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DH 160 - Materials > LO 1 > Flashcards

LO 1 Flashcards

1
Q

Who is responsible for complying with WHIMIS?

A

The dentist

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2
Q

What three key methods must be used to provide information about hazardous materials?

A
  1. Labels on the products
  2. Safety Data Sheets
  3. Worker education and training programs
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3
Q

What are the employer’skey responsibilities under WHIMIS?

A
  1. Identify and list all hazardous products
  2. Identify location of those products
  3. Ensure all containers are suitably labelled (supplier or workplace labels)
  4. Make Safety Data Sheets available
  5. Provide WHIMIS training to employees
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4
Q

What are the employees’ key responsibilities under WHIMIS?

A
  1. Participate in training (ANNUALLY**)
  2. Use the info to protect themselves and others in the workplace
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5
Q

What are the 2 types of product labels?

A
  1. Supplier labels (comes with product)
  2. Workplace labels (created at the workplace)
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6
Q

What 6 elements must a product label contain

A
  1. Signal word
  2. Symbol (hazard pictogram)
  3. Product name or identifier
  4. Hazard statements
  5. Precautionary statements
  6. Manufacturer information
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7
Q

What 3 items of information must be contained on workplace labels (those created at work)?

A
  1. An identifier of the material (must be same as SDS)
  2. Information on safe handling of material
  3. A statement that an SDS is available

(Signs or symbols may be used to indicate safe handling if they are universal)

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8
Q

When are workplace labels used instead of manufacturer labels?

A

Chemicals are divided into another container

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9
Q

How many sections are in the new Safety Data Sheets?

A

16

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10
Q

Who provides the Safety Data Sheets to the workplace?

A

The manufacturer/supplier

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11
Q

A hazardous chemical is any substance that…

A
  1. Can catch fire or ignite
  2. Can react or explode when mixed
  3. Corrosive
  4. Toxic
  5. Carcinogenic

(Physical or health hazard)

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12
Q

What common dental materials are particulate hazards?

A
  1. Gypsum
  2. Alginate
  3. Aluminium oxide
  4. Grinding of porcelain, acrylic, and other restorative materials
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13
Q

What must dental hygienists strictly adhere to for biological containment?

A
  1. General infection control guidelines
  2. Canadian Centre for Occupational Health (CCOH) requirements
  3. Infection Prevention and Control (IPAC/Public Health) requirements
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14
Q

What are bio-aerosols?

A

A cloud-like mist containing microbes

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15
Q

How far away can bio-aerosols land?

A

Up to 3 feet

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16
Q

What is the concern with the smallest bio aerosol mists?

A

Can remain in the air and cause respiratory infections if inhaled

17
Q

What may bio aerosols contain?

A

Microbes (bacteria, viruses, molds, fungi, and yeast)

Larger droplets (splatter) can contain blood, saliva, dental materials, dust from composites

18
Q

What are the 3 main routes of exposure?

A
  1. Inhalation (can go from lungs to blood)
  2. Absorption (repeated exposure can result in dermatitis)
  3. Ingestion (must wash hands after touching chemicals)
19
Q

What are the two forms of chemical toxicity?

A
  1. Acute - high-level exposure over a short time (symptoms include rash, nausea, dizziness, etc.)
  2. Chronic - repeated exposure over long duration (leukemia or auto immune disease)
20
Q

What is needed to protect against chemical exposure?

A

PPE - gowns, masks, safety glasses, gloves

Proper sanitization methods

21
Q

What do you do if you come into contact with an acid?

A

Wash immediately with tepid water or saline

22
Q

What makes flammable liquids used in dental applications such as butane burners and alcohol torches particularly dangerous?

A

Very low flash point - can easily ignite

23
Q

Do all dental offices have an eyewash station?

A

Yes, it is a regulation

24
Q

Lab and radiography areas must be equipped with ______

A

Special exhaust systems

25
Q

Chemicals used in radiographic processing can cause _________

A

Contact dermatitis and irritation of the eyes, nose, throat, and respiratory tract

26
Q

Chemicals must be stored __________

A

According to manufacturer’s directions

27
Q

Aside from expiration date, chemicals should not be used if they _______

A

Change colour, texture, or appearance

28
Q

Where can you find proper chemical disposal information?

A

Product label or SDS

29
Q

What types of waste are considered hazardous?

A

Ignitable, corrosive, reactive, toxic

Processing solutions, lead foil, scrap amalgum, sharps, blood

30
Q

When using a tool with rotary action (grinding & polishing), you should take the following precautions

A
  1. Wear PPE ( mask, eyewear, plastic apron)
  2. Tie back hair and no dangling jewelry
  3. Ensure proper infection control
  4. Ensure proper maintenance of trimmers
31
Q

What infection control precautions should be used in the dental laboratory?

A
  1. PPE
  2. No items enter the receiving area until properly disinfected
  3. Know that microbes can live on gypsum for up to 7 days

DH 160 - Materials (8 decks)

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