1.The potential of a chemical to act in the body in a manner similar to that of estrogen is known as

1

• 1.The potential of a chemical to act in the body
  in a manner similar to that of estrogen is known
  as
• Acute toxicity
• Estrogenicity
• Hypersensitivity
• Toxicity

2

• 2. Estrogenicity is shown by which of the
  following?
• Gold
• Mercury
• Bisphenol A
• Methacrylates

3

• 3. Metal ions produce which type of
  hypersenitivity
• Type l
• Type ll
• Type lll
• Type lV

4

• 4.Type lV hypersensitivity is mediated by
• Monocytes
• T lymphocytes
• Both A B
• B lymphocytes

5

• 5. Patch test is used for
• Allergic contact dermatitis
• Hypersensitivity
• Mutagenicity
• estrogenicity

6

• 6.Mutagenicity is shown by
• Nickel
• Copper
• Berylium
• All of above

7

• 7. Microleakege results in
• Secondary caries
• Discoloration
• Sensitivity
• All

8

• 8.Which of the following test is not included in
  initial or primary test of biocompatiblity /
• Genotoxicity test
• Cytotoxicity assays
• Mutagenesis assays
• None of above

9

• 9.Which of the following tests is not included in
  secondary or intermediate test for
  biocompatibility?
• Systemic toxicity test
• Inhalation toxicity test
• Mucous membrane irritation test
• none

10

• 10. Most commonly used implant materials are
• CP Ti
• Titanium-aluminum-vanadium
• Tantalum
• All of above

11

• 11. Most allergenic metal known
• Nickel
• Chromium
• Indium
• beryllium

12

• 12.Allergic reactions to nickel and beryllium
  shows which type of hypersensitvity?
• Type l hypersensitivity
• Type ll hypersensitivity
• Type lll hypersensitivity
• Type lV hypersensitivity

13

• 13.Pneumoconiosis is a severe fibrotic lung
  disorder that can be caused by _______ exposure
  to inorganic dust ?
• Immediate
• Acute
• Chronic
• intermittent

14

• 14.Genotoxicity have been reported for which of
  the following salts ??
• Beryllium
• Gallium
• Both A B
• nickel

15

• 15.Microleakege Is ingress of fluids along gaps
  wider than _____ micrometer?
• 1
• 4
• 6
• 9

16

• 16.Cytotoxic hypersensivity reaction is which
  type of response ??
• Type l hypersensitivity
• Type ll hypersensitivity
• Type lll hypersensitivity
• Type lV hypersensitivity

17

• 17. Which is more toxic ?
• Methyl mercury
• Ethyl mercury
• Both
• None

18

• 18. Forms of mercury available naturally is /are
• Metallic mercury
• Inorganic salts
• Mercuric sulfide and chloride
• All of above

19

• 19. Xenoestrogenic activity is assesed
• Patch test
• E screen assay
• Ames test
• ELISA

20

• 20.The fastest way for toxic substances to enter
  the body is through which route
• Oral
• Inhalation
• Intravenous
• Direct contact

21

• Answer keys
• 1B
• 2C
• 3D
• 4C
• 5A
• 6D
• 7D
• 8D
• 9D
• 10D
• 11A
• 12A
• 13C
• 14C
• 15A
• 16B
• 17A
• 18D