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Effect of Admixed Indium on Mercury Vapor Release from Dental Amalgam

Department of Restorative Dentistry SM-56, School of Dentistry, University of Washington, Seattle, Washington 98195

G.H. Johnson

Department of Restorative Dentistry SM-56, School of Dentistry, University of Washington, Seattle, Washington 98195

D.J. Bales

Department of Restorative Dentistry SM-56, School of Dentistry, University of Washington, Seattle, Washington 98195

The purpose of this study was to evaluate the effect of admixed indium on the amount of mercury vapor released from dental amalgam. We made amalgam specimens according to ADA Specification Number 1. We added various amounts (0-14% by weight) of indium to the alloy powder. We also tested the commercial amalgams Dispersalloy, Valiant, and Indiloy. Specimens were held at 37°C and 100% humidity. We used a Jerome Mercury Vapor Analyzer (model 411) to measure the mercury vapor released. We analyzed the data by means of AN-OVA and Student-Newman-Keuls procedures. Admixed indium significantly decreased the amount of mercury vapor released from dental amalgams; the period of the greatest effect on mercury vapor released was during the setting phase of amalgam; and dental amalgams with greater than or equal to 8% admixed indium released the least amount of mercury vapor.

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Journal of Dental Research, Vol. 68, No. 8, 1231-1233 (1989)
DOI: 10.1177/00220345890680080301


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Powell, L.V. Articles by Bales, D.J. Search for Related Content PubMed PubMed Citation Articles by Powell, L.V. Articles by Bales, D.J. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB INDIUM MERCURY COMPOUNDS MERCURY, ELEMENTAL Medline Plus Health Information Mercury Social Bookmarking                         What's this?