Chapter 27: Three-Dimensional Digital Imaging Flashcards
Types, Principles, Equipment and Guidelines Three-Dimensional Imaging
Define the term: posterior
towards the back
List the disadvantages of three-dimensional digital imaging.
- capturing patient movement or artifacts
- small field of view size
- equipment cost
- common lack of training
Define the term: extraoral imaging
an inspection of large areas of the skull or jaws that requires the use of extraoral imaging receptors
Define the term: trauma
injury produced by an external force
Define the term: mandible
the lower jaw
Define the term: multiplanar reconstruction (MPR)
the reconstruction of raw data into images when imported into viewing software to create three anatomic planes of the body
Define the term: coronal plane
- a vertical plane that divides the body into anterior and posterior sides
- runs perpendicular to the ground
Define the term: horizontal
a side-to-side plane
Define the term: cone beam computed tomography (CBCT)
computer-assisted digital imaging in dentistry that uses a cone-shaped x-ray beam to acquire information and present it in three dimensions
Define the term: extraoral
outside the mouth
Define the term: extraoral image
- an image that results when an image receptor is placed outside the mouth and is exposed to x-rays
- used to examine large areas of the skull or jaws
List the advantages of three-dimensional digital imaging.
- lower radiation dose in comparison to medical CT scans
- brief scanning time
- anatomically accurate images
- easily saved and transported to other medical professionals
Define the term: vertical
an up-and-down plane
Define the term: extraoral receptor
an image receptor is placed outside the mouth to examine large areas of the skull or jaws
Define the term: temporomandibular joint (TMJ)
the jaw joint, including the temporal bone, the mandible, and the articular disc between the two bones
