Xray

RadiologyUpdated 1 min read
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Figure: Xray

SKULL & FACIAL RADIOGRAPHS

Figure: SKULL & FACIAL RADIOGRAPHS
RadiographBest used to detect / visualizeHigh-yield point
Lateral cephalogramSkeletal + dental relationships, orthodontic analysisSNA, SNB, ANB, facial growth pattern
PA cephalogramFacial asymmetry, transverse discrepanciesCompare right vs left
Submentovertex (SMV / basal view)Zygomatic arches, cranial base, mandibular condylesBest for zygomatic arch fractures
Waters (occipitomental)Maxillary sinus, midface fractures, orbital floorClassic view for maxillary sinus
Caldwell viewFrontal sinus, ethmoid sinus, orbital regionOccipitofrontal projection
Reverse Towne'sCondylar neck/head fracturesEspecially useful for medial displacement
Towne's viewOccipital bone, condyles, posterior cranial structuresLess commonly used in routine dental practice
Lateral skullCranial bones, sella turcica, fracturesAlso useful for cephalometry
PA skullFrontal bone, frontal sinus, asymmetryFacial/skull assessment
Oblique lateral jawBody/ramus of mandibleUseful when intraoral imaging isn't possible
Mandibular occlusalLingual/buccal cortical expansion, anterior mandibleLocalization of lesions/stones
Maxillary occlusalAnterior maxilla, impacted teeth, expansionUseful for localization

SINUS RADIOGRAPHS ⭐

ViewSinus/pathology best demonstrated
Waters⭐ Maxillary sinus
Caldwell⭐ Frontal + anterior ethmoid sinuses
Lateral skullSphenoid sinus + all sinuses in profile
SubmentovertexSphenoid sinus, zygomatic arches
PanoramicMaxillary sinus floor/teeth relationship

FRACTURES ⭐⭐⭐

Suspected fractureUseful radiograph
Condylar fractureReverse Towne's
Zygomatic arch fractureSubmentovertex (SMV)
Midface / Le Fort fracturesWaters
Orbital floor fractureWaters
Mandibular body fracturePA/lateral oblique + panoramic
General mandibular fracturePanoramic
Maxillary fractureWaters
Zygomaticomaxillary complex fractureWaters + CT/CBCT

TEMPOROMANDIBULAR JOINT

RadiographUse
Transcranial projectionCondylar morphology/position
Transpharyngeal viewCondyle
Transorbital viewCondyle
Reverse Towne'sCondylar head/neck, fractures
PanoramicScreening of both condyles
CBCT⭐ Bony TMJ morphology
MRI⭐ Disc + soft tissues, not an X-ray