Anatomy
Facial Bones
Zygoma/
Mandible
TMJS
Misc
100

How many facial bones are present in the skull?

What is 14 facial bones?
100

What is the CR and collimation for the lateral facial bones?

What is entering the lateral surface of zygomatic bone halfway b/w outer canthus and EAM and a collimation of 6 x 10"?

100

What is the CR for the PA Axial projection of the mandibular rami?

What is the CR directed 20-25-degrees cephalad to exit the acanthion?

100

What line is used to position the skull for the AP axial projection for the TMJs

What is the OML?

100

What is the field size of the lateral nasal bones projection?

What is 3x3"?

200

What bone is the largest immovable bone of the face?

What is the maxilla?

200

What lines are used for the positioning of the parietoacanthial projection of the facial bones?

What is the OML at a 37-degree angle to the IR and the MML perpendicular to the IR?

200
What is the centering for the AP Axial (Modified Towne) projection of the zygomatic arches?

What is the CR angled 30-degrees caudad to enter glabella 1" superior to nasion?

200

What is the image criteria for the AP axiolateral oblique projection of the TMJS?

What is the TMJ, condyle lying in fossa in closed-mouth, and condyle inferior to articular tubercle in open-mouth position?

200

What should be seen on an image of the nasal bones?

What is the nasal bones, anterior nasal spine, and the frontonasal suture?

300

What is the anterior process on top of the ramus of the mandible?

What is the coronoid process?

300

What is the difference between the parietoacanthial and acanthioparietal projection of the facial bones?

What is the acanthioparietal projection resulting in more magnification of the anatomical structures?

300

How should the head be positioned for the tangential zygomatic arch projection?

What is the rotation of the MSP 15-degrees toward side being examined and tilting of top of head 15-degrees away from side being examined?

300

What is the CR for an AP axial projection of the TMJs?

What is the CR angled 35-degrees caudad centered midway between TMJS, entering a point 3" above nasion?

300

What is the only projection with a 10 x 12 collimation?

What is the AP Axial (Modified Towne) Zygomatic Arches?

400

What structures do the maxilla and mandible have in common?

What is the alveolar processes?

400

What is the imaging criteria for the parietoacanthial projection of the facial bones?

entire orbits and facial bones

no rotation or tilt evidenced by distances b/w lateral borders of the skull and the orbits equal on each side

MSP aligned w/ long axis of collimated field

petrous ridges projected immediately below maxillary sinuses

400

When is a tangential zygomatic arch projection performed?

When the zygomatic arches are not symmetrically seen on the SMV projection of the zygomatic arches?

400

What indication should be performed for the AP axial projection of the TMJs?

What is one exposure made with mouth closed and another made with mouth open (if not contraindicated)?

400

What is the image criteria for the AP Axial projection of the zygomatic arches?

What is no overlap of zygomatic arches by mandible, no rotation or not evidenced by symmetric arches, zygomatic arches projected lateral to mandibular rami, and MSP of head aligned to long axis of collimated field?

500

What bones does the maxilla articulate with?

What is all other facial bones except for the mandible?
500

What is the collimation criteria for the PA Axial (Caldwell) of the facial bones?

What is the radiation field extending about .5-1" beyond lateral sides of face, superiorly to include supraorbital margins, and inferiorly to the chin?

500

How much should the head be rotated for each of the three structures of the axiolateral/axiolateral oblique mandible?

What is a true lateral for the ramus, 30-degrees toward IR for the body, and 45-degrees toward IR for the symphysis?

500

What is the collimation criteria for the axiolateral oblique projection (Law method) of the TMJS?

What is the radiation field extending from the outer canthus to the posterior edge of the auricle and from the midparietal region to the inferior edge of the auricle?

500

What projections will clearly demonstrate any medial or lateral displacement of fractures of the mandibular rami?

What is the PA and PA Axial projections of the mandible?

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