Etching of dentin does not include_____________?

Related Mcqs:

1. Marked reduction in amount of dentin, widening of predentin layer, presence of large area of interglobular dentin and irregular pattern of dentin is seen in______________?

   A. Hypocalcified dentin
   B. Odonto dysplasia
   C. Dentin dysplasia
   D. Dentinogenesis imperfecta

2. Compared to the inter tubular dentin, peritubular dentin is characterized by which of the following ?

   A. Greater stainability
   B. Lasser content of inorganic salts
   C. greater content of inorganic salts
   D. Greater content of large collagen fibres

3. In adult teeth, the type of dentin present underlying dentin-enamel junction is_______________?

   A. Predentin
   B. Mantle dentin
   C. Interglobular dentin
   D. Tertiary dentin

4. Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?

   A. Base to base
   B. Apex to base
   C. Apex to apex
   D. None of the above

5. Horner’s syndrome Does NOT include_____________?

   A. Ptosis
   B. Anhydrosis
   C. Flushing
   D. Mydriasis

6. Acid-etching is done for_______________?

   A. 30 seconds
   B. 60 seconds
   C. 90 seconds
   D. 120 seconds

7. Etching depth after 30 sec for orthodontic bracket with orthophosphoric acid is_________________?

   A. 10 um – 20 um
   B. 3 um – 9 um
   C. 50 um – 110 um
   D. 200 um – 250 um

8. Most advantageous indication of acid etching is______________?

   A. Decrease micro leakage
   B. Decrease polymerization shrinkage
   C. Decrease coefficient of thermal expansion
   D. Decrease porosity in restorative material

9. When restoring a tooth with resin material, acid etching can do all of the following except______________?

   A. Increase the surface area
   B. Permit chemical bonding between resin and enamel
   C. Create surface irregularities in enamel for better mechanical retention of resin
   D. Condition the tooth surface for better wetting

10. Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include_____________?

    A. Keratinocytes
    B. Mast cells
    C. Melanocytes
    D. Myoepithelila cells