When you leave your initial appointment, you will be given instructions on how to care for your temporary crown. The majority of them stay on just fine, but sometimes they can come off. In that situation, you might be able to pop it back on yourself. If that doesn’t work, or if the tooth underneath is too sensitive with it off, call your dentist’s office. They will schedule you for a quick appointment where, as long as the temporary didn’t break or crack when it came off, they will re-cement it for you.