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Chapter 11 Part 3 Facial Bones Nasal and Zygomatic Arch Maxillary • Body • _________ Process • _________ Process • Alveolar Process Maxillary • ___________ Process • Anterior Nasal Spine • __________ Palatine • ‘L’ shaped • Horizontal • Posterior ____________ • Vertical • Between maxilla and __________ Zygomatic (Malar) • Zygomatic ____________ • Zygomatic _________ Nasal Cavity • Nasal • __________ • Septum • Cartilage • Bony • ___________ • Conchae • Superior and Middle (__________) • Inferior Lacrimal • Posterior to maxillae _______________ • Tear Duct Facial Bones Imaging • PA Caldwell • Waters • Lateral • 70-80kV • 40” SID PA Caldwell • ___________Perpendicular to IR • 15˚ Caudad • Floor of orbits increase to ________ • CR to exit __________ • Could be lower Waters • Parietoacanthial projection • ___________________to IR • OML 37˚ • Midsagittal Plane Perpendicular • CR to exit _______________ Waters • Petrous ridges _____________ to maxillary sinus • Equidistance of ____________ orbital walls and _________ cranium Lateral • Area of interest closest to IR • Position as normal lateral • CR to ________________ Nasal Bone Imaging • Waters • Laterals • Waters – 70-80 kV • Laterals – 50-60 kV • 40” SID Laterals • Usually ___________ • Lateral positioning • CR to _______________ • Tight collimation Zygomatic Arch Imaging • AP Towne • SMV • Tangential • 50-60 kV • 40” SID AP Towne • Routine Towne positioning • CR ____________to glabella (through arches) • Decrease technique (Bone) Submentovertex (SMV) • Routine __________positioning • Decrease technique (Bone) Tangential • If bilateral zygomatic arches are ______________ • Start in _________ • ________________head 15˚ toward affected side • CR to zygomatic arch
