National Dental Assisting Examining Board (NDAEB) Practice Exam

What is one indication for using a topical anesthetic in dental procedures?

1. For patients with a high pain threshold

2. Prior to rubber dam clamp placement

3. Prior to patient discharge

4. During routine examinations

The correct answer is: Prior to rubber dam clamp placement

Using a topical anesthetic prior to rubber dam clamp placement is appropriate because it helps to minimize discomfort when the clamps are applied to the teeth. This procedure can sometimes cause anxiety or pain for patients, particularly if they have sensitive gums or teeth. The topical anesthetic provides a localized numbing effect that makes this critical step in the dental procedure more comfortable for the patient, thereby improving their overall experience in the dental chair. Other options do not align as relevant indications for topical anesthetic use in this context. For example, employing topical anesthetics for patients with high pain thresholds lacks a specific clinical indication since these patients may not need additional pain control. Additionally, using a topical anesthetic right before patient discharge or during routine examinations may not be necessary, as these situations typically do not involve procedures that would cause notable discomfort requiring anesthesia.