Dr. Simonsen's contribution.
Croll
T P
TP
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*
D003188:Composite Resins; D010895:Pit and Fissure Sealants