How long should you wait after getting a root canal before getting fitted for a permanent crown?

2 weeks: 2 weeks is usually an adequate amount of time to wait before starting the permanent crown process. This allows any inflammation to subside, tooth should be pain-free, and gives time to confirm that the root canal is working. However, waiting too long can be catastophic. Depending on how much tooth is left, is you wait too long, the brittle tooth may break so badly it has to be extracted!

1 week: You should have a permanent filling or corwn placed on the tooth within 7 days -- otherwise the temporary filling will dissolve and you could have saliva get into the root canal disturb the seal.

After RCT: There is no specific time to wait after having RCT to have a crown fabricated. Actually I feel more comfortable getting a temporary crown on the tooth asap to prevent the tooth from fracturing & possibly losing it after all the time & money already spent. The impression & permanent crown can then be rescheduled until a time convenient for patient & dentist and when all any sensitivity is gone.

Right after: Finishing the root canal treatment,and making sure it was successful,you can have the tooth prepared for a crown.