Is it possible for you to use super glue too glue cap back on tooth?

Super glue: This would be ill-advised and extremely dangerous. Return to your dentist and have the tooth and crown checked to find out why it came off. Crowns are not supposed to fall off. There may be a problem with the tooth and/or the crown.

Not advisable: Super glue or crazy glue, is not meant for intraoral use. Firstly, it would never seal the edges of the crown correctly, and secondly, you might need a new crown due to decay. In both instances you run the risk of more expensive treatment or loss of the tooth. Are you trying to save the fee of having a dentist examine the tooth and cement it correctly? Not a good idea.. Will cost more in the end.

Not a DIY project: Not the correct material for this particular job. Dentist must see you to determine why cap came off (decay, seal leakage, traumatic occlusion, etc) and remedy the problem. The cap can then be resealed with the appropriate non-toxic tissue friendly materials, or the cap can be remade if necessary. It's false economy to try to do this yourself, like trying to make your own cast for broken arm.