Which term describes film designed for use in cassettes?

• A. Cassette
• B. Cephalometric Film
• C. Extraoral Film
• D. Digital Image

Answer: (C)

In dental radiography, films are grouped by where they’re used: inside the mouth (intraoral) or outside the mouth (extraoral). Extraoral film is specifically designed to be used in a cassette, which contains intensifying screens to help produce the image with lower radiation dose. When exposed, the X-rays interact with the screens and light exposure transfers to the film inside the cassette, creating the radiograph. So the term that describes film designed for use in cassettes is extraoral film.

A cephalometric film is a type of extraoral film used for cephalometric radiographs, but the general category described by the prompt is extraoral film. A cassette is just the protective holder, and a digital image isn’t film at all.