Research links dental amalgam mercury fillings to arthritis

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arthritis dental amalgam fillings
Photo: Katarzyna Bialasiewicz 123Rf

The International Academy of Oral Medicine and Toxicology (IAOMT) is raising awareness of research linking cases of arthritis to dental amalgam fillings. These silver-coloured fillings are 50 per cent mercury and are still used in the US, often in disadvantaged children and adults.

In this new study, researchers David and Mark Geier report on a significant relationship between the number of dental amalgam filling surfaces and diagnoses of arthritis. They found that incidences of arthritis peak among adults with four to seven dental amalgam filling surfaces. 

It is important to note that the number of surfaces is not the same as the number of fillings. Each tooth has five surfaces, which means that a person with only one filling could have up to five surfaces.  

The authors examined data from the 2015-2016 National Health and Nutrition Examination Survey (NHANES) including demographics, dental exams, and arthritis diagnoses. Data about the patient’s type of dental filling recently became accessible. With this information, the researchers were able to discover higher incidences of arthritis in people with silver-coloured mercury amalgam fillings than those with other fillings such as tooth-coloured composites.

“Mercury is continually off-gassed from dental amalgam fillings,” former IAOMT president David Kennedy said. 

“With the Geiers’ new research joining the ranks of thousands of other studies, it is abundantly clear that mercury from amalgams poses a danger to everyone, including patients, dentists, and dental employees.”

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