CENTRAL RAY
Axiolateral and Axiolateral Oblique Mandible
What is directed 25 degrees cephalad to pass directly through the mandibular region of interest?
PA Projection Mandibular Rami
What are the mandibular body and rami. The central part of the body is not well shown because of the superimposed spine. This radiographic approach is usually employed to show medial or lateral displacement of fragments in fractures of the rami?
TMJ Syndrome
What is dysfunction of temporomandibular joint?
Largest and Most symmetrical sinus
What is Maxillary?
Axiolateral TMJ
What is the Modified Schuller Method?
Axiolateral Oblique TMJ
What is directed 15 degrees caudad and exiting through the TMJ closest to the IR. The central ray enters about 1 1/2 inches superior to the upside EAM?
Axiolateral and Axiolateral Oblique Mandible
What is each projection shows the region of the mandible that was parallel with the IR?
Multiple Myeloma
What is a malignant neoplasm of plasma cells involving the bone marrow and causing destruction of the bone?
Do not develop until 17 or 18 years of age
What are ethmoid sinuses?
Axiolateral Oblique Projection TMJ
What is the Modified Law Method?
PA Axial (Caldwell)
What is directed horizontal to exit the nasion. The 15 degree relationship between the central ray and OML remains the same for both techniques?
SMV Mandible
What is the coronoid and condyloid process of the rami?
Paget Disease
What is thick, soft bone marked by bowing and fractures?
Often only one sinus develops, but never more than two
What is the sphenoid sinus?
PA Axial Sinuses
What is the Caldwell Method?
Lateral Sinuses
What is directed horizontal, entering the patient's head 1/2 to 1 inch posterior to the outer canthus?
Lateral Sinuses
What is the AP and superoinferior dimensions of the paranasal sinuses, their relationship to surrounding structures, and the thickness of the outer table of the frontal bone. When the lateral projection is to be used for preoperative measurements, it should be made at a 72-inch SID to minimize magnification and distortion?
Sinusitis
What is inflammation of one or more of the paranasal sinuses?
Located within lateral masses of labyrinths
For Patients who cannot be placed in position for the SMV projection
What is the Open-Mouth Waters Method?
Parietoacanthial (Waters)
What is horizontal to the IR and exiting the acanthion?
Parietoacanthial (Waters)
What is the maxillary sinuses, with the petrous ridges lying inferior to the floor of the sinuses. The frontal and ethmoidal air cells are distorted?
Osteomyelitis
What is inflammation of bone due to a pyogenic infection?
What is the frontal sinus?
Central Ray angulation for all Paranasal Sinuses
What is horizontal?