Excerpt
Introduction
According to experimental and field studies, exposure to more than 500 ppm of nitrous oxide(N 2O) and more than 15 ppm of haJothane and enflurane can cause performance impairment in neurobehavioral exammations (Bruce and Bach 1975, 1976; Smith and Shirley 1978; Allison et al. 1979; Edling 1980; Mahoney et al. 1988. Control of exposure to anesthetic gases has received increased attention since the mid-1970s, when scavenging devices were fitted on anesthesia machines to
Dr. Hayes is the director of Dental Services, Division of Commonwealth Medicine, Office of Clinical Affairs, University of Massachusetts Medical School, Worcester, MA; a clinical professor, Department of Health Policy and Health Services Research, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA; and a lecturer, Department of Oral Health Policy and Epidemiology, Harvard School of Dental Medicine, Boston, MA.
Dr. Douglass is a professor emeritus, Department of Or
Official citation: NTP (National Toxicology Program). 2016. Systematic Literature Review on the Effects of Fluoride on Learning and Memory in Animal Studies. NTP Research Report 1. Research Triangle Park, NC: National Toxicology Program.
Conclusion (page 59):
Very few studies assessed learning and memory effects in experimental animals (rats and mice) at exposure levels near 0.7 parts per million, the recommended level for community water fluoridation in the United States. At concentration
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