Chapter 20

Front 1

Why must surfaces in dental treatment rooms be disinfected or protected with barriers?

Back 1

To prevent patient to patient transmission of microorganisms

Front 2

Used to prevent surface contamination

Back 2

sterilization and disinfection

Front 3

Purpose of surface barriers

Back 3

to prevent cross contamination

Front 4

What should you do if a barrier is torn
?

Back 4

replace it and clean and disinfect the surface under the barrier

Front 5

Which regulatory agency requires the use of surface disinfection?

Back 5

OSHA

Front 6

Why must surfaces be precleaned?

Back 6

To remove bioburden

Front 7

Where are antiseptics used?

Back 7

on skin

Front 8

Which agency regulates dininfectants

Back 8

EPA

Front 9

Which chemical solution is recommended for heat-resistant items

Back 9

Glutaraldehyde

Front 10

Name of the disinfectant that can leave a reddish or yellow stain

Back 10

Iodophors

Front 11

disadvantage of synthetic phenols

Back 11

can leave a residual film on surfaces

Front 12

common term for sodium hypochlorite

Back 12

bleach

Front 13

disinfectant that is not effective if blood or saliva is present

Back 13

alcohol

Front 14

Common uses of chlorine dioxide

Back 14

surface disinfectant and sterilant

Front 15

Ways to practice greener infection control

Back 15

conserve water and energy, use products with recyclable packaging, use digital radiography

Front 16

Housekeeping surfaces include

Back 16

floors, walls, and sinks

Front 17

Housekeeping surfaces

Back 17

have much lower risk for disease transmission so cleaning and decontamination techniques are not as rigorous

Front 18

clinical contact surfaces

Back 18

can be directly contaminated by direct spray or spatter generated during precedures

Front 19

Glutaraldehyde disinfectant time

Back 19

20-90 minutes

Front 20

Glutaraldehyde sterilant time

Back 20

6-10 hours

Front 21

Chlorine dioxide disinfectant time

Back 21

3 minutes

Front 22

Chlorine dioxide sterilant time

Back 22

6 hours

Front 23

Disadvantages of Chlorine dioxide

Back 23

1. must be prepared fresh daily

2. needs good ventilation

3. is corrosive to aluminum containers

Front 24

Ortho-Pthalaldehyde (OPA)

Back 24

1.achieves high level disinfection in 12 minutes

2. alternative to glutaraldehyde

3. very little odor and no mixing or activation

Front 25

Disadvantages of OPA

Back 25

1. cost

2.only used half as long as glutaraldehydes

3. may stain skin and fabrics

4. no sterilization claim

5. plastics turn blue or green when proteins aren't removed