title: Fifty years of dentistry--dental techniques--dental equipment.
mesh_terms: D000777:Anesthetics; D002170:Canada; D003748:Dental Equipment / Q000266:history*; D003764:Dental Materials; D006665:History of Dentistry; D049673:History, 20th Century
chemical_list: D000777:Anesthetics; D003764:Dental Materials