In recent decades, the number of materials used in medicine and dentistry has increased enormously. As a consequence, the number of health effects due to implant materials has increased as well. For that reason, the Academic Center for Dentistry Amsterdam (ACTA) founded in 2003 a referral clinic for patients suspected of having adverse reactions to dental restorative materials. To evaluate possible adverse health effects of metal exposure from dental restorative materials and other medical devices, it is essential to investigate other sources of possible exposure. Besides the well-known sources such as jewelry and coins, a relatively unknown source of daily exposure is contact with electric shaving devices. Such devices have rotary shaving heads or shaving foils, which can be made of metals with high allergenic potency. Moreover, they are frequently coated with precious metals.
Feilzer AJ, Muris J, Valentine-Thon E. Electrical Shavers as a Possible Risk Factor for Metal Exposure. Arch Dermatol. 2006;142(10):1361-1375. doi:10.1001/archderm.142.10.1361