfecting containers and equipment.

All solutions must be discarded and replaced according to specified guidelines, and the autoclave indicator dials or liquid crystal display (LCD) readout must be monitored throughout the procedure.

Process/Skill Questions:

• What is an amalgam separator?
• How does one determine the correct cleaning procedure for an autoclave?
• Why should PPE be worn when using chemicals?
• How often should the solution in an ultrasonic cleaner be changed?
• How often should the plaster trap be checked?
• Why is it important to clean the traps?
• How often should the hoses be cleaned and flushed?
• What needs to be done to maintain the central vacuum compressor?