Chapter 04 General Handling and Safety of Dental Materials in the Dental Office

Chapter 04  General Handling and Safety of Dental Materials in the Dental Office

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. Which of the following are considered to be personal protective equipment (PPE)?
a.
Protective shields on model trimmers and on collection bins for lathes
b.
Dust or surgical masks, eyewear, gowns, and hair coverings or tiebacks when appropriate
c.
Surface and immersion disinfectants
d.
Plastic wraps and covers

ANS: B
Dust or surgical masks, eyewear, gowns, and hair coverings or tiebacks when appropriate are considered to be PPE. During the manipulation of many dental materials, particulate matter can be generated. It is important for each person handling and manipulating these materials to have and use the proper PPE.

REF: p. 28
TOP: Material Hazards in the Dental Environment (Exposure to Particulate Matter)

2. A hazardous chemical is any substance that what?
1. Can catch fire
2. Can react or explode when mixed with other substances
3. Is corrosive or toxic
4. May cause infection or disease
a.
1, 2, 3, 4
b.
1, 2, 3
c.
2, 3, 4
d.
1, 3

ANS: B
A hazardous chemical is any substance that can catch fire, can react or explode when mixed with other substances, or is corrosive or toxic. It is defined as any chemical that has been shown to cause either a physical or health hazard. Many dental materials contain more than one chemical.

REF: p. 29 TOP: Chemical Safety in the Dental Office (Hazardous Chemicals)

3. Who has the responsibility of assessing hazardous chemicals and then passing the information to consumers?
a.
Occupational Safety and Health Administration
b.
Organization for Safety and Asepsis Procedures
c.
Centers for Disease Control and Prevention
d.
Chemical manufacturers

ANS: D
It is the responsibility of the chemical manufacturers to assess the hazards of the products that they produce and pass this information on to consumers. A hazardous chemical is defined as any chemical that has been shown to cause either a physical or health hazard.

REF: p. 29 TOP: Chemical Safety in the Dental Office (Hazardous Chemicals)

4. Acute chemical toxicity results from _____ levels of exposure over a _____ period of time.
a.
high; long
b.
high; short
c.
low; long
d.
low; short

ANS: B
Acute chemical toxicity results from high levels of exposure over a short period of time. This is frequently caused by a large chemical spill in which the exposure is sudden. The effects of this type of toxicity are felt right away.

REF: p. 31 TOP: Acute and Chronic Chemical Toxicity (Acute Chemical Toxicity)