<s>[INST] i just had a root canal yesterday and the temporary crown came of last night i called the dentist she said to come in monday to have it re-cemented. today it fell out when rinsing my mouth and the cap went down the drain. theres no one in the office and wont be untill monday [/INST] Thanks for your query, I have gone through your query. Nothing to be panic, do not get scared, nothing will happen. The temporary crown can be replaced with either permanent or temporary crown again till you get the permanent crown. But you need to take certain precautions like, you should not bite on hard things from that tooth, since the tooth will be brittle, there are chances of that tooth getting fractured. So til you consult your dentist be careful. I hope my answer will help you, take care. </s>