About: http://webisa.webdatacommons.org/131443948

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 variety of types of systems and methods for measuring the color and other optical properties of teeth and other materials have previously been described.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es