Inorganic content of enamel is about______________?

Related Mcqs:

1. The percentage of inorganic matter in fully developed enamel is about____________?

   A. 66%
   B. 76%
   C. 86%
   D. 96%

2. Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?

   A. 1:4
   B. 1:1
   C. 1:2
   D. 2:1

3. Temporary structures in enamel organ are (before enamel formation) ?

   A. Enamel knot
   B. Enamel cord
   C. Both A and B
   D. Enamel Cuticle

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. Inorganic content of cementum is_____________?

   A. Less than bone
   B. More than bone
   C. Equal to that of bone
   D. More than that of enamel

6. Inorganic content of cementum is______________?

   A. 45 to 50%
   B. 50 to 55%
   C. 55 to 60%
   D. 60 to 65%

7. The oral and pharyngeal phases of swallowing take place very rapidly and last about______________?

   A. 3.5 seconds
   B. 1-1.5 seconds
   C. 6.0 seconds
   D. 9.5 seconds

8. When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?

   A. Cofactor
   B. Coenzyme
   C. Apoenzyme
   D. Holoenzyme

9. Inorganic phase of the composites aid in_______________?

   A. Increasing the mechanical strength
   B. Decreasing the coefficient of thermal expansion
   C. Reducing the polymerization shrinkage
   D. All of the above

10. Length of enamel rods is_____________?

    A. Greater than the thickness of enamel
    B. Less than the thickness of enamel
    C. Equal to the thickness of enimal
    D. None of the above