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

摘要

Since 1976, ECTB has conducted a number of assessments of health hazard control technology on the basis of industry, common industrial process, or specific control techniques. The objective of each of these studies has been to document and evaluate effective control techniques for potential health hazards in the industry or process of interest, and to create a more general awareness of the need for or availability of an effective system of hazard control measures. In October 1986, NIOSH researchers began an evaluation of dental operatories which use scavenging systems. The evaluation had two goals: (1) to determine if there are scavenging systems which will reduce waste nitrous oxide (N2O) levels in dental operatories to the NIOSH Recommended Exposure Level (REL) of 25 ppm during the time of administration; and (2) if such systems do not exist, then to determine why they fail to meet the NIOSH criteria and provide recommendations on how the criteria can be met. The purpose of the report is to present the results of the investigations of the function and uses of the Porter-Brown and MDT McKessen Scavenging Systems to control N2O to NIOSH Recommended Exposure Levels (RELs) during dental surgery.