National Dental Assisting Examining Board (NDAEB) Practice Exam

Which condition can be treated using topical anesthetic?

1. Tooth sensitivity

2. Ulcers

3. Cavities

4. Periodontal disease

The correct answer is: Ulcers

Topical anesthetics are often used to provide temporary relief from pain associated with oral mucosal conditions, such as ulcers. These medications create a numbing effect on the surface of the affected area, making it easier for patients to tolerate discomfort. Ulcers in the mouth can be quite painful, and applying a topical anesthetic can help reduce that pain, allowing for improved eating, drinking, and speaking for the individual. While tooth sensitivity is a condition that involves discomfort originating from the tooth structure itself, it typically requires a different approach, such as desensitizing agents. Cavities, which involve decay within the tooth, cannot be effectively treated with topical anesthetics as they require restorative procedures. Periodontal disease, affecting the supporting structures of the teeth, would also necessitate more comprehensive treatments rather than just topical anesthetics. Therefore, among the choices presented, ulcers are the condition best suited for treatment with a topical anesthetic due to the direct pain relief these agents provide on the mucosal surface.