Electromagnetic Fields and Dental Metals: Emerging Risks and Clinical Implications

Understanding how EMF exposure interacts with metal restorations and what it means for modern dentistry

Abstract

The rapid expansion of wireless technology has introduced a new environmental variable into patient care: constant exposure to electromagnetic fields (EMFs) from WiFi, mobile devices, and 5G networks.

At the same time, millions of individuals worldwide still carry metal restorations—especially dental amalgam, which contains roughly 50% mercury by weight. Research shows that amalgam releases mercury vapor under heat and mechanical stress, and that galvanic currents can form when dissimilar metals interact in the mouth.

Emerging evidence suggests that EMFs may amplify these effects, accelerating corrosion, increasing mercury release, and intensifying patient symptoms.

This paper reviews the current research, examines clinical trends, and advocates for metal-free solutions as a forward-looking approach to biocompatible dentistry.

“The modern mouth is a conductive environment. In a wireless world, that matters more than ever.”
— Dr. John Johnson, DDS