My Temporary Crown Came Loose. Can I Cement it? Going to See Dentist in Ten Days?

You should ideally try to get in to see your dentist to have the temporary recemented.  It is important to have the temporary on the tooth to protect it until the permanent crown is ready to be cemented by your dentist.  For some reason if you are unable to get in to see your dentist, you can go to the store and buy an over the counter temporary dental cement to recement your temporary crown, but this should only be done if you cannot get in to see your dentist.

Thanks for your question.  Temporary crowns are meant not only to cover the area prepared for the crown itself, but also to help maintain the spacing of your teeth so that the actual crown will fit properly.  A dab of Vaseline underneath should help hold it on there temporarily (avoid chewing on that side of your mouth), but definitely schedule to see your dentist asap nonetheless--take care!

Depending on the situation, you may have a hard time putting this temporary in yourself. If you were my patient, I would want to see you and make sure everything was OK, so call you dentist and see him or her as soon as you can, do not wait 10 days.