A. Due to caries
B. Due to death of odontoblastic layer
C. It remains after caries is removed
D. Because of odontoblastic migration from cell rich zone
Related Mcqs:
- All of the following muscles are attached to oblique line of thyroid cartilage except______________?
A. Superior constrictor
B. Inferior constrictor
C. Thyrohyoid
D. Sternothyroid - All the following are true about upper eyelid EXCEPT______________?
A. Muscles which close the eyelid are supplied by the facial nerve
B. Muscles which open the eyelid are supplied by the branch of trigeminal nerve
C. Sensory supply is by the 5th cranial nerve
D. Blood supply is by the lacrimal and ophthalmic arteries - Regarding myxedema the following are true except______________?
A. Swollen, oedematous look of the face
B. Impotency, amenorrhea
C. B.M.R increased by 30 -45%
D. Dullness, loss of memory - True about denaturation of protein is all except______________?
A. Unfolding occurs
B. Disruption of secondary structure occurs
C. Sequence of amino acids remain the same
D. Biological activity is retained - 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 - 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 - 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 - All of the following statements about the differences between self-polymerizing acrylic resins and heat-cured resins are true EXCEPT______________?
A. The former have a lower molecular weight
B. The former have higher residual monomer content
C. The former are more porous
D. The former have greater transverse strength - About polymerization shrinkage of composite all are true, except______________?
A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
B. Polymerization shrinkage is high if within the enamel margins
C. Acid etching and priming will decrease polymerization shrinkage
D. Microleakage can occur because of polymerization shrinkage - Leptospirosis, all are true except______________?
A. Faeces & urine of rodents is the cause
B. Onset of IgM in 2 days
C. Incubation period is 10 days
D. It is sensitive to penicillin
