Projections
MSP is rotated 15 degrees to IR for this projection of the TMJ?
What is the Law method?
The CR for this TMJ projection enters 3" above the nasion.
What is the AP Axial?
This bone is involved with a tripod fracture.
What is the zygomatic bone?
The maximum angle for this projection is 25-degrees.
What are the axiolaterals of the mandible?
Best demonstrates medial or lateral displacement of fragments in fractures of the mandibular rami.
What is the PA Axial?
The head is rotated 30 degrees to demonstrate this portion of the mandible.
What is the body?
The CR exits this for the PA axial of the mandibular body.
What is the junction of the lips?
Only facial bone to contain a sinus.
What is the maxilla?
A 35-degree angle is required for the AP axial mandible if this is perpendicular to the IR.
What is the OML?
Respiration phase for all headwork.
What is suspended?
The head will be positioned 15-degrees to the IR for this mandible projection.
What is a general survey?
CR centered 1" above glabella for this projection for the mandible.
What is the AP axial (Towne method)?
For the SMV, this will be just posterior to the mandibular condyles.
What are the petrous pyramids?
The degree of angulation for an oblique mandible with a 10 degree head tilt.
What is 15 degrees cephalad?
The Schuller method requires this much degree of head rotation.
What is 0 degrees?
This projection will best demonstrate a deviation of the bony nasal septum.
What is the Water's view?
The angle for an AP axial (modified Towne) projection of the TMJs when the IOML is perpendicular to the IR.
What is 42-degrees caudad?
Articulates with all facial bones, except the mandible.
What is the maxilla?
CR angle for a Caldwell projection.
What is 15-degrees caudad?
The CR exits this landmark for a PA Mandibular Rami projection.
What is the acanthion?
These are best demonstrated on an AP Axial projection of the mandible.
What are the condyles?
CR angle for a PA axial projection of the mandible with the AML perpendicular to the IR.
What is 30-degrees cephalad?
Largest and densest bone in the face.
What is the mandible?
For the modified Waters, the OML is adjusted to form this angulation with the IR.
What is a 55-degree angle?
If the mandibular rami are not superimposed for lateral facial bones, this error has occurred.
What is rotation?