Chapter 42 | MDA | Recall

why is a CBCT image better than a periapical image

A CBCT image is better than a periapical image because it provides 3D information that is vital for the exact placement of implants, the buccal/lingual posiTon of the impacted teeth that are to be removed

What type of imaging is best for soft tissues of the TMJ

Arthrography and CBCT

What types of film might be needed to supllement a panoramic image? Why?

Bitewing films are used to supplement a panoramic film to detect dental caries or periapical lesions. The images on a panoramic film are not as well defined or clear as the images on intraoral film.

What is the name of the device that may be added to a panoramic unit to allow the operator to easily position the film and patient?

Cephalostat

What is a focal trough

Imaginary three-dimensional horse-shoe shaped zone used to focus panoramic radiographs.

What is the purpose of extraoral radiographs

Overall image of the skull and jaws

Why are CBCT images better than a panoramic image

The two-dimensional can't provide any information about the buccal or lingual width or locations, nor can they distinguish between types of soft tissues.

What is the purpose of a grid

What is the name of the device that may be added to a panoramic unit to allow the operator to easily position the film and patient? Cephalostat

When are extraoral radiographs needed

When large areas of the skull or jaw must be examined, or when patients are unable to open their mouths for image receptor placement.