Q
# 01 Primary dentine
A. primary dentine tubules structure is
irregular.
B. it show slower deposition
C. it is not deposited evenly.
D. its tubules get sclerose very often.
E. it shows rapid deposition.
Key E
Q
#02 Incremental line of Von ebner in dentine occurs as a
A. one day cycle.
B. two day cycle
C. three day cycle.
D. six day cycle
E. five day cycle.
Key E
Q
#03 Pulp is a
A.
hard connective tissue that supports the dentine.
B.
has a poor nerve supply
C. it is derived from
dental organ.
D.
pulp become more cellular with age.
E.
it mainly consists of type 1 and type 3 collagen fibres.
Key E
Q
# 04 Regarding microscopic zones of pulp
A. increase density of cells are found in
subodontoblastic layer
B. plexus of Rashkow is present in cell rich
zone
C. secondary dentine is present in pulp core.
D. plexus of Rashkow is present in cell free
zone.
E. cell rich zone contain cell bodies of
odontoblast.
Key D
Q
# 05 Cells of dental pulp
A. fibroblasts increase in number with advancing
age.
B. pulp tissue mainly consist of type 4 collagen
fibres.
C. fibroblasts are the most numerous cells of
radicular pulp
D. odontoblasts are not included in the cells of
dental pulp.
E. fibroblasts maintain and forms the pulp
matrix.
Key E
Q
# 06 The vitality of dentin is dependent upon the?
A. Dentinal tubules.
B. Odontoblast.
C. Osteoblast.
D. Cementoblast
E. Nerve supply of the pulp.
Key
B
Q
# 07 With the age following changes occurs in the pulp except?
A. Number of cell decrease with the age.
B. Number of cell increase with the age
C. Pulp stones increases
D. Volume of pulp chamber & root canal
decreases
E. Calcification in the wall of blood takes
place.
Key B
Q
# 08 The tooth which is used as guide spot in occlusion?
A. Incisors
B. Canine
C. Premolar.
D. Molar.
E. Third Molar.
Key B
Q
# 09 True pulp stones exhibits structure of
A. Concentric layer of calcification.
B. Tubular arrangement like in dentin
C. Homogenous mass of calcification.
D. Cells of remnant of hertwig’s epithelial root
sheath
E. Cementum
Key B
Q
# 10 Degradation of the fibers in the pulp takes place by?
A. Odontoblast.
B. Fibroblast.
C. Cementoblast
D. Osteoblast.
E. Osteoclast
Key B
Q
# 11 All of the following are true regarding primary dentin except?
A.
Most of the tooth is formed by primary dentin.
B.
Out lines the pulp chamber.
C.
Also called circumpulpal dentin
D.
Primary dentin lines the inner most pulpal portion.
E.
The outer layer is called mantle dentin.
Key D
Q
# 12 The predominant inorganic element of dentin is?
A.
Flourine
B.
Calcium
C.
Phosphorus.
D.
Sodium.
E.
Chloride
Key B
Q
# 13 The mineral content is highest in?
A.
Peribubular dentin / intra tubular dentin
B.
Intertubular dentin.
C.
Inter globular dentin.
D.
Pre dentin.
E.
Primary dentin.
Key A
Q
# 14 The total number of pulp organs in every person is
A.
40
B.
45
C.
50
D.
52
E.
51
Key D
Q
# 15 Close to the apex of the adult tooth, the odontoblasts appers like
osteobasts,
They can be recognized as odontoblasts.
A.
Due to their ovoid shape
B.
Due to their spindle shape.
C.
Due to their processes extending into the dentin
D.
Due to their large nucleus
E.
Due to basal portion of nucleus
Key C
Q
# 16 Rich nerve plexus in the subodontic ell free zone is known as
A.
Parietal plexus
B.
Plexus of Rashkow
C.
Circum odontoblasts plexus
D.
All of the above
E.
Marginal plexus
Key B
Q
# 17 Age changes in dental pulp.
A.
cellular component increase in number
B.
pulp shows calcification that eases the endondontic treatment.
C.
Pulp chamber decrease in size.
D.
regeneration of myelinated and non myelinated nerve occurs.
E.
less amount of secondary dentine is found.
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