yes, if it fit correctly, any dentist should be able to cement it on. they will drill out the old cement and put new on. now, the question is can you find an honest dentist. there are many out there, that to make a buck, will tell you it won't work, that a whole new crown needs to be made, or some other expensive thing. so, i wish you luck. there is a reason it fell off, but i am assuming it was the cement that failed, that the fit was correct and that the tooth has enough structure to hold it securely without it coming off easily.