Chapter 11 - Sinuses/Mandible/TMJ Positioning

Question 1

Mandible Protocol

Answer 1

Axiolateral (both sides)
PA Caldwell
Townes

Question 2

Sinuses Protocol

Answer 2

Lateral
Modified Caldwell
Waters
Waters OM
SMV

Question 3

TMJ Protocol

Answer 3

Townes
Modified Law or Schuller

Question 4

Sinuses viewed in Lateral projection

Answer 4

Frontal
Ethmoid
Sphenoid
Maxillary

Question 5

Where is OML to the IR in Modified Caldwell for sinuses

Answer 5

OML 15 degrees from perp

Question 6

Where does the CR exit for Modified Caldwell (sinuses)

Answer 6

Nasion

Question 7

What is perp to the IR in Waters

Answer 7

MML

Question 8

What sinuses are viewed in Waters projection

Answer 8

Frontal, Maxillary

Question 9

What sinuses are viewed in Open Mouth Waters projection

Answer 9

Sphenoid

Question 10

What sinuses are viewed in SMV

Answer 10

Sphenoid
Ethmoid
Maxillary

Question 11

What is parallel to the IR in SMV projection

Answer 11

IOML

Question 12

What is the total degree of head tilt and CR angle for Axiolateral position

Answer 12

25 degrees

Question 13

CR for PA Caldwell (Mandible)

Answer 13

@ Lips

Question 14

What is perp to the IR for Townes (Mandible)

Answer 14

OML

Question 15

What angle is used for Townes

Answer 15

30 degrees caudal

Question 16

Where is the CR for Townes (Mandible)

Answer 16

1” above Glabella
Crosshairs running through ramus

Question 17

Where does the CR exit for Axiolateral projection

Answer 17

Mandible body of interest

Question 18

Where is the CR for Townes (TMJ)

Answer 18

2” superior to nasion
Crosshairs running through TMJ

Question 19

What is perp to the IR in a Modified Law projection

Answer 19

IPL

Question 20

What is the tube angle and face rotation in Modified Law projection

Answer 20

Rotate face 15 degrees towards IR
15 degree caudal angle

Question 21

CR for Modified Law projection

Answer 21

1.5” superior to upside EAM

Question 22

What is perp to the board in the Schuller projection

Answer 22

IPL

Question 23

What is the tube angle in Schuller projection

Answer 23

25-30 caudal

Question 24

Where is the CR for Schuller projection

Answer 24

2” above EAM

Question 25

What sinuses are viewed in Modified Caldwell

Answer 25

Frontal Ethmoid Maxillary

Question 26

What mandible position best demonstrates the ramus

Answer 26

Lateral

Question 27

Axiolateral projection for Mandible; 10-15 degree rotation best demonstrates:

Answer 27

General survey of mandible

Question 28

Axiolateral projection for Mandible; 30 degree rotation best demonstrates:

Answer 28

Body of mandible

Question 29

Axiolateral projection for Mandible; 45 degree rotation best demonstrates:

Answer 29

Mentum of mandible

Question 30

Axiolateral oblique projection - What must be done to prevent the ramus of the mandible from being superimposed over the cervical spine

Answer 30

Extend the chin

Question 31

If mandible body is the area of interest, what is perp to the IR in PA projection

Answer 31

AML

Question 32

What aspect of the mandible is best visualized with AP axial projection?

Answer 32

Condyloid process

Question 33

What crainal line is parallel to the floor for orthopantomography of the mandible

Answer 33

IOML

Question 34

What projection provides a bilateral and functional study of the TMJ

Answer 34

Modified Law