Written by Calvin Bennet · Updated September 2026
A dental crown is a tooth-shaped cap that covers a damaged, decayed, or weakened tooth to restore its strength, shape, and appearance. Crowns are used after root canals, for cracked or heavily decayed teeth, to top a dental implant, and for cosmetic reasons. They come in several materials — from natural-looking all-ceramic and zirconia to durable metal — and typically last 5 to 15 years. Here’s everything you need to know before getting one.
Key takeaways
- A crown is a cap that covers the whole visible tooth — used when a filling isn’t enough.
- Material matters: all-ceramic and zirconia look most natural; metal and zirconia are the strongest.
- The procedure is painless and takes either two visits (lab-made) or one (same-day CAD/CAM).
- Crowns last 5–15 years — and the tooth underneath can still get a cavity, so keep up your hygiene.
What is a dental crown?
A dental crown — sometimes called a “cap” — is a custom-made covering that fits over the entire visible portion of a tooth, down to the gumline. Once cemented in place, it becomes the new outer surface of the tooth, restoring its strength, shape, size, and appearance. Think of it as a helmet for a tooth that’s too damaged or weak to function safely on its own but is still worth saving.
When do you need a dental crown?
Dentists recommend a crown when a tooth needs more protection or rebuilding than a filling can provide. Common reasons include:
- A large cavity or tooth decay too extensive for a filling to hold
- A cracked, broken, or badly worn tooth that needs to be held together
- After a root canal — the treated tooth becomes brittle and usually needs a crown to protect it
- To cover a dental implant as its final restoration
- To anchor a dental bridge that replaces a missing tooth
- Cosmetic reasons — covering a severely discolored or misshapen tooth
Types of dental crowns
Crowns are made from several materials, each with trade-offs between how natural it looks, how strong it is, and what it costs. Here’s how the main options compare:
| Material | Appearance | Strength & wear | Best for | Relative cost |
|---|---|---|---|---|
| All-ceramic / porcelain | Most natural, closely mimics enamel | Good, but can chip under heavy force | Front teeth; metal-free preference | $$–$$$ |
| Zirconia (ceramic) | Very natural, tooth-colored | Very strong; gentle on opposing teeth | Back teeth, grinders, metal-free patients | $$–$$$ |
| Porcelain-fused-to-metal (PFM) | Natural (a dark line can show at the gumline over time) | Strong metal core with a tooth-colored surface | A balance of looks and strength | $$ |
| Metal (gold or alloys) | Metallic gold or silver color | Longest-lasting; rarely chips; needs the least tooth removal | Out-of-sight back molars, heavy grinders | $$–$$$ |
| Resin | Acceptable, less lifelike | Least durable; wears and chips more easily | Temporary or budget crowns | $ |
Which material should you choose?
There’s no universal winner — it comes down to the tooth. For front teeth, all-ceramic or zirconia give the most natural look. For back teeth that take heavy chewing force (or if you grind), zirconia or metal offer the best durability. PFM is a middle ground. And if you prefer to avoid metal, all-ceramic and zirconia are fully metal-free — an option some patients specifically seek out as part of a biological approach to dental care.
The dental crown procedure
Getting a crown is straightforward and done under local anesthesia, so it’s painless. There are two ways it’s made:
Traditional (two-visit) crown
- First visit: the dentist numbs and reshapes the tooth to make room for the crown, then takes an impression (or digital scan) of it and the surrounding teeth.
- A temporary crown is placed to protect the tooth.
- The impression goes to a dental lab, which makes the custom crown — usually in about two to three weeks.
- Second visit: the temporary comes off and the permanent crown is checked, adjusted, and cemented in place.
Same-day (CAD/CAM) crown
Many dentists now offer same-day crowns using CAD/CAM technology (such as CEREC). The dentist takes a digital scan, designs the crown on a computer, and mills it from a ceramic block in-office — so you leave with the permanent crown the same day, with no temporary and no second visit.
How long do dental crowns last?
With good care, most crowns last 5 to 15 years, and many last longer. Longevity depends on the material (metal and zirconia are the most wear-resistant), the tooth’s location and bite forces, and your habits — grinding, chewing ice, or using your teeth as tools all shorten a crown’s life.
What does a dental crown cost?
Cost varies with the material, your dentist, your location, and your insurance. As a rule of thumb, all-ceramic and zirconia crowns cost more than metal or resin, and same-day technology can affect the price. The good news: dental insurance often covers a meaningful share when a crown is medically necessary (versus purely cosmetic). Ask your dentist for a written estimate and check your plan’s coverage.
Caring for your crown
A crown doesn’t need special products — just consistent care:
- Brush and floss normally, paying attention to the gumline where the crown meets the tooth — the natural tooth underneath can still decay.
- Avoid chewing hard objects (ice, pens, hard candy) that can crack a crown.
- If you grind your teeth, ask about a night guard to protect the crown.
- Keep up regular dental visits so your dentist can check the crown and the tooth beneath it.
Crown alternatives
A crown isn’t always the answer. For smaller damage, a filling or an inlay/onlay (a partial-coverage restoration) may be enough. For a purely cosmetic fix on a front tooth, a veneer removes less tooth structure. And if a tooth is beyond saving, extraction and replacement with an implant may be the better long-term option. Your dentist can walk you through which fits your situation.
When to see your dentist
Contact your dentist if a crowned tooth becomes painful or sensitive, if the crown feels loose or high when you bite, or if it chips or comes off. Caught early, most crown problems are simple to fix.
Frequently Asked Questions
How long do dental crowns last?
Most crowns last between 5 and 15 years, and often longer with good care. Longevity depends on the material, where the crown is in your mouth, and habits like grinding or chewing hard objects.
Does getting a crown hurt?
No — the tooth is numbed during the procedure, so you’ll feel pressure but not pain. Some mild sensitivity afterward is normal and usually fades within a few days.
Can a tooth with a crown still get a cavity?
Yes. The crown itself can’t decay, but the natural tooth underneath — especially at the margin where the crown meets the gumline — can. That’s why brushing, flossing, and check-ups still matter with a crown.
Which crown material is best?
There’s no single best — it depends on the tooth. All-ceramic and zirconia look most natural (ideal for front teeth); zirconia and metal are the strongest (good for back teeth and grinders); porcelain-fused-to-metal balances looks and strength. Your dentist will match the material to the location and your priorities.
What’s the difference between a same-day crown and a lab crown?
A traditional crown is made in a lab over about two to three weeks, with a temporary crown in between. A same-day crown uses in-office CAD/CAM technology (like CEREC) to design and mill the crown while you wait — one visit, no temporary.
How much does a dental crown cost?
It varies with the material, your location, and your insurance. All-ceramic and zirconia typically cost more than metal or resin. Dental insurance often covers part of the cost when a crown is medically necessary — ask your dentist for an estimate.
Can I get a metal-free crown?
Yes. All-ceramic and zirconia crowns contain no metal, which appeals to patients who prefer to avoid it — and they look the most natural, too.
Sources
- Cleveland Clinic — Dental Crowns
- PFM vs. all-ceramic crowns: clinical & cost-effectiveness review (NIH)
- Retention & clinical performance of zirconia crowns (NIH/PMC)
Related reading
- Root Canal Treatment: What to Expect
- Dental Veneers: Types, Cost & What to Expect
- Complete Guide to Dental Implants
- Everything You Need to Know About Tooth Decay
- Dental Procedures
Medical disclaimer: this article is for general education and is not a substitute for professional dental advice, diagnosis, or treatment. Talk to your dentist about your specific situation.