title: Analyses of dental pulp in restored teeth.
abstract: Restored teeth were extracted from test animals at four time intervals (1 hour, 1 day, 1 week, and 3 months) following amalgam insertion. Extracted teeth were frozen in liquid nitrogen, cryo-fractured so as to expose the pulps and then freeze-dried. Pulps were analyzed for mercury content by energy dispersive spectrometry (EDS) and atomic absorption spectrophotometry (AAS). Mercury levels appeared below the detection limits of EDS but could be detected by AAS which showed the highest readings seven days after amalgam insertion.
authors.affiliation: School of Dentistry, University of Mississippi, Jackson 39216.
authors.forename: D L
authors.initials: DL
authors.lastname: Lentz
authors.forename: J T
authors.initials: JT
authors.lastname: Buchanan
authors.forename: D R
authors.initials: DR
authors.lastname: Basinger
mesh_terms: D000818:Animals; D003723:Dental Amalgam; D003782:Dental Pulp / Q000378:metabolism / Q000648:ultrastructure*; D003793:Dental Restoration, Permanent; D004285:Dogs; D005614:Freeze Fracturing; D008628:Mercury / Q000493:pharmacokinetics*; D008855:Microscopy, Electron, Scanning; D013054:Spectrophotometry, Atomic; D013997:Time Factors
chemical_list: D003723:Dental Amalgam; D008628:Mercury