National Dental Assisting Examining Board (NDAEB) Practice Exam

Which of the following is NOT an indication for the use of a topical anesthetic?

1. Prior to deep cleaning

2. Prior to dental radiographs

3. Prior to suture removal

4. To alleviate ulcers

The correct answer is: Prior to dental radiographs

Topical anesthetics are commonly used in various dental procedures to minimize discomfort and anxiety for patients. They are indicated in situations where localized pain relief is beneficial, helping to make procedures more tolerable. When considering the use of a topical anesthetic, one can see that deep cleaning, suture removal, and alleviating ulcers are all situations where discomfort is likely, and numbing the area can significantly improve the patient's experience. In the case of deep cleaning and suture removal, patients might experience pain or anxiety, thus making the application of a topical anesthetic appropriate. The use of topical anesthetics for ulcers can also be beneficial in providing symptomatic relief from pain. On the other hand, the use of topical anesthetics prior to dental radiographs is not typically indicated. Taking radiographs generally does not involve procedures that would cause discomfort requiring anesthetic intervention. The process of positioning for x-rays and the actual exposure are usually painless, therefore there is no real need for anesthetic treatment in this context. Understanding the specific applications of topical anesthetics in dental practice can help in determining when their use is appropriate and when it is not needed based on the nature of the procedure being performed.