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Chapter 24 Waterline
Dental unit waterlines
| Question | Answer |
|---|---|
| A mechanism that prevents entry of fluids and microorganisms into water lines as a result of negative water pressure. | Antiretraction device |
| What is biofilm? | Slime producing bacterial communities that may also harbor fungi, algae, and protozoa. |
| A number of separable cells on the surface of a semisolid agar medium that create a visible colony. | Colony-forming units |
| Small-bore tubing, used to deliver dental treatment water through a dental unit. | Dental unit waterline |
| Bacteria that use organic carbon as a source of nutrients. | Heterotrophic bateria |
| Name two heterotrophic bacteria. | Protozoa and fungi. |
| Having an immune system that is weakened. | Immunocompromised |
| Genus of bacteria responsible for the disease legionellosis. | Legionella |
| Use of membrane filters to trap microorganisms suspended in water. | Microfiltration |
| Planktonic describes bacteria that are? | Freely floating in water. |
| Is it true that some bacteria enter directly from the city water supply? | Yes |
| Is it true that flushing the waterlines will remove biofilm from the lines? | No |
| What are the two ways of testing the water to see if the waterline cleaning regimen is effective? | Commercial testing and In-office test kit. |
| A rubber dam is a protective barrier that eleminates the exposure to and greatly reduces direct contact to dental unit water. | Yes |
| What is backflow a potential source of? | Cross-contamination. |
Created by:
cynthia.fryer
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