Bergman M, Ginstrup O, Nilner K
Scand J Dent Res. 1978 Mar;86(2):135-45. doi: 10.1111/j.1600-0722.1978.tb00619.x.
Galvanic currents within the oral cavity may have harmful effects on biological tissues. In the present work 16 patients with different kinds of oral and other discomfort and pain which they attributed to oral galvanism were investigated. The potential and polarization of each metal restoration within reach of a platinum probe were measured versus a reference electrode. A recording of these measured values permits a calculation of the currents which may pass between the teeth. A control group of patients with no subjective symptoms of galvanism in the oral cavity was also investigated. The results of the electrochemical measurements showed that conditions for oral galvanism existed within the individuals of the patient group as well as within the control group. One remarkable observation was that the metallic restorations often consisted of different electrically isolated areas with different electrochemical properties. This and other factors influencing oral galvanism are discussed.
口腔内的电流可能会对生物组织产生有害影响。在本研究中，对16名患有各种口腔及其他不适和疼痛（他们认为这些症状归因于口腔电流）的患者进行了调查。相对于参比电极，测量了铂探针所能触及的每个金属修复体的电位和极化情况。记录这些测量值可以计算出可能在牙齿之间通过的电流。还对一组无口腔电流主观症状的患者进行了调查。电化学测量结果表明，患者组个体以及对照组个体中均存在口腔电流的情况。一个值得注意的观察结果是，金属修复体通常由具有不同电化学性质的不同电隔离区域组成。本文讨论了这一点以及其他影响口腔电流的因素。
