title: Blood mercury levels with amalgam retroseals: a longitudinal study.
abstract: A clinical study was performed to determine if placement of an amalgam retroseal resulted in elevated blood mercury levels. Ten subjects had blood drawn 7 days before and immediately before placement of an amalgam retroseal. Postoperative blood draws occurred at 7 and 30 days. Blood samples were analyzed for mercury content by Cold-Vapor Atomic Absorption Spectrophotometry. No statistically significant increase in blood mercury levels was detected at 7 and 30 days after placement of an amalgam retroseal as compared with preoperative levels (p = 0.97). Findings support the hypothesis that placement of an amalgam retroseal does not result in significant elevations of blood mercury levels.
authors.affiliation: Department of Pharmacology-Toxicology, Duquesne University, Pittsburgh, Pennsylvania, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Skoner
authors.forename: J A
authors.initials: JA
authors.lastname: Wallace
authors.forename: F
authors.initials: F
authors.lastname: Fochtman
authors.forename: P A
authors.initials: PA
authors.lastname: Moore
authors.forename: T
authors.initials: T
authors.lastname: Zullo
authors.forename: D
authors.initials: D
authors.lastname: Hoffman
mesh_terms: D000328:Adult; D000368:Aged; D016009:Chi-Square Distribution; D003723:Dental Amalgam; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008628:Mercury / Q000097:blood*; D008875:Middle Aged; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials; D018709:Statistics, Nonparametric; D013997:Time Factors
chemical_list: D012387:Root Canal Filling Materials; D003723:Dental Amalgam; D008628:Mercury