I had two crowns made and when I went in to have them permanently sealed, my dentist suggested I test them out for a couple of weeks to see if they fit well. I was rescheduled for my next appointment in three weeks. During the first week, one of the crowns fell out. I immediately called my dentist and they told me to be careful with the tooth and place it in a safe place before my next appointment. I was not told to come in right away and that is was OK to wait till my next appointment and just to be careful when I eat. Well, when I went in to have them sealed, my dentist told me that my tooth migrated a little and that this was not uncommon because the tooth did not have the crown to hold it in place. So, my dentist told me that I had to have the crowns redone and resent to the lab to build up the porceline. I was charged an extra lab fee of $250.00 and x-ray fees, impression fees etc... Is this normal? I had already paid to have them sealed, I told my dentist that they felt fine why would my dentist tell me to test them out?