This narrative review explores potential links between EMF exposure, metallic or mixed-metal dental restorations, and reported systemic and neurological symptoms despite normal diagnostic findings. It discusses hypothesized quantum-biological mechanisms (including spin dynamics and radical-pair mechanisms) that could mediate interactions between EMFs and dental metals. The authors conclude that the complexity of these interactions warrants more rigorous research and emphasize that a possible health-risk link should not be ignored.

This 2016 narrative review proposes that non-thermal microwave/lower-frequency EMFs act primarily through activation of voltage-gated calcium channels (VGCCs), with calcium channel blockers reported to block EMF effects. It summarizes animal, occupational, and epidemiological literature and reports that exposures from base stations, heavy mobile phone use, and wireless smart meters are associated with neuropsychiatric symptoms, sometimes with doseresponse patterns. The author concludes that multiple lines of evidence collectively support that non-thermal microwave EMF exposures can produce diverse neuropsychiatric effects including depression.