HOSA Dental Terminology Practice

What are rotary instruments primarily used for in dentistry?

1. Mixing materials

2. Holding dental instruments

3. Assisting in oral examinations

4. Cutting tooth structure

The correct answer is: Cutting tooth structure

Rotary instruments are primarily used in dentistry for cutting tooth structure. These instruments, which include dental handpieces, are equipped with rotating attachments such as drills and burs that are designed to efficiently and precisely remove tooth material. This cutting ability is essential for various dental procedures, including cavity preparation, tooth shaping, and forming cavities for restorations. The design and functionality of rotary instruments allow for a range of speeds and torque, enabling dental professionals to tackle different tasks, from delicate adjustments to removing large amounts of tooth structure. Their use is fundamental to restorative dentistry, making them an indispensable tool in the dental practice.