Yes, ethoxylated BisGMA is an alternative monomer with different properties compared to BisGMA. Due to its chemical structure, it is not cell-permeable. Ethoxylated BisGMA is present in our els extra low shrinkage composites, flow, bulkfill, while no BisGMA is present in the apt advanced polymer technology composites and flow. It should be noted, however, that SAREMCO does not use BisGMA in the production of apt advanced polymer technology composites and apt flow.