Quantitation of total mercury vapor released during dental procedures

Mercury vapour levels in dental practices and body mercury levels of dentists and controls

“…6,7 A number of authors have maintained that the use of amalgam results in significant adverse health effects [8][9][10] although other reports assert that the health risk from amalgam restorations is negligible for the majority of dental personnel and patients. 11,12 Low concentrations of urinary mercury reported in recent studies of DHCWs 3,13,14 contrast with those published a decade or so ago. [15][16][17] These reductions may be considered to be due to greater awareness of the possible problems caused by excessive mercury intake, the use of automated methods of amalgam preparation and improvements in mercury hygiene in dental surgeries.…”

“…In this respect, it has previously been considered that mercury may vaporise during removal, mixing and polishing of amalgam restorations. 3 Mercury has been demonstrated to have effects on the kidney and central nervous system 4,5 and has been implicated in adverse effects on other body systems. 6,7 A number of authors have maintained that the use of amalgam results in significant adverse health effects [8][9][10] although other reports assert that the health risk from amalgam restorations is negligible for the majority of dental personnel and patients.…”

Surface analysis of dental amalgams by X-ray photoelectron spectroscopy and X-ray diffraction

“…The evaporation occurs not only from the newly made restoration but also from the set material [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In an ongoing study, Berglund Hanawa et al [15,16] revealed that the zinc containing amalgam forms a tin and zinc oxide layer on the surface and this layer suppresses the mercury evaporation.…”

Mercúrio em clínica odontológica: concentrações semanais no ambiente de trabalho e suas relações com procedimentos dentários em São Gonçalo, Estado do Rio de Janeiro, Brasil

“…O procedimento amálgama (grupo I) apresentou média de 3,38 (DP -2,50) µg/m 3 neste tipo de procedimento, com médias diárias variando de 0,69 (DP -0,71) a 6,77 (DP -1,92) µg/m 3 de ar. Outros estudos 21,23 A temperatura no terceiro dia de avaliação pode ter contribuído para um aumento da concentração do Hg 0 no ar neste dia, embora medições da temperatura ambiente não estivessem incluídas no desenho do estudo, não sendo possível, portanto, uma conclusão sobre o efeito desta variável. Os dentistas supervisores não foram avaliados no presente estudo porque não trabalhavam diretamente no atendimento da clínica geral, de modo que alguns profissionais atendiam em outras especialidades e não estariam no local de avaliação.…”