Can You Get a Cavity Under a Crown?
Yes, unfortunately, you can get a cavity under a crown. While crowns are designed to protect and strengthen a tooth, they aren't foolproof against decay. This is a crucial point to understand, and it highlights the importance of diligent oral hygiene even after receiving a crown. Let's explore this in more detail.
Why Can Cavities Develop Under Crowns?
Several factors contribute to the possibility of decay occurring beneath a dental crown:
- Inadequate Preparation: If the tooth wasn't properly prepared before the crown was placed, leaving microscopic crevices or irregularities, bacteria can still find a foothold and cause decay.
- Poor Oral Hygiene: Even with a crown protecting the visible portion of the tooth, neglecting brushing and flossing allows bacteria to accumulate along the gumline and potentially seep under the crown's margin.
- Leaking Crown: Over time, the cement securing the crown to the tooth can wear down or crack, creating gaps that allow bacteria and food particles to enter. This is more likely with older crowns.
- Recession of Gums: Gum recession exposes more of the tooth structure, potentially including areas sealed under the crown that weren't initially protected.
- Existing Decay Before Crown Placement: If there was pre-existing decay that wasn't completely removed before the crown was cemented, it can continue to progress under the crown.
How Can I Prevent Cavities Under a Crown?
Maintaining excellent oral hygiene is paramount to preventing cavities under crowns. This involves:
- Brushing Twice Daily: Using a fluoride toothpaste and a soft-bristled brush to thoroughly clean all tooth surfaces, including the gumline.
- Flossing Daily: Flossing removes food particles and plaque from between teeth and along the gumline, where bacteria can accumulate. Interdental brushes might be recommended if you have tighter spaces between teeth.
- Regular Dental Checkups and Cleanings: Professional cleanings remove plaque and tartar that you can't reach at home. Regular checkups allow your dentist to identify any potential problems, such as a leaking crown or developing decay, early on.
- Using Antibacterial Mouthwash: An antibacterial mouthwash can further reduce bacteria in your mouth. Discuss appropriate options with your dentist.
- Proper Diet: Limiting sugary and acidic foods and drinks can also reduce the risk of decay.
What Are the Signs of a Cavity Under a Crown?
Detecting a cavity under a crown can be challenging because it's hidden from view. However, some potential signs to watch for include:
- Sensitivity to Hot or Cold: Increased sensitivity to temperature changes, particularly if the sensitivity is new or worsening.
- Discoloration: A dark spot or discoloration around the gumline near the crown.
- Pain or Discomfort: A persistent ache or throbbing pain in the tooth.
- Loose Crown: If the crown becomes loose or wobbly.
What Happens if I Get a Cavity Under My Crown?
If a cavity develops under your crown, your dentist will likely need to remove the crown to treat the decay. This may involve a filling, root canal treatment (if the decay has reached the pulp), or possibly even extraction in severe cases. The crown will then typically be re-cemented or replaced.
How Often Should I See My Dentist for Crown Checkups?
The frequency of checkups will depend on individual factors, but generally, it's recommended to see your dentist for checkups and cleanings at least twice a year, or more frequently if advised. This is especially important if you have crowns or other dental restorations.
By being proactive about your oral health and following these recommendations, you can significantly reduce the risk of developing a cavity under a crown and maintain the longevity of your dental restorations. Remember, prevention is key!
