HOSA Dental Terminology Practice

What is the maximum speed at which a low-speed handpiece operates?

1. 10,000 rpm

2. 15,000 rpm

3. 20,000 rpm

4. 25,000 rpm

The correct answer is: 25,000 rpm

The maximum speed at which a low-speed handpiece operates is 25,000 revolutions per minute (rpm). Low-speed handpieces are designed for specific dental procedures, such as cavity preparation, polishing, and surgical work. They typically operate at lower speeds to allow for better control and precision during these procedures. In contrast, high-speed handpieces operate at much higher speeds, often exceeding 100,000 rpm, allowing for quick cutting and drilling of hard dental tissues. The ability to operate at a maximum of 25,000 rpm makes low-speed handpieces effective for tasks that require delicacy and careful maneuvering, ensuring both effectiveness and safety for the patient. Understanding these distinctions is vital for choosing the appropriate handpiece based on the required dental procedure.