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1) During infantile swallowing the mandible is stabilised by

One answer only.

muscles of facial expression

muscles of mastication

suprahyoid muscles

infrahyoid muscles

none of the above

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2) The infantile swallow is changed to mature swallow by

One answer only.

end of 6 months

12-15 months

more than 2 years

32 weeks

none of the above

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3) The time when the infantile swallow is completely developed in utero is

One answer only.

29 weeks

11 weeks

16 weeks

32 weeks

none of the above

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4) The gumpad of the neonate is divided into

One answer only.

10 segments

8 segments

6 segments

7segments

none of the above

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5) The time when the mandible stops remodelling

One answer only.

18 years

27 years

when the third molar is erupted

25 years

none of the above.

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6) Maximum post natal growth is in which of the following structures?

One answer only.

Nasomaxillary complex

mandible

maxilla in particular

Cranium as a whole

none of the above

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7) The mode of growth in bone tissue is mainly

One answer only.

appositional

interstitially

both of the above methods

none of the above methods

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8) With respect to the differences between basal bone of mandibular corpus and the alveolar bone, all the following are false EXCEPT

One answer only.

staining of the tissues from the two sources

metabolic differences in the osteocytes.

functional difference only

absence of osteocytes

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9) The primary sites which are responsible for the mandibular growth is/are

One answer only.

condyles alone

condyles and posterior border of ramus

alveolar crest and condyles

alveolar crest and posterior border of ramus of mandible

none of the above is correct

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10) Of the following the structure that shows least post natal growth

One answer only.

cranium

mandible

maxilla

nasomaxillary complex

none of the above

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11) A dentist broke the needle accidentally injected into the anterior border of mandible in a 6 year old child. The needle was removed but a part of it was left behind by mistake.What will be the fate of the needle fragment?

One answer only.

Will soon free from bone and become embedded in soft tissue due to bone resorption.

Will be more deeply embedded than when it was when it was present initially due to bone deposition.

Will remain stationary in its place but translate forward with the bone.

Will stimulate bone destruction around the needle fragment

None of the above

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12) The most accurate method of analysing the growth of the bone is

One answer only.

radiographs

CT

Tetracycline stains

Implants

none of the above

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13) The normal facial index for males and females is

One answer only.

betweeb 85 and 90

between 60 and 70

between 70 and 80

exactly 95

none of the above

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14) All the following are sites of cartilaginous growth postnatally EXCEPT

One answer only.

spheno-occipital synchondrosis

nasal septum

fronto maxillary suture

mandibular condyle

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15) A mother who had just given birth to a healthy male child noticed that the neonate had a slightly retruded mandible and was worried about it.which of the following is true

One answer only.

This is a abnormal in male child but will be alright with growth

This is normal in a neonate and need not cause alarm

If the child had been female this must be viewed with caution and may be pathogonomic

This is due to injury during delivery and will be alright after a few years

None of the above