The dentist's exposure to elemental mercury vapor during clinical work with amalgam
作者:
PohlLars,
BergmanMaud,
期刊:
Acta Odontologica Scandinavica
(Taylor Available online 1995)
卷期:
Volume 53,
issue 1
页码: 44-48
ISSN:0001-6357
年代: 1995
DOI:10.3109/00016359509005944
出版商: Taylor&Francis
关键词: Clinical operations;mercury;suction device
数据来源: Taylor
摘要:
Continuous measurements of mercury vapor in the breathing zone of the dentist were made under ordinary clinical conditions. Fifty old amalgam fillings were removed and replaced by new ones. The mercury vapor measurements were performed by means of atomic absorption spectrophotometry. On the basis of the type of suction device used, the measurements were divided into seven groups, each of which consisted of a series of measurements. During the cutting, filling, and polishing operations the mean mercury vapor levels in the breathing zone of the dentist were in the range of 1—2μg Hg m−3air when proper mercury hygiene measures were taken. This is far below the currently valid threshold limit value (30μg Hg m−3air) in Sweden. The saliva extractor and the dental mirror-evacuator did not influence the mercury vapor levels when used together with the high-volume evacuator. However, when only a saliva extractor was used, the cutting of amalgam fillings caused highly fluctuating mercury vapor levels, which were 2–15 times higher than the threshold limit value.
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