Which dental dam frame is situated on the outside of the dam material?

The metal frame, commonly known as Young's frame, is designed to be positioned on the outside of the dental dam material. This frame serves several important functions during dental procedures. It provides tension to the dental dam, ensuring that it stays firmly in place and creates an effective barrier that isolates the treatment area. The metal frame's design, usually featuring a series of rounded edges, allows for easy placement and stability while also facilitating access for the dental practitioner.

In contrast, other options, such as the plastic frame, plastic ring, and stainless frame, may have different configurations or uses that do not position them outside the dam material. For instance, a plastic ring is typically used in conjunction with the frame but is not itself designed to be on the outer side. Understanding the proper usage of these tools is essential for maintaining an effective and safe working environment in dental procedures.