A tooth that hurts when pressure is applied, even after a root canal, is a concerning issue that requires professional attention. While root canals are designed to eliminate infection and save the tooth, several reasons can explain persistent pain or discomfort. This comprehensive guide explores potential causes, explains why pressure sensitivity persists, and outlines steps to take for effective relief.
Why Does My Tooth Still Hurt After a Root Canal?
The most common reason a tooth with a root canal hurts with pressure is incomplete treatment or a new infection. During a root canal, the infected pulp (the soft tissue inside the tooth) is removed, and the root canals are cleaned and sealed. However, if bacteria remain, infection can reoccur, leading to pressure sensitivity and pain. Other possibilities include:
- Incomplete cleaning of canals: Microscopic canals might have been missed during the initial procedure, leaving behind infected tissue.
- Fractured tooth: A crack or fracture in the tooth can cause pain even after a root canal, especially with pressure.
- Periapical abscess: This is an infection at the tip of the root, which can develop even after a root canal if the initial infection wasn't completely eliminated.
- Secondary infection: This occurs when bacteria re-enter the tooth through a crack, leak, or compromised filling.
- Irritation of surrounding tissues: The procedure itself can sometimes cause temporary irritation to the gum tissue surrounding the tooth, leading to sensitivity. This usually subsides.
- Adverse reaction to filling materials: While rare, some individuals may have allergic reactions or sensitivities to the materials used in the root canal filling.
What if My Tooth with a Root Canal is Sensitive to Pressure and Cold?
Sensitivity to both pressure and cold often indicates a problem related to the tooth's structure or an ongoing infection. The cold sensitivity might point to exposed dentin (the layer under the enamel) due to a crack or insufficient filling. The pressure sensitivity reinforces the possibility of a persistent infection or an underlying issue like a fracture. It’s crucial to seek professional help immediately if you experience this combination of symptoms.
Can a Root Canal Fail?
Yes, root canals can fail, although it’s relatively uncommon. Failure usually stems from incomplete removal of the infected pulp or reinfection. Factors such as poor oral hygiene, existing fractures, or pre-existing conditions can increase the risk of failure. A failed root canal often results in lingering pain, swelling, and pressure sensitivity.
How is Pressure Sensitivity in a Tooth with a Root Canal Treated?
Treatment depends on the underlying cause. Your dentist will likely perform a thorough examination, potentially including X-rays, to diagnose the problem. Treatment options may include:
- Retreatment: If the root canal was incomplete or a new infection is present, a retreatment will be necessary. This involves revisiting the procedure, thoroughly cleaning the canals again, and resealing them.
- Extraction: In some cases, especially if the tooth is severely damaged or the infection is extensive, extraction might be the most appropriate option.
- Apicoectomy: This surgical procedure involves removing the infected tip of the root.
- Root canal crown: A crown is often placed after a root canal to protect the weakened tooth from further damage and fracture, thereby reducing pressure sensitivity.
- Medication: Your dentist may prescribe antibiotics to combat infection.
Should I See a Dentist if My Tooth with a Root Canal Hurts?
Absolutely. Persistent pain or pressure sensitivity after a root canal necessitates a visit to your dentist. Early diagnosis and treatment can significantly improve the prognosis and prevent more serious complications. Delaying treatment could lead to more extensive damage and possibly the loss of the tooth. Don't hesitate to contact your dentist – their expertise will help determine the best course of action for your specific situation.
Disclaimer: This information is for general knowledge and does not constitute medical advice. Always consult a qualified dental professional for any dental concerns.
