Premium
Corrosion of dental amalgam and mercury vapor emission in vitro
Author(s) -
MOBERG LARSERIK
Publication year - 1988
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1988.tb01586.x
Subject(s) - mercury (programming language) , atomic absorption spectroscopy , citric acid , phosphate , chemistry , corrosion , saliva , nuclear chemistry , metallurgy , materials science , biochemistry , physics , organic chemistry , quantum mechanics , computer science , programming language
– Amalgam specimens were immersed for 30 days in 1) water, 2) 0.9% NaCl in water, 3) 0.9% NaCl and 10 mM phosphate buffer in water, and 4) 0.9% NaCl, 7.7 mM phosphate, and 6.1 mM citric acid in water. The solutions were stored in stoppered glass tubes. Hg‐drops were immersed in solutions 1, 2, and 3. The concentration of mercury vapor in the air above the solutions was measured once a day. After 30 days the amounts of Cu, Zn, Hg, and Ag in the solutions were analyzed by atomic absorption spectrophotometry. The results showed that 0.9% NaCl alone or in combination with the additives increased the amounts of elements released into the solutions. The concentration of Hg° in the glass tubes increased with the amount of Hg in the solutions, with the exception of solution No. 3, from which significantly less Hg° evaporated. The results indicate that the composition of the saliva, oral hygiene and dietary factors may be determinants of Hg° emission from amalgams in the oral cavity.