What are veneers?
Veneers are thin shells made of porcelain or composite resin that are bonded to the front of teeth to improve their appearance. They are commonly used to correct chipped, worn, crooked, stained or gapped teeth. Veneers provide an aesthetic alternative to crowns and can dramatically improve the look of your smile.
The veneer shells are custom made to match the size, shape and color of your natural teeth. They are bonded firmly to the front surface of the tooth with dental cement. This creates a strong, durable bond that allows the veneer to function just like a natural tooth surface.
Veneers are a semi-permanent solution that can last 10-15 years with proper care. They provide an immediate smile transformation that requires minimal removal of natural tooth structure compared to a crown.
Why do cavities can form under veneers?
Although veneers provide a protective coating over the visible part of the tooth, the underlying tooth structure remains susceptible to cavities and decay. Here are some of the reasons why cavities can still occur with veneers in place:
- Veneers do not completely seal off the tooth – Some space remains between the veneer and the tooth surface, allowing bacteria to infiltrate and cause decay.
- Cracks or gaps in the veneer – Small cracks that develop over time in the veneer can provide an entry point for bacteria.
- Porcelain is not impenetrable – While very durable, porcelain veneers are still semi-porous. Bacteria and acids can permeate the veneer over time.
- Undiagnosed cavities – Pre-existing tooth decay that is not addressed properly before the veneer is placed.
- Poor oral hygiene – Inadequate brushing and flossing allows plaque buildup along the veneer edges.
For these reasons, it is certainly possible for new cavities to develop underneath veneers if preventive care is not maintained.
How to prevent cavities from forming under veneers?
The good news is that with proper home care and professional maintenance, you can prevent cavities from occurring under your veneers. Here are some effective tips:
Practice thorough oral hygiene
Meticulous brushing and flossing is essential to preventing decay from developing under veneers. Brush your veneered teeth thoroughly twice a day using a soft-bristled toothbrush and fluoride toothpaste. Pay close attention to brushing along the gumline of the veneers.
Floss once daily, taking care to floss between the veneer and adjacent teeth. This removes plaque and debris that can get trapped in these areas. An interdental cleaner or water flosser can also help dislodge food particles.
Get regular dental cleanings and checkups
See your dentist for professional cleanings every 6 months. Your hygienist will be able to remove plaque in difficult to reach areas and below the veneer margins. The dentist will also check for any signs of decay, cracks or damage during your checkup visits. Getting your veneers professionally cleaned is critical to preventing cavities.
Avoid sugary and acidic foods
Be mindful of your diet by minimizing sugary snacks and acidic drinks like sodas, juices and sports drinks. The bacteria in plaque feed on sugar and release acids that attack the enamel under veneers.
Use fluoride rinses
Fluoride strengthens enamel and wards off decay. Using an ADA approved fluoride mouthwash daily can provide added protection between your brushing sessions. Your dentist may also apply concentrated fluoride varnish to the veneer edges during your visit.
Repair any cracks immediately
Small cracks in veneers provide the perfect breeding ground for bacteria. Seek prompt repair or replacement of any cracked or fractured veneers before decay results underneath. Minor veneer cracks can often be repaired with composite resin.
Have proper occlusion
Excessive biting forces placed on veneers over time can cause fractures. Make sure you have proper bite alignment and avoid clenching or grinding your teeth. Your dentist may recommend a nightguard if you grind your teeth.
Return for follow-up visits
Schedule follow-up appointments with your dentist every 6-12 months. They will examine the veneers for any signs of problems and repeat necessary preventive care. Early detection of cavities or cracks is advantageous.
Can cavities be treated if they do form under veneers?
If despite your best efforts, you do end up developing a cavity beneath a veneer, prompt treatment is recommended. Here are some of the options available:
- Replacing the veneer – In some cases, the dentist may decide to replace the veneer with a new one to gain access to the cavity.
- Small fillings at veneer edges – For decay at the margin, a filling can be placed at the edge of the veneer.
- Crown replacement – If the decay is extensive, a crown may be needed to cover and protect the damaged tooth.
- Patching a crack – Minor cracks in the veneer can be patched with composite resin.
- Root canal therapy – If the pulp becomes infected from decay under a veneer, a root canal procedure may be performed.
The good news is that cavities under veneers can be successfully treated if caught early. Be sure to contact your dentist at the first sign of pain, sensitivity or visible decay. With prompt intervention, your veneers can often be repaired and saved.
Important tips to summarize
Here is an overview of the main tips for preventing cavities under your veneers:
- Brush and floss thoroughly twice a day
- See your dentist every 6 months for exams and cleanings
- Avoid excessive intake of sugary and acidic foods/drinks
- Use a daily fluoride rinse
- Have any veneer cracks repaired immediately
- Practice good bite alignment and avoid teeth grinding
- Get follow-up exams every 6-12 months
Following meticulous home care habits, seeing your dentist regularly and maintaining your veneers properly will go a long way in preventing unsightly decay from taking hold underneath.
Frequently Asked Questions
Can you get cavities under porcelain veneers?
Yes, it is possible for decay to occur under porcelain veneers if plaque is allowed to build up. Porcelain is semi-permeable and cannot fully prevent cavities on its own. Practicing good oral hygiene and having regular dental visits is key to avoiding this problem.
Do veneers protect against cavities?
Veneers provide some protection against cavities but they cannot completely prevent decay from occurring on the underlying tooth structure. Veneers are meant to be a thin cosmetic shell over the front surface of the tooth. Ongoing prevention and diligent oral care is still required.
How long do veneers last if you take care of them?
With proper home care and professional maintenance, veneers can last 10-15 years or longer. Avoiding tooth grinding, fractures and decay are the main factors that help veneers last their intended lifespan.
Can a small cavity under a veneer be filled?
Yes, depending on the location and extent of the decay, your dentist may be able to fill a small cavity at the edge of the veneer without having to fully replace it. This can help save your veneer.
Do veneers change the way you brush and floss?
Veneers should not significantly alter effective brushing and flossing habits. You may need to pay extra attention to brushing along the gumline and flossing between the veneer edges. Use a very soft toothbrush and gentle flossing technique.
Conclusion
Veneers are an excellent way to improve the appearance of your smile, but still require diligent oral hygiene and professional care to prevent cavities from forming underneath. Practicing thorough daily brushing and flossing, seeing your dentist regularly, avoiding tooth grinding, and getting prompt repair of any cracks or damage can help your veneers last many years without decay. With proper prevention and prompt treatment when needed, veneers can remain cavity-free and keep your smile looking beautiful.