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Increased mercury emissions from modern dental amalgams
Linköping University, Department of Management and Engineering. Linköping University, Faculty of Science & Engineering.
Swedish University of Agriculture Science, Sweden.
2017 (English)In: Biometals, ISSN 0966-0844, E-ISSN 1572-8773, Vol. 30, no 2, 277-283 p.Article in journal (Refereed) Published
Abstract [en]

All types of dental amalgams contain mercury, which partly is emitted as mercury vapor. All types of dental amalgams corrode after being placed in the oral cavity. Modern high copper amalgams exhibit two new traits of increased instability. Firstly, when subjected to wear/polishing, droplets rich in mercury are formed on the surface, showing that mercury is not being strongly bonded to the base or alloy metals. Secondly, high copper amalgams emit substantially larger amounts of mercury vapor than the low copper amalgams used before the 1970s. High copper amalgams has been developed with focus on mechanical strength and corrosion resistance, but has been sub-optimized in other aspects, resulting in increased instability and higher emission of mercury vapor. This has not been presented to policy makers and scientists. Both low and high copper amalgams undergo a transformation process for several years after placement, resulting in a substantial reduction in mercury content, but there exist no limit for maximum allowed emission of mercury from dental amalgams. These modern high copper amalgams are nowadays totally dominating the European, US and other markets, resulting in significant emissions of mercury, not considered when judging their suitability for dental restoration.

Place, publisher, year, edition, pages
SPRINGER , 2017. Vol. 30, no 2, 277-283 p.
Keyword [en]
Mercury; Non-gamma-two; Non-gamma 2; Copper amalgam
National Category
Pharmacology and Toxicology
Identifiers
URN: urn:nbn:se:liu:diva-137091DOI: 10.1007/s10534-017-0004-3ISI: 000398709100011PubMedID: 28220332OAI: oai:DiVA.org:liu-137091DiVA: diva2:1093262
Available from: 2017-05-05 Created: 2017-05-05 Last updated: 2017-05-30

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf