About: http://webisa.webdatacommons.org/66702525

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A dental amalgam is the cheapest of all dental materials used for restoring tooth decay and was developed over 150 years ago.
http://www.w3.org/ns/prov#wasQuotedFrom	drperrone.com