HOSA Dental Terminology Test 2025 – 400 Free Practice Questions to Pass the Exam

The term gnarled enamel accurately describes a tooth that exhibits a twisted or abraded structure during function. This condition occurs when the enamel, which is the hard outer layer of a tooth, becomes irregular or twisted as a result of wear and tear from regular use or certain dental conditions. Gnarled enamel can affect the tooth's aesthetics and function, as it may lead to increased susceptibility to dental issues.

In contrast, cuspid refers specifically to a type of tooth that is pointed and used for tearing food, which doesn’t convey anything about the tooth’s condition being twisted or abraded. The term gap usually refers to a space between teeth rather than a functional or structural change in the tooth itself. Lastly, crepitus describes a crackling or popping sound often related to joint movement, not pertaining to the condition of a tooth. Thus, gnarled enamel is the most fitting term to describe the altered state of a tooth that is twisted or abraded during function.