818-992-0756 Cyrus Bandary, DMD
Prosthodontist | IAOMT Accredited

BPA in Dental Composite

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BPA in Dental Composites- Are they Safe?


Bisphenol- A in Dental Composites

There is considerable concern among scientists and the public about hormone-mimicking properties of many chemical components of plastics, including those found in dental composites.  The commonly used Bis-GMA resin uses one of the most controversial of these, Bisphenol-A (BPA).  Responsible composite manufactures claim that there is no unreacted BPA in dental resins, and that it takes high temperatures- several hundreds degrees- to liberate  free BPA.  Other critics say that, in fact, the ester bonds in resins are subject to hydrolysis, and BPA can be liberated in measurable quantities.  We know that dental sealants can vary in the amount of BPA they leak, but at present there is no good in vitro survey how much BPA is liberated by the major brands of composite resins.

Most people want to replace their silver-mercury [amalgam] filings because they are concerned about the potential toxicity of mercury or for cosmetic reason.  When amalgams are removed the most common material used to replace them is "composite", which is basically a hard plastic material.
We don't know if these composite use in young children or women teeth. could promote hormonal change.

People that are concerned enough about the toxicity of mercury to have their fillings removed and replaced certainly don't want to get rid of one toxic material, just to have another different one put in.


BPA or Bisphenol A is a chemical used in some plastic, water bottles, baby bottles, or aluminum can liners such as can Beer, can food and can soda, and cash register receipt.  Which may disrupts the body hormonal system.


Among many composite which are available in the market we use the composite which has no cytotoxicity or are very minimal if there is any (BPA free) which also shows on material safety data sheet (MSDS).  We do recommend to do biocompatibility test for those patients they have high sensitivity issues to different materials or having autoimmune disease symptom.

It is important to use not only safe composite filling (no BPA) also use other material conjunction with composite such as bonding agent and etc. to be safe too.

We have choice of using inlay onlay Empress porcelain or other safe materials such as E-max which to my knowledge they are pretty safe.  On some occasions we may use bio gold which is a holistic yellow gold.