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Les Cartes Porcelaine of the Mid 19th Century.
J Hist Dent
January 2025
Clinic Director, Cavity Busters Doylestown, Doylestown, PA Adjunct Professor Pediatric Dentistry University of Texas HSC at San Antonio Clinical Professor, Pediatric Dentistry Case Western Reserve School of Dental Medicine.
A unique type of advertising trade card was popular in Europe, mostly Belgium, between 1840 and 1865. These cards were produced with a coating of a white lead substance that gave them a lustrous appearance and feel, resembling porcelain. As attractive as these cards were, producing them oftentimes resulted in lead poisoning for the printers, so few were produced after 1865.
View Article and Find Full Text PDFMineral composition in mussel and clam from Faro Lake of Messina: risk assessment for human health.
Front Toxicol
December 2024
Department of Veterinary Sciences, University of Messina, Messina, Italy.
Bivalve are exposed to a wide range of contaminants, some of which may be toxic to human health. The aim of this study was to detect essential and non-essential elements such as Na, Ca, Mg, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd, Pb, Hg, Be and Co in water, sediments, and and from Faro Lake. It is a lake of marine origin located on the northern coast of Messina (Sicily), where shellfish farming has been practiced for many years.
View Article and Find Full Text PDFIdentifying the sources of mercury exposure in dental workers.
Occup Med (Lond)
January 2025
Faculty of Medicine, Department of Preventive and Social Medicine, Chulalongkorn University, Bangkok 10330, Thailand.
Dental professionals who handle dental amalgam are at risk of mercury exposure, though the prevalence and severity of elevated mercury levels from non-occupational sources are not well characterized. We report two dental workers who had elevated urinary mercury levels (37 and 25.6 mcg/L) during routine health screenings.
View Article and Find Full Text PDFHuman biomonitoring of essential and toxic trace elements (heavy metals and metalloids) in urine of children, teenagers, and young adults from a Central European Cohort in the Czech Republic.
J Expo Sci Environ Epidemiol
October 2024
RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Article Synopsis
- The study investigated urinary concentrations of 14 trace elements in 711 individuals from the Czech Republic to understand their exposure levels, including toxic metals and essential elements, and their health impacts.
- Young adults had higher levels of toxic elements, while children showed elevated levels of essential ones, with dietary factors like seafood and mushroom consumption influencing trace element concentrations.
- A significant percentage of participants exceeded the recommended health-based guidance values for arsenic and essential trace elements like zinc, indicating potential health risks associated with both deficiencies and excesses in trace element intake.*
A novel low shrinkage dimethacrylate monomer as an alternative to BisGMA for adhesive and resin-based composite applications.
Braz Oral Res
October 2024
Oregon Health & Science University, School of Dentistry, Department of Restorative Dentistry, Portland, OR, EUA.
Article Synopsis
- The study developed a new dimethacrylate isomer (PG6EMA) for potential use in dental adhesives and composites.
- The synthesis of PG6EMA involved testing its performance against a standard mixture (BisGMA/TEGDMA), highlighting differences in polymerization kinetics, viscosity, and mechanical properties.
- Results indicated that while PG6EMA had slower polymerization rates, it achieved higher degrees of conversion and reduced polymerization stress, suggesting it could be a viable alternative to traditional materials in dentistry.
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