Mandible
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AP Axial Towne's (Modified)

UPRIGHT BUCKY
Patient position
Erect or prone for PA; supine for Towne's; semi-prone for axiolaterals.
Part position
PA: forehead and nose on IR, OML perpendicular. Axiolateral: head true lateral, then rotated 30° toward IR.
Central ray
PA: perpendicular to acanthion. Towne's: 35° caudal to glabella. Axiolateral: 25° cephalic to mandibular angle.
IR placement
24x30 cm; divided for axiolaterals.

Tech pearls

  • Multiple obliques needed for whole mandible — one for body, one for ramus.
  • Have patient open mouth slightly to project condyles below skull.
PABilateral Axiolateral Obliques