permanent crown

[igorot1]

I had a permanent crown on my third lower molar without any root canal the tooth was cracked but at that time my dentist said no need for root canal. Almost 2 years later its suddenly sensitive and pressure pain when eating. I went to the dentist and I was told nothing was wrong with the tooth. Is it possible my bite if off since I have a bad tmj. Please help

[scottma]

If the crowned third molar can occlude with opposing tooth, the crowned tooth may get secondary caries due to cement washout. Seeing a dentist to evaluate the offending tooth is advised.

[igorot1]

Yes i went to see my dentist twice and had xrayed twice and was told nothing is wrong with the tooth. I was told that if keeps bothering for 2 or more weeks then he might remove the crown and check the tooth. The tooh is sensitive with cold and hot and pressure pain when eating hard food. The pain goes all the way to the gums but its a pressure pain. It feel like someone is pressing the tooth forcefully. I also have a bad headache after eating. my jaws hurts. I have a bad tmj.

[lynn117]

an xray does not penetrate a crown so something could be wrong. heat sensitivity indicates possible infection.