Endodontic stopper

An endodontic stopper is a small, flat ring made of elastic material such as silicone that is placed on an endodontic instrument like a file to serve as a depth gauge during root canal procedures. It helps the clinician determine how far the instrument has penetrated into the root canal by providing a visual and tactile reference point at a set distance from the tip.

Endodontic stoppers are designed for single-use only and are supplied sterile or non-sterile depending on the intended use. They are not medicated and do not contain any active pharmaceutical ingredients. As single-use devices, they are typically regulated based on their intended use and materials, with classification varying by jurisdiction according to local medical device regulations.