Question 60 (part 2) · LDEK · Ergonomics, asepsis and other

Choose correct statements regarding the dental microscope:

1) green filter allows for increased contrast in bloodstained work field;
2) polarizing filter improves the visibility of small anatomical structures;
3) polarizing filter allows for increased contrast in bloodstained work field;
4) orange filter facilitates the identification of tissues affected with disease;
5) filters do not cause any changes in focus and depth of observed field.
Correct answer is:
  1. A. 1,2,4.
  2. B. 1,2,5.
  3. C. 1,4,5.
  4. D. 2,4,5.
  5. E. 1,2,3.
Hint

Think about which colour absorbs red light, what polarisation does to glare and what an orange filter protects.

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