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Mount Sinai researchers analyze impact of chemical BPA in dental sealants used in children
Date:9/10/2010

PA in the body were not available. "Further research is needed to fully grasp the impact of BPA in dental products, and to analyze all dental products that use this chemical," continued Dr. Landrigan. "However, the overwhelming benefit of these dental resins in oral health outweighs the brief exposure to BPA. Dentists should continue to use these products, but manufacturers should disclose specific information about the chemical structures of these products and search for alternatives."

To reduce exposure, the authors recommend the use of one BPA derivative called bis-GMA over another, bis-DMA, as bis-GMA seems to pose less risk. They also recommend that dentists rub the surface of the materials with pumice to remove the top liquefied layer of the sealant. Another preventive measure would be to encourage the patient to rinse for 30 seconds immediately following the procedure to prevent saliva from breaking the chemical down into BPA.


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