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6. What common anaesthetics does not contain a vasoconstrictor?

  • Citanest Plain
  • Citanest
  • Articaine
  • Lidocaine

7. What is an advantage of etchant?

  • Cheap
  • All of them
  • Improves retention
  • Doesn't infiltrate dentine quickly

8. What is a hazard associated with amalgam?

  • Mercury is toxic
  • None of them
  • Mercury collects irreversibly in human tissues
  • Amalgam releases high amounts of vapours in the mouth

9. What is the purpose of a temporary crown?

  • None of the them
  • To protect a prepared tooth
  • To replace a missing tooth
  • To restore an existing crown

10. What is the main hazard associated with dental curing lights?

  • All of them
  • Possible skin burns
  • Retina damage
  • Possible tissue damage

11. What is an advantage of dental bond?

  • Doesn't evaporate
  • Insoluble
  • Thickens when exposed to air
  • Unaffected by saliva

12. What is the purpose of a veneer?

  • To restore an existing crown
  • To cover the labial surface of an anterior tooth
  • To protect a prepared tooth
  • To replace missing teeth

13. What is the purpose of a full removal prosthesis?

  • To replace posterior teeth in an arch
  • To replace anterior teeth in an arch
  • To replace full arch of teeth
  • To replace partial arch of teeth

14. How should alginate impressions be stored once the impression has been disinfected?

  • Dried and sealed in an air tight bag
  • Any of them.
  • Wrapped in damp gauze and sealed in an air tight bag
  • Wrapped in gauze and sealed in an air tight bag

15. When making complete and partial removable prosthesis, which stage comes third?

  • Bite registration
  • Try-in
  • Secondary impressions
  • First impressions

16. When making complete and partial removable prosthesis, which stage is first?

  • Fit
  • Bite registration
  • First impressions
  • Try-in

17. When making complete and partial removable prosthesis, which stage comes second?

  • Secondary impressions
  • Try-in
  • Bite registration
  • First impressions

18. What is a disadvantage of etchant?

  • Unstable composition
  • Does not dry
  • Excessive demineralisation can occur
  • Unhygienic application

19. What is an advantage of a lining material?

  • All linings can be used with all fillings
  • Always pre-mixed
  • Protects the pulp
  • Allows access of caries bacteria

20. What is the purpose of a bridge?

  • To replace missing teeth
  • To cover the labial surface of teeth
  • To protect a prepared tooth
  • To restore an existing crown