HOSA Dental Terminology Practice

What is the primary function of a low-speed handpiece in dental procedures?

1. Removals of old restorations

2. Finishing, polishing, and contouring

3. Preparation of walls in cavity preparations

4. Cutting tooth structure for crowns

The correct answer is: Finishing, polishing, and contouring

The primary function of a low-speed handpiece in dental procedures is indeed finishing, polishing, and contouring. Low-speed handpieces are designed to operate at lower revolutions per minute (RPM) compared to high-speed ones, allowing for more controlled and precise movements. This characteristic makes them ideal for tasks that require finesse, such as polishing dental restorations, smoothing rough edges, and shaping tooth surfaces after restorative procedures. These handpieces commonly use a variety of attachments such as rubber points, cups, and polishers to achieve a smooth, polished finish on both natural teeth and dental restorations. They are particularly effective in the final stages of dental procedures, where a delicate touch is essential for achieving optimal aesthetic results and ensuring patient comfort. In contrast, other options refer to functions typically performed with high-speed handpieces or specialized instruments that require greater power and speed, such as cutting tooth structure or removing old restorations.