Understanding the Risk of Cavities Under Dental Crowns

Understanding the Risk of Cavities Under Dental Crowns

September 11, 2023

Dental crowns are commonly used to restore and protect damaged or weakened teeth, providing strength, functionality, and an improved appearance. While dental crowns are produced to be durable and long-lasting, there is a possibility of cavities forming underneath them. In this article, we will examine the danger of cavities developing under dental crowns, the factors that contribute to this risk, and the importance of maintaining proper oral hygiene. Our Dentist in Ancaster, ON, offers high-quality dental crowns and emphasizes preventive

dental care to minimize the risk of cavities.

Can Cavities Form Under Dental Crowns?

Although dental crowns provide a protective barrier for the underlying tooth structure, it is still possible for cavities to form beneath them. Cavities can occur if bacteria manage to reach the vulnerable areas of the tooth that are not covered by the crown.

Factors Contributing to Cavity Risk:

Incomplete Crown Coverage:

Dental crowns cover the visible portion of the tooth, but they may not extend to the gum line or reach all the tiny crevices between the crown and the natural tooth. These areas can create spaces for bacteria to accumulate and cause tooth decay.

Improper Fit:

A poorly fitting dental crown may leave gaps or spaces between the crown and the natural tooth. These gaps can trap food particles and bacteria, increasing the risk of cavities.

Oral Hygiene Neglect:

Inadequate oral hygiene practices, such as infrequent brushing and flossing, can contribute to the development of cavities under dental crowns. Excellent oral hygiene is crucial in maintaining the health of the underlying tooth structure and preventing bacterial buildup.

Preventing Cavities Under Dental Crowns:

Maintain Proper Oral Hygiene:

Brush your teeth at least twice a day with fluoride toothpaste and floss daily to eliminate plaque and bacteria from all surfaces, including around the dental crown. Consider using an antimicrobial mouthwash as part of your oral hygiene routine.

Regular Dental Check-ups:

Schedule consistent dental check-ups with Golf Links Dental to monitor the condition of your dental crown and overall oral health. Regular professional cleanings and examinations can detect early signs of cavities and allow for timely treatment.

Healthy Diet Choices:

Limit sugary and acidic foods and beverages, as they can help spawn tooth decay. Instead, choose a varied diet rich in fruits, vegetables, and calcium-rich foods to support optimal oral health.

Why Choose our dentist in Ancaster, ON:

Our expert dentist in Ancaster, ON, is dedicated to providing high-quality dental crowns and promoting preventive dental care. Our skilled dentists prioritize patient education and emphasize the importance of maintaining superb oral hygiene to minimize the risk of cavities under dental crowns. We are committed to aiding our patients in achieving and maintaining optimal oral health.


While dental crowns offer protection to damaged teeth, the risk of cavities forming underneath them exists. Factors such as incomplete coverage, improper fit, and oral hygiene neglect can contribute to this risk. By practicing proper oral hygiene, scheduling regular dental check-ups, and making healthy lifestyle choices, you can minimize the chances of cavities under dental crowns. Golf Links Dental in Ancaster, ON, is dedicated to providing high-quality dental crowns and preventive dental care to support your oral health.