Dental crowns are commonly used to restore damaged or decayed teeth — providing strength, protection, and an improved appearance. However, like any dental restoration, crowns may eventually need to be replaced.
In this article, we will explore the signs that indicate a crown needs to be replaced, common reasons for crown replacement, factors that can affect their lifespan, and how to care for dental crowns to prolong their lifespan.
Importantly, we’ll answer the question, “Do my crowns actually need to be replaced?”
Quick Answer: Do Crowns Need to Be Replaced?
Dental crowns occasionally need to be replaced, but not frequently.
On average, crowns can last between 5 to 15 years, depending on the material they're made of, the wear and tear they're exposed to, and how well you follow oral hygiene practices.
However — and this is important — there’s no “expiration date” on a crown. Just because a crown is 20, 30, or even 50 years old doesn’t mean it needs to be replaced. Rather, crowns should be replaced only when they fracture, chip, decay around the margins, or experience a defect that requires replacement.
Factors like biting down on hard foods, clenching or grinding your teeth, and not maintaining proper dental care can shorten a crown's lifespan. Regular dental check-ups are crucial to monitor the condition of your crowns and decide if/when a replacement is necessary.
Signs that Indicate a Crown Needs to Be Replaced
There are several signs that may indicate a crown needs to be replaced:
Visible cracks or chips in the crown
Crown has broken off along with part of the tooth
Decay around the base/margin of the crown that can’t be restored with fillings
Loose or un-cemented crown (*may not need to be replaced)
Discoloration or staining of the crown (*may not need to be replaced)
Irritation or sensitivity around the crown (*may not need to be replaced)
If you notice any of these signs, it is important to visit your dentist as soon as possible for evaluation and proper diagnosis.
Common Reasons for Crown Replacement
There are various reasons why a dental crown may need to be replaced, including:
Cracks or fractures in the crown
Decay or damage to the underlying tooth structure
Improper fit or alignment
Bruxism (teeth grinding) or clenching
Normal wear and tear over time
If your dentist determines that a replacement is necessary, they will discuss the specific reasons and treatment options with you.
Normal wear and tear on a dental crown can occur over time due to daily use and biting forces. Cracks or fractures in a crown may result from accidents, trauma, or biting on hard objects. These issues can compromise the structural integrity of the crown and increase the risk of further damage to the tooth.
Decay or damage to the underlying tooth structure can necessitate crown replacement to ensure the tooth remains healthy and functional. Improper fit or alignment of a crown can cause discomfort, affect bite function, and lead to issues with neighboring teeth.
Bruxism, a condition characterized by teeth grinding or clenching, can put excessive pressure on a crown and contribute to its deterioration. Changes in oral health, such as gum disease or root canal treatment, may also impact the longevity and effectiveness of a crown, prompting the need for replacement.
How Long Do Dental Crowns Typically Last?
The lifespan of a dental crown can vary depending on several factors, including the material used, oral hygiene practices, and habits such as teeth grinding.
On average, dental crowns can last between 10 to 15 years. However, there are many, many crowns that last for 30 or 40+ years. There’s no such thing as a crown that is “so old” that it needs to be replaced.
With proper care and regular dental check-ups, they much longer than 10 years.
Because insurance usually only pays for a crown once in a 5 year span, there is a misconception that crowns “last 5 years” or are “warrantied for 5 years.” In reality, the 5 year mark has no clinical significance — this is simply an insurance policy.
Factors That Can Affect the Lifespan of a Crown
Several factors can influence how long a dental crown will last:
Oral hygiene practices (decay around a crown and/or bone loss around a tooth are common reasons for crown failure)
Untreated teeth grinding or clenching
Destructive habits such as opening bottles or biting fishing line with teeth
Consumption of hard or sticky foods
Regular dental check-ups and cleanings
Smoking or tobacco use
By maintaining good oral hygiene and making healthy lifestyle choices, you can increase the lifespan of your dental crowns.
Costs Associated with Crown Replacement
The cost of replacing a dental crown can vary depending on several factors, including the type of material used for the crown, the location of the tooth in the mouth, and any additional procedures that may be necessary.
In the United States, a replacement crown typically costs anywhere from $700 to $1,800. We have written an entire guide on crown costs, which you can find here.
It is important to discuss the cost and any insurance coverage with your dentist prior to undergoing crown replacement to ensure you are fully informed.
Steps Involved in the Crown Replacement Process
The crown replacement process typically involves the following steps:
Examination and evaluation of the existing crown
Preparation of the tooth, which will include removing the existing crown
Impressions or digital scans of the prepared tooth
Fabrication of a new crown in a dental laboratory
Placement of a temporary crown while the new one is being made
Removal of the temporary crown and placement of the new crown
Final adjustments and checking for proper fit and bite
Each step is important to ensure a successful crown replacement, and your dentist will guide you through the process and address any concerns you may have.
How to Care for Dental Crowns to Prolong Their Lifespan
Proper care and maintenance are essential for prolonging the lifespan of dental crowns. Here are some tips to follow:
Brush your teeth at least twice a day with a soft-bristled toothbrush
Floss daily to remove plaque and food particles
Avoid biting into hard objects or foods
Wear a mouthguard if you grind or clench your teeth
Additionally, regular dental check-ups and cleanings are crucial for monitoring the condition of your crowns and addressing any issues early on.
Final Thoughts
While dental crowns can last for a significant period, it is essential to be aware of potential signs that may indicate the need for replacement.
Just because your crown is “old” doesn’t mean it needs to be replaced. Crowns don’t have an expiration date!
By understanding the common reasons for crown replacement, caring for your crowns, and maintaining a good oral hygiene routine, you can enjoy the benefits of your dental crowns for many years to come.
FAQs
How do you know if a crown needs to be replaced?
Signs a crown may need replacement include visible wear or damage, pain or sensitivity when chewing, a change in bite alignment, gum recession around the crown, or the appearance of decay at the crown's edge. If the crown feels loose or falls out, it definitely needs attention.
How often do crowns need to be redone?
Dental crowns may need to be redone after 10 to 15 years, though they can last longer with excellent care. The lifespan depends on the material, location in the mouth, and personal habits like chewing hard foods or teeth grinding. There’s no need to redo a crown just because it has passed 10 years, 15 years, or any other arbitrary age cutoff.
What happens if you don't get a crown replaced?
Failing to replace a needed crown can lead to further decay of the tooth underneath, potential tooth loss, discomfort, or infection. It can also affect your bite and lead to issues with adjacent teeth. The outcome is dependent on why the crown needs to be replaced.
How many years do crowns last?
On average, dental crowns last between 10 to 15 years, but they can last much longer with proper care. The lifespan varies based on the crown's material, its location, and the wearer's oral habits.
What happens to crowns as you age?
As you age, crowns themselves don't age but the tooth and gum around them may change, potentially leading to issues like gum recession or decay at the crown's margin. Regular dental check-ups are vital to assess and address these changes.
How many times can a dental crown be replaced?
A dental crown can be replaced as many times as necessary throughout a person's life. However, each replacement may require more work, including possible need for additional procedures like a new core build-up or root canal, to ensure the tooth can support the new crown.
What are the symptoms of a bad crown?
Symptoms of a bad crown include pain or sensitivity in the crowned tooth, especially when chewing or drinking hot or cold beverages, a visible crack or chip in the crown, feeling a rough edge with your tongue, or the crown feeling loose. Additionally, if you notice swelling of the gum around the crown or an unpleasant taste or smell, it might indicate a problem. This is challenging to diagnose without x-rays and a proper exam, so be sure to visit your dentist if you notice any irregularities in a crowned tooth.
* Though the author of this post is a licensed dentist in the state of Kansas, this information is provided for informational and educational purposes only. Please use your best judgment and contact emergency medical services in the event of an emergency.