The file contains CEM images of a 3D dental resin (it is amorphous). Is it possible to determine by structure (there are impurities) and elements (Na, Cl, Al - impurities) what kind of polymer or at least to which group it belongs and its applicability? What works have such images? What works describe the relationship between structure and elemental composition and applicability of such materials? What works describe other properties of such materials? Thank you!