title: The dates are all significant for our dental history.
mesh_terms: D003760:Dental Impression Materials / Q000266:history; D003764:Dental Materials / Q000266:history*; D003814:Dentistry, Operative / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D011861:Radiography, Dental / Q000266:history; D012408:Rubber / Q000266:history
chemical_list: D003760:Dental Impression Materials; D003764:Dental Materials; D012408:Rubber