1
NDAEB EXAM PREPARATION QUESTIONS AND
CORRECT ANSWERS 2024/2025 GRADED A+.
is the periodontal ligament capable of repair - (ANSWER)yes the PDL is capable of
repair
what stage is the enamel and Dentin formed? - (ANSWER)ectoderm - enamel
Mesoderm- dentin
periods of prenatal development are? - (ANSWER)Preimplantation period: the
process of the parents chromosome joining which is called meiosis
Embryonic period: 2nd to 8th week
fetal period: 9th week till birth
ectoderm forms? - (ANSWER)skin, brain, spinal cord, hair, nail, enamel of teeth,
lining of oral cavity
mesoderm forms? - (ANSWER)bones, muscle, circulatory system, kidney, duct,
reproductive system, dentin, pulp
endoderm forms? - (ANSWER)digestive system, lungs, urogenital system
tooth development? - (ANSWER)initiation stage/six to seventh week-inductions
, 2
bud stage (8 weeks) - proliferation (dental lamina)
cap stage (9-10 week) - proliferation, differential, enamel organ
bell stage (11 -12 weeks) - bell with four cells types and dental papilla into 2 cells
apposition stage- induction, proliferation
maturation stage/varies per tooth- maturation
osteoblast means? - (ANSWER)add bone
osteoclast means? - (ANSWER)resorbed (taken away)
how does osteoblast and osteoclast work together? - (ANSWER)when force is
applied, bone will be resorbed (osteoclast) and will be deposited back of the
tooth to fill in the space
how does shedding and exfoliation act with permanent and primary teeth? -
(ANSWER)shedding and exfoliation is the normal process by which primary teeth
are lost as succedaneous (permanent) teeth development
bones of the face? - (ANSWER)parental bone, frontal bone, occipital bone,
temporal bone
what are the sutures on the skull? - (ANSWER)coronal suture, squamous suture,
occipitomastiod suture
, 3
what does the zygomatic arch help form? - (ANSWER)forms the prominence of
the cheek
how the tramporomandibular joint affect the opening - (ANSWER)the gliding
action forms the second phase of mouth opening and movement
Paraotid glands - (ANSWER)biggest gland and lies below the ear
what's the function of buccinator? - (ANSWER)serves to compress the cheeks,
sublingual? - (ANSWER)bartholin duct
submandular - (ANSWER)warthons
the primary source of innervention to the oral cavity is? - (ANSWER)trigeminal
nerve
what is the function of the paranasal sinus? - (ANSWER)to lighten the weight of
the skull
what are the bacteria associated with caries? - (ANSWER)S. Mutans and
Lactobacilli
NDAEB EXAM PREPARATION QUESTIONS AND
CORRECT ANSWERS 2024/2025 GRADED A+.
is the periodontal ligament capable of repair - (ANSWER)yes the PDL is capable of
repair
what stage is the enamel and Dentin formed? - (ANSWER)ectoderm - enamel
Mesoderm- dentin
periods of prenatal development are? - (ANSWER)Preimplantation period: the
process of the parents chromosome joining which is called meiosis
Embryonic period: 2nd to 8th week
fetal period: 9th week till birth
ectoderm forms? - (ANSWER)skin, brain, spinal cord, hair, nail, enamel of teeth,
lining of oral cavity
mesoderm forms? - (ANSWER)bones, muscle, circulatory system, kidney, duct,
reproductive system, dentin, pulp
endoderm forms? - (ANSWER)digestive system, lungs, urogenital system
tooth development? - (ANSWER)initiation stage/six to seventh week-inductions
, 2
bud stage (8 weeks) - proliferation (dental lamina)
cap stage (9-10 week) - proliferation, differential, enamel organ
bell stage (11 -12 weeks) - bell with four cells types and dental papilla into 2 cells
apposition stage- induction, proliferation
maturation stage/varies per tooth- maturation
osteoblast means? - (ANSWER)add bone
osteoclast means? - (ANSWER)resorbed (taken away)
how does osteoblast and osteoclast work together? - (ANSWER)when force is
applied, bone will be resorbed (osteoclast) and will be deposited back of the
tooth to fill in the space
how does shedding and exfoliation act with permanent and primary teeth? -
(ANSWER)shedding and exfoliation is the normal process by which primary teeth
are lost as succedaneous (permanent) teeth development
bones of the face? - (ANSWER)parental bone, frontal bone, occipital bone,
temporal bone
what are the sutures on the skull? - (ANSWER)coronal suture, squamous suture,
occipitomastiod suture
, 3
what does the zygomatic arch help form? - (ANSWER)forms the prominence of
the cheek
how the tramporomandibular joint affect the opening - (ANSWER)the gliding
action forms the second phase of mouth opening and movement
Paraotid glands - (ANSWER)biggest gland and lies below the ear
what's the function of buccinator? - (ANSWER)serves to compress the cheeks,
sublingual? - (ANSWER)bartholin duct
submandular - (ANSWER)warthons
the primary source of innervention to the oral cavity is? - (ANSWER)trigeminal
nerve
what is the function of the paranasal sinus? - (ANSWER)to lighten the weight of
the skull
what are the bacteria associated with caries? - (ANSWER)S. Mutans and
Lactobacilli
