National Grand Rounds - December 2025
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Fluoride Exposure and Children's IQ: Implications for Water Fluoridation Policy
Join ACMT on Tuesday, December 8, 2025, at 12 PM ET for an exclusive National Grand Rounds featuring Dr. Jayanth V. Kumar, former State Dental Director for California and a leading expert in dental public health and fluoridation science. Drawing on his extensive service on national and international expert panels—including the National Research Council committee that produced Fluoride in Drinking Water: A Scientific Review of EPA’s Standards—Dr. Kumar will discuss the evolving evidence regarding fluoride exposure and neurodevelopment. He will highlight insights from his recent work, Fluoride and Neurodevelopmental Hazard Modelling: An Assessment of Concentration-Response Analysis, which evaluates the quality and suitability of current epidemiologic studies and finds no functional association between fluoride levels consistent with community water fluoridation and cognitive outcomes. This session will clarify common misconceptions, examine the limitations of existing research, and outline why higher-quality studies in high-exposure settings are necessary to meaningfully assess potential neurodevelopmental risks.
Learning Objectives
- Describe the EPA fluoride standards
- Summarize the consensus conclusions from reviews and reports
- Explain the state of evidence linking fluoride exposure with neurodevelopmental outcomes
About The Series: ACMT's Grand Rounds offer an in-depth and interactive platform for learning and discussion about issues that impact the research and practice of medical toxicology. Experts from within and outside medical toxicology will share their knowledge and experience and highlight areas for collaboration and mutual understanding.
This webinar is for ACMT members only.
Nicholas Nacca, MD, FACMT (Moderator)
Associate Professor of Emergency Medicine
University of Rochester Medical Center
Dr. Nicholas Nacca is the director of Medical Toxicology and Medical Toxicology Fellowship Director at the University of Rochester Medical Center. In addition to being faculty member in the Department of Emergency Medicine he holds a secondary appointment in the Department of Environmental Medicine. His primary role is staffing the educational and clinical medical toxicology consultation service, with educational responsibilities to medical toxicology fellows, multidisciplinary teams of medical residents, pharmacy residents and students, as well as medical students. He staffs and directs a referral based outpatient Medical Toxicology Clinic.
Jayanth V. Kumar
Former State Dental Director
Office of Oral Health, California Department of Public Health.
Dr. Jayanth V. Kumar is the former State Dental Director in the Office of Oral Health, California Department of Public Health. Dr. Kumar is a board-certified specialist in dental public health and a former director and president of the American Board of Dental Public Health.
Dr. Kumar has served on numerous national and international expert panels. He was a member of the 2006 National Research Council committee that published the report, Fluoride in Drinking Water: A Scientific Review of EPA's Standards.
He served as a reviewer of the National Academies' review of the NTP draft monographs on the Systematic Review of Fluoride Exposure and Neurodevelopmental and Cognitive Health Effects. He is the author of the paper, “Association between low fluoride exposure and children's intelligence: a meta-analysis relevant to community water fluoridation,” and another paper, “Fluoride and Neurodevelopmental Hazard Modelling: An Assessment of Concentration-Response Analysis.”
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