RAD POSI: MANDIBULAR SYMPHYSIS, AND MANDIBULAR BODY

AP AXIAL PROJECTION

What projection to show mandibular symphysis and mental foramina?

RF: to the mandibular symphysis (m/way b/n the lips and the tip of the chin)

CR: 40-45 degrees

RF and CR of AP AXIAL PROJECTION to show mandibular symphysis

PA PORJECTION

Projection shows mandibular body and rami

20-25 degrees cephalad

What is the CR angulation of PA AXIAL PROJECTION to show the mandibular rami?

30 degrees cephalad

CR Angulation to show mandibular body and TMJs

AXIOLATERAL OBLIQUE PROJECTION

What projection to pass through mandibular region of interest?

25 degrees cephalad

CR angulation of AXIOLATERAL OBLIQUE PROJECTION of mandibular body

SMV Projection

Projection that shows coronoid and condyloid processes of the rami

TEMPOROMANDIBULAR ARTICULATION

Projection that shows condyles of mandible, mandibular fossae of the temporal bone

35 degrees caudad midway b/n TMJs 3 inches above the nasion

CR angulation and RF of TEMPOROMANDIBULAR ARTICULATION

25-30 degrees

CR angulation in TMJs open and closed mouth - AXIOLATERAL PROJECTION

15 degrees caudad, exits through TMJ closest about 1 and ½ superior to the upside-down EAM

CR angulation and RF of AXIOLATERAL OBLIQUE PROJECTION to show condyles and neck of mandibles