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How Long Do Teeth Survive After Root Canal?

Research conducted by the Regenstrief Institute and the Indiana University School of Dentistry has found that the average survival time of a tooth after a root canal is 11.1 years. However, this time increases with additional treatments to the root canal.

The study analyzed data on more than 46,000 patients who had root canals at 99 community dental practices across the United States to determine how long a treated tooth lasts after a root canal. The median survival time of a tooth after a root canal was 11.1 years. However, the study found that several factors can extend or shorten how long a treated tooth lasts, such as receiving a filling or a crown after a root canal or receiving no restorative work. The study also revealed wide regional disparities in tooth survival time, with root canals lasting the longest in the Northeast and the shortest in the West. Insurance status also had a significant impact on tooth survival time. The study's authors suggest that this data could inform dental practice and dental insurance coverage to improve treatment and maintain the health of teeth and gums.

According to Dr. Patricia Silva, DDS at By The Lake Dental, root canals often occur when the tooth becomes badly damaged, as a result of poor oral hygiene and untreated cavities. “Best practice is to maintain good oral care at home and regular hygiene visits to prevent root canals. But once it happens, we must treat the root canal properly to try to save the affected natural teeth. Sometimes additional procedures such as fillings and crowns can be used to increase the effectiveness of the treatment. An untreated root canal can develop into an abscess (infection) leading to the removal of the dead tooth, followed by implants,” Dr. Patricia Silva said.

Whether you need a hygiene visit or some treatment, give us a call and book an appointment.

By The Lake Dental offers:

✅ +10 years caring for our community’s oral health needs

✅ A Platinum Invisalign dental office

✅ Direct billing to benefit provider

✅ Cutting-edge technology

✅ Full service family care

✅ Concierge experience

𝗪𝗲´𝗿𝗲 𝗮𝗰𝗰𝗲𝗽𝘁𝗶𝗻𝗴 𝗡𝗘𝗪 𝗣𝗔𝗧𝗜𝗘𝗡𝗧𝗦

Call us today: Ajax 905-428-2111, Highland Creek 416-284-8282.


By The Lake Dental is a full service – ‘one-stop shop’ - dental experience, where you and your family will have your dream smile come true. Whatever your dental needs are, we will deliver the right treatment plan for you. For us every smile does matter and our dental team is able to take care of and transform every single one of them.




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