HESI General Chairside Assisting Practice Exam

Which classification of movement includes using a slow-speed handpiece?

1. I

2. II

3. III

4. IV

The correct answer is: III

The classification of movement that includes using a slow-speed handpiece corresponds to the third classification. In dental practice, movements are classified based on the range and type of motion required to perform specific tasks. The third classification typically involves the use of hand instruments and equipment that require less precision and are usually employed for procedures such as restorative work, polishing, and handpiece use. Slow-speed handpieces, which are often used for these purposes, allow for greater control and finesse, making them suitable for tasks that don’t require the high speed of a handpiece used in more aggressive preparations. In contrast, the first and second classifications usually involve wider, less controlled movements often related to larger, more comprehensive procedures. The fourth classification, similarly, pertains to movements that are more extensive and require more energy and effort. Each classification establishes a standard for the level of finesse and precision needed, placing the slow-speed handpiece firmly within the third classification.