NDLI: Exposure to airborne methacrylates and natural rubber latex allergens in dental clinics

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Journal of Environmental Monitoring Vol - 3 Issue - 2

Journal of Environmental Monitoring Vol - 3 Issue - 1

Journal of Environmental Monitoring Vol -2

Exposure to airborne methacrylates and natural rubber latex allergens in dental clinics

Content Provider	Royal Society of Chemistry (RSC)
Author	Alanko, Kristiina Jolanki, Riitta Kanerva, Lasse Henriks-Eckerman, Maj-Len Kerosuo, Heidi
Copyright Year	2001
Abstract	The exposure of dental personnel to airborne methacrylates and natural rubber latex (NRL) allergens was studied during placing of composite resin restorations in six dental clinics in Finland. Both area and personal sampling were performed, and special attention was paid to measurement of short-term emissions from the patient's mouth. Methacrylates were collected onto thermal desorption tubes filled with Tenax TA and NRL allergens onto membrane filters. The methacrylate samples were thermally desorbed and analysed by gas chromatography with mass selective detection. The NRL allergen concentrations were determined by the allergen-specific IgE-ELISA-inhibition method. The median concentration of 2-hydroxyethylmethacrylate (2-HEMA) was 0.004 mg m−3 close to the dental nurse's work-desk and 0.003 mg m−3 in the breathing zone of the nurse with a maximum concentration of 0.033 mg m−3. Above the patient's mouth the concentration of 2-HEMA was about 0.01 mg m−3 during both working stages, i.e., during application of adhesive and composite resins and during finishing and polishing of the fillings. Maximum concentrations of 3–5 times higher than median concentrations were also measured. Triethyleneglycol dimethacrylate was released into the air mainly during the removal of old composite resin restorations (0.05 mg m−3) and only to a minor extent during finishing and polishing procedures. The median concentration of the NRL allergen was 0.12 au m−3 (au = arbitrary unit) with a maximum concentration of 1.1 au m−3. The results show that, except for short-term emissions from the patient's mouth, the exposure of dental personnel to methacrylates and NRL allergens is very low. Measures to reduce exposure are discussed, as the airborne concentrations of methacrylates should be kept as low as possible in order to reduce the risk of hypersensitivity.
Starting Page	302
Ending Page	305
Page Count	4
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	3
Issue Number	3
Journal	Journal of Environmental Monitoring
DOI	10.1039/b101347p
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	NRL Finland Particulates Natural rubber Latex United States Naval Research Laboratory Dental composite Membrane technology Gas chromatography Allergen (Hydroxyethyl)methacrylate Historical European martial arts Hypersensitivity
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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