National Dental Assisting Examining Board (NDAEB) Practice Exam

What is the area between adjacent tooth surfaces called?

1. Interproximal space

2. Contact point

3. Proximal zone

4. Interdental space

The correct answer is: Interproximal space

The area between adjacent tooth surfaces is referred to as the interproximal space. This space is important in dentistry because it plays a key role in oral hygiene and tooth alignment. The interproximal area can be a site for plaque accumulation, which can lead to cavities and periodontal disease if not properly cleaned. The contact point, on the other hand, refers to the specific area where adjacent teeth physically touch. While this area contributes to the overall relationship between two teeth, it is distinct from the interproximal space, which encompasses the area beyond the point of contact. The term proximal zone is less commonly used in dental terminology, but it typically refers to the surfaces of a tooth that are adjacent to another tooth. It doesn't specifically identify the space between teeth. Interdental space is often used interchangeably with interproximal space; however, the correct term in the context of the question focuses on the area specifically between the tooth surfaces where possible contact occurs, making interproximal space the most precise term. Overall, understanding these terms aids dental professionals in discussing oral health, dental treatments, and patient education regarding the importance of caring for the areas between teeth.