Studies on radio-opaque dental materials.
D000180:Acrylic Resins; D001464:Barium; D001729:Bismuth; D001965:Bromides; D003287:Contrast Media; D003764:Dental Materials; D011827:Radiation
D000180:Acrylic Resins; D001965:Bromides; D003287:Contrast Media; D003764:Dental Materials; D001464:Barium; D001729:Bismuth