Can a Tooth Get Infected after Root Canal?

Although uncommon, infections can occur in teeth after root canal therapy. This may happen due to new physical trauma, tooth decay, or errors in the original root canal treatment. Here is more about causes of post-root canal infection and how to minimize risk.

Root Canal Errors That Can Cause Re-Infection

Failure to remove all parts of an infection or seal out bacteria during a root canal can allow re-infection to result later. If all infected tissues are not removed, due to either practitioner error or unusually complex tooth anatomy, the infection is not eliminated in the first place. Alternatively, infection may later develop if the crown is placed late or if the filling allows saliva to seep into the tooth.

How to Reduce Risk of Infection After Root Canal

Damaged or decayed teeth can lead to new infections in treated teeth, so steps that reduce these risks are beneficial. Avoid chewing hard foods, use good oral hygiene, limit intake of sugary foods, and visit our endodontist regularly for check-ups.

A root canal infection can happen under certain conditions, making retreatment essential for saving the tooth. You can learn more about avoiding infections after root canal by scheduling a consultation with our endodontist.