DUWL BASICS
Treatment and Maintenance
Risk and Safety
100

These form in the small-bore tubing of dental units and are communities of slime-producing bacteria.

What is Biofilm?

100

These containers are used to hold and supply water or other solutions to handpieces and air-water syringes, allowing for better control of water quality.

What are Self-Contained Water Reservoirs?

100

This genus of bacteria, which can cause severe pneumonia, is found in dental unit waterlines.

What is Legionella?

200

This term describes bacteria that are freely floating in the water within the lines.

What is Planktonic?

200

This method is used to remove bacteria from the water by trapping microorganisms within the lines.

What is Microfiltration?

200

These individuals have weakened immune systems and are at higher risk for infection from contaminated water.

Who are the Immunocompromised?

300

The number is waterborne bacteria in community water that is exceptable.

What is 500 CFU/mL?

300

These should be used to reduce the microbial count in the waterlines to safe levels (below 500 CFU/mL).

These should be used to reduce the microbial count in the waterlines to safe levels (below 500 CFU/mL).

300

These can be reduced by using rubber dams and high-volume evacuation (HVE).

 What are Aerosols?

400

This will reduce the microbial count of bacterial in the dental unit waterlines.

What is 2 minutes in the morning and 20-30 seconds between patients

400

To reduce the number of bacteria, this action should be done every morning for several minutes and between patients for 20-30 seconds.

What is Flushing the waterlines?

400

Biofilm can contain many types of bacteria

What are fungi, algae, and protozoa

500

The number of separable cells on the surface of a semisolid agar medium that create a visible colony.

What are Colony-Forming Units (CFUs)?

500

This causes backflow from low-volume saliva ejectors, which can suck up patient materials.

 What is Negative pressure?

500

This type of water must be used during surgical procedures.

What is sterile water?

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