How Long Does a Dental Crown Last—and When to Replace It?

If you’ve had a dental crown placed, you’ve made a smart investment in protecting your smile. But like most things in life, crowns don’t last forever. So how long can you expect yours to hold up, and what are the signs that it’s time for a new one?

The Average Lifespan of a Dental Crown

Most dental crowns last 10 to 15 years, though many patients get 20+ years out of theirs with proper care. The lifespan depends largely on:

• Material — Porcelain crowns look natural but are more prone to chipping. Metal and porcelain-fused-to-metal crowns tend to be more durable. Zirconia crowns offer the best of both worlds — strength and aesthetics.
• Location — Crowns on back molars endure more chewing force and typically experience more wear.
• Oral hygiene habits — Regular brushing, flossing around the crown, and routine cleanings keep the underlying tooth healthy.
• Grinding or clenching — Grinding is one of the fastest ways to shorten a crown’s life.

Signs It May Be Time to Replace Your Dental Crown

It’s not always easy to tell when your crown is worn out. Watch for these warning signs:

• Pain or sensitivity — Discomfort when biting or temperature sensitivity can signal a cracked crown, a failing seal, or decay forming at the margin.
• Visible cracks or chips — Even small fractures can let bacteria sneak in.
• The crown feels loose or shifts — The cement underneath may have washed out over time.
• Dark lines at the gumline — This is common with older porcelain-fused-to-metal crowns and may indicate the metal base is showing or receding gums are exposing the margin.
• It’s been more than 15 years — Even if it looks fine, older crowns are worth a closer look at your next checkup.

What Happens If You Wait Too Long?

Delaying a crown replacement isn’t just a cosmetic concern. A compromised crown can lead to decay on the underlying tooth, gum problems, or, in worst-case scenarios, tooth loss. Catching issues early almost always means a simpler and less expensive fix.

The Bottom Line

Routine dental visits are the best way to stay ahead of crown problems. At Barrhaven Dental Studio, we examine your existing dental work at every checkup, not just your natural teeth. Digital dental X-rays help us spot issues before they become painful (and costly) surprises.

Think your crown might be due for an evaluation? Book an appointment today — we’re here to help your smile last a lifetime.