Accuracy of the iPex multi‐frequency electronic apex locator in primary molars: an <i>ex vivo</i> study

Filho, Paulo Nelson; Romualdo, Priscilla Coutinho; Bonifácio, Kléber Cortês; Leonardo, Mário Roberto; Silva, R. A. B.; Silva, Léa Assed Bezerra

doi:10.1111/j.1365-2591.2010.01827.x

Cited by 24 publications

(35 citation statements)

References 20 publications

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“…However, the former refers to actual measurements made with the direct method or the estimated measure obtained from an initial radiograph (Mello-Moura et al, 2010), whereas the latter refers to the length at which chemo-mechanical preparation and sealing should be performed, usually reducing 1 mm from the RCL (Nelson-Filho et al, 2011). As an anatomical reference, RCL measurements obtained through the direct method are generally considered as the gold standard (Chougule, Padmanabhan, & Mandal, 2012;Mello-Moura et al, 2010;Subramaniam, Konde, & Mandanna, 2005;Oznurhan et al, 2014;Basso, Jeremias, Cordeiro, & Santos-Pinto, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Clinically, RCL estimates have been conventionally performed by pre-operative radiographic evaluation (Rodd et al, 2006;Neena et al, 2011;Nelson-Filho et al, 2011;Chougule, Padmanabhan, & Mandal, 2012;Saritha et al, 2012;Ahmad & Pani, 2015). However, anatomical variation in the apical foramen as well as superimposition of structures and periapical lesions may hinder appropriate RCL determination (Haffner, Folcwaczny, Galler, & Hicckel, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Direct Measurements of Root Canal Length in Primary Anterior Teeth for Educational and Clinical Purposes

Pintor¹,

Almeida²,

Antunes³

et al. 2018

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Background: The root canal length (RCL) estimates is an essential step for total endodontic therapy procedures. The aim of this study was to measure the RCL in a sample of extracted primary anterior teeth and compare the data obtained with the literature for educational and clinical purposes. Materials and methods: Seventy extracted primary anterior upper and lower teeth were selected according to the following inclusion criteria: absence of root resorption and/or internal root canal anatomy complications, and no previous root canal manipulation. The teeth were assigned to six groups: upper central incisors (UCI; n = 15), upper lateral incisors (ULI; n = 13), upper canines (UC; n = 20), lower central incisors (LCI; n = 6), lower lateral incisors (LLI; n = 3), and lower canines (LC; n = 13). RCL was measured by the direct method after insertion of a #15 K-file with a silicone stopper in the root canal until the root apex and measuring with a millimetre rule. Results: Mean RCL values (mm) obtained were UCI = 14.33 ± 1.69; ULI = 14.00 ± 1.63; UC = 16.07 ± 2.43; LCI = 15.41 ± 3.20; LLI = 15.00 ± 1.73; and LC = 16.38 ± 1.51. Conclusions: The RCL direct measurement method and the results obtained were in accordance with the literature reports and can be useful for educational purposes aiming at knowledge of dental anatomy and the clinical determination of root canal treatment viability and treatment of primary teeth, as RCL is one of the parameters for the indication/contra-indication of this therapy.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Direct Measurements of Root Canal Length in Primary Anterior Teeth for Educational and Clinical Purposes

Pintor¹,

Almeida²,

Antunes³

et al. 2018

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“…A literatura apresenta outros métodos para odontometria com resultados mais satisfatórios que a radiografia convencional, como a radiografia digital e o localizador apical 3,15,19,21 . Para viabilizar o uso dos localizadores apicais nos dentes decíduos artificiais, esse trabalho comparou as mensurações obtidas de cada dente pelo método visual e eletrônico assim como em outros estudos 3,[5][6][7][8][9][10][11][12][13][14][15][16] . Os localizadores apicais apresentam precisão na odontometria do comprimento de trabalho do sistema de canais radiculares em dentes permanentes [10][11][12]16-23 e em decíduos [3][4][5][6][7][8][9]14,24,25 .…”

Section: Análise Estatísticaunclassified

“…Os localizadores apicais podem prevenir a instrumentação e obturação além do ápice 4 . Os resultados desse trabalho apresentaram correlação entre as mensurações realizadas com o localizador apical e o método visual corroborando com estudos prévios 3,[5][6][7][8][9][10][11][12]14,[16][17][18][19][20][21][22][23][24][25] . Porém, o modelo experimental utilizando dentes artificiais decíduos apresentam limitações em relação às características estruturais dos dentes artificiais que são produzidos em resina sintética que pode influenciar nas características de umidade e dureza no interior dos canais radiculares quando comparados com a dentina radicular de dentes humanos.…”

Section: Gruposunclassified

“…Além disso, os localizadores apicais podem reduzir o número de tomadas radiográficas durante o tratamento endodôntico 2 . Estudos têm demonstrado que em dentes decíduos naturais o uso do localizador apical é viável e indicado [3][4][5][6][7][8] . O localizador apical Root ZX foi preciso na determinação do comprimento de trabalho em incisivos decíduos com ou sem reabsorção "in vivo" 9 .…”

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Viabilidade de Dentes Decíduos Artificiais para Mensuração Eletrônica do Comprimento de Trabalho dos Canais Radiculares

Andrade¹,

Silva²,

Imparato³

et al. 2013

Pesqui. bras. odontopediatria clín. integr.

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Objetivo: viabilizar a utilização de dentes decíduos artificiais com polpa e condutos radiculares em pesquisas "in vitro" com o uso do localizador apical Root ZX II. Método: foram selecionados 20 molares decíduos artificiais que apresentavam três condutos radiculares e não apresentavam trincas, fraturas ou defeitos de fabricação. Foi feita abertura coronária, acesso aos condutos, patência foraminal e mensuração dos canais radiculares por meio de método visual e eletrônico. A mensuração no método visual (G1-controle) foi realizada introduzindo a lima no ponto da cúspide de referência até a lima atingir o forame apical. No método eletrônico (G2-experimental), os dentes foram inseridos em alginato e a lima inserida no canal radicular até o localizador indicar o ápice. As mensurações foram realizadas em triplicata. As médias das medidas em milímetros foram submetidas ao teste de correlação de Pearson no programa Biostat 2.0 com valor de significância de 5%. Resultados: as medidas observadas pelo método eletrônico apresentaram correlação com os resultados obtidos pelo método visual (r Pearson = 0,9490; p = 0,0000). Conclusão: os dentes decíduos artificiais podem ser utilizados em pesquisas "in vitro" com o localizador apical Root ZX II.Dente artificial, Dente decíduo, Endodontia, Odontometria.Objective: To allow the use of artificial primary teeth with pulp and root canals for in vitro studies with the Root ZX II electronic apex locator. Method: Twenty artificial primary molars with three root canals and no cracks, fractures or fabrication defects were selected. After coronal opening, access to the canals was gained, foramen patency was checked and direct and electronic working length determination was performed. For direct visual working length determination (Group 1 -control), the file was introduced into the canal from the reference cusp until its tip was visible at the apical foramen. For the electronic working length determination (Group 2 -experimental), the teeth were embedded in alginate and the file was introduced into the canal until the electronica locator indicated the apex. The measurements were made in triplicate. The means (in mm) were subjected to Pearson's correlation coefficient test using the Biostat 2.0 software. The significance level was set at 5%. Results: The electronic measurements correlated with the direct visual measurements (r=0.9490; p=0.0000). Conclusion: Artificial primary teeth can be used for in vitro studies with the Root ZX II electronic apex locator.Deciduous tooth, Endodontic, Odontometry.

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Formulating a regression equation for determination of working length in primary molars using apex locators: a clinical study

Dandempally

Muppa

Duddu

et al. 2013

Eur Arch Paediatr Dent

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Accuracy of the iPex multi‐frequency electronic apex locator in primary molars: an ex vivo study

Abstract: In this laboratory study, the iPex accurately identified the apical foramen or the apical opening location for working length measurement in primary molar teeth.

Cited by 24 publications

References 20 publications

Direct Measurements of Root Canal Length in Primary Anterior Teeth for Educational and Clinical Purposes

Direct Measurements of Root Canal Length in Primary Anterior Teeth for Educational and Clinical Purposes

Viabilidade de Dentes Decíduos Artificiais para Mensuração Eletrônica do Comprimento de Trabalho dos Canais Radiculares

Formulating a regression equation for determination of working length in primary molars using apex locators: a clinical study

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