How many years can a tooth that has undergone root canal treatment last?

Teeth that have undergone root canal treatment can usually last for many years, and their durability depends on multiple factors. Root canal treatment removes infection from the pulp, fills and seals the pulp chamber, and protects the tooth from further infection. If the treatment is successful and the tooth receives proper maintenance, it may last a lifetime. The following factors can affect the lifespan of a tooth after root canal treatment:

1. Integrity of the tooth: If the tooth was already damaged before treatment, such as having extensive decay, its strength and stability may be compromised, potentially shortening its lifespan.

2. Use of a crown: Teeth with large defects or subjected to heavy biting forces often require a crown for additional protection, which can significantly improve the tooth's durability.

3. Oral hygiene: Good oral hygiene practices, including regular brushing, flossing, and routine dental checkups, can extend the lifespan of the tooth.

4. Chewing habits: Avoiding excessive use of one side of the mouth and evenly distributing chewing forces can help protect teeth that have undergone root canal treatment.

5. Regular follow-ups: Routine dental visits for examinations and cleanings can help detect and address any potential problems at an early stage.

6. General health status: Certain systemic diseases or immune system disorders may affect the health of the tooth.

Teeth treated with root canal therapy can last for 10 years or longer, but there is no absolute time limit.