RAD POSI: NASAL BONES and ZYGOMATIC ARCHES

LATERAL PROJECTION

Projection to show the nasal bone, and the soft structure of the bone?

½ inches distal to the nasion

Reference point of the lateral projection of nasal bones

SUBMENTOVERTICAL PROJECTION

Projection where the patient is seated-upright or supine; hyperextend the neck so that IOML is nearly // with the IR; the head rested on its vertex?

Entering the throat at the level of 1 inch posterior to the outer canthi

Reference point of SMV

MSP: approximately 15 degrees TOWARD the side being examine

• - Tilt the top of the head approximately 15 degrees AWAY from the side being examine

What is angulation of the MSP and the degree of head tilt in TANGENTIAL PROJECTION to show zygomatic arch wherein px is in seated position?

1 inch posterior to outer canthus

Reference point to show zygomatic arch in tangential projection

perpendicular to the IOML

What is the CR angulation in SMV and Tangential Projection to show zygomatic arch?

15 degrees TOWARDS the side being examine

What is angulation of the degree of head tilt in TANGENTIAL PROJECTION to show zygomatic arch wherein px is in supine position?

MAY METHOD

What is the method for px with depressed fx flat cheekbone?

1 and ½ inches posterior to outer canthus

Reference point of May Method

MSP: 15 degrees AWAY from the side being examined

• - 15 degrees top of the head tilted AWAY from the side being examine

Angulation of the MSP and the head tilt in May Method

30 degrees caudad

1 inch above the nasion

In Modified Towne Method, what is CR angulation and reference point to see the zygomatic arch?