title: Dr. Simonsen's contribution.
authors.forename: T P
authors.initials: TP
authors.lastname: Croll
mesh_terms: D000134:Acid Etching, Dental / Q000266:history; D003188:Composite Resins / Q000266:history; D003793:Dental Restoration, Permanent / Q000266:history* / Q000379:methods; D049673:History, 20th Century; D019060:Minimally Invasive Surgical Procedures / Q000266:history; D010895:Pit and Fissure Sealants / Q000266:history*
chemical_list: D003188:Composite Resins; D010895:Pit and Fissure Sealants