Electronic working length determination in primary teeth by ProPex and Digital Signal Processing.

The purpose of this study was to evaluate the accuracy of electronic apex locators Digital Signal Processing (DSP) and ProPex, for root canal length determination in primary teeth. Fifteen primary molars (a total of 34 root canals) were divided into two groups: Group I - without physiological resorption (n = 16); and Group II - with physiological resorption (n = 18). The length of each canal was measured by introducing a file until its tip was visible and then it was retracted 1 mm. For electronic measurement, the devices were set to 1 mm short of the apical resorption. The data were analysed statistically using the intraclass correlation coefficient (ICC). Results showed that the ICC was high for both electronic apex locators in all situations - with (ICC: DSP = 0.82 and Propex = 0.89) or without resorption (ICC: DSP = 0.92 and Propex = 0.90). Both apex locators were extremely accurate in determining the working length in primary teeth, both with or without physiological resorption. © 2010 The Authors. Australian Endodontic Journal © 2010 Australian Society of Endodontology.

Citation

Paulo Nelson-Filho, Marcela Pacífico Lucisano, Mário Roberto Leonardo, Raquel Assed Bezerra da Silva, Léa Assed Bezerra da Silva. Electronic working length determination in primary teeth by ProPex and Digital Signal Processing. Australian endodontic journal : the journal of the Australian Society of Endodontology Inc. 2010 Dec;36(3):105-8

Mesh Tags

PMID: 21091842

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