Blood mercury levels with amalgam retroseals: a longitudinal study.
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.
Skoner
J R
JR
Department of Pharmacology-Toxicology, Duquesne University, Pittsburgh, Pennsylvania, USA.
Wallace
J A
JA
Fochtman
F
F
Moore
P A
PA
Zullo
T
T
Hoffman
D
D
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
D012387:Root Canal Filling Materials; D003723:Dental Amalgam; D008628:Mercury