DA Chapter 24 Recall Questions
Where is biofilm found?
adhere to surfaces and form a protective slime layer
What precautions should you take when selecting a chemical for the dental unit?
check with the manufacture of the dental equipment to determine the recommended chemical product and maintenance protocol.
What methods are available to test the quality of dental unit water?
commercial testing service, in-office test kit
Will the use of a rubber dam totally eliminate exposure to microorganisms?
eliminates exposure, greatly reduces direct contact, reduces the aerosolizing and spattering of patient microorganisms
What bacteria cause the disease legionellosis?
legionella
how often should microfilters be changed?
manufacturer's recommentations
Is it appropriate to heat the water in dental units?
may contribute to increased levels of bacterial colonization
Are waterborne diseases limited to dentistry?
no
Has a widespread public health problem regarding contaminated dental water been reported?
no
If sterile water is used in the self-container reservoir, will the water that enters the patients mount be sterile?
no
Is it possible to eliminate biofilm completely?
no
Is the presence of bacteria in DUWLs a recent finding?
no, 30 years ago
What type of water must be used as an irritant for surgery involving bone?
sterile
Will flushing DUWLs remove biofilm?
temporarily reduces the microbial count in the water
When should the high-volume evacuator be used to minimized aerosol?
use of the high-speed handpiece, ultrasonic scaler, and air-water syring
