About: http://webisa.webdatacommons.org/228515577

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	It will be noted that the filler is an optional ingredient, unfilled formulations being employed where the dental composition is intended for use as a coating, margin
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com