RAD POSI: FACIAL BONE AND FACIAL PROFILE

Bone of the face

What is the structure shown in Lateral Projection of Facial Bone?

Enter the lateral surface of the zygomatic bone between the outer canthus and the EAM

Lateral Projection reference point of facial bone

WATER’S METHOD

What method is PARIETOACANTHIAL PROJECTION?

OML: 37 degrees to the plane of IR

¾ inches away from the grid device

In positioning the px for WATER’S METHOD, what is the angulation of OML and how far is the nose from the grid device?

Exit to the Acanthion

Reference point of Water’s Method

Orbit, Maxillae and zygomatic arches

Structures shown in Water’s Method

55 degrees to the plane of the IR

What is the angulation of OML in relation to the IR in modified Water’s Method?

Acanthioparietal Projection

What is the projection of Reverse Water’s Method?

Supine

37 degrees

Px position in Reverse Water’s Method and its OML angulation

Superior Facial Bone

Structure Shown if the CR is perpendicular entering the Acanthion?

lower third of the orbits

In Caldwell Method, if the CR angulation is 15 degrees caudad, where is the petrous ridges projected to?

below the inferior margins of the orbits

In Caldwell Method, if the CR angulation is 30 degrees caudad, where is the petrous ridges projected to?