1. Zygomatic Arches

2. Jug Handle View R

3. Zygomatic Arches- SMV (jughandle view)
Note technique considerably reduced! R
Temporal process of zygoma
Zygomatic arch
zygomatic process of temporal bone

4. Note difference in technique between SMV - skull and SMV - zygomatic arch

5. Zygomatic arches- SMV Similar to position for skull or sinus SMV
CR perpendicular to IOML,between arches, 1” posterior to outer canthus
Tilt image receptor if possible

6. Zygomatic arches- SMV Evaluation Criteria
No rotation of head
Arches free from superimposition of overlying structures
Arches symmetric
Arches not burned out

7. You make the Call! R R
Depression fx. Left zygomatic arch

8. What do you do when you get a patient with flat cheekbones or depression fx. ?

9. Single Zygomatic Arch – tangential projection

10. Single Zygomatic Arch -tangential projection

11. Single Zygomatic Arch-Tangential projection
CR to side of interest, perp. To IOML
Tilt top of head 15 degrees away from side of interest
? Rotate midsagital plane15 degrees towards side of interest
Bilateral

12. Tangential projection
Single Zygomatic Arch
Tangential projection

13. Zygomatic Arches-AP Axial
Occipital
Mandible
Zygomatic arch

14. Zygomatic Arch-AP Axial
Similar to Towne, except CR enters at glabella instead of 2” above
CR 30 deg. Caudad to OML

15. Paired bones making up superior bony wall of nasal cavity –
Nasal bones
Paired bones making up superior bony wall of nasal cavity –
bridge of nose
Along with lacrimal bones, thinnest and most fragile bones of entire human body !!

17. Nasal Bones

19. Naso-frontal suture (nasion) Nasal bone Anterior nasal spine
Lateral Nasal bones R
Naso-frontal suture
(nasion)
Nasal bone
Anterior nasal spine A B C

20. Projections for Nasal Series
Lateral
Waters
Tangential?

21. Nasal bones-lateral projection
2 exposures on one film? (No longer- algorithm can’t process on digital)
8x10 lengthwise
CR perpendicular to bridge of nose, 1/2” distal to nasion
Close collimation L R X

22. Nasal bones-lateral projection

23. Nasal Bones-Parieto-acanthial projection
Demonstrates displacement of bony nasal septum (Vomer and perp. Plate of ethmoid)
depressed fx’s of nasal wings R

24. Nasal bones- Tangential projection
Doesn’t work well on children, large foreheads, protruding front teeth, concave faces

25. Nasal Bones-Tangential projection