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Facial Bones

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Chapter 13 Facial Bones Part 1 Facial Bones 14 Bones 2 Maxillae 2 Zygomatic 2 Lacrimal 2 Nasal 2 Inferior nasal conchae 2 Palatine 1 Vomer 1 Mandible Maxillary ... – PowerPoint PPT presentation

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Title: Facial Bones


1
Chapter 13
  • Facial Bones
  • Part 1

2
Facial Bones14 Bones
  • 2 Maxillae
  • 2 Zygomatic
  • 2 Lacrimal
  • 2 Nasal
  • 2 Inferior nasal conchae
  • 2 Palatine
  • 1 Vomer
  • 1 Mandible

3
Maxillary
  • Largest _________________ facial bone
  • Upper jaw
  • __________
  • Central portion lateral to nose
  • __________________
  • Superior projection off body lateral to nose

4
Maxillary
  • __________________
  • Lateral projection
  • __________________
  • Inferior spaces for upper teeth
  • ____________________
  • Hard palate (cleft palate location)

5
Maxillary
  • Fused ________________to nose
  • ____________________
  • Anterior projection at fusion
  • _____________
  • Positioning landmark at base of anterior nasal
    spine

6
Palatine
  • L shaped
  • Vertical portion between _____________ of
    sphenoid
  • Horizontal portion makes up ______________________
    _____

7
Zygomatic(Malar)
  • Cheek bones
  • Articulations
  • ____________
  • Temporal
  • ____________
  • Sphenoid

8
Zygomatic
  • ______________________
  • Prominent lateral portion
  • _______________________
  • Thin bone extending from zygomatic prominence to
    temporal bone

9
Nasal
  • 2 fused bones
  • ________________
  • Positioning landmark superior to nasal bone
    fusion
  • Majority of nose ________________

10
Nasal Septum
  • Bony
  • - _____________ of ethmoid and _________
  • Septal cartilage anterior
  • _____________-
  • Forms mid to inferoposterior nasal septum.

11
Nasal ConchaeTurbinates
  • _______________________
  • Bony projection from lateral wall of nasal cavity
    projecting medially.
  • __________________nasal conchae
  • Extensions from ethmoid bone

12
Lacrimal
  • Small facial bone
  • Posterior to frontal process of maxilla

13
Imaging the Facial Bones
  • Routine
  • PA Caldwell
  • Waters
  • Lateral
  • 70 80 kVp
  • 40 SID

14
PA Caldwell
  • Prone
  • Pts forehead and nose touching table
  • _______________to IR
  • No tilt or rotation
  • __________tube angle
  • CR to exit the ___________________

15
PA Caldwell contd
  • ________________ should be in lower 3rd of
    orbits
  • _______________of orbits should be
    ____________from lateral skull
  • Shows Orbits, Petrious ridges, nasal septum,
    frontal, maxillary sinus

16
WatersParietoacanthial
  • Prone
  • Tip of pts _____________
  • OML forms ___________to IR
  • __________perpendicular
  • ____________plane perpendicular
  • CR to exit __________
  • Shows majority of facial bones and sinuses
  • ______________inferior to maxillary sinuses

17
Lateral
  • Right or left depending on area of interest
  • Put area of interest ______________
  • Pt in ________________
  • Rotate head so ________________is parallel
  • _________________perpendicular
  • ______ perpendicular to front of cassette
  • CR at ___________________

18
Imaging the Nasal Bone
  • Routine
  • Waters
  • Laterals
  • Waters 70 80 kVp
  • Laterals 50 60 kVp
  • 40 SID

19
Laterals
  • Right and Left Lateral
  • Position as ____________
  • CR directed through ____________-
  • Tight collimation
  • Soft tissue technique

20
Imaging the Zygomatic Bones
  • Routine
  • AP Towne
  • SMV
  • Tangential (If Zygos not seen on SMV)
  • 50 65 kVp
  • BONE TECHNIQUE

21
AP TowneZygo
  • Supine
  • Tuck chin so ________________to IR
  • Angle CR ____________
  • Or Tuck chin so _______________and angle ________
  • Center ________________to pass through mid arches

22
SMVSubmentovertex
  • Many ways to position
  • _______________to IR
  • ______________perpendicular
  • CR through arches
  • Technique is soft tissue to visualize zygos

23
Tangential
  • Position as ________
  • Rotate and tilt head __________affected side
  • CR to shave Zygo arch
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