What is a dental crown?
A dental crown is a cap shaped like a tooth. It fits over the whole visible part of a tooth. Cleveland Clinic describes it as a restoration for a decayed, broken, weak or worn-down tooth. The dentist removes a small amount of enamel first, so the crown fits like a snug hat.
Most people have heard the older word “cap.” There is no difference. “Cap” and “crown” name the same restoration. In a dental office you will hear “crown.”
A crown is one of several ways to repair a tooth. A filling repairs part of a tooth. An onlay covers part of the chewing surface. A crown covers all of it. The guide to crowns, fillings and onlays shows how dentists choose between them.
When does a tooth need a crown?
A tooth needs a crown when there is too little healthy tooth left for a filling to hold. The ADA’s MouthHealthy site says a crown can strengthen a tooth with a large filling when there is not enough tooth remaining to hold the filling.
Cleveland Clinic lists these reasons to place a crown:
- To strengthen a weak tooth.
- To protect and support a cracked tooth.
- To restore a worn-down or broken tooth.
- To hold a dental bridge in place.
- To cover a badly stained or discolored tooth.
- To cover a tooth that has had a root canal.
- To cover a dental implant.
A crown also sits on top of an implant post. You can read about that in our dental implants guide.
Only an exam can tell you whether your tooth needs one. Your dentist will look at the tooth, take X-rays and talk with you about the options. If a crown is not the right fit, a filling, onlay or other repair may be.
What are crowns made of, and which material fits?
Crowns come in metal, porcelain fused to metal, ceramic and resin. Each has trade-offs in strength, look and wear on the teeth that bite against it. Cleveland Clinic describes the main types this way:
| Crown type | What Cleveland Clinic says | Where it is often used |
|---|---|---|
| Metal (gold, palladium, nickel, chromium) | Rarely chips or breaks and lasts the longest in terms of wear. The metal color is the main drawback. | Out-of-sight molars |
| Porcelain fused to metal | Combines metal strength with a tooth-like look. The porcelain may chip over time and can wear opposing teeth. | Front or back teeth |
| Pressed ceramic | Ceramic core with layers of porcelain. Layers can chip over time. | Front or back teeth |
| All-ceramic or porcelain (including zirconia) | Looks most like natural enamel. A good choice for people with metal allergies. Zirconia is very durable and gentle on opposing teeth. | Front or back teeth |
| All-resin | Less costly than other types but fragile. Cleveland Clinic gives three to five years on average. Often used for temporary crowns. | Short-term use |
Your dentist will help you pick. The choice depends on which tooth it is, how hard you bite, whether you grind your teeth, and how much the color matters. A front tooth may call for porcelain. A back tooth may call for a stronger material. Town Center Dental describes its own approach on the porcelain crown page.
How long do dental crowns last?
Cleveland Clinic gives an average lifespan of five to 15 years for a dental crown. The same page says that a crown can last longer with proper care and maintenance, and that a cracked or damaged crown may need to be replaced sooner. Nobody can promise a number for one tooth.
A research review gives another view. A 2022 systematic review of studies on back teeth, published in Head & Face Medicine, reported mean five-year survival of 95.38 percent for full crowns. “Survival” means the restoration was still in place and working at the end of the study period. Five years is short compared with a crown’s whole life, so treat it as a floor, not a forecast.
What affects how long a crown lasts?
- Material. Resin wears fastest. Metal and zirconia hold up well to biting force.
- Habits. Cleveland Clinic says ice, hard nuts, popcorn kernels and sticky candy can damage or dislodge a crown. Grinding and clenching add stress.
- Cleaning. Plaque at the edge of a crown can lead to new decay in the tooth underneath.
- Fit. A crown that fits poorly can trap bacteria.
If you grind your teeth, ask your dentist about a custom mouth guard. Cleveland Clinic recommends this for people who clench or grind.
Does getting a crown hurt?
Your dentist numbs the tooth with local anesthetic, so you should not feel pain during the work. Cleveland Clinic says that if you do feel pain, you should tell the dentist, who can give more anesthesia. The numbness fades within hours.
Afterward, some soreness is normal. Cleveland Clinic says:
- Most people can return to work, school and routine activities right away.
- Sensitivity to heat and cold is normal for a couple of weeks.
- The gums around the tooth may be sore for a few days.
- Over-the-counter pain relievers can ease discomfort.
The same page says a crown should not be painful in a way that keeps you up at night. If it is, call your dentist. If biting feels wrong, ask your dentist to check the fit.
What happens at each visit?
Most crowns take two visits. Cleveland Clinic describes the usual steps:
- Prepare the tooth. The dentist numbs the area and removes some enamel to make room. If part of the tooth is missing, the dentist may build it up with filling material first.
- Take impressions. These can be putty molds or digital scans from a handheld scanner. The impressions go to a dental lab, or into a design system if the office makes crowns on site.
- Place a temporary crown. A lab usually needs two to three weeks, sometimes longer. A temporary crown, made of resin or acrylic, covers the tooth meanwhile.
- Fit the final crown. At visit two, the dentist removes the temporary, checks the shape, color and fit, and bonds the new crown with dental cement.
Some offices use computer-aided design and milling to make a ceramic crown in one visit. Cleveland Clinic notes this is not right for everyone. Town Center Dental’s technology page lists the tools the office uses. Ask which steps apply to your tooth.
How do I care for a crown?
Care for a crown the way you care for your natural teeth, with extra attention at the gumline. Cleveland Clinic suggests that you:
- Brush at least twice a day with fluoride toothpaste and a soft brush.
- Floss once a day.
- Avoid very hard, crunchy or chewy foods.
- Ask about a custom mouth guard if you grind or clench.
- Keep up regular cleanings and exams.
Cleveland Clinic notes that a crown that does not fit well can trap bacteria and lead to decay. Regular checkups let the dentist look at the edges and the bite.
What are the downsides of a crown?
A crown is a real procedure with real trade-offs. Cleveland Clinic lists these disadvantages:
- It needs some natural enamel removed.
- It may cause tooth sensitivity, especially in the first few weeks.
- It can break or fracture over time.
- It can trap bacteria and lead to decay if it does not fit well.
- It may cause an allergic reaction in some people. Cleveland Clinic calls this rare.
- It may be expensive.
The same page lists the benefits. A crown can prolong the life of a natural tooth, treat worn, broken or decayed teeth, protect against further wear, improve chewing and improve appearance. Your dentist will talk with you about whether those benefits outweigh the costs for your tooth.
What are the alternatives to a crown?
Cleveland Clinic names three common alternatives, depending on your goals:
| Option | When it may fit |
|---|---|
| Inlay or onlay | The tooth is too damaged for a filling but too healthy to need a crown. |
| Veneer | You have cosmetic concerns but little decay or damage. A veneer is a thin ceramic shell on the front of a tooth. |
| Extraction and implant | The tooth is so badly decayed or broken that a crown may not give a predictable result. |
The first row is the most common choice. The crown, filling or onlay guide explains how dentists weigh it.
What should I ask before I get a crown?
A short list of questions helps you understand the plan before you agree to it:
- What is wrong with the tooth, and can you show me on the X-ray?
- Could a smaller repair work, such as a filling or onlay?
- Which material do you suggest for this tooth, and why?
- How many visits will it take?
- Will I wear a temporary crown, and for how long?
- What should I expect afterward, and when should I call?
- What will my estimate be, and what might my insurance cover?
- What happens if I wait?
Good answers are specific to your tooth. If the answers feel vague, ask again or ask for a second look.
What does a crown cost?
The cost depends on the tooth, the material, the number of visits and your insurance. Town Center Dental does not publish prices. The office gives each patient their own estimate after an exam, so you know the number before you decide. The insurance and financing page explains how the office works with insurance plans.
When should I call my dentist about a crown?
Call your dentist if a crown feels loose, if it cracks or chips, if a sharp edge bothers your tongue or gums, or if you notice a bad taste or bad breath. Cleveland Clinic lists these signs. Do not wait for a loose crown to fall out.
If a crown comes off, keep it. Do not use household glue. Call the office for guidance on what to do until you are seen.
Mayo Clinic says to go to an emergency room if you have trouble breathing or swallowing, or if you have a fever and facial swelling and cannot reach your dentist.
Next step
If you have a cracked, worn or heavily filled tooth, ask your dentist whether a crown is the right repair. Read about dental crowns at Town Center Dental, then call (636) 273-5866 or request an appointment. The office gives each patient their own estimate.
Frequently asked questions
How long do dental crowns last on molars?
Cleveland Clinic gives one average for all crowns: five to 15 years. It does not list a separate number for back teeth. Molars take heavy chewing force, so the material matters. Your dentist will talk with you about which material suits the tooth and how long to expect it to serve.
Do dental crowns hurt after?
Some sensitivity to heat and cold is common for a couple of weeks, and the gum near the crown may feel tender for a few days. Cleveland Clinic says pain that keeps you up at night is not expected. If that happens, call your dentist.
Is a crown or a filling better after a root canal?
A root canal removes the inside of the tooth, which can leave less tooth to work with. Cleveland Clinic lists covering a root canal treated tooth as one reason for a crown. Your dentist will look at how much tooth remains before recommending a crown or a filling.
How much does a crown cost compared with a filling?
A crown usually involves more steps than a filling, including impressions and a lab-made cap. Town Center Dental gives each patient its own estimate after an exam. We do not publish prices on this page.
Why is my tooth sensitive after a crown?
Cleveland Clinic says crowns may cause tooth sensitivity, especially in the first few weeks. Heat and cold are the usual triggers. Sharp pain, pain when you bite, or a crown that feels high are reasons to call your dentist, who can check the fit.
Why does my dentist recommend a crown instead of a filling?
A filling needs enough healthy tooth around it to hold. The ADA says a crown can strengthen a tooth with a large filling when not enough tooth remains to hold the filling. Ask to see the problem on an X-ray so you understand the reason.
Terms on this page
Sources
- Cleveland Clinic: Dental Crowns: Types, Procedure & Care
- ADA MouthHealthy: Crowns
- Head & Face Medicine (PMC): Onlays/partial crowns versus full crowns in restoring posterior teeth, a systematic review and meta-analysis
- Mayo Clinic: Tooth abscess, symptoms and causes
Written by Town Center Dental and checked against the sources above on October 26, 2026. Dental guidance changes, so check the linked page, and ask your dentist about your own care.