A-1 アマルガム充填物除去時の大気中への水銀排出量(細胞・毒性・金属,一般講演(口頭発表),第63回日本歯科理工学会学術講演会)

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  • A-1 The amount of mercury emission caused by amalgam removal into the atmosphere

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The purpose of this study was to analyze the amount of mercury emission caused by amalgam fillings removal into the atmosphere. The amalgam fillings were removed in block or by cutting into fragments, with or without water spray cooling or mist suction. As the drainage systems, the usual dental trap or the amalgam separator was adopted. The amounts of mercury emission directly into the air at amalgam removal and the indirect emission from suction units were analyzed by the highly sensitive mercury analyzer. As a result, it was clarified that the amounts of mercury emission into the air were significantly reduced by water spray cooling and the removal in block.

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