IP3F
How do you know a lateral facial bones projection is properly positioned?
1. MSP parallel to IR
2. IPL perpendicular to IR
3. IOML perpendicular to front edge of IR.
CR location for Axiolateral oblique TMJ projection?
directed 15 degrees caudad exiting through the TMJ closest to the IR. CR enters 1-½ inches superior to the upside EAM.
how do you know a modified waters facial bones projection is properly positioned?
1. OML forms 55 degree angle with the IR
CR location for SMV Skull Projection?
CR is directed through the Sella turcica perpendicular to the IOML. The central ray enters MSP of the throat between the angles of the mandible and passes through a point ¾ inches anterior to the level of the EAM.
How do you know a Lateral Sinus Projection is properly positioned?
1. MSP parallel with plan of IR
2. IPL perpendicular to the IR
3. IOML perpendicular to front edge of IR
what is the CR location for a Lateral facial bones projection?
perpendicular, entering the lateral surface of zygomatic bone, halfway between the outer canthus and the EAM.
how do you know a PA axial mandibular rami projection if properly positioned?
1. OML perpendicular to IR
2. MSP perpendicular to IR
CR location for Modified waters facial bones projection?
perpendicular, exits acanthion
How do you know a Lateral skull projection is properly positioned?
1. MSP parallel to IR
2. IOML perpendicular to front edge of IR
3. IOML also parallel to long axis of IR
4. IPL perpendicular to IR
CR location for Lateral Sinus Projection?
directed horizontal, enters ½-1 inch posterior to the outer canthus.
How do you know a PA Axial Caldwell facial bones projection if properly positioned?
1. center MSP to midline of IR
2. OML perpendicular to IR
3. MSP perpendicular to IR
CR location for PA Axial Mandibular Rami?
angled 20-25 degrees cephalad to exit the acanthion.
how do you know an AP Axial TMJ projection if properly positioned?
1. MSP perpendicular to IR
2. OML perpendicular to IR
CR location for a Lateral Skull projection?
CR is perpendicular, entering 2 inches superior to the EAM.
always perform two lateral projections for the skull. Left and right lateral skulls are to be performed.
How do you know a waters Sinus projection if properly positioned?
1. MSP perpendicular to IR
2. OML forms a 37 degree angle with IR
3. MML perpendicular to IR
CR location for PA Axial Caldwell facial bones projection?
angled 15 degrees caudad to exit the nasion
How do you know a lateral nasal bones projection is properly positioned?
1. MSP parallel to IR
2. IPL perpendicular to IR
3. IOML parallel with transverse axis of IR
CR location for AP Axial TMJ projection?
directed 35 degrees caudad, centered midway between the TMJ’s, entering a point approximately 3 inches above the nasion.
**expose one image with mouth closed, and one image with mouth open**
how do you know an AP Axial (reverse Caldwell) skull projection is properly positioned?
1. MSP and OML perpendicular to IR
CR location for Waters Sinus Projection?
1. horizontal to IR, exits the acanthion.
How do you know and Axiolateral oblique TMJ projection is properly positioned?
1. center IR 1/2 inch anterior to EAM.
2. rotate MSP 15 degrees toward IR
3. IPL perpendicular to IR.
4. AML parallel with transverse axis of IR.
5. complete one mouth closed, one mouth open.
CR location for lateral nasal Bones projection?
perpendicular to the bridge of the nose, ½ inch distal to the nasion.
How do you know an SMV Skull Projection if properly positioned?
1. MSP centered to midline of IR
2. IOML as parallel to IR as possible
3. MSP perpendicular to IR
CR location for AP Axial (reverse Caldwell) skull projection?
Directed to the nasion at an angle 15 degrees cephalad.
What structure is BEST SEEN on a Caldwell Sinus Projection?
frontal sinus