RAD: Ch. 25, 26, 29 - Extraoral Imaging

Ch. 25, 26, 29

Lateral jaw projection

impacted teeth, jaw fractures and lesions on mandible

Lateral jaw projection

Lateral cephalometric projection

growth and development, trauma, disease, developmental abnormalities

Posterior-anterior skull projection

growth and development, trauma, disease, developmental abnormalities

Waters projection

maxillary sinus area

Submentovertex projection

position of condyles, base of skull and fractures of zygomatic arch

Reverse towne projection

fractures of condyle and ramus

Extraoral bitewing projection

Transcranial projection

superior surface of condyle and articular eminence

Temporomandibular joint tomography

examine TMJ

Ghost image

Lead apron artifact

Reverse smile line

chin tipped up

Exaggerated smile line

chin tipped down

Anterior teeth thin and blurred

too far forward on bite block

Block shaped teeth

too far back on bite block

Head is turned to the right

Vertebrae on film

patient is slumped