When you have a white filling for a cavity, it doesn’t mean that the tooth is now immune to cavities forever. New cavities can still arise around and even under your dental work. Understanding why it happens helps you spot any early signs and improve your oral care routine.
Can a Cavity Return Around a Filling?
Yes, cavities can form around old fillings. The process is referred to as recurrent decay and occurs when bacteria enter through small gaps around the filling. This does not necessarily mean the original filling failed. It usually indicates that new decay has developed around the restoration.
Why Recurrent Decay Happens
Tooth fillings may erode slightly due to daily chewing activities, thereby causing small spaces that could allow bacteria entry. Other habits like grinding teeth, biting hard foods, and tearing open packages also cause erosion. These small gaps allow decay to start over time.
Diet and Oral Hygiene Play a Role Too
A diet high in sugars and acids can wear away at the enamel that surrounds your filling, which leaves it susceptible to additional decay. Skipping regular brushing and flossing allows plaque to build up along these edges. Both habits raise your risk of decay forming around existing dental work.
Signs of a Cavity Under a Filling
Watch for renewed tooth pain, sensitivity to hot or cold, or a rough edge you can feel with your tongue. Dark spots near the white fillings or a visible gap are also worth mentioning to your dentist, though early decay often isn’t visible at all and only shows up on a dental X-ray. These signs don’t always appear right away, so checkups remain important.
Composite Fillings and Their Lifespan
Composite fillings often last 7 to 10 years or longer, while amalgam fillings may last 10 to 15 years or more, depending on the tooth, bite forces, and oral hygiene. This variation does not suggest composite is a lesser option, only that timelines differ.
How Dentists Treat Recurrent Decay
If new decay is caught early, your dentist may replace the filling and remove the affected area. In more advanced cases, when the decay reaches the inner pulp of the tooth, a crown or root canal may be required. Tooth extraction is only advised when the decay is so far advanced that there is no alternative.
Lowering Your Risk Going Forward
Brushing twice a day, flossing once a day, and limiting sugary foods and drinks can help protect your fillings and reduce the risk of future decay. Visits to your dentist allow them to inspect your old fillings for any wear around their edges.
When to Schedule a Checkup
If you notice any new discomfort around an old filling, it’s worth getting checked rather than waiting. Dental X-rays can reveal decay that isn’t visible during a regular exam. Addressing it early can help you avoid more extensive treatment later.
Conclusion
Fillings repair a tooth, but long-term health depends on regular care and monitoring. Integrity Dental will assess your existing fillings, identify early wear and address any issues before they develop into larger problems. Call us at (586) 977-0300 to schedule a checkup and keep your restoration in good shape.