Collection of studies and information about nickel allergy or nickel sensitivity in the dental field
Nickel titanium wires are often used for orthodontics.
Nickel ion release is higher when a cell phone is used a lot. The saliva concentration of nickel in patients with nickel titanium wires or other orthodontic appliances containing nickel is time-dependent on cell hone use. This is due to the radio-frequency electromagnetic fields the phones emit. Ali Saghiri AJO June 2015
Old porcelain fused to metal crowns often contained nickel. We also use nickel titanium files for root canals, but that really should have no effect.