A dental crown is a restoration method that can help restore the normal shape, function, and size of a damaged tooth. It’s a popular treatment option for those with a weak, broken, worn-down tooth or a root canal. A question that strikes the minds of most people opting for tooth crowns is, “How long do dental crowns last?”
While dental crowns are designed to be durable, they don’t last forever. The lifespan of a crown depends on several factors that will be discussed further. We’ll dwell on different types of crowns, their longevity, and the warning signs which indicate that a crown may need to be replaced.
You’ll also get tips for extending the life of your crown. So, whether you’re considering getting a dental crown or already have one, this blog is for you. We hope that by the end of it, you’ll better understand “how long do dental crowns last?” and how to ensure their longevity.
Let’s get started!
What is the Purpose of a Tooth Crown?
As per the American Dental Association (ADA), a dental crown is recommended to enhance the tooth’s strength when there is a large filling but insufficient tooth structure.
Additionally, your dentist may employ a dental crown for the following purposes:
- Restoring a tooth that is broken or cracked.
- Safeguarding a weak tooth from further damage or potential breakage.
- Anchoring dental bridges for tooth replacement.
- Protecting a delicate tooth following a root canal procedure.
How Long Do Dental Crowns Last? — Different Types & Their Lifespan
On average, a well-maintained dental crown can last approximately 15 years. However, it is not uncommon for dental crowns to endure for 25 to 30 years or, in some cases, over a lifetime with proper care.
The lifespan of your dental crown also depends on which type of dental crown you’re getting. Let’s look at various types of tooth crowns and their longevity.
Zirconia
Zirconia crowns are a type of ceramic crown made of zirconium dioxide, an extremely durable substance related to titanium. These crowns are highly resistant to fractures, demonstrating their strength.
Zirconia is the strongest non-metallic material utilized in crowns. However, zirconia crowns do not always fit as well as other varieties. A 2016 study discovered that monolithic zirconia crowns were the least likely to shatter or split when subjected to strong bite forces.
A zirconia crown can survive for 10–15 years or longer with adequate oral hygiene and care.
Porcelain Fused to Metal
PFM (porcelain-fused-to-metal) crowns are a popular alternative because of their natural appearance, making them ideal for front teeth. PFM crowns have been commonly prescribed for cosmetic dental remedies for the past six decades.
Conversely, porcelain is prone to chipping, and when the gums recede with age, the metal margin or edge may become evident. Nonetheless, PFM crowns have a place in dentistry, particularly in bridges that replace missing teeth.
PFM crowns can last anywhere from 5 to 15 years on average, and their lifespan can be prolonged with proper dental care.
Lithium Disilicate
Lithium disilicate is a hard crystalline solid comprised of lithium, a silver-white metal, and silicon, a strong form of glass ceramic. Dentists can use lithium disilicate to produce crowns in their offices using specialized equipment, allowing for same-day implantation.
This material is currently the most prescribed by dental laboratories for crowns. Strength, tunable translucency, superb marginal fit, and great bonding to teeth are all advantages of lithium disilicate crowns.
With good care, these crowns can endure for at least 5–15 years, if not longer.
Resin
Crowns can be made from composite resin used for dental fillings. Resin is the least-priced alternative. However, it is less durable than other materials. Resin crowns can last a decade or more if properly cared for and maintained. When utilized on molars, however, the resin may not tolerate wear and tear as well as other crown choices.
Gold
Yellow gold has been the material of choice for crowns for over a century due to its strength, resistance to chipping and breaking, and ability to fit well on the tooth. A 2015 literature assessment validated gold as the “gold standard” for crowns, with a 95% survival rate over 10 years.
A gold crown can last for decades if properly cared for. The disadvantage of gold is its unnatural appearance, which makes it better suited for molars that aren’t visible when smiling. Dentists frequently mix gold with other metals like palladium, chromium, or nickel to preserve strength while lowering expenses.
Stainless Steel
While we’ve talked about the endurance of metal crowns, it’s crucial to remember that stainless steel is only utilized as a temporary remedy. A stainless steel crown may be placed after an emergency root canal operation to safeguard the tooth before a permanent crown is available.
These temporary crowns are only meant to be worn for a few weeks. Stainless steel crowns are also used to cover decaying baby teeth in young children. They can last for several years before the permanent teeth emerge.
Do Crowns Last Longer than Veneers?
