How Long Do Full Coverage Crowns Last?
If you have a cracked tooth, or are missing a large chunk of your tooth, your dentist might recommend restoring your smile with a full coverage crown. Full coverage dental crowns, often simply referred to as dental crowns, are a widely used dental restoration method. They are designed to restore the original shape, size, and function of a tooth that has been damaged. Despite their durability and the protection they offer, dental crowns are not permanent fixtures and will eventually need to be replaced. The lifespan of a dental crown can vary greatly, influenced by several factors.
The Role of Dental Crowns
Dental crowns serve multiple purposes in dental care. As per the American Dental Association (ADA), dental crowns can be used when a large filling is required but the remaining tooth is insufficient to support it. Crowns can also be used to restore a broken or cracked tooth, protect a weak tooth from further damage, attach dental bridges, and safeguard a fragile tooth after a root canal procedure.
Dental Crown Materials and Their Lifespan
Dental crowns can be crafted from a variety of materials, each with its own longevity. The four most common types of crowns are zirconia, porcelain fused to metal (PFM), metal, and composite resin.
Zirconia crowns are a type of ceramic crown made from zirconium dioxide, a robust material related to titanium. These crowns are highly durable and resistant to fractures. With proper oral hygiene and care, a zirconia crown can last between 10-15 years, or even longer.
Porcelain-fused-to-metal (PFM) crowns are another popular choice, offering a natural-looking option. However, porcelain is susceptible to chipping, and over time, the metal edge may become visible as the gums recede.
Factors Influencing the Lifespan of Dental Crowns
The lifespan of dental crowns is influenced by several factors. The material of the crown plays a significant role, with metal and zirconia crowns typically being more durable than their porcelain or composite counterparts. Maintaining good oral hygiene can prevent decay and gum disease, thereby extending the life of the crown. Dental habits, such as teeth grinding or using teeth to open packages, can damage a crown and shorten its lifespan. The location of the crown also matters, as crowns on molars are subjected to more pressure from chewing, leading to faster wear and tear. The health of the underlying tooth is crucial as well, as a healthy tooth provides a strong foundation for the crown. The quality of the dental procedure, including the skill of the dentist and the dental lab, can affect the fit and durability of the crown. Lastly, regular dental check-ups allow for early detection and resolution of any issues, thereby extending the lifespan of the crown. It’s important to note that each individual’s situation is unique, and these factors should be discussed with a dentist for a comprehensive understanding.
In summary, the lifespan of a full coverage crown can vary significantly, depending on a variety of factors. However, with proper oral hygiene and care, a dental crown can last for many years, providing a durable and aesthetically pleasing solution for damaged or weakened teeth. It’s important to remember that while crowns are a valuable tool in dental restoration, they are not a permanent solution and will require replacement over time. Regular check-ups with your dentist will ensure that your crown remains in good condition and continues to serve its purpose effectively.