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