A well-done root canal can protect your tooth for decades. Here's what determines how long yours lasts — and how to get the most out of it.
What Determines the Lifespan?
Several factors play a role: the location of the tooth (front teeth tend to have better survival rates), the quality of the original procedure, whether any reinfection occurs, your oral hygiene habits, underlying health conditions like diabetes, and whether you smoke.
How to Make Your Root Canal Last
Get the recommended crown promptly — this is the single most important step for back teeth. Then brush twice a day with fluoride toothpaste, floss regularly, avoid hard candy, nuts, and ice, keep up with checkups, and don't use your teeth as tools. With proper care, results can last around 20 years or more.
What Can Cause a Root Canal to Fail?
Occasionally, hidden canals that weren't treated initially, bacteria entering through a crack or faulty filling, or a severe crack in the tooth can cause a root canal to fail. When that happens, retreatment or a minor procedure called an apicoectomy can often still save the tooth.
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