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In-depth survey report: control of anesthetic gases in dental operatories at University of California at San Francisco, Oral Surgical Dental Clinic, San Francisco, California, report no. CT-166-12b.

Authors
McGlothlin-JD; Jensen-PA; Cooper-TC; Fischbach-TJ; Fairfield-CL
Source
NIOSH 1990 Sep; :1-119
NIOSHTIC No.
00196011
Abstract
A study was made to document and evaluate effective techniques for the control of potential health hazards at the Oral Surgical Dental Clinic (SIC-8012), San Francisco, California. Personal exposure for waste anesthetic gas concentrations from the ten operations studied ranged from less than 1 to 277 parts per million (ppm) for the oral surgeons and from less than 1 to 77ppm for the surgical assistants. The oral surgeons had a greater range of exposure compared to the surgical assistants. These differences may be attributed to the closer working proximity of the oral surgeon to the patient's breathing zone. Work practices and changes in waste gas concentration as a function of work practices were most affected by the regulation of anesthetic gas delivery, including the amount of anesthetic delivered and the length of time the it was delivered, the breathing zone of the oral surgeon relative to that of the patient, and whether the patient was instructed to nose breathe and reduce talking when possible. General ventilation measurement showed that the surgical suites were below specifications for air flow, as much as 60% in some cases.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; CT-166-12B; Region-9; Control-technology; Ventilation-systems; Health-care-personnel; Dentists; Anesthesia; Anesthetics; Toxic-gases
Publication Date
19900901
Document Type
Control Technology; Field Studies
Fiscal Year
1990
NTIS Accession No.
PB91-152033
NTIS Price
A07
Identifying No.
CT-166-12b
Priority Area
Control-technology
SIC Code
8012
Source Name
National Institute for Occupational Safety and Health
State
CA; OH
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