The deal with the seal....
D000571:American Dental Association / Q000266:history*; D003257:Consumer Product Safety; D003764:Dental Materials / Q000266:history* / Q000592:standards; D018865:Dental Research / Q000266:history; D003802:Dentifrices / Q000266:history* / Q000592:standards; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D014481:United States
D003764:Dental Materials; D003802:Dentifrices