Dr. Katie ToThe Wellness Dentist, CEO and Founder of Center for Wellness Dentistry and Wellness Dentist Institute.

Are Composite Fillings Toxic Too? Here's the Truth

8 Sept 2026 · 1 min

Watch on YouTube

0:30

In this segment, Dr. Katie To addresses common concerns about the safety of composite dental fillings. She explains that while some composites contain BPA, her practice exclusively uses BPA‑free materials, but individual patients may still react differently to even BPA‑free composites. She emphasizes that it is inaccurate to claim all composite fillings are toxic, noting that unlike amalgam, composites do not contain mercury, which she presents as a positive safety aspect.

A lot of people still have mercury or having symptoms. I was told I have composite fillings. Those are, those toxic as well. And again, there's always gonna be different types of composites, some that are BPA-free. And that's all the ones that we use at our practice, BPA-free. But again, it comes down to individuals. Some people, even if it's BPA-free, it can be compatible for one person but toxic to another person. So we can't make a blanket statement that every composite filling's toxic. We know at least then that they don't have mercury. That's a good thing.