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Oral Health Topics

Bisphenol A

Key Points:

  • Bis-GMA, Bis-DMA, Bis-EMA and EBDMA, commonly used monomers in dentistry, are derivatives from bisphenol A (BPA).
  • Traces of unreacted BPA may be found as impurities from the synthesis of BPA-derivative monomers.
  • Small and transient increase in baseline BPA levels may be detected in patient’s urine and saliva following treatment with resin-based dental materials, with potentially no clinical or health significance.
  • Following manufacturer directions regarding placement and polymerization of resin-based materials minimizes potential patient BPA exposure.
  • Introduction
  • BPA in Dental Resin Monomers
  • BPA in Dental Sealants
  • BPA in Resin Composite
  • BPA in Orthodontic Bonding Materials
  • Strategies to Help Minimize Dental Patient BPA Exposure
  • Abbreviations
  • References
  • ADA Resources
  • Other Resources

Reviewed by: Clinical Excellence Subcommittee, ADA Council on Scientific Affairs

Last Update: August 4, 2020


Prepared by:

Department of Scientific Information, Evidence Synthesis & Translation Research, ADA Science & Research Institute, LLC.


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