Skull

Question 1

Facial bones - occipital-mental

Answer 1

The beam is centred on the bulky/receptor before the patient is positioned
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Question 2

Facial bones - occipital-mental 30 degree caudal

Answer 2

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Question 3

Mandible PA

Answer 3

The centred ray is directed perpendicular to the receptor and centred in the midline at the levels of the angles of the mandible.

Question 4

Mandible lateral oblique 30 degree cranial (supine)

Answer 4

The collimated vertical beam is angled 30 degree cranially at an angle of 60 degrees to the receptor and is centred 5 cm inferior to the angle of the mandible remote from the receptor.

Question 5

orbits - occipito-mental (modified)

Answer 5

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Question 6

Orthopantomography (teeth)

Answer 6

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Question 7

Sinuses - occipito-mental

Answer 7

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Question 8

Occipito-frontal

Answer 8

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Question 9

Occipito-frontal 30 degree cranial (reverse towne’s)

Answer 9

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Question 10

Skull - lateral erect

Answer 10

Midway between the glabella and the external occipital protuberance to a point approximately 5 cm superior and posterior to the external auditory meatus.

Question 11

Skull - fronto-occipital (supine/trolley)

Answer 11

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Question 12

fronto-occipital (supine/trolley) 30 degree caudal (towne’s projection)

Answer 12

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Question 13

Skull - lateral (supine/trolley)

Answer 13

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Question 14

Zygomatic arches - infero-superior

Answer 14

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Question 15

Skull head CT

Answer 15

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