8 - Handpieces and compressors Flashcards
1
Q
What are the different channels found inside a dental handpiece?
A
- drive air channel
- air/water spray channel
2
Q
Why is handpiece cleaning and maintenance important?
A
- responsible for procurement
- cost
- infection prevent and control
3
Q
When should handpiece cleaning take place?
A
After every patient use
4
Q
Describe the cleaning of a handpiece.
A
- manual cleaning in WD
- lubricated after wash, before sterilization
- sterilised in steriliser with vacuum capability
5
Q
What should never be used to clean a dental handpiece?
A
- ultrasonic bath
- aluminium cannot withstand forces
6
Q
What are the most common faults seen in handpieces?
A
- incorrect compressor settings/lack of maintenance
- damaged or oversized bur fitted
- incorrect usage
- poor or inadequate cleaning
- incorrect or inadequate lubrication
7
Q
What type of handpiece requires disassembly before cleaning?
A
Oral surgery straight handpiece
8
Q
What are the steps in a wash and disinfection process?
A
- cold prewash
- heated detergent wash
- pure water rinse to remove residue
- pure water thermal disinfection
- drying phase
9
Q
What is used to lubricate handpieces?
A
Oil that is water soluble and food grade
10
Q
Describe a vacuum cycle in a steriliser.
A
- air removed from chamber
- steam 134-137 degrees
- steam removed/vented
11
Q
Describe a dental compressor.
A
- oil free with dryer
- do not require day-to-day maintenance
- breathing air filters require change annually
