Lead in human teeth dentine as a bio-indicator of environmental exposure to lead
نویسندگان
چکیده
منابع مشابه
Lead levels in dentine and circumpulpal dentine of deciduous teeth of normal and lead poisoned children.
A method for the preparation of circumpulpal dentine for lead analysis is described. The technique consists of cutting 6oo-,L-thin sections of deciduous teeth, and, utilizing a vice, fracturing off the circumpulpal dentine from the coronal dentine. Both dentine and circumpulpal dentine of teeth of normal American children and previously identified lead-poisoned children were prepared in this fa...
متن کاملTeeth as indicators of exposure of children to lead.
indicators of exposure of children to lead. Deciduous molars, extracted from a total of 310 children aged between 3 and 10 years who resided in urban, suburban, and rural environments in Northern Ireland, were analysed for lead by atomic absorption spectrophotometry. Tooth lead content increased with age and was influenced by the nature of the donor's environment. Lead concentrations were great...
متن کامل[Use of urine lead level as an exposure indicator and its relationship to blood lead].
The aim of this work was to verify whether there are statistically significant correlation between the concentrations of lead in blood (Pb-B) and urine (Pb-U). Electrothermal atomic absorption spectrometry was used in the determination of lead concentration in biological material. Venous blood and spot urine were collected from workers occupationally exposed (95), adults (130) and children up t...
متن کاملAssessment of exposure to lead through air and biological monitoring in a lead and zinc mine
Background and aim: Lead is ubiquitous and one of the earliest metals discovered by the human. This metal is widely used in different industries due to its important physico-chemical properties like softness, high malleability, ductility, low melting point and resistance to corrosion. Lead absorbed in body with several routs and when transfer in blood is primarily in red blood cells. Human exp...
متن کاملReconstructing the life-time lead exposure in children using dentine in deciduous teeth.
Data are presented to demonstrate that the circumpulpal dentine of deciduous teeth can be used to reconstruct a detailed record of childhood exposure to lead. By combining high spatial resolution laser ablation ICP-MS with dental histology, information was acquired on the concentration of lead in dentine from in utero to several years after birth, using a true time template of dentine growth. T...
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ژورنال
عنوان ژورنال: Environmental Medicine
سال: 2021
ISSN: 1505-7054,2084-6312
DOI: 10.26444/ms/136503