Dental crowns are an effective way to restore damaged or weakened teeth. Designed to improve both function and appearance, crowns cover the visible portion of a tooth and help protect it from further deterioration. However, even with their durability, crowns are still prone to damage. Understanding the reasons behind tooth crowns cracking is key to preventing future problems and maintaining a strong and healthy smile.
A dental crown is a custom-made cap placed over a tooth that has been weakened by decay, breakage, or a root canal. Crowns restore the tooth’s shape, size, and strength while improving its appearance. They can be made from a variety of materials, including:
While crowns are built to last, certain habits and conditions can lead to tooth crowns cracking.
One of the most preventable causes of crown damage is chewing hard substances. Foods such as ice, hard candy, popcorn kernels, or even non-food items like pens can place significant stress on a crown. Porcelain and ceramic crowns, while natural-looking, are particularly susceptible to chipping or cracking under excessive force.
Many people grind or clench their teeth unconsciously, especially during sleep. This exerts excessive pressure on both natural teeth and crowns. Over time, the constant grinding can wear down and crack even the most durable materials. Individuals who suffer from bruxism are often advised to wear a nightguard to protect their dental work.
Unexpected impacts to the face—such as those caused by sports injuries, falls, or accidents—can lead to tooth crowns cracking. Even a well-placed, high-quality crown can fracture under the force of a sudden blow.
The longevity of a crown depends heavily on the precision of its placement. Crowns that do not align properly with the opposing teeth or that are inadequately bonded can bear uneven bite forces. This imbalance increases the risk of stress fractures or chips.
Like any dental restoration, crowns have a finite lifespan. Constant chewing, temperature changes, and exposure to acidic environments can cause a crown to weaken. While zirconia crowns tend to last the longest, porcelain and ceramic crowns may need replacement after 10 to 15 years due to wear and tear.
A crown covers the external portion of a tooth, but it still depends on the strength and health of the underlying tooth structure. If decay develops beneath the crown, it can weaken the bond and cause the crown to shift or crack. Regular dental checkups are crucial to detect any problems early before they compromise the crown’s stability.
Frequent exposure to very hot or cold foods and drinks can cause certain crown materials to expand and contract. Over time, this temperature cycling can create microfractures that weaken the crown. Using a straw when drinking hot or cold beverages can help preserve crown integrity and prevent your tooth crowns from cracking.
Signs of a cracked crown aren’t always obvious. Here are a few symptoms to watch for:
If you experience any of these symptoms, schedule a dental appointment as soon as possible. Early intervention can prevent further damage and complications.
If you suspect your crown has cracked, avoid chewing on that side of your mouth and rinse with warm salt water to keep the area clean. Next, contact your dentist promptly. Depending on the severity of the damage, the crown may be repaired or replaced. Temporary crowns can be placed if immediate replacement isn’t possible.
Preventative care is the best way to extend the life of your dental crowns. Here are some simple yet effective tips:
While tooth crowns are designed to be durable, various factors can lead to tooth crowns cracking. If you’re experiencing symptoms of a cracked crown or want to learn more about protecting your dental restorations, contact Taylorview Dental today.
