On The Applicability Of Electrical Impedance Indices To
Characterize The Condition Of The Oral Mucosa
Author(s)
I. Lacković, Z. Stare & T. Protulipac
Abstract
On the applicability of electrical impedance
indices to characterize the condition of the oral
mucosa
I. Lackovid, Z. Stare & T. Protulipac
Faculty of Electrical Engineering and Computing,
University of Zagreb, Croatia
Abstract
In recent years efforts have been put on the development of objective,
noninvasive and inexpensive method to evaluate the condition of the oral
mucosa. It was demonstrated in some special cases (experimental conditions,
induced irritation reactions) that electrical impedance techniques have the
potential of fulfilling these requirements. The aim of our study was to compare
the information contained in baseline impedance values with the information
extracted by impedance indices proposed by Ollmar et al. [lo], and to evaluate
these indices as a data reduction techque. Therefore, we measured impedance
magnitude and phase in the range of 30 Hz to 1 MHz at ten different points of
the oral mucosa. Measurements were performed on a group of 20 subjects. From
impedance data at
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