When patients agree to a root canal, they're making an investment in saving their natural tooth — so it's only natural to ask: how long will it actually last? The encouraging answer is that a well-treated, properly protected tooth can last the rest of your life.
The Numbers Are on Your Side
Root canal therapy has a success rate above 95%, making it one of the most predictable procedures in all of dentistry. Studies following treated teeth over many years consistently show that the large majority function well for a decade or more, and a great many last a lifetime.
The Single Biggest Factor: The Crown
If there's one thing that determines how long your root canal lasts, it's whether the tooth gets a proper crown afterward (for back teeth especially). A root-canal-treated tooth becomes more brittle, and without a crown it can fracture under normal chewing. I've watched patients lose teeth they spent good money saving, simply because they delayed the crown. Don't skip it.
What Causes a Root Canal to Fail
Failures are uncommon, but when they happen it's usually due to one of these: a delayed or missing crown, a new cavity forming at the base of the tooth, a crack developing over time, or a canal with unusual anatomy that harboured hidden bacteria. Good home care and regular checkups catch most of these early.
If It Ever Does Fail
A treated tooth that develops trouble years later isn't necessarily lost. Often we can perform a retreatment — reopening the tooth, re-cleaning the canals, and resealing it. This saves many teeth that would otherwise need extraction.
How to Get Decades Out of Your Tooth
Protect your investment: get the crown promptly, brush and floss daily, don't use the tooth to bite ice or open packages, wear a nightguard if you grind, and keep your six-month cleanings so we can monitor it. Do that, and there's every reason to expect your treated tooth to serve you for the long haul. Questions about a tooth you've had treated? Call us at (709) 400-7474.
Need Root Canal Therapy?
Dr. Muller and the team are here to help. Book an appointment at our St. John's office.
