has subject area Biomedical and Dental Materials - Polycarboxylate Cement Biomedical and Dental Materials - Polymers Bridged Bicyclo Compounds, Heterocyclic Chemical Phenomena - X-Ray Diffraction Chemistry Techniques, Analytical - X-Ray Diffraction Chemistry Techniques, Analytical - X-Ray Diffraction Heterocyclic Compounds, 4 or More Rings - Porphyrins Macrocyclic Compounds - Porphyrins Macromolecular Substances - Polymers Manufactured Materials - Polycarboxylate Cement Manufactured Materials - Polymers Nanostructures Physical Phenomena - X-Ray Diffraction Pigments, Biological - Porphyrins Pyrroles - Porphyrins Solutions Viscosity