Mercury vapor levels in exhaust air from dental vacuum systems

Stone, Mark; Cohen, Mark E.; Debban, Brad A.

doi:10.1016/j.dental.2006.03.011

Cited by 13 publications

(10 citation statements)

References 12 publications

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“…However, since most dental chair-side personnel do not touch dental amalgam during mixing and placement, it is considered that the main sources of mercury exposure are aerosols, created in the immediate working environment during and in particular the removal of restorations of dental amalgam, and the exhaust air from dental vacuum systems. These mercury vapor releases can be substantial and well in excess of human exposure limits [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

Determination of Mercury Exposure among Dental Health Workers in Nakhon Si Thammarat Province, Thailand

Decharat

Phethuayluk

Maneelok

et al. 2014

Journal of Toxicology

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Objectives. The main objective of this study was to assess the mercury exposure levels in dental health workers that work in dental clinics. The study evaluated the airborne and urinary mercury levels, the type of work done in the clinic, and the effect of mercury exposure on health of dental health workers. Material and Methods. A case-control study was conducted with 124 exposed and 124 matched nonexposed subjects. Personal and area samplings were conducted to quantify mercury concentrations by solid sorbent tube. Urine samples were collected to determine mercury levels by cold-vapor atomic absorption spectrometer mercury analyzer. Results and Discussion. 17.6% (n = 32/182) of the air samples were higher than the occupational exposure limit (OEL). A multiple regression model was constructed. Significant predictors of urinary mercury levels included dietary consumption (fish or seafood), duration of work (yrs), work position, personal protection equipment used (PPE), and personal hygiene behaviors. Significant correlations were observed between mercury levels in urine and mercury in storage areas (r = 0.499, P < 0.05) and between mercury levels in urine and airborne mercury in personal samplings (r = 0.878, P < 0.001). Conclusion. Improvements in working conditions, occupational health training, and PPE use are recommended to reduce mercury exposure.

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Section: Discussionmentioning

confidence: 99%

Determination of Mercury Exposure among Dental Health Workers in Nakhon Si Thammarat Province, Thailand

Decharat

Phethuayluk

Maneelok

et al. 2014

Journal of Toxicology

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“…Mercury (Hg) is a toxic element that exists in the environment and accumulates in the food chain [1]. It evaporates at 20 • C, increasing its volatility with the increase of the temperature; increasing up to 8 times case the temperature reaches 50 • C [2].…”

Section: Introductionmentioning

confidence: 99%

Scalp hair and saliva as biomarkers in determination of mercury levels in Iranian women: Amalgam as a determinant of exposure

Fakour

Esmaili-Sari

Zayeri

2010

Journal of Hazardous Materials

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“…For many years, the amalgamation of silver with mercury to produce a condensable mixture which could be used to restore carious defects in teeth followed a tortuous path of negative results 4 . However, at the turn of the century, amalgam alloys having acceptable characteristics for successful clinical use emerged 5 . From that point on, silver amalgam was widely accepted as the material of choice for low-cost, easily placed, and durable restorations 6 .…”

Section: Introductionmentioning

confidence: 99%

High Copper Amalgam Alloys in Dentistry

Solanki¹

2012

Int Jour of Pharmc Res

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Amalgam Restoration is an example of the material giving its name to the process. Amalgam fillings are made up of mercury, powdered silver and tin. They are mixed and packed into cavities in teeth where it hardens slowly and replaces the missing tooth substance. The high copper have become material of choice as compared to low copper alloys nowadays because of their improved mechanical properties, corrosion resistance, better marginal integrity and improved performance in clinical trial. The high copper amalgam was used as a restorative material. The application of high copper amalgam was found to be much more useful than low copper amalgam. High copper had much more strength, corrosion resistance, durability and resistance to tarnish as compared to low copper amalgams. No marked expansion or condensation was noted in the amalgam restoration after its setting after 24 hrs. By using the high copper alloy, the chances of creep were also minimized in the restored tooth. No discomfort or any kind of odd sensation in the tooth was noted after few days of amalgam restoration in the tooth

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Mercury vapor levels in exhaust air from dental vacuum systems

Cited by 13 publications

References 12 publications

Determination of Mercury Exposure among Dental Health Workers in Nakhon Si Thammarat Province, Thailand

Determination of Mercury Exposure among Dental Health Workers in Nakhon Si Thammarat Province, Thailand

Scalp hair and saliva as biomarkers in determination of mercury levels in Iranian women: Amalgam as a determinant of exposure

High Copper Amalgam Alloys in Dentistry

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