PFM crowns, also known as porcelain-fused-to-metal crowns, are a common type of dental restoration that combines the strength of metal with the natural appearance of porcelain. They have been used for many years and have proven to be durable and long-lasting. However, their lifespan can vary depending on several factors.
On average, PFM crowns can be expected to last from 5-15 years. This range takes into account the normal wear and tear that occurs with daily use. It’s important to note that this is just an average, and individual results may vary. Some PFM crowns may last longer, while others may need to be replaced sooner.
The lifespan of a PFM crown can be influenced by several factors. Firstly, good oral hygiene is crucial in maintaining the longevity of any dental restoration. Regular brushing and flossing, along with routine dental check-ups, can help prevent decay and gum disease which can compromise the integrity of the crown.
Additionally, habits such as teeth grinding or clenching, known as bruxism, can put extra stress on the crown and may lead to premature failure. If you have a history of bruxism, your dentist may recommend wearing a nightguard to protect your teeth and restorations while you sleep.
The location of the PFM crown can also impact its lifespan. Crowns on molars, which endure more chewing forces, may not last as long as those on front teeth. The materials used in the crown’s construction can also affect its durability. While PFM crowns are generally strong, the porcelain outer layer may be susceptible to chipping or fracturing over time.
It’s worth mentioning that the lifespan of a PFM crown can also be influenced by the skill and expertise of the dentist who places it. A well-fitted and properly cemented crown is more likely to last longer compared to one that is poorly done. Therefore, it is essential to choose a qualified and experienced dentist for your dental restorations.
In my personal experience as a dental professional, I have seen PFM crowns last well beyond the 15-year mark with proper care. However, I have also witnessed cases where crowns needed to be replaced within a few years due to various reasons such as decay, trauma, or poor oral hygiene.
To summarize, the average life expectancy of a PFM crown is around 5-15 years. However, with good dental care, including regular oral hygiene practices and routine dental check-ups, their lifespan can be extended. Factors such as bruxism, crown location, and the quality of the restoration can also influence how long a PFM crown lasts. It is always best to consult with a dental professional who can assess your specific situation and provide personalized advice.