The Dangers of Mercury in Dentistry: What You Need to Know
Mercury fillings or amalgams and how you need to have them removed.
The health risks associated with mercury in dentistry have been a topic of concern since its introduction in the 1830s. Despite this, millions of people have had mercury amalgam fillings placed in their mouths—mere inches from the brain and vital passageways like the throat, nasal cavity, and lungs.
Dr. Boyd Haley, a renowned professor and former chair of the chemistry department at the University of Kentucky, has extensively studied mercury’s effects on tissues and its potential links to Alzheimer’s disease and autism. He highlights a striking contradiction: once mercury fillings are removed, the amalgam is classified as toxic waste by the EPA and must be handled carefully to protect dental staff from exposure. According to Dr. Haley, mercury vapor is a potent toxin that readily penetrates the central nervous system, and the amalgams themselves continuously emit mercury vapor—a fact widely recognized by chemists.
Mercury Vapor: A Constant Threat
Mercury fillings release vapor 24/7, with spikes during activities like chewing, teeth grinding, or consuming hot beverages. Chewing gum can increase mercury vapor release by an astonishing 15,000%. This vapor not only circulates in the mouth but is also swallowed, disrupting gut health by harming beneficial bacteria.
Candida and other fungi thrive in the presence of mercury, making conditions like candida overgrowth harder to resolve while fillings remain. Mercury can also impair gum tissue health, leading to receding gums and other issues. Beyond the oral cavity, mercury wreaks havoc on the endocrine system, interfering with hormone function by binding to receptor sites and altering their activity. This can impact hormones like insulin, testosterone, and estrogen, which play critical roles in overall health.
A Toxic Domino Effect
Mercury doesn’t stop there—it can disrupt cell membranes, nerve impulses, enzyme activity, and even DNA repair. It affects mitochondrial energy production and weakens immune function, making the body more vulnerable to chronic conditions.
Cumulative Health Impacts
Mercury poisoning accumulates over time, with early symptoms like muscle tremors and memory loss. Prolonged exposure has been linked to severe conditions such as chronic fatigue, multiple sclerosis, Parkinson’s disease, and Alzheimer’s disease. Alarmingly, studies show that many dentists have mercury levels in their blood and urine far above normal, due to regular exposure in their work environments. This has been correlated with higher rates of depression, neurological issues, and even suicide among dental professionals.
The Composition of Amalgam Fillings
Typical silver amalgam fillings are a mix of metals, with about 49% mercury, 35% silver, and smaller amounts of tin, copper, and zinc. Alternative options like gold crowns, porcelain, and composite fillings also pose risks, as many contain harmful substances such as BPA, aluminum, nickel, and formaldehyde.
Safer Alternatives
The most biocompatible options for fillings and restorations are ceramic and ceramic-resin hybrids. These materials are strong, durable, and free from heavy metals and other toxins. In cases of deep cavities, composite resins that avoid drilling can also be considered.
For more detailed information on dental filling options and their potential health impacts, Dr. Bob Marshall’s book Making the Right Dental Choice is a helpful resource.
Understanding these risks empowers you to make informed decisions about your dental health. Prioritize your well-being by exploring mercury-free alternatives and consulting with a holistic dentist who values biocompatible treatments.
