Muller A W, De Groot D A, Davidson C L
Department of Dental Materials Science, Faculty of Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam, The Netherlands.
J Oral Rehabil. 1989 May;16(3):271-7. doi: 10.1111/j.1365-2842.1989.tb01342.x.
An improved method for measuring the electrical potential of a metallic restoration is proposed and tested. Care was taken to avoid disturbing the restoration surface, hence it was not cleaned or dried. The probe tip was a gold-plated pin, insulated from the saliva by soft wax. The probe was pressed through the wax on the restoration just before measurement. An Ag/AgCl reference electrode was in contact with the saliva. The probe and the tip of the reference electrode were disposable.
