Is it normal for a brand new crown (not yet attached to tooth) to break when asked to bite down on it?
Doctor Answers 1
New Crown Breaking
Was the crown a permanent crown or a temporary crown?
Temporary crowns are acrylic, if it is to thin, can crack easily.
If the crown is a permanent crown, cracking of the porcelain is not normal during insertion. However, certain factors could have caused the crown porcelain to crack:
1. Imperfection or impurity in the porcelain which caused a weak area.
2. Inadequate reduction of tooth resulting in a thin area of porcelain and weak spot. If this is the cause your dentist must reprep the tooth to provide adequate room and thickness of porcelain.
These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.