Current Issues of Pharmacy and Medical Sciences

AC-impedance spectroscopy and caries detection

Current Issues in Pharmacy and Medical Sciences Vol. 26, No. 3, Pages 344-346


Chair and Department of Conservative Dentistry and Endodontics, Medical University of Lublin, Poland

DOI: 10.12923/j.2084-980X/26.3/a.23



Many studies have shown that the accurate diagnosis before cavitation occurs could reduce need for drilling and filling. Among many techniques, measurement of electrical resistance (impedance) of dental tissues looks promising. The role of AC-impedance spectroscopy in caries detection is discussed and a relatively new device CarieScan PRO™ based on this phenomena is described. Changes in tooth mineral density detected by this tool as numerical and color codes are distinguished.

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caries detection, AC-impedance spectroscopy, CarieScan PRO™


  1. Ari T., Ari N.: The performance of ICDAS-II using low powered magnification with light-emitting diode head light and alternating current impedance spectroscopy device for detection of occlusal caries on primary molars. ISRN Dentistry, 2013.
  2. Christensen G.J.: New caries detection systems: reliable and accurate. Clinicians Report, 4, 2, 2011.
  3. Eldarrat A.H. et al.: Age-related changes in ac-impedance spectroscopy studies of normal human dentine. J. Mater. Sci: Mater. Med., 18, 1203, 2007.
  4. Eldarrat A.H., High A.S., Kale G.M.: Age-related changes in ac-impedance spectroscopy studies of nor mal human dentine: further investigations. J. Mater. Sci: Mater. Med., 21, 45, 2010.
  5. Huysmans M.C.D.N.J.M. et al.: Surface-specific electrical occlusal caries diagnosis: reproducibility, correlation with histological lesion depth, and tooth type dependence. Caries Res., 32, 330, 1998.
  6. Huysmans M.C.D.N.J.M. et al.: Temperature dependence of the electrical resistance of sound and carious teeth. J. Dent. Res., 79, 1464, 2000.
  7. Huysmans M.C.D.N.J.M. et al.: Impedance spectroscopy of teeth with and with out approximal caries lesions – an in vitro study. J. Dent. Res., 75, 1871, 1996.
  8. Kaczmarek U. et al.: Charakterystyka właściwości przewodnictwa elektrycznego powierzchni zębowych metodą spektroskopii impedancyjnej – badania wstępne. Czas. Stomat., 54, 559, 2001.
  9. Longbottom C., Huysmans M.C.D.N.J.M.: Electrical measurements for use in caries clinical trials. J. Dent. Res., 83, C76, 2004.
  10. Longbottom C. et al.: Detection of dental decaay and its extent using a.c. impedance spectroscopy. Nature Medi cine, 2, 235, 1996.
  11. Meller C. et al.: Predicting caries by measuring its activity using quantitative light-induced fluorescence in vivo: a 2- year caries in crementanalysis. Caries Res., 46, 361, 2012.
  12. Miyasaki M.A.: Building your practice with caries management and CarieS can PRO. Greater New York Dental Meeting, 27, 2011.
  13. Penkowski M. et al. Zastosowanie spektroskopii dielektrycznej do badania szkliwa ludzkich zębów. Ann. Acad. Med. Gedan., 35, 23, 2005.
  14. Pitts N. (edi tor): Detection, assessment, diagnosis and monitoring of caries. Monographs in Oral Sciences, vol. 21, Karger, Basel, 2009.
  15. Rochlen G.K., Wolff M.S.: Technological advances in caries diagnosis. Dent. Clin. N. Am., 55, 441, 2011.
  16. Tassery H. et al.: Use of new intervention dentistry technologies in caries management. Austr. Dent. J., 58, 40, 2013.
  17. Woźniak J. et al.: The reproducibility of tooth impedance spectroscopy measurements: an in vitro study. Dent. Med. Probl., 44, 11, 2007.
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