The difference between a veneer and a crown lies in the extent of coverage. A dental crown encases the entire tooth, whereas a veneer only covers the front surface. Additionally, there is a variation in thickness, with crowns being thicker than veneers.
While the lifespan of veneers and crowns is similar depending on the materials used and dental habits, veneers may only last for a short time due to their thinner nature.
In general, veneers are typically recommended for cosmetic purposes, aiming to enhance the appearance of teeth. However, if there are issues such as decay, cracks, or significant wear, a crown would provide more beneficial results. Your dentist will assess your needs and determine the most appropriate restoration procedure.
How Will You Know When a Crown Needs to be Replaced?
If a dental crown is broken or there is a gap between the crown and the neighboring teeth that allows food and bacteria to accumulate, it indicates that the crown should be replaced.
Here are some warning signs that may suggest a crown is nearing the end of its lifespan:
- Pain Associated With the Tooth Containing the Crown
This often indicates tooth decay. In such cases, the crown needs to be removed along with the decay beneath it. A new crown will then be crafted and placed to restore the tooth.
- A Sensation of Instability or Movement in the Crown
This sensation may occur while chewing sticky substances like gum, caramel, or bread. If the crown feels loose or exhibits movement, it is a sign that it should be evaluated and possibly replaced.
- Diminished Aesthetic Appeal of the Twitch the Crown
Some patients desire whiter crowns, especially if the adjacent teeth have been whitened. They may also wish to alter the shape or overall appearance of the crown. Additionally, if a crown becomes chipped, a patient may consider replacing it to restore the desired appearance.
Factors Affecting the Lifespan of a Crown?
The lifespan of a dental crown can vary depending on factors such as the materials used, your dental hygiene habits, and lifestyle choices. Other factors that can impact the lifespan of a crown are as follows:
- Type & Quality of the Crown
The quality of the crown and the materials used in its construction can influence its durability and longevity.
- Dentist’s Skill Set
The dentist’s expertise in tooth preparation, impression taking, and crown placement can significantly affect the crown’s lifespan. Utilizing digital scanners for precise measurements is more accurate compared to traditional impression materials.
- The Health of the Affected Tooth
If the tooth receiving the crown is in good overall health, with longer roots and healthy surrounding gum and bone levels, the crown and the tooth are likely to have a better prognosis.
- Using Teeth as Tools
Using your teeth to perform tasks like opening bottles, tearing threads, or chewing on ice and pencils can jeopardize the crown’s longevity.
- Tooth Grinding (Bruxism)
Clenching and grinding teeth, especially while sleeping, can wear down the crown’s surface and jeopardize its stability, especially if the crown is composed of ceramic material. It may be beneficial to consult your dentist about using a mouthguard to protect the crown during sleep.
How Can I Extend the Lifespan of My Crown?
To ensure the longevity of your dental crowns, it’s important to follow these guidelines:
- Avoid Clenching or Grinding Your Teeth
Excessive force can lead to chipping or cracking of the crown. If you have a habit of clenching or grinding, consider using a custom-made night guard while you sleep. This will protect both your crowns and natural teeth from damage.
- Maintain Good Dental Hygiene Routines
Brush your teeth at least twice a day and floss once a day. Pay extra attention to the area around the crown, particularly the gum line. This will help prevent decay and protect the underlying tooth structure.
- Refrain from Biting Hard Objects
Avoid biting your fingernails or chewing on ice, hard candy, or rigid objects. These habits can cause damage not only to your crowns but also to your natural teeth.
- Attend Regular Dental Cleanings and Checkups
Make sure to schedule routine appointments with your dentist. During these visits, your dentist will examine your crowns for signs of decay, trauma, or gaps between the tooth and the crown. Early detection and timely treatment can help maintain the integrity of your crowns.
Get Dental Crowns At River’s Bend Family Dental Today!
By adhering to your dentist’s maintenance instructions and practicing exceptional care for your porcelain crowns, you can expect them to have a long lifespan. Dental health is unique to each individual and can sometimes be complex.
Regular visits to the dentists of River’s Bend Family Dental will ensure that you take the necessary steps to maximize the longevity of your dental crown. Schedule an appointment with River’s Bend Family Dental at (763) 576-1855. You can also visit our office at #14061 St. Francis Blvd NW, Ramsey, MN, 55303.
