I've used superglue to hold a damaged crown with no adverse reaction and it held pretty well (for several months!) Be VERY careful to be as sterile as possible so as not to replace the crown over active bacteria. Rinse your mouth and especially the tooth with strong mouthwash or hydrogen peroxide multiple times; do the same with the crown and allow to dry. Keeping the tooth dry, apply the glue SPARINGLY to the inside of the crown - you don't want excess glue to leach out the sides and cover your gums. Push the crown back into place and hold it securely for about a minute. Then place a folded up piece of paper towel or fabric in your mouth to bite down on to hold the crown firmly in place while the glue cures (a few minutes). Do not eat for several hours afterward, to allow the glue to finally cure. This is not a permanent fix but it should hold you for a while, especially if you are careful not to bite down on hard foods with that particular tooth (no grinding up hard candies and no caramels!)
BTW, when I finally did go back to the dentist and hung my head in shame when I told him what I had done, he laughed and said people do that all the time, it's not a problem.
You can use super glue to cement a loose temporary crown. The OTC cement works for some, but not others. However, using super glue can be unhealthy and dangerous. You should leave this job to the professionals. It is better to be safe than sorry. After the holiday, see your Dr. as soon as you can. Good luck!
I would not recommend using Super Glue to cement your loose crown because it might cause harm. Ask your local pharmacist to recommend another product to fix the crown, and contact your dentist when they open.
I would not used super glue to cement your crown because it's not for consumption. They do have kits at the drug store which work fairly well but you have to make sure to follow the directions. You might see if you can find one from a different manufacturer.
I really don't think it would be a good idea to use super glue in your mouth. It probably would work, but super glue is not intented to be used in the mouth and if you accidentally swallow some, it could be dangerous.
Dentists are expensive because they think we need them and have no alternatives. Yes you can superglue your tooth, just dry the hole and tooth, put a dab of glue on a cotton bud and wipe onto hole, press tooth into it, will dry soon. Be careful don't rush & spill it everywhere then you might have problems! It's not a permanent fix, don't bite on bread or apples etc. cut them up. You can also buy dental resin cement for about $40 on Ebay, comes in a little syringe with 2 cylinders that automixes it, got about 5 minutes til it sets. Of course eventually all this will build up on the tooth or hole and you will need to see a real dentist to clean it off, instead of the one in the mirror lol, but hey you saved $200 every fix.