Dental crowns are a durable and effective way to restore damaged teeth, protecting them from further harm and improving their appearance. However, despite their strength, decay can still occur beneath a crown. This isn't necessarily a sign of failure on the part of the dentist or a poorly placed crown, but rather highlights the importance of diligent oral hygiene and regular dental checkups. So, just how common is this issue? Let's delve into the details.
It's difficult to give a precise percentage on how common decay under a crown is, as studies vary and data collection methodologies differ. However, various dental studies consistently show that secondary caries (decay under a crown) is a significant clinical problem. While not universally prevalent, it's a considerable concern that dentists address regularly. The rate of occurrence is influenced by several factors, which we'll explore below.
Why Does Decay Occur Under a Crown?
Several factors contribute to the development of decay under a crown:
- Inadequate Preparation: If the tooth isn't properly prepared before the crown is cemented, leaving behind decay or plaque, it can create a breeding ground for bacteria.
- Poor Oral Hygiene: Neglecting proper brushing and flossing allows bacteria to accumulate at the gum line and the margins of the crown, leading to decay. This is perhaps the most significant contributing factor.
- Leaking Margin: Over time, the cement sealing the crown to the tooth can degrade, creating tiny gaps that allow bacteria and food particles to penetrate underneath.
- Pre-existing Decay: If decay was present before the crown was placed, and it wasn't completely removed, it can continue to progress beneath the crown.
- Diet: A diet high in sugar and carbohydrates provides ample fuel for bacteria to produce acids that erode tooth enamel, even under a crown.
- Xerostomia (Dry Mouth): Reduced saliva flow hampers the mouth's natural cleaning process, increasing the risk of decay.
How Can I Prevent Decay Under a Crown?
Prevention is key when it comes to avoiding decay under a crown. Here's what you can do:
- Maintain Excellent Oral Hygiene: Brush thoroughly twice a day with fluoride toothpaste, floss daily, and use an antiseptic mouthwash as directed by your dentist.
- Regular Dental Checkups: Schedule routine checkups and cleanings, typically every six months. Your dentist can use special tools and X-rays to detect decay early, even beneath the crown.
- Proper Diet: Limit sugary and acidic foods and drinks. Rinse your mouth with water after consuming these items.
- Careful Chewing: Avoid using crowned teeth to bite down on extremely hard objects, which could fracture the crown or damage the underlying tooth structure.
How Is Decay Under a Crown Diagnosed?
Detecting decay under a crown requires a thorough examination by your dentist. They may utilize:
- Visual Examination: Checking for discoloration or other signs around the crown's margin.
- Radiographs (X-rays): X-rays provide a detailed view of the tooth structure beneath the crown, revealing any hidden decay.
- Transillumination: Shining a light through the tooth to identify subtle decay.
What Happens If Decay Is Found Under a Crown?
If decay is detected, your dentist will likely need to remove the crown to address the affected area. This usually involves removing the decayed tooth structure, cleaning the area thoroughly, and possibly filling it. The crown may then be recemented, or a new crown might be necessary depending on the extent of the damage.
Is Decay Under a Crown Always Painful?
No, decay under a crown is not always painful. In its early stages, it may be asymptomatic. This is why regular checkups are so crucial. As the decay progresses, however, it can cause pain, sensitivity to temperature, or discomfort when chewing.
Can I Prevent Decay Under My Crown Myself?
While you can take significant steps to prevent decay through excellent oral hygiene and a healthy diet, professional dental cleanings and checkups are essential. Your dentist possesses the specialized tools and expertise needed to detect decay that might not be visible or apparent to you.
By diligently following the preventive measures outlined above and maintaining regular contact with your dentist, you significantly reduce the likelihood of experiencing decay beneath your dental crown, ensuring the longevity and effectiveness of this restorative treatment. Remember, early detection and treatment are paramount in maintaining optimal oral health.
