Principles and Techniques of Disinfection

Question 1

these surfaces must be more rigorously cleaned and decontaminated.

Answer 1

Clinical Contact Surface
-can be contaminated by direct spray or spatter during dental procedures or by contact with dental professionals gloved hand

Question 2

The current OSAP infection-control guidelines recommend that clinical surfaces be classified and maintained under the three categories of

Answer 2

Touch
Transfer
Splash, spatter, and droplet

Question 3

surface contamination has two methods

Answer 3

• Surface barriers

- Precleaning and disinfecting the surface between patients

Question 4

Surface barrier material include

Answer 4

plastic bags
clear plastic wraps
plastic tape
plastic back paper
stick tape
Aluminum foil

Question 5

what is the propose of pre-cleaning

Answer 5

Reduce the number of microbes
Removes Blood
Saliva
Other body fluids

Question 6

Precleaning a surface these may be used to pre-clean a surface

Answer 6

regular soap and water or a disinfectant that cleans as well as disinfects may be used to preclean surfaces

Question 7

Disinfectants in a dental office must be

Answer 7

registered with the EPA as hospital disinfectants with tuberculocidal claims should be used to disinfect dental treatment areas

Question 8

What should be used for surface disinfection

Answer 8

Lodophors and synthetic phenol compounds are accepted for surface disinfection

Question 9

When cleaning and disinfecting a treatment room, the dental assistant must wear

Answer 9

• Utility Gloves
• Protective eyewear
• Mask
• Protective clothing to prevent contact with contaminated surfaces and chemicals

Question 10

When dealing with glutaraldehyde one must

Answer 10

• handle carefully
• Fumes should be avoided, and PPE should be used to protect the eyes, skin, and lungs
• instruments should be rinsed with water before they are used on patients

Question 11

High-level disinfectant with very little odor that does not require mixing

Answer 11

Ortho-Phthalaldehyde (OPA)

Question 12

CDC guidelines recommend

Answer 12

barriers for hard-to-clean clinical contact surfaces and barrier should e changed between patients
-that clinical contact surfaces, that are not barrier-protected, be cleaned and disinfected after each patient using an EPA-registered hospital disinfectant that has a low-to-intermediate-level activity

Question 13

Are chemicals that are applied to inanimate surface to destroy microorganisms that remain after pre-cleaning

Answer 13

Disinfectants