When I had my root canal the dental assistant put the temp cap on using permanent cement. I went back and the dentist couldn't get the damn thing off. It took him 20 minutes of prying with no Novocain and the 5 minutes of drilling and grinding just to get the cap off. New cap went on and I was good to go. I'm ready for a new dentist appointment because that assistant was smoking hot. 22, no more than 115 lbs, brunette