Volume 19, Number 4 (January 2013)                   J Birjand Univ Med Sci. 2013, 19(4): 416-421 | Back to browse issues page


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Akbari M, Velayati moghaddam F, Ahmadi A, Afshari R. Evaluation of urinary mercury concentrations in general dentists and restorative specialists in Mashhad in 2010. J Birjand Univ Med Sci.. 2013; 19 (4) :416-421
URL: http://journal.bums.ac.ir/article-1-1216-en.html

1- Associate Professor, Dental Research Center, Department Of Operative Dentistry, Faculty Of Dentistry, Mashhad University Of Medical Sciences, Mashhad, Iran.
2- Assistant Professor, Dental Research Center, Department Of Operative Dentistry, Faculty Of Dentistry, Mashhad University Of Medical Sciences, Iran , velayatimf@mums.ac.ir
3- General Dentistry, Mashhad, Iran
4- Associate Professor, Medical Toxicology Research Center, School Of Medicine, Mashhad University Of Medical Sciences, Mashhad, Iran.
Abstract:   (8848 Views)
Background and Aim: Amalgam is used in dentistry cautiously, due to the toxicity of mercury in dental amalgam. Dentists are exposed to mercury vapor in their routine occupational practice, which can be harmful to their health. The aim of the present study was to measure urinary mercury concentrations in general dentists and restorative specialists in Mashhad in 2010. Materials and Methods: This cross-sectional and analytical study was performed on 45 general dentists, 10 restorative specialists, and 70 controls without any exposure to mercury. A 20 ml urine sample was taken from each of the cases before each one's routine occupational practice. Mercury concentration of urine was measured by means of an atomic absorption spectrometry. The obtained data was analyzed using one-way ANOVA, Duncan tests, and SPSS software (V: 11.5) at the significant level α=0.05. Result: Mean (SD) urine mercury level of general dentists was 9.26± 2.70 µg/l and 9.13± 1.73 µg/l in general dentists and the restorative specialists, respectively and 1.84± 1.73 µg/l in the control group. There was no significant difference between urine mercury level of the general dentists and restorative specialists (P=0.833). Urine mercury levels of general dentists and restorative specialists were greater than that of the control group (P=0/000, P=0/001, respectively). Conclusion: Although the urinary mercury concentrations in dentists is higher than that in the control group, it does not reach the toxic level.
Full-Text [PDF 174 kb]   (1667 Downloads)    
Subject: Dentistry
Received: 2012/09/2 | Accepted: 2013/01/30 | Published: 2016/03/10

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