It seems like you might be asking about a substance used or referenced by dentists. If you clarify your question, I can provide more specific information. However, here are a few substances commonly used by dentists:
- Dental Cement: Used to bond crowns, bridges, and other dental prosthetics.
- Composite Resin: A tooth-colored material used for fillings, bonding, and other restorative procedures.
- Amalgam: A durable filling material made from a mixture of metals including mercury, silver, tin, and copper.
- Local Anesthetics: Substances like lidocaine are used to numb areas during dental procedures.
- Fluoride: Often applied to teeth to help prevent decay.
- Varnish: A fluoride varnish is often used for cavity prevention, especially in children.
If you're looking for specific information or have a different topic in mind, please let me know!