Mottled enamel is due to______________?

Related Mcqs:

1. 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

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. KHN of enamel is close to______________?

   A. Pure gold
   B. Amalgam
   C. Prcelain
   D. Composite

5. Cavity formation in a tooth, due to dental caries is due to______________?

   A. Destructive potential of streptococcus mutans
   B. Destructive potential of lactobacillus acidophilus
   C. Lateral spread of caries along DE junction and weakening of the outer covering enamel
   D. Mastectomy force and unrelated to the extent of carious process

6. Gemination of teeth occur due to______________?

   A. Division of a single tooth bud after calcification
   B. Division of a single tooth bud before calcification
   C. Fusion of two teeth before calcification
   D. Fusion of two teeth after calcification

7. The most common coagulation disorders haemophilia A and von Willebrand’s disease are due to______________?

   A. Factor IX deficiency
   B. Vitamin K deficiency
   C. Factor X deficiency
   D. Factor VIII deficiency

8. Chronic granulocytic leukemia is due to______________?

   A. Chromosomal deletion
   B. Chromosomal mutation
   C. Chromosomal translocation
   D. None of the above

9. Strength of collagen is due to______________?

   A. Hydroxy glacine
   B. Glycine
   C. Proline
   D. Hydroxproline

10. Osteosclerosis of bone occurs due to______________?

    A. Decreased host resistance
    B. Increase in the virulence of organisms causes infection
    C. Increased host response
    D. Occurs in immunocompromised patients