Usually when root canal is performed, the pulp is removed along with the nerve. Hence, the tooth in effect is dead and should not be sensitive to heat. However, when the root canal is an extensive procedure involving a lot of canals, there is a possibility that one canal is not cleaned by the doctor. In such a case, a person may have heat sensitivity after root canal. However, this rarely happens.
After a root canal procedure, it is normal for a person to feel heat and cold sensitivity for a few days. In some people, it may take up to a few weeks. But later on this subsides. However, if heat sensitivity after root canal occurs for several months after the procedure, the person should consult a dentist immediately. This could be for two reasons. Either the root canal has failed and therefore, has to be redone, or there is a problem with an adjacent tooth. Usually, it has been observed that when a person experiences heat sensitivity after root canal, the problem invariably lies with an adjacent tooth. Hence, the dentist will check the root canal as well as adjoining teeth to rule out the possibility of a root canal failure or caries in a different tooth.
If you are suffering from heat sensitivity after root canal, make sure to inform the dentist. The dentist will check your tooth and recommend that you do not put the crown until the sensitivity disappears. It could be due to an infection in the surrounding tissue which will first have to be treated. If the heat sensitivity is caused due to a different tooth, the dentist will first clean that tooth and then fill it with an amalgam. However, if the heat sensitivity after root canal is due to a failed procedure, you will first have to have an X-ray and then get it treated. If the infection has spread to the root, the dentist may opt for an apicoectomy. In this procedure, the root canal treatment is done from the very tip of the root.
Nonetheless, if your suffering from heat sensitivity, make sure you visit the dentist as soon as possible. The problem could be with the recently done root canal or with another tooth. Since you are not a professional, you will not be able to decipher the exact reason for the sensitivity. But the dentist will be, and will also be able to inform you about the course of action that is required.
More Articles :
- Cost Of Root Canals
- Difference Between A Root Canal And A Crown
- Heat Sensitivity After Root Canal
- How Long Does Pain Last After A Root Canal ?
- What Happens When A Root Canal Molar Splits ?
- What To Do After A Root Canal ?
- When Is A Root Canal Necessary ?
- Why Do Root Canals Take So Long ?

https://www.medhelp.org/posts/Dental-Health/Pain-w--heat-sensitive-crown/show/421782
Richard M Voget: Frequently Asked Questions
https://www.drvoget.com/faqs.htm
Ask Dr. Spindel: Can a tooth still have feeling after a root canal is completed?
https://lspindelnycdds.blogspot.com/2011/01/can-tooth-still-have-feeling-after-root.html
WebMD: Complications Of A Root Canal
https://www.webmd.com/oral-health/dental-root-canals?page=3#complications