Facial Bones

Question 1

Parietoacanthial Projection Waters Method Facial/Nasal:
CR-
Position-
SID-
Technique-
Instructions-

Answer 1

• CR-exits at acanthion, MML and MSP perp
• Extend neck and rest chin against IR
• 40”, 8x10 LW
• 75@20
• Suspend respiration

Question 2

Lateral Facial Bones:
CR-
Position-
SID-
Technique-
Instructions-

Answer 2

• Center at zygoma and midway between outer can thus and EAM
• Rest affected side against IR w/ IPL perp, and MSP and IOML parallel
• 40”, 8x10 LW
• 70@6
• Suspend respiration

Question 3

PA Axial Projection Caldwell Method Facial Bones:
CR-
Position-
SID-
Technique-
Instructions-

Answer 3

• Angle 15 degrees caudal to exit at the nasion w/ OML and MSP perp
• rest pt’s nose and forehead against IR
• 40”, 8x10 LW
• 75@20
• suspend respiration

Question 4

SMV Facial/Zygomatic Arches:
CR-
Position-
SID-
Technique-
Instructions-

Answer 4

• Midway between zygomatic arches and 1.5” below mandibular symphysis.
• IOML parallel and MSP perp
• 40”, 8x10 CW
• 70@8
• suspend respiration

Question 5

Oblique Inferosuperior (Tangential) SMV-Zygomatic Arch:
CR-
Position-
SID-
Technique-
Instructions-

Answer 5

• center to zygomatic arch of interest
• IOML is parallel and MSP is perp, then rotate head 15 degrees towards the SOI and tilt chin 15 degrees towards SOI.
• 40”, 6x6
• 70@8
• suspend respiration

Question 6

PA Mandible:
CR-
Position-
SID-
Technique-
Instructions-

Answer 6

• Exits at junction of lips
• rest pt’s nose and forehead against IR w/ OML and MSP perp
• 40”, 8x10 LW
• 75@16
• suspend respiration

Question 7

Axiolateral Mandible General Survey:
CR-
Position-
SID-
Technique-
Instructions-

Answer 7

• exits at the mandibular ROI
• Place head in true lateral and rotate head 10-15 degrees and tilt head 25 degrees.
• 40”, 8x10 CW
• 75@8
• suspend respiration

Question 8

Axiolateral Mandible Body:
CR-
Position-
SID-
Technique-
Instructions-

Answer 8

• exit at the mandibular ROI
• place head in true lateral and rotate the head 30 degees and tilt it 25 degrees
• 40”, 8x10 CW
• 75@8
• suspend respiration

Question 9

Axiolateral Oblique Projection Modified Law Method TMJ       Open Mouth:
CR-
Position-
SID-
Technique-
Instructions-

Answer 9

• angle 15 degrees caudal centering 1.5” superior to upside EAM
• rest lateral SOI against IR w/ IPL perp and IOML parallel, and face is rotated towards IR 15 degrees.
• 40”, 5x5
• 75@12
• suspend respiration

Question 10

Schuller Method (Axiolateral) TMJ Closed Mouth:
CR-
Position-
SID-
Technique-
Instructions-

Answer 10

• Angle 25-30 degrees caudal to 1/2” anterior and 2” superior to upside EAM
• true lateral position with IPL perp, IOML and MSP parallel
• 40”, 5x5
• 75@12
• suspend respiration