The average age of a dental crown depends on several factors, including the type of material used, how well the crown is taken care of, and the individual’s oral health. Here’s a quick overview of the typical lifespan for common dental crown types:
Porcelain-Fused-to-Metal Crowns
Porcelain-fused-to-metal crowns have a metal substrate coated with porcelain. This combination provides strength and durability while maintaining a natural, tooth-colored appearance. The average lifespan of a PFM crown is:
- 5-15 years with proper care and maintenance
- 10+ years when placed on a back molar with less stress
- 5-10 years when placed on a front tooth that withstands more pressure during biting and chewing
All-Ceramic or All-Porcelain Crowns
All-ceramic or all-porcelain crowns contain no metal and are the most natural-looking. However, they are also more prone to fracture than metal crowns. On average, all-ceramic crowns last:
- 5-10 years for conventional porcelain
- 10-15 years for newer, stronger porcelains like zirconia
- Potentially 20+ years with zirconia crowns on molars
Gold Crowns
Gold crowns are known for their durability and longevity. With proper oral hygiene, the average lifespan of a gold crown is:
- 10-30 years
- Potentially 50+ years when placed on back teeth
Factors That Affect Longevity
While these numbers provide general estimates, many factors can shorten or extend the lifespan of a dental crown. These include:
- Placement location – Crowns last longer on back molars than front teeth.
- Amount of tooth structure removed – Less removal preserves more of the original tooth.
- Oral hygiene – Poor care increases decay risk around the crown.
- Grinding or clenching – Put more stress on the crown.
- Diet – Sugary and acidic foods can cause faster decay.
- Smoking – Impacts gum health and healing.
When to Replace a Dental Crown
Even with good oral care, crowns will eventually need replacement. Signs a dental crown needs replacing include:
- Tooth decay around the crown
- Chipped, cracked, or broken crown
- Worn edges causing gaps between the crown and tooth
- Loose crown
- Changes in bite due to worn crown
- Discoloration, especially at the gumline
- Pain or sensitivity around the crowned tooth
Your dentist should evaluate your dental crowns at each checkup visit to look for any problems. They can then advise you on appropriate timing for crown replacement based on your specific situation.
Extending the Lifespan of Dental Crowns
You can maximize the longevity of your dental crowns by:
- Maintaining excellent oral hygiene with daily brushing and flossing
- Using a soft-bristle toothbrush and toothpaste for sensitive teeth
- Seeing your dentist twice per year for exams and cleanings
- Wearing a night guard if you grind your teeth
- Eating a healthy, balanced diet low in sugars and acids
- Quitting smoking to improve gum health
- Avoiding chewing hard items like ice or popcorn kernels
Cost of Replacing a Dental Crown
The cost for a new dental crown is similar to the initial placement cost, typically ranging from:
- $800 – $1500 for a porcelain-fused-to-metal crown
- $1000 – $3000 for a porcelain or ceramic crown
- $500 – $1500 for a gold crown
The condition of the underlying tooth and amount of prep work needed can also impact the replacement cost. Dental insurance will often partially cover a crown replacement when deemed medically necessary.
Table of Average Dental Crown Lifespans
| Crown Type | Average Lifespan |
|---|---|
| Porcelain-Fused-to-Metal | 5-15 years |
| All-Ceramic/Porcelain | 5-20 years |
| Gold | 10-30+ years |
Conclusion
The average lifespan of dental crowns can vary quite a bit based on the type of crown chosen, placement location in the mouth, oral hygiene and habits, and other factors. With optimal oral care and regular dental visits, many crowns can last 15-30 years or longer before needing replacement. Staying on top of your dental checkups and communicating with your dentist will ensure your crowns stay in good shape as long as possible.
