Which of the following is true?

Related Mcqs:

1. Which of the following is true?

   A. Cutting cone or resorption tunnel is the area of resorption seen in alveolar bone
   B. CAMP or cyclic adenosine monophosphate levels are increased on pressure side of bone and this results in bone resorption
   C. Immature born / embryonic bone seen during fracture healing contains less calcified material and greater number of large osteocytes
   D. All of the above

2. All of the following is true about dentinal tubules except______________?

   A. Inner pulpal layer contains more dentinal tubules than outer dentin layer
   B. The diameter of dentin tubules ranges from 5 to 7μm
   C. The diameter of dentinal tubule is more at pulpal layer than outer layer
   D. The bonding is more on the inner layer of dentin compared to outer surface

3. Which of the following is true of cellular cementum ?

   A. Forms during root formation
   B. Forms after the eruption of the tooth
   C. Seen at the coronal portion of the tooth
   D. Formation is a slow process

4. All of the following are true about functions of dental pulp except______________?

   A. Formation of dentin
   B. Nerve supply to dentin
   C. Sends impulses to CNS
   D. Nerve supply to enamel through fibres

5. Which of the following is not true for myelinated nerve fibers______________?

   A. Impulse through myelinated fibers is slower than non- myelinated fibers
   B. Membrane currents are generated at nodes of Ranvier
   C. Saltatory conduction of impulses is seen
   D. Local anesthesia is effective only when the nerve is not covered by myelin sheath

6. Which of the following is true about calcification of teeth ?

   A. Calcification of primary teeth is almost complete at time of birth
   B. Calcification of all primary teeth and few permanent teeth complete at birth
   C. Calcification of all permanent teeth complete at birth
   D. Calcification of primary teeth starts around birth

7. All of the following statements are true for zinc oxide eugenol cements except______________?

   A. Equal lengths of base paste and accelerator paste are mixed together until the mix has a uniform colour
   B. Increase in temperature and humidity shorten the setting time
   C. The mix appear thick at the start of mixing but after 30 seconds of additional spatulation it becomes more fluid
   D. Water accelerates but heat retards the setting of zinc oxide eugenol cements
   E. Both C & D

8. All of the following statements are true regarding cervicofacial actinomycosis, EXCEPT_____________?

   A. 110-20% of actinomycosis cases occur in cervicofacial region
   B. The discharging pus contains visible sulphur granules
   C. Cultures on blood agar often produce a typical molar tooth morphology
   D. There is usually history of trauma such as tooth extraction or a blow to the jaw

9. All of the following statements regarding biovailability of a drug are true except______________?

   A. It is the proportion (fraction) of unchanged drug that reaches the systemic circulation
   B. Biovailability of an orally administered drug can be calculated by comparing the area under cure (o-a) after oral and intravenous (IV) administration
   C. Low oral biovailability always and necessarily mean poor absorption
   D. Biovailability can be determined from plasma concentration or urinary excretion data

10. Which of the following is NOT True about primary HSV infection ?

    A. primarily affects the anterior portion of the mouth causes acute gingivits
    B. causes acute gingivits
    C. occurs as epidemic
    D. shows prodromal symptoms