no. but, yes, dental sealants can cause toxic reations. i would need to know more about what all is in your mouth to offer you much of an opinion. but, what you can do is get the name of the sealants used and a copy of the MSDS (dentists get one on all products they use). if the MSDS looks ok, have a biocompatibility test and see if the products are listed as reactive for you. if you cannot find out which sealants were put in, only thing you can do is get the biocompatibility test done and just have all the sealants replaced, that you feel are suspect, with new sealants that are ok for you according to the biocompatibility report. instructions for the test are on my website:http://biological-dentistry.com/custom3.html