Can You Get a Cavity on a Filling?
The short answer is: yes, you can get decay around a filling, but it's not technically a "cavity on a filling." The decay occurs adjacent to the filling, in the remaining tooth structure. Let's explore why this happens and what you can do to prevent it.
What Causes Decay Around a Filling?
Decay develops when bacteria in plaque produce acids that attack the tooth enamel. While fillings protect the area they cover, they can't protect the surrounding tooth structure if proper oral hygiene isn't maintained. Several factors contribute to decay occurring near a filling:
- Inadequate Cleaning: Food particles and bacteria can easily collect along the edges of a filling, especially if it's poorly placed or the margins aren't smooth. This creates a breeding ground for decay.
- Poorly Placed Filling: If a filling isn't placed correctly, it might leave gaps or crevices between the filling material and the tooth. These gaps can trap bacteria and lead to decay.
- Wear and Tear: Over time, fillings can wear down, creating gaps or cracks that allow bacteria to penetrate. This is more common with older fillings.
- Recurrent Decay: Sometimes, decay can develop underneath or around an existing filling, even if the initial cavity was completely filled. This is often due to incomplete removal of the original decay before the filling was placed.
- Tooth Grinding (Bruxism): Grinding your teeth can create stress and micro-fractures around fillings, making them more susceptible to leakage and subsequent decay.
- Sugar Consumption: High sugar intake contributes to increased bacterial activity in the mouth, accelerating decay even around fillings.
What are the Signs of Decay Around a Filling?
Recognizing the signs early is crucial for preventing further damage. Look out for:
- Discoloration: The area around the filling might appear darker or stained.
- Sensitivity: You may experience increased sensitivity to hot or cold temperatures.
- Pain: In more advanced cases, you might feel pain or discomfort when chewing.
- Visible Gaps or Cracks: You might notice a visible gap or crack between the filling and the tooth.
How Can I Prevent Decay Around My Fillings?
Maintaining excellent oral hygiene is paramount. This includes:
- Brushing Twice Daily: Use a fluoride toothpaste and brush thoroughly, paying close attention to the areas around your fillings.
- Flossing Daily: Flossing removes food particles and plaque from between teeth and around fillings where your toothbrush can't reach.
- Regular Dental Checkups: Schedule regular checkups and cleanings (at least twice a year) to allow your dentist to monitor your fillings and identify any potential problems early.
- Dietary Changes: Limit your intake of sugary foods and drinks to reduce the bacterial activity in your mouth.
- Mouthwash: Using a fluoride mouthwash can further strengthen your enamel and help prevent decay.
How is Decay Around a Filling Treated?
If your dentist detects decay around a filling, they might recommend:
- Repairing the Existing Filling: If the decay is minimal, they may simply remove the decayed area and replace the existing filling.
- Replacing the Filling: If the decay is more extensive, the entire filling might need to be replaced.
- Root Canal Treatment: In severe cases where the decay reaches the pulp (the nerve of the tooth), a root canal might be necessary to save the tooth.
By practicing good oral hygiene, maintaining regular dental checkups, and making conscious dietary choices, you can significantly reduce your risk of developing decay around your fillings and maintain a healthy, beautiful smile for years to come. Remember, prevention is key!
