Neurotoxic effects of mercury exposure in dental personnel

Basic Clin Pharmacol Toxicol. 2019 May;124(5):568-574. doi: 10.1111/bcpt.13199. Epub 2019 Mar 12.

Abstract

Numerous studies have reported neurobehavioural effects in dental personnel occupationally exposed to chronic low levels of mercury (Hg). Hg exposure from dental work may also induce various chronic conditions such as elevation of amyloid protein expression, deterioration of microtubules and increase or inhibition of transmitter release at motor nerve terminal endings. Therefore, clinical studies of Hg toxicity in dentistry may provide new knowledge about disturbed metal homeostasis in neurodegenerative diseases such as Alzheimer's disease, multiple sclerosis and mood disorders. The purpose of this MiniReview is to evaluate the evidence of possible relevance between Hg exposure in dentistry and idiopathic disturbances in motor functions, cognitive skills and affective reactions, as well as dose-response relationships.

Keywords: cognitive functions; dental personnel; mercury; mood and symptoms; motor functions.

Publication types

  • Review

MeSH terms

  • Dental Assistants*
  • Dentistry
  • Dentists*
  • Humans
  • Mercury / metabolism
  • Mercury Poisoning / diagnosis
  • Mercury Poisoning / etiology*
  • Mood Disorders / chemically induced
  • Mood Disorders / diagnosis
  • Neuropsychological Tests
  • Neurotoxicity Syndromes / diagnosis
  • Neurotoxicity Syndromes / etiology*
  • Occupational Diseases / chemically induced*
  • Occupational Diseases / diagnosis
  • Occupational Exposure / adverse effects*

Substances

  • Mercury