| Influence of operatory size and nitrous oxide concentration upon scavenger effectiveness. | |
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MedLine Citation:
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PMID: 1918578 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Concern regarding environmental health hazards for dental personnel chronically exposed to waste nitrous oxide (N2O) prompted this investigation. The influence on ambient N2O levels of scavenging, operatory size, and N2O concentration delivered to the patient was evaluated during treatment of 36 pediatric dental patients. The results showed that scavenging significantly reduced ambient N2O levels measured at 50-56 cm from the patient's nose. Scavenged ambient N2O levels were also observed to decrease when N2O concentrations administered to the patient were reduced from 50 to 30%. This concentration effect was not observed in the non-scavenged groups. ANOVA showed that operatory size exerted a non-significant influence on ambient N2O. The data collected during routine treatment of pediatric dental patients demonstrated that the scavenging system tested significantly reduced waste N2O in the operator's breathing zone, nearly approximating the 25-ppm recommendation established by the National Institute for Occupational Safety and Health (NIOSH). |
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Authors:
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R J Henry; R E Primosch |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of dental research Volume: 70 ISSN: 0022-0345 ISO Abbreviation: J. Dent. Res. Publication Date: 1991 Sep |
Date Detail:
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Created Date: 1991-10-30 Completed Date: 1991-10-30 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0354343 Medline TA: J Dent Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1286-9 Citation Subset: D; IM |
Affiliation:
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Department of Pediatric Dentistry, University of Florida College of Dentistry, J. Hillis Miller Health Center, Gainesville 32610-0426. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants, Occupational
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analysis* Analysis of Variance Child Child, Preschool Data Collection Dental Clinics Dental Staff Environment, Controlled Female Gas Scavengers* Humans Male National Institute for Occupational Safety and Health (U.S.) Nitrous Oxide / analysis* Operating Rooms* Spectrophotometry United States Ventilation Waste Products / analysis* |
| Grant Support | |
ID/Acronym/Agency:
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S07RR05728/RR/NCRR NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants, Occupational; 0/Waste Products; 10024-97-2/Nitrous Oxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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