title: An experimental radiopaque composite material.
mesh_terms: D000535:Aluminum; D000818:Animals; D001464:Barium; D003188:Composite Resins / Q000592:standards*; D003287:Contrast Media / Q000633:toxicity; D003799:Dental Stress Analysis; D004548:Elasticity; D006245:Hardness Tests; D011817:Rabbits; D051381:Rats; D012822:Silicon Dioxide
chemical_list: D003188:Composite Resins; D003287:Contrast Media; D001464:Barium; D012822:Silicon Dioxide; D000535:Aluminum