T.F.
Health and safety are 2 things which should not be compromised.
Why on earth have you not already taken her to a dentist? You "don't when you will be able to get her to a dentist"? Why you would not be able to get her to a dentist. If she fell and broke her arm you would take her to the Dr, right? This is just as important mom.
If you don't get this resolved quickly, she could develop an infection which will end up costing woefully more money than a dental visit to clean the tooth and replace the crown.
If you can't or won't get her to the Dr., then get someone who will to take her. This is considered an immediate situation and most dental places will work with you because they know the importance of getting that crown back on asap.
Get her to a dentist today.... even if it is a dentist in a chain dental clinic... you daughter needs to see the dentist, now.