Seyed Masoud Zargari - Corresponding Author : Department of Electrical Engineering , Islamic Azad University of Najaf Abad, Isfahan, Iran
Zahra Vahabi - Digital Signal Processing Research Lab, Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, ۶۵۱۴۸-۶۳۱۱۱, Iran
Rassoul Amirfattahi - Digital Signal Processing Research Lab, Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, ۶۵۱۴۸-۶۳۱۱۱, Iran

Up to now, several methods for the location of the root of the tooth and calculating the tooth decay detection is presented, such as the statistical use of the teeth length mean, using feeling of hand and radiography.The most important and most valuable developments in dentistry and endodontic, is the discovery of anesthesia and the use of X-ray and radiography.Common method to determine the root of tooth is to providing films; but in some cases may provide a suitable radiography is not feasible due to problems such as nausea, severe reaction, pregnancy, etc. On the other hand the dangers of radiation, particularly in children and radiological problems in people with disabilities, disadvantaged and our children on this thinking that if a device can determine the root caries detection, and effectively used instead of X-ray radiation levels reduce the radiation to the patient, will be valuable and this led to the idea of electronic instruments and determine root caries detection using impedance measurements

current source , dental decay, experimental measurement , impedance tomography , multi frequency , root position