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Considerations in measuring the electrical potentials of metallic restorations in vivo
Author(s) -
Sutow E. J.,
Maillet W. A.,
Taylor J. C.,
Hanrahan K. L.,
Hall G. C.,
Harandi K.
Publication year - 2000
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.2000.00591.x
Subject(s) - amalgam (chemistry) , dentistry , electrode , biomedical engineering , materials science , metal , medicine , chemistry , metallurgy
Many variables are believed to affect the accurate measuring of metallic restoration electrical potentials. This study examined the effects of intra‐ versus extra‐oral location of the reference electrode, the type of metallic probe used to make contact with the restoration, and scratching and brushing of the restoration surface. Dental amalgam restorations were measured in 40 human subjects. Results showed that only the location of the reference electrode affected the central tendency of the potential. The study discusses the significance of some experimental variables in the accurate measuring of metallic potentials and the need to consider individual subject differences when statistically analysing for the central tendency of a sample.