Radiology Practice Test

What does an occlusal film effectively view?

1. Teeth roots

2. Gum health

3. The tooth crown

4. The dental arch

The correct answer is: The dental arch

An occlusal film is specifically designed to visualize the entire dental arch within the jaw, including the positioning of the teeth, as well as the underlying structures of the jaw that support them. This type of radiograph provides a broad view, allowing practitioners to assess the alignment and occlusion of the teeth, identify potential issues with the jaw relationships, and locate abnormalities that may not be evident in other types of dental images. In contrast, other types of films focus on more localized areas or specific structures. For instance, films aimed at assessing tooth roots primarily highlight the lower portions of the teeth and their supporting structures, while those targeting gum health would concentrate on the periodontal tissues and possible diseases affecting them. Finally, images that focus on the tooth crown emphasize the visible portions of teeth above the gums without providing the extensive view of both arches that an occlusal film offers. Hence, an occlusal film is the most appropriate choice when the goal is to view the entire dental arch holistically.