A dental crown—often called a cap—commonly lasts about 5 to 15 years, but that is a broad estimate, not a replacement deadline. Some crowns remain serviceable much longer. Material, fit, the condition of the tooth underneath, bite forces, oral hygiene and everyday habits all affect how long one lasts. A crown’s material can change its strengths and failure patterns, but it cannot predict an individual tooth’s lifespan by itself.
Clinical studies also report “survival” over a defined follow-up period. That means the crown remained in service at that checkpoint; it does not mean every crown will last the same number of years or remain free of repair. The table below gives five-year context for several materials, not a personal forecast.
Five-year survival by crown material
| Crown material/design | Estimated survival at 5 years | How to interpret it |
|---|---|---|
| Monolithic lithium-disilicate glass ceramic | 98.5% | A single-piece ceramic design; the estimate describes pooled study results, not a guarantee for an individual crown. |
| Veneered densely sintered zirconia | 97.3% | A zirconia core with a separate veneering ceramic; chipping is one technical issue reported with layered designs. |
| Metal-ceramic | 97.1% | A metal substructure with an outer ceramic layer; appearance and the chance of ceramic chipping are part of the material tradeoff. |
| Monolithic densely sintered zirconia | 96.8% | A single-piece zirconia design; the review reported fewer ceramic fractures/chips for monolithic than veneered designs. |
| Feldspathic or silica-based ceramic | 90.4% | This group had a lower pooled five-year estimate in the review; selection still depends on tooth location, bite, appearance and clinical judgment. |
The systematic review analyzed tooth-supported single crowns and found broadly high five-year survival estimates across several ceramic and metal-ceramic designs. Study populations, materials, crown locations and follow-up varied. These figures cannot be converted into a guaranteed service life for a particular person. The review’s data and limitations are available in the PubMed record for the systematic review.
What changes how long a crown lasts?
- Tooth structure and prior treatment: A crown protects a prepared tooth, but decay, cracks or limited remaining tooth structure can affect the tooth’s outlook beneath it.
- Fit and cement seal: A damaged or poorly fitting margin can allow problems to develop at the edge. A crown that feels loose needs dental assessment.
- Bite and grinding: Clenching, grinding or an uneven bite can add repeated force and contribute to wear, chipping or fracture.
- Material and design: Metal, metal-ceramic and all-ceramic crowns have different appearance and technical tradeoffs. A material’s pooled study performance is only one factor in selecting a crown.
- Oral hygiene and gum health: The crown itself cannot decay, but the natural tooth at its edge can. Plaque, gum inflammation and new decay can threaten the restoration.
- Food, habits and trauma: Chewing hard objects, sticky foods, nail biting or an injury can damage or dislodge a crown.
- Regular review: Dental exams can identify wear, cracks, looseness or decay around a crown before the problem becomes more extensive.
Signs a crown needs a dentist’s attention
Arrange an evaluation if a crown feels loose or has shifted, a piece has chipped or fractured, the bite suddenly feels different, or the tooth becomes newly sensitive or painful. Swelling, a bad taste or food repeatedly catching at the edge also deserves assessment. These signs do not automatically mean the crown must be replaced: a dentist needs to check both the restoration and the underlying tooth.
Seek prompt dental advice after a crown comes off or a tooth is injured. Do not try to glue a crown in place with household adhesive. If you have severe pain, facial swelling or fever, contact a dentist urgently.
Repair, recement or replace?
The next step depends on what failed and how much healthy tooth remains. A dentist may be able to recement a crown that has come loose, repair limited damage, or recommend a new crown if the restoration is fractured or no longer fits. If decay or a crack has affected the tooth underneath, that problem may need treatment first. In some cases, another restoration or removal of the tooth may be discussed. An examination and, when appropriate, imaging help the dentist explain the options; a worn-looking crown alone is not enough to choose one.
Replacing a crown generally means removing the old restoration, evaluating and preparing the tooth, and fitting a new crown. Depending on the tooth and materials, the work may involve a temporary crown while a final restoration is made. Ask what treatment the tooth itself needs, whether the old crown can be reused or repaired, and what the proposed replacement includes.
How to help a crown last
- Brush twice daily with fluoride toothpaste and clean between teeth every day, including around the crown’s edge.
- Keep routine dental exams and cleanings so the crown, gumline and underlying tooth can be checked.
- Avoid chewing ice and using teeth to crack hard objects; be cautious with foods that are unusually hard or sticky.
- If you clench or grind, ask whether your bite should be assessed and whether a protective appliance is appropriate.
- Call your dentist if the crown loosens, chips or changes how your teeth meet instead of waiting for the next checkup.
For material types, benefits and limitations, see the Cleveland Clinic’s overview of dental crowns. It describes crowns as tooth-shaped restorations and gives a broad average service-life estimate of five to 15 years, while noting some last longer with care.
Questions to ask about your crown
- What material and design is this crown, and why does it suit this tooth and bite?
- How much healthy tooth structure remains, and what does that mean for the tooth’s prognosis?
- Is the problem in the crown, the natural tooth beneath it, the gumline or the bite?
- Could repair or recementing work, or is replacement more appropriate? What are the limitations of each?
- What signs should prompt an earlier check, and how often should this crown be reviewed?
- Would grinding or clenching change the care plan?
- What is included in the estimate—exam, imaging, treatment of decay, temporary crown, lab work and follow-up?
Common questions
Is a crown the same as a cap?
Yes. “Cap” is common everyday language for a dental crown, a restoration that covers the visible portion of a tooth.
Does a crown have to be replaced after 10 years?
No. Ten years is not a universal expiration date. A dentist assesses the crown’s condition and the health of the tooth underneath; a serviceable crown may remain in place, while a damaged one may need earlier attention.
Which crown material lasts the longest?
There is no material that lasts longest for every tooth and patient. The five-year study estimates above are not lifetime comparisons. Material choice also depends on location, bite forces, appearance, remaining tooth structure and the dentist’s assessment.