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Javidi, M., Moradi, S., Rashed, R. and Raziee, L. (2009) In Vitro Comparative Study of Conventional Radiography and Root ZX Apex Locator in Determining Root Canal Working Length. The New York State Dental Journal, 75, 48-51.

has been cited by the following article:

• TITLE: Comparison of Two Electronic Root Canal Length Measurement Devices: The Differences between Ratio Two Impedance Frequencies and Multi Frequencies

  AUTHORS: Endang Suprastiwi, Ratna Meidyawati

  KEYWORDS: Electronic Root Canal Measurement Devices

  JOURNAL NAME: Open Journal of Stomatology, Vol.4 No.5, May 15, 2014

  ABSTRACT: Accuracy electronic root canal length measurement devices were important for root canal treatment. Aim: To evaluate and compare accuracy of the two electronic root canal length measurement devices; two frequencies impedance ratio and multi frequencies. Methods: Forty anterior teeth were sectioned on their cervical area. All samples were measured root canal length by radiographic. On the second phase, all the samples were measured by two frequencies impedance ratio and multi frequencies electronic devices. In the final phase, the teeth were split vertically and actual lengths were measured. All measurement by radiographic and electronic method was subtracted with actual length. Statistical analysis was performed using Chi-square and the Kolmogorov-Smirnov test. Results: Accuracy of the two frequencies impedance ratio 50% and multi frequencies 47.5%. No statistical significance between two frequencies impedance ratio and multi frequencies. Conclusions: There is no difference between ratio two impedance frequencies and multi frequencies.