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Electronic working length determination in primary teeth by ProPex and Digital Signal Processing.
Aust Endod J. 2010 Dec; 36(3):105-8.AE

Abstract

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 The length of each canal was measured by introducing a file until its tip was visible and then it was retracted 1 mm.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.

Authors+Show Affiliations

Department of Paediatric Clinic, Preventive and Community Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

21091842

Citation

Nelson-Filho, Paulo, et al. "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, vol. 36, no. 3, 2010, pp. 105-8.
Nelson-Filho P, Lucisano MP, Leonardo MR, et al. Electronic working length determination in primary teeth by ProPex and Digital Signal Processing. Aust Endod J. 2010;36(3):105-8.
Nelson-Filho, P., Lucisano, M. P., Leonardo, M. R., da Silva, R. A., & da Silva, L. A. (2010). 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, 36(3), 105-8. https://doi.org/10.1111/j.1747-4477.2009.00185.x
Nelson-Filho P, et al. Electronic Working Length Determination in Primary Teeth By ProPex and Digital Signal Processing. Aust Endod J. 2010;36(3):105-8. PubMed PMID: 21091842.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electronic working length determination in primary teeth by ProPex and Digital Signal Processing. AU - Nelson-Filho,Paulo, AU - Lucisano,Marcela Pacífico, AU - Leonardo,Mário Roberto, AU - da Silva,Raquel Assed Bezerra, AU - da Silva,Léa Assed Bezerra, Y1 - 2010/08/23/ PY - 2010/11/25/entrez PY - 2010/11/26/pubmed PY - 2011/3/8/medline SP - 105 EP - 8 JF - Australian endodontic journal : the journal of the Australian Society of Endodontology Inc JO - Aust Endod J VL - 36 IS - 3 N2 - 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. SN - 1747-4477 UR - https://www.unboundmedicine.com/medline/citation/21091842/Electronic_working_length_determination_in_primary_teeth_by_ProPex_and_Digital_Signal_Processing_ L2 - https://doi.org/10.1111/j.1747-4477.2009.00185.x DB - PRIME DP - Unbound Medicine ER -