Which handpiece operates forward and backward and supports a variety of attachments?

The low-speed handpiece is designed to operate in both forward and backward directions, which allows for greater versatility in various dental procedures. This operation mode is particularly beneficial when performing tasks such as polishing, finishing, and certain surgical procedures where control and precision are essential.

Additionally, low-speed handpieces are compatible with a variety of attachments and burs, increasing their functionality for different dental applications. The ability to switch directions helps in ensuring thorough cleaning and preparation of tooth surfaces, which is crucial in achieving optimal patient outcomes.

The high-speed handpiece, while effective for cutting and drilling, typically operates solely in the forward direction and is not suitable for all the tasks to which low-speed attachments can be applied. Similarly, the laboratory handpiece is designed for use outside of the clinical chairside setting, and the laser handpiece serves entirely different purposes and does not operate mechanically in the same sense. Thus, the capacity to accommodate multiple attachments and operate bidirectionally makes the low-speed handpiece uniquely versatile in the dental setting.