Clinical evaluation of the measuring accuracy of ROOT ZX in primary teeth

Kielbassa, Andrej M.; Müller, Ursula; Munz, Inka; Mönting, Jