I remember getting it back a few years ago OTC at a local pharmacy when I lost a filling and had EXTREME pain. I want to say DentTemp or something like that. It's sticky and kind of cement-like and may hold the cap onto the tooth. It had a little bit of that clove oil stuff mixed in to help numb any pain as well. Huge lifesaver since my dentist couldn't fit me in for what seemed like an eternity. Good luck!