The Effect of Dental Amalgams on Mercury Levels in Expired Air

C. W. Svare, L. C. Peterson, J. W. Reinhardt, D. B. Boyer, C. W. Frank, D. D. Gay, R. D. Cox

Research output: Contribution to journalArticle

137 Scopus citations


The expired air of a group of 48 persons, 40 with and eight without dental amalgam restorations, was analyzed for its mercury content before and after chewing. Expired air samples were collected in polyethylene bags, and a known quantity of each was pumped into the mercury detector for measurement. The results showed that examined subjects with dental amalgams had higher pre-chewing mercury levels in their expired air than those without amalgams. After chewing, these levels were increased an average of 15.6-fold in the former and remained unchanged in the latter group. It was concluded that in situ dental amalgams can increase the level of mercury in expired air.

Original languageEnglish (US)
Pages (from-to)1668-1671
Number of pages4
JournalJournal of Dental Research
Issue number9
Publication statusPublished - Sep 1981


ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Svare, C. W., Peterson, L. C., Reinhardt, J. W., Boyer, D. B., Frank, C. W., Gay, D. D., & Cox, R. D. (1981). The Effect of Dental Amalgams on Mercury Levels in Expired Air. Journal of Dental Research, 60(9), 1668-1671.