TY - JOUR
T1 - Accuracy of working length determination using 3 electronic apex locators and direct digital radiography
AU - Real, Denis Gonalves
AU - Davidowicz, Harry
AU - Moura-Netto, Cacio
AU - Zenkner, Clacir De Lourdes Londero
AU - Pagliarin, Claudia Medianeira Londero
AU - Barletta, Fernando Branco
AU - Moura, Abilio Albuquerque Maranho de
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/3
Y1 - 2011/3
N2 - Objectives The objectives of this study were to assess the accuracy of working length determination using 3 electronic apex locators and direct digital radiography and to compare the results with those obtained using the visual method (control measurement). Study design Twenty extracted human maxillary premolars were selected: 17 two-rooted and 3 single-rooted (total of 37 canals). Working length was measured using electronic apex locators Elements Diagnostic, Root ZX, and Just II. Subsequently, teeth were positioned in the alveolar bone of a dry skull and submitted to direct digital radiography. A variation of ±1 mm was considered as acceptable. Results were analyzed using the Wilcoxon and the χ2 tests. Results Results presented an accuracy of 94.6% for Elements Diagnostic, 91.9% for Root ZX, 73.0% for Just II, and 64.9% for direct digital radiography when considering the margin of ±1 mm in relation to the control measurement. Comparisons with the actual control measurements resulted in accuracy results of 13.51%, 13.51%, 10.10%, and 2.70%, respectively. Conclusions Root ZX and Elements Diagnostic are more accurate in determining working length when compared with Just II and Schick direct digital radiography.
AB - Objectives The objectives of this study were to assess the accuracy of working length determination using 3 electronic apex locators and direct digital radiography and to compare the results with those obtained using the visual method (control measurement). Study design Twenty extracted human maxillary premolars were selected: 17 two-rooted and 3 single-rooted (total of 37 canals). Working length was measured using electronic apex locators Elements Diagnostic, Root ZX, and Just II. Subsequently, teeth were positioned in the alveolar bone of a dry skull and submitted to direct digital radiography. A variation of ±1 mm was considered as acceptable. Results were analyzed using the Wilcoxon and the χ2 tests. Results Results presented an accuracy of 94.6% for Elements Diagnostic, 91.9% for Root ZX, 73.0% for Just II, and 64.9% for direct digital radiography when considering the margin of ±1 mm in relation to the control measurement. Comparisons with the actual control measurements resulted in accuracy results of 13.51%, 13.51%, 10.10%, and 2.70%, respectively. Conclusions Root ZX and Elements Diagnostic are more accurate in determining working length when compared with Just II and Schick direct digital radiography.
UR - http://www.scopus.com/inward/record.url?scp=79951500471&partnerID=8YFLogxK
U2 - 10.1016/j.tripleo.2010.10.033
DO - 10.1016/j.tripleo.2010.10.033
M3 - Article
C2 - 21310349
AN - SCOPUS:79951500471
SN - 1079-2104
VL - 111
SP - e44-e49
JO - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
JF - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
IS - 3
ER -