Dental Assistant Practice Exam

What is a mandrel used for in dental procedures?

1. Holding dental crowns

2. Attaching polishing discs

3. Supporting orthodontic appliances

4. Connecting suction devices

The correct answer is: Attaching polishing discs

A mandrel is a tool commonly used in dental procedures to attach polishing discs, abrasive wheels, or other rotary instruments. It serves as a support or shaft that enables these attachments to rotate efficiently when used with a dental handpiece. This is especially important when performing tasks such as polishing teeth, smoothing restorative materials, or shaping occlusal surfaces. In the context of dental work, polishing discs attached to a mandrel are crucial for achieving a smooth finish on dental restorations and for enhancing the aesthetic appearance of the teeth. The effectiveness and ease of use of the mandrel in securely holding these attachments make it an essential instrument in various dental procedures. The other listed options do not accurately reflect the primary function of a mandrel, as it is not designed to hold dental crowns, support orthodontic appliances, or connect suction devices. These functions are served by different specialized tools and equipment in the dental practice.