All are true regarding the enamel spindles except____________?

Related Mcqs:

1. Enamel spindles are formed by______________?

   A. Cracks
   B. Ameloblasts
   C. Odontoblasts
   D. Hypocalcified rods

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. True about direction of enamel rods______________?

   A. They originate at right angle to dentin surface
   B. They are almost vertical near the incisal edge (or) cusp tip areas
   C. In the cervical third of deciduous crowns they are almost horizontal in direction
   D. In cervical region of permanent teeth, they deviate in apical direction
   E. All of the above

6. All of the following are true about tolbutamide except____________?

   A. It is taken orally
   B. It is used in type-I diabetes mellitus
   C. It causes alcohol intolerance
   D. It acts on pancreas to stimulate release of insulin

7. A drug A & B compared, all are true except____________?

   A. 1 mg of A causes same effect of 3 mg of B, so A is more potent
   B. 1 mg of A cause effect not even caused by maximum tolerated dose of B, so drug A is more efficacious
   C. 1 mg of A cause effect not caused by 1 mg of B so A is more efficacious
   D. Efficacy is not dose dependent

8. The following statements are true about intravenous route of drug administration EXCEPT____________?

   A. It is useful in emergencies
   B. Aseptic precautions are required
   C. Bioavailability is 100%
   D. Suspensions can be administered

9. All of the following are true except____________?

   A. A special application of dantrolene is used to treat malignant hyperthermia
   B. Interferons have a role in immunology of cancer
   C. Thalidomide is used for the treatment of leprosy
   D. Allopurinol is a derivative of 8-mercaptopurine

10. All are true of diazapenes except____________?

    A. Benzodiazepam is used in treatment of status epilepticus
    B. Benzodiazepam is used in the long term treatment of psychic disorders
    C. Clonazeppam is used in the treatment of petitmal epilepsy
    D. None of the above