When you walk into my clinic, my primary goal isn’t just to fix a tooth; it is to ensure your overall well-being. Over the years, dentistry has evolved tremendously. We have moved past the days of silver-colored metal mouths and into an era of materials that mimic nature in both form and function. One of the most significant changes I have embraced in my practice is the use of BPA-free materials for our Composite Fillings.
You might have heard the term “BPA” thrown around in news reports regarding water bottles or food containers. But you might be wondering, what is it doing in dental materials, and why do I, as your dentist, make a specific point to avoid it? Today, I want to take you through the science, the health benefits, and the peace of mind that comes with choosing BPA-free dentistry.
Understanding Bisphenol A (BPA)
To understand why we avoid something, we first need to know what it is. Bisphenol A, commonly known as BPA, is an industrial chemical that has been used to make certain plastics and resins since the 1960s. It is incredibly common. You can find it in polycarbonate plastics (often used in containers that store food and beverages) and epoxy resins.
In the medical and dental world, BPA was often a byproduct found in older dental sealants and some composite resins. The concern arises because BPA is known as an endocrine disruptor. In simple terms, this means it can mimic the hormone estrogen in the body. While the FDA monitors exposure levels, many of my patients—and I agree with them—prefer a “better safe than sorry” approach when it comes to materials that stay permanently in their mouths.
The Evolution of Composite Fillings
In the past, if you had a cavity, you likely received a dental amalgam filling. These are the silver or dark-colored fillings that consist of a mix of metals, including mercury. While they were strong, they required the removal of a lot of healthy tooth structure to get them to stick, and frankly, they didn’t look very nice.
Enter Composite Fillings. These are tooth-colored resins that blend in perfectly with your natural smile. They bond directly to the tooth, allowing us to preserve more of your natural tooth structure. However, in the early days of these white fillings, some formulas released trace amounts of BPA as a byproduct of the curing process.
Technology has advanced. Today, I am proud to use advanced restorative materials that are formulated without the addition of Bisphenol A. We focus on biocompatibility, ensuring that the materials we use are safe, stable, and durable.
Data Point: widespread Exposure
According to the Centers for Disease Control and Prevention (CDC), nearly 93% of people aged six years and older have detectable levels of BPA in their urine. While this exposure comes from many sources like diet and air, reducing exposure in dental work is a proactive step we can control directly in the dental chair.
Why I Choose BPA-Free for My Patients
As Dr. Bruce Vafa, I view dentistry through a holistic lens. Your teeth are not separate from the rest of your body. Everything is connected. Here is why we strictly adhere to BPA-free protocols when placing Composite Fillings:
- Hormonal Balance: By eliminating BPA, we remove a potential source of xenoestrogens (foreign estrogens) that could interfere with your body’s natural hormonal regulation.
- Pediatric Safety: Children are developing rapidly, and their systems are more sensitive to chemical exposures. Using BPA-free materials is especially crucial for my younger patients to ensure their development isn’t hindered by environmental toxins.
- Peace of Mind: Many of my patients live organic, health-conscious lifestyles. Your dental work should align with those values. knowing your fillings are safe allows you to smile without worry.
The Performance of Modern Composites
A common misconception I hear is that “safer” or “greener” materials might not be as strong as the harsh chemicals of the past. I am happy to report that this is simply not true. The BPA-free Composite Fillings I use are reinforced with microscopic particles (often ceramic or glass) that provide incredible strength.
These fillings are capable of withstanding the high pressure of chewing in the back teeth (molars) while remaining polishable and beautiful for the front teeth. They are resistant to fractures and wear, making them a long-term solution for cavities.
Data Point: Durability
Modern studies on dental composites show that when placed correctly, these restorations have a high success rate. Recent clinical evaluations indicate that modern composite restorations have an annual failure rate of only about 1% to 3%, making them highly reliable for long-term use.
Visualizing the Difference: Metal vs. BPA-Free Composite
It can be helpful to visualize why we favor modern composites over traditional materials. Below is a comparison regarding the three pillars of dental restoration: Aesthetics, Biocompatibility (Safety), and Tooth Preservation.
Comparison: Amalgam vs. BPA-Free Composite
Aesthetics (Natural Look)
Amalgam (Metal) Score: Low
Biocompatibility (Safety)
Tooth Structure Preservation
What to Expect During the Procedure
If you are nervous about dental visits, I want to reassure you. Placing Composite Fillings is a straightforward and comfortable process. Here is a step-by-step look at how I handle this in my chair:
- Comfort First: We ensure the area is completely numb. I take my time here because your comfort is my priority.
- Cleaning the Decay: I gently remove the decayed portion of the tooth. Because composite bonds directly to the enamel, I can keep the drilling to a minimum, preserving your healthy tooth.
- Layering: The BPA-free resin is applied in layers. We use a special curing light to harden each layer instantly.
- Sculpting and Polishing: Once the filling is full, I sculpt it to match the natural shape of your tooth so your bite feels perfect. We finish with a high-gloss polish so it feels smooth to your tongue.
The entire process is usually completed in just one visit, and you can chew on the tooth as soon as the numbness wears off.
The Importance of Asking Questions
I encourage all my patients to be active participants in their healthcare. When you visit a dentist, it is perfectly acceptable to ask, “What materials are you putting in my mouth?”
There are hundreds of different dental composites on the market. Not all of them are created equal. In my practice, I have done the research to select brands that prioritize chemical safety without sacrificing strength. We look for materials that are “Bis-GMA free” or use alternative chemistry that does not release BPA.
For more information on the safety and regulation of dental materials, you can read this comprehensive overview from the American Dental Association (ADA) regarding BPA in dentistry.
Frequently Asked Questions
Are BPA-free fillings more expensive than regular fillings?
Generally, the cost difference is negligible for the patient. While the high-quality materials I use might cost the practice slightly more, the cost to you is typically the same as any standard Composite Filling. Most insurance plans cover them at the same rate as well.
How long do BPA-free composite fillings last?
With proper care, such as regular brushing, flossing, and dental check-ups, these fillings can last anywhere from 7 to 10 years, and often much longer. They are highly durable and resistant to the forces of chewing.
Can I replace my old metal fillings with BPA-free composites?
Absolutely. This is a very common request in my office. We can safely remove old amalgam (silver) fillings and replace them with natural-looking, BPA-free white fillings. This not only improves the look of your smile but removes metal from your mouth.
Do BPA-free fillings look natural?
Yes, they are virtually invisible. The material comes in various shades, allowing me to match the filling color precisely to your natural tooth enamel. No one will know you have a filling!
Commitment to Your Long-Term Health
Choosing the right dental materials is about more than just fixing a cavity today; it is about investing in your health for the future. I believe that by avoiding chemicals like Bisphenol A, we are taking a significant step toward safer, more holistic dentistry.
Your smile deserves the best. It deserves materials that are strong, beautiful, and biocompatible. If you have concerns about existing fillings or suspect you have a new cavity, I am here to help guide you toward the safest solutions available. Let’s work together to keep your smile healthy and toxin-free.
