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Are clear aligners BPA-free?
Last Updated: 8/4/2026

Are clear aligners BPA-free?

Most major clear aligner brands are BPA-free, including popular orthodontic systems. Learn what that means for daily wear and safety.

Dr. Sean Myran, DMD

Reviewed by Dr. Sean Myran, DMDDoctor of Dental Medicine, University of Pennsylvania

Are clear aligners BPA-free

Yes, clear aligners made by reputable orthodontic companies like Invisalign, SmileDirectClub, Candid, and AlignerCo are BPA-free.

Instead of bisphenol A resins, aligners are made from BPA-free, medical-grade polymers and plastics, most commonly .030 to .040 gauge polyurethane.

These durable, transparent and BPA-free materials are biocompatible with oral tissues, and undergo extensive safety testing before use in orthodontic appliances.

Are clear aligners more comfortable than braces?

Some benefits of BPA-free clear aligner materials:

Key Points

  • Prevent exposure to hormone-disrupting chemicals from BPA that could leach into the mouth.
  • Reduce risks of adverse health effects associated with BPA.
  • Provide peace of mind to patients concerned about BPA exposure during treatment.

When choosing clear aligners, verify with your provider that BPA-free materials will be used for your health and safety.

What This Means for You

Do clear aligners interfere with speech?