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Analysis of lead levels in deciduous teeth from children in Clark County, Nevada.
Nevada Journal of Public Health
  • Kristin Murphy, University of Nevada, Las Vegas
  • Jennifer Berger-Ritchie, University of Nevada, Las Vegas
  • Shawn L. Gerstenberger, University of Nevada, Las Vegas
  • Amol B. Amin, University of Nevada, Las Vegas
  • Jason K. Nitta, University of Nevada, Las Vegas
  • Frederick G. More, New York University
  • Jeanne A. Hibler, University of Nevada, Las Vegas
  • Karl Kingsley, University of Nevada, Las Vegas
Keywords
  • Deciduous teeth,
  • Dentistry,
  • Lead levels,
  • Lead poisoning in children,
  • Nevada – Clark County,
  • Pedodontics,
  • Teeth
Abstract
Background: Elevated blood lead levels (EBLL) are declining in the United States, although some population subgroups continue to exhibit significant health disparities. A childhood lead poisoning prevention program was recently started in Nevada, and many efforts have been made to support this program and increase the screening rates. Methods: To expand the potential pool of children screened for EBLLs, a pilot study was performed to evaluate lead concentrations in extracted deciduous teeth using Graphic Furnace Atomic Absorption Spectrometry (GFAAS), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), and X-Ray Fluorescence (XRF) analysis. Results: Lead concentrations as determined by GFAAS and ICP-MS were found to be within normal ranges (0.585 ppm ± 0.022) and were similar to previous studies. Hispanic patients exhibited higher lead levels (0.580 ppm ± 0.032) than Black (0.478 ppm ± 0.051) patients, and were significantly higher than White (0.275 ppm ± 0.035) patients (p < 0.05). Analysis of a small number of matched saliva samples, however, found no evidence for acute lead poisoning. Although limited by a small initial sample size (n=22), this pilot study provides evidence that teeth can be effectively used to reveal lead exposure in pediatric dentistry patients.
Citation Information
Kristin Murphy, Jennifer Berger-Ritchie, Shawn L. Gerstenberger, Amol B. Amin, et al.. "Analysis of lead levels in deciduous teeth from children in Clark County, Nevada."
Available at: http://works.bepress.com/shawn_gerstenberger/9/