Oh, here's another tip I just thought of.... get yourself some dental glue from CVS or something and just keep it with your bathroom shit. If a crown falls off, you can temporarily glue it in until you get an appt. to see your dentist. (do
not use superglue). I had one canine crown that just would not stick... went in 3 times to have her fix it, on the fourth visit we just had a new one remolded. But when you have dinner plans and a crown falls off... you will be glad for dental glue.
