can you get a cavity in a filling

can you get a cavity in a filling


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can you get a cavity in a filling

The short answer is yes, you can get a cavity around a filling, a condition known as secondary caries or recurrent caries. While fillings are designed to protect your teeth from decay, they aren't foolproof, and several factors can contribute to the development of cavities near or under existing fillings. Understanding these factors is crucial for maintaining good oral health and preventing this common dental problem.

What Causes Cavities Around Fillings?

Several factors can lead to secondary caries:

  • Poor Oral Hygiene: This is the most significant factor. Insufficient brushing and flossing allow plaque and bacteria to accumulate around the margins of the filling, creating an environment conducive to decay. Bacteria produce acids that erode tooth enamel, even around a filling.

  • Inadequate Filling Placement: If a filling isn't placed correctly, it might leave microscopic gaps between the filling and the tooth structure. These gaps provide a haven for bacteria to thrive and initiate decay. This highlights the importance of choosing a skilled and experienced dentist.

  • Wear and Tear: Over time, fillings can wear down, especially with chewing forces and acidic foods and drinks. This wear can create spaces that expose the underlying tooth to decay. Regular dental checkups help monitor the condition of your fillings.

  • Diet: A diet high in sugary and acidic foods and drinks contributes to the acid production by oral bacteria. This increased acidity weakens enamel, making it more susceptible to decay, even around a filling.

  • Tooth Grinding (Bruxism): Grinding your teeth puts extra stress on fillings, potentially causing them to crack or break, creating entry points for bacteria.

  • Lack of Regular Dental Checkups: Regular checkups and professional cleanings allow your dentist to detect early signs of secondary caries and address them before they become significant problems.

How Can You Prevent Cavities Around Fillings?

Preventing secondary caries requires a proactive approach encompassing several key strategies:

  • Meticulous Oral Hygiene: Brush your teeth twice a day for at least two minutes each time using fluoride toothpaste. Floss daily to remove plaque and food particles from between your teeth and along the gum line. Consider using an antimicrobial mouthwash as an additional preventive measure.

  • Regular Dental Checkups: Schedule routine checkups and professional cleanings every six months. Your dentist can monitor the condition of your fillings and detect any signs of decay early on.

  • Healthy Diet: Limit your intake of sugary and acidic foods and drinks. Rinse your mouth with water after consuming these items.

  • Proper Dental Sealants: Sealants are protective coatings applied to the chewing surfaces of your teeth, reducing the risk of decay. They are particularly effective on molars, which are prone to decay.

  • Mouthguards: If you grind your teeth, a custom-fitted mouthguard can help protect your teeth and fillings from excessive wear and tear.

What Happens if I Get a Cavity Around a Filling?

If you develop a cavity around a filling, your dentist will need to remove the decayed portion of the tooth and replace the filling. In some cases, more extensive treatment, such as a crown, may be necessary. Early detection is crucial to minimize the extent of the damage and the necessary treatment.

How Can I Tell if I Have a Cavity Near a Filling?

Symptoms might include:

  • Sensitivity to hot or cold: This is a common sign of both new cavities and problems with existing fillings.
  • Discoloration around the filling: The area around the filling may appear darker or stained.
  • Pain or discomfort when chewing: This indicates a more serious issue that needs immediate attention.

If you experience any of these symptoms, schedule an appointment with your dentist for an evaluation.

Remember, prevention is key! Following proper oral hygiene practices, maintaining a healthy diet, and visiting your dentist regularly are the best ways to protect your teeth and fillings from decay.