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Paknahad M, Mortazavi SM, Shahidi S, Mortazavi G, Haghani M

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Authors not listed · 2016

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Wi-Fi radiation doubles mercury release from dental fillings, creating unexpected toxic synergy.

Plain English Summary

Summary written for general audiences

Researchers exposed human teeth with mercury amalgam fillings to Wi-Fi signals at 2.4 GHz for 20 minutes and measured mercury release into artificial saliva. The Wi-Fi exposed teeth released more than double the mercury compared to unexposed teeth (0.056 vs 0.026 mg/L). This suggests that common Wi-Fi radiation may increase mercury exposure from dental fillings.

Why This Matters

This study reveals an unexpected interaction between two ubiquitous modern exposures: Wi-Fi radiation and mercury dental fillings. The science demonstrates that standard 2.4 GHz Wi-Fi signals can more than double mercury release from amalgam restorations in just 20 minutes. What this means for you is that the millions of people with mercury fillings may face amplified toxic exposure in our wireless world. The reality is that Wi-Fi routers, smartphones, and other 2.4 GHz devices surround us constantly at home, work, and school. While the dental industry has long debated amalgam safety, this research suggests that EMF exposure transforms mercury fillings from a static concern into an active source of increased toxicity. You don't have to accept this dual exposure without question.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.4 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.4 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2016). Paknahad M, Mortazavi SM, Shahidi S, Mortazavi G, Haghani M.
Show BibTeX
@article{paknahad_m_mortazavi_sm_shahidi_s_mortazavi_g_haghani_m_ce4848,
  author = {Unknown},
  title = {Paknahad M, Mortazavi SM, Shahidi S, Mortazavi G, Haghani M},
  year = {2016},
  doi = {10.1186/s40201-016-0253-z},
  
}
DOI: 10.1186/s40201-016-0253-zPubMed: 27418965

Quick Questions About This Study

Yes, this study found that 20 minutes of 2.4 GHz Wi-Fi exposure more than doubled mercury release from amalgam fillings compared to unexposed teeth, increasing concentrations from 0.026 to 0.056 mg/L in artificial saliva.
The teeth with amalgam fillings were placed 30 cm (about 12 inches) from an active Wi-Fi router exchanging data with a laptop 20 meters away, simulating typical home or office exposure distances.
This study specifically tested 2.4 GHz Wi-Fi signals, the same frequency used by most home routers, smartphones, and Bluetooth devices. The researchers found statistically significant increased mercury release at this common frequency.
Just 20 minutes of Wi-Fi exposure was sufficient to significantly increase mercury release from dental amalgams. This suggests that even brief exposures to common wireless devices may enhance mercury toxicity.
Wi-Fi exposure caused approximately a 115% increase in mercury release, more than doubling the concentration from 0.026 mg/L in unexposed samples to 0.056 mg/L in Wi-Fi exposed amalgam fillings.