Do Dental Crowns Need to Be Replaced? A Guide on When and Why

Medically reviewed by Dr. Eugene Bernstein, DDS, Practice Leader, General & Cosmetic Dentistry | 25+ Years Experience | Last Updated: May 2026

Direct answer: Yes, most dental crowns need to be replaced eventually. Average lifespan is 10 to 15 years for porcelain and porcelain-fused-to-metal (PFM) crowns, longer (15 to 25+ years) for zirconia and gold. The timing of replacement depends on material, location in the mouth, oral hygiene, grinding habits, and whether the underlying tooth develops decay. Common replacement signs: visible cracks or chips, a dark line at the gum margin, persistent pain or sensitivity, looseness, or a worn-down chewing surface. Industry-standard replacement cost is $1,000 to $3,000 per crown.

Porcelain / PFM: 10 to 15 years average lifespan.
Zirconia / lithium disilicate: 15 to 25+ years.
Gold: 20 to 40+ years (rare today, but extremely durable).
Replacement cost: $1,000 to $3,000 per crown depending on material and underlying tooth condition.

Do All Dental Crowns Need to Be Replaced Eventually?

Yes. Dental crowns are durable but not permanent. Even the best-made crown faces years of chewing force, temperature changes, acidic foods, and gradual cement breakdown. Most patients will need at least one replacement during their lifetime, and patients with crowns placed in their 30s or 40s often see two or three replacements over their lifetime.

That said, “replaced eventually” does not mean “replaced often.” A well-cared-for porcelain crown easily reaches 10 to 15 years, and modern zirconia crowns regularly last 20 years or more. The replacement timeline is set more by the underlying tooth (does decay develop at the crown margin?) and patient habits (grinding, oral hygiene) than by the crown material wearing out.

How Long Do Dental Crowns Last? (By Material)

Crown material	Average lifespan	Best for	Why it lasts that long
Porcelain (all-ceramic)	10 to 15 years	Front teeth, cosmetic-priority cases	Excellent appearance, but more brittle than metal-based options
Porcelain-fused-to-metal (PFM)	10 to 15 years	Back teeth historically; less popular today	Strong substructure, but porcelain layer can chip and metal margin can show as gum recedes
Lithium disilicate (e.max)	15 to 20 years	Front and back teeth, cosmetic + durable	Strong glass-ceramic, esthetic, abrasion-resistant
Zirconia (monolithic)	15 to 25+ years	Back teeth, grinding patients, durability priority	Hardest crown material, most fracture-resistant
Gold	20 to 40+ years	Back teeth, durability priority, less common today	Wears at the same rate as natural tooth enamel
Composite resin	5 to 7 years	Temporary or budget-conscious cases	Wears and stains faster than porcelain or zirconia

For the full lifespan breakdown by material, see how long dental crowns last. Are dental crowns permanent covers the long-term durability question in more detail.

Signs Your Dental Crown Needs to Be Replaced

Visible cracks or chips. Even small chips on a porcelain or PFM crown indicate the crown is at the end of its functional life. The chip can grow with continued chewing.
A dark gray line at the gum margin (PFM only). When the gum recedes around an older PFM crown, the metal substructure becomes visible. This is a cosmetic issue, but it usually signals time for an all-ceramic or zirconia replacement.
Persistent pain, sensitivity, or pressure. Pain that lasts more than a few weeks often means decay or pulpitis under the crown. See why does my crown hurt for the full breakdown of pain causes. Many of these scenarios end in replacement.
Looseness or a feeling that the crown shifts. A loose crown means the cement seal has failed. Sometimes re-cementable, often not. See what to do if your crown falls out for the immediate steps.
Decay at the crown margin. Visible on x-ray or sometimes detected as a dark line where the crown meets the tooth. Recurrent decay almost always requires replacement, often with a small build-up first.
Worn-down chewing surface. Crown surfaces wear over years, especially in patients who grind. A heavily worn crown loses its protective function and exposes the underlying tooth structure.
Gum recession exposing the crown margin. If the underlying tooth is now visible above the crown, replacement with a longer crown or crown lengthening surgery may be needed.
Bad taste or smell at the crown. Often the first sign of bacterial colonization at a failing margin. Catch this early and decay is preventable.
The crown is more than 15 years old, even if it looks fine. Cement bonds slowly degrade. Routine x-ray monitoring is the right move at this point.

If two or more of these signs apply, schedule an exam. Catching issues early often saves the underlying tooth from needing a root canal or extraction.

The question patients ask is “do crowns last forever,” and the honest answer is no. The question they should ask is “what makes my crown last as long as possible.” That answer is: daily flossing around the crown margin, no ice chewing, a nightguard if you grind, and a 6-month cleaning where the hygienist specifically looks at the crown margin under magnification. Patients who do all four routinely get 15 to 20 years out of porcelain crowns and 25+ years out of zirconia.
Dr. Eugene Bernstein, DDS, Practice Leader, Gentle Dental of NJ (NYU College of Dentistry, 25+ years)

How Often Do Crowns Need to Be Replaced?

Average: once per crown lifetime, around year 10 to 15. Most patients have 1 to 2 replacements over their lifetime per crowned tooth.
Earlier than average (5 to 10 years): patients with bruxism (grinding) without a nightguard, smokers, patients with poor home care, or patients with a history of recurrent decay.
Later than average (15 to 20+ years): patients with zirconia or gold crowns, excellent hygiene, regular 6-month cleanings, and no grinding.
Lifetime once and done: rare. Most crowns will eventually need replacement during the patient’s lifetime if the tooth is functional.

The variable that drives the timing most: cement bond integrity at the crown margin. Once the seal breaks down, bacteria infiltrate and decay starts. The longer that goes undetected, the more aggressive the eventual treatment.

Can a Dentist Replace a Crown? What Does the Process Look Like?

Exam and x-ray. Confirm the crown needs replacement and assess the underlying tooth structure.
Crown removal. The old crown is sectioned and removed under local anesthesia. A worn or cracked crown often comes off in pieces; an intact crown may need to be cut to remove cleanly.
Underlying tooth assessment. Decay is removed if present. If the tooth has lost significant structure, a build-up (composite or post-and-core) restores the foundation.
Optional treatment first. If pulpitis or infection is present, a root canal happens before the new crown. If the tooth has fractured below the gum line, crown lengthening surgery or extraction-plus-implant may be the path.
New impression or digital scan. The shape of the prepared tooth is captured for the dental lab.
Temporary crown. A temporary covers the tooth while the permanent crown is fabricated (1 to 2 weeks for traditional, same-day for in-office CEREC machines).
Permanent crown placement. Cemented or screw-retained. Bite check, polish, and final adjustment.

Total elapsed time from old crown removal to new crown placement is typically 1 to 3 weeks for traditional cases, same-day for CEREC cases. If a root canal or build-up is needed, add 1 to 2 visits.

Cost of Crown Replacement

New crown alone (no other work): $1,000 to $3,000. Zirconia and lithium disilicate sit at the top of the range, PFM and porcelain in the middle, gold often higher due to material cost.
New crown plus build-up: $1,500 to $3,500. Common when the underlying tooth has lost significant structure.
New crown plus root canal: $1,700 to $4,500. The root canal itself runs $700 to $1,500.
Crown lengthening plus new crown: $2,000 to $5,000. Adds gum surgery to expose more tooth structure when the existing tooth is too short.
Insurance coverage: Most dental insurance plans cover 50% of crown replacement cost, often with a frequency limit (one replacement per 5 to 7 years per tooth). Check your specific plan; some require pre-authorization.

At Gentle Dental of NJ we discuss exact fees, insurance coverage, and financing options at the consultation. Industry-standard ranges above are typical for the New Jersey market.

How to Make Your New Crown Last Longer

Brush twice a day with a soft-bristle toothbrush and low-RDA toothpaste (under 100 RDA is safest for crowns).
Floss daily, with extra attention at the crown margin. The margin is where decay starts. Threader floss or interdental brushes work best.
Wear a nightguard if you grind. Bruxism is the single biggest preventable cause of premature crown failure. Custom nightguards run $300 to $700 and can extend crown life 5 to 10 years.
Skip ice chewing, popcorn kernels, and very hard nuts on the crowned side. The hardest textures are crown-cracking events.
Avoid sticky candy on the crowned side. Caramel and taffy can pull the crown loose.
Limit teeth-staining habits like heavy coffee, tea, red wine, and tobacco. Surface stain on porcelain glaze can usually be polished off, but heavy long-term staining accelerates the visible aging of the crown.
Schedule cleanings every 6 months. The hygienist looks at the crown margin under magnification and catches early decay or recession before it progresses.
Address pain promptly. Crown discomfort that ignores polite waiting often means the seal is starting to fail. Catching it early often saves the crown and the underlying tooth.

Frequently Asked Questions

Do dental crowns need to be replaced?

Yes, most dental crowns will need replacement at some point. Average lifespan is 10 to 15 years for porcelain and PFM, 15 to 25+ years for zirconia and gold. Replacement timing is set more by oral hygiene, grinding habits, and underlying tooth health than by crown material wearing out.

How long do dental crowns last before needing replacement?

Porcelain and porcelain-fused-to-metal (PFM): 10 to 15 years. Lithium disilicate (e.max): 15 to 20 years. Zirconia (monolithic): 15 to 25+ years. Gold: 20 to 40+ years. Composite resin: 5 to 7 years. Patients with excellent home care and no grinding routinely exceed these averages.

Can a dental crown be replaced?

Yes. The dentist removes the old crown under local anesthesia, assesses the underlying tooth, removes any decay, places a build-up if needed, takes a new impression or digital scan, and places a temporary crown while the permanent is made. Total elapsed time is typically 1 to 3 weeks (same-day with CEREC machines).

How often do crowns need to be replaced?

Once per crown lifetime on average, around year 10 to 15. Patients with bruxism, smoking, or poor home care may need replacement at year 5 to 10. Patients with zirconia or gold crowns and excellent hygiene often go 20+ years between replacements.

What are the signs my crown needs to be replaced?

Visible cracks or chips, a dark gray line at the gum margin (PFM), persistent pain or sensitivity, looseness, decay at the crown margin (often visible on x-ray), worn-down chewing surface, gum recession exposing the underlying tooth, bad taste or smell at the crown, or a crown more than 15 years old that hasn’t been x-rayed recently.

How much does it cost to replace a dental crown?

Industry-standard ranges: $1,000 to $3,000 for a new crown alone, $1,500 to $3,500 with a build-up, $1,700 to $4,500 if a root canal is needed first, $2,000 to $5,000 if crown lengthening surgery is involved. Most dental insurance plans cover 50% of crown replacement, often with a frequency limit (typically one replacement per 5 to 7 years per tooth).

Why do dental crowns fail or need replacement?

The leading causes of crown failure are recurrent decay at the crown margin (cement seal breaks down, bacteria infiltrate, new cavity forms), bruxism (grinding stresses the crown surface and the bond), porcelain fracture or chipping, gum recession exposing the metal margin or underlying tooth, and rarely, an underlying tooth fracture that requires extraction.

Can the same crown be re-used after removal?

Almost never. The act of removing a crown usually damages the cement on the inside surface and the crown itself. If the original crown comes off intact and is undamaged, it can occasionally be re-cemented if the underlying tooth is healthy. In most cases, a new crown is the right call. See what to do if your crown falls out for the steps when this happens unexpectedly.

For other crown questions, see why does my crown hurt, how to whiten or polish a discolored crown, and are dental crowns permanent.

Visit Gentle Dental of NJ in Newark, NJ

290 Ferry St B2, Newark, NJ 07105 (Ironbound)
(973) 817-8888 | Schedule a Crown Evaluation
Serving Newark, Ironbound, East Ferry, Belleville, Kearny, Harrison, North Ironbound, and Downtown Newark. Crown evaluation, replacement, and same-day re-cement available with Dr. Eugene Bernstein.

Disclaimer

This information is provided for educational purposes and is not a substitute for professional dental advice, diagnosis, or treatment. Please schedule a consultation with our team to discuss your individual needs.