Dental materials

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Dental materials
2011-01-21 01:50:29
Chapter four

week one
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  1. gypsum products, alginate, microblasting materials, and pumice may generate _________ during the grinding and polishing process
  2. PPE is worn to protect from what 5 material hazards in the dental office?
    • particulate matter
    • mercury
    • toxic effects of chemicals
    • airborne contaminants
    • biological contaminants
  3. Dental personnel can be protected from the occupational transmission of infectious diseases through strict adherence to the requirements of what?
    Occupational Safety and Health Administration (OSHA)
  4. What are 4 ways that chemicals enter the body?
    • inhalation
    • absorption through the skin
    • ingestion (eating or drinking)
    • invasion directly through a break in the skin
  5. The toxicity of a chemical depends on what 3 things?
    • dose
    • length
    • frequency of exposure
  6. Whose responsibility is it to inform public of product hazards?
    chemical manufacturers through MSDS sheets
  7. What kind of toxicity results from high levels of exposure over a short period of time?
  8. the affects of ________ toxicity are felt right away
  9. symptoms of what type of toxicity include dizziness, fainting (syncope), headache, nausea, and vomiting
    acute overexposure to chemicals
  10. What kind of toxicity results from repeated exposures usually to lower doses, over a much longer time such as months or years?
  11. The effects of what kind of toxicity can include cancer, neurologic deficits, and infertility?
    chronic toxicity
  12. What type of gloves are recommended for wearing during chemical handling?
    chemical-resistant gloves such as nitrile gloves
  13. How do you know what type of protective clothing to wear when using chemicals?
    the type of chemical guides the clothing selection
  14. What 2 things should the face mask be to protect from inhalation while working with chemicals?
    • fluid repelling
    • respiratory protection
  15. If the job requires frequent pouring or mixing of chemicals, sensitive or allergic individuals might need a what?
    national institute of occupational safety and health (NIOSH) approved dust and mist respirator face mask
  16. What 3 things should a spill kit for small amounts of mercury contain?
    • mercury-absorbin powder
    • mercury sponges
    • disposable bag
  17. It is so important to keep _________ away from fire
  18. What are three acids that are commonly used during manipulation of various dental materials?
    • phosphoric
    • hydrofluoric
    • hydrochloric
  19. What do you do if you spill phosphoric, hydrofluoric, or hydrochloric acid somewhere on yourself?
    flush with water immediately
  20. OSHA requires that an eyewash unit be installed where?
    in every place of employment where chemicals are used
  21. How often is it recommended that eye wasy stations are inspected?
    every 3 months
  22. How long should you flush your eyes if you spilled an acid in them?
    at least 5 minutes
  23. Dental offices should be equipped with special exhause systems for fumes and dust in what two places?
    lab and radiographic areas
  24. What are 3 requirements of where chemicals should be stored?
    • dry
    • cool
    • dark location (not exposed to direct sunlight)
  25. OSHA hazard communication standard states that employees have the right and need to know about the ________ and the _________ of chemicals used in the workplace
    • identity
    • hazards
  26. A wast
  27. is considered hazardous if it has any of what 5 characteristics?
    • ignitable
    • corrosive
    • reactive
    • toxic
    • Listed by the U.S environmental protection administration (EPA)
  28. What are the 5 parts of the hazard communication program?
    • written program
    • chemical inventory
    • material safety data sheets MSDS sheets
    • labeling of chemical containers
    • employee training
  29. What are the 4 components of the written programs of the hazard communication program?
    • name of employees exposed to hazardous chemicals
    • describe how chemicals handled
    • safety measures taken
    • how one should respond to chemical emergencies
  30. The chemical inventory is a _________ list of every product used in the office that contains chemicals including what 4 materials?
    • amalgam
    • bonding agents
    • disinfectants
    • impression materials
  31. What do you do if there is a new chemical added to the inventory?
    add it to the list and to the MSDS in the MSDS file
  32. What are 2 types of information that MSDS sheets contain?
    • health and safety
    • technical
  33. What are 6 things that MSDS sheets describe about a chemical?
    • physical and chemical properties
    • health hazards
    • routes and exposures
    • precautions for safe handling
    • emergency and first aid procedures
    • spill control measures
  34. Section I of MSDS
    product info
  35. Section II of MSDS
    hazardous ingredients
  36. Section III of MSDS
    physical hazard data
  37. SEction IV of MSDS
    fire and explosion data
  38. Section V of MSDS
    health and hazard info
  39. SEction VI of MSDS
    reactive data
  40. Section VII of MSDS
    spill or leak procedures
  41. Section VIII of MSDS
    special protection info
  42. Section IX of MSDS
    special precautions