Mandible and orbits
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Mandible and Orbits. Things to know for mandible . 3 views AP, AP Axial, Axiolateral Page 404-406. Cassette. 8x 10 lengthwise. AP Mandible. Patient supine on table Midline with midline Tuck chin until the OML is perpendicular with IR No rotation or tilt.

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Mandible and Orbits

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Mandible and orbits

Mandible and Orbits


Things to know for mandible

Things to know for mandible

  • 3 views

  • AP,

  • AP Axial,

  • Axiolateral

  • Page 404-406


Cassette

Cassette

  • 8x 10 lengthwise


Ap mandible

AP Mandible

  • Patient supine on table

  • Midline with midline

  • Tuck chin until the OML is perpendicular with IR

  • No rotation or tilt


Mandible and orbits

CR is perpendicular to junction of lips

SID 40


What is seen

What is seen

  • Mandibular rami

  • Lateral portion of body


Ap axial

AP Axial

  • 8 x 10 lengthwise

  • Shield

  • Marker

  • [email protected]

  • Hold breath


Positioning

Positioning

  • Patient supine

  • Midline to midline

  • Tuck chin to OML is perpendicular

  • No rotation or tilt


Mandible and orbits

CR is angled 35-40 Degrees Caudad

Entering at the Glabella

SID 40


What to look for

What to look for

  • Condyloid processes

  • Temporomandibular fossae


Axiolateral

Axiolateral

  • 8 x 10 Crosswise

  • 75 @ 5

  • Shield

  • Marker

  • Hold breath

  • Collimate to mandible


Positioning1

Positioning

  • Rotate the head in a lateral position. ( sometime body has to roll)

  • Side of interest on table.

  • Extend neck so no imposition of spine


Mandible and orbits

CR is angled 25 degrees cephalad

Exit the region of interest

Sid 40


Seen on film

Seen on Film

  • Rami

  • Body

  • And mentum nearest the film


Orbits

Orbits

  • One View Rhese Method

  • 8x10

  • Shield

  • Marker

  • 80 @ 18

  • Hold breath

  • Collimate to area of interest


Positioning2

Positioning

  • Patient prone on table

  • Place patient’s chin, check and nose against table

  • The mid sagittal plane froms a 53 degrees angle with IR

  • Acanthiomeatal line perpendicualr to IR


Mandible and orbits

CR perpendicular to the downside orbit

SID 40


Seen on film1

Seen on film

  • Optic canal

  • Optic foramen


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