Sensitivity of the Root Canal Impedance to Electrode Displacement -In Vivo and In Vitro Measurement
- Topics:
- Healthcare Services
- Tags:
- Electrode,
- Measurement,
- Telecom & Utilities
- Source:
- Slovak Academy of Sciences
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Overview: Root canal impedance measurement was carried out in vivo on a series of patients and in vitro on a model (tooth dipped into a saline solution). Impedance was measured for several file tip displacements from apical foramen in the high frequency range. Comparison between in vivo and in vitro results was performed for the measured value of impedance and for the components of two element parallel equivalent circuit. It is possible to use model based measurements to draw some conclusions or test apex locator devices if the measurement is conducted on apex, when the file is displaced from apex difference towards in vivo measurement becomes significant.
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Format: PDF | Size: 140KB | Date: Sep 2003 | Pages: 4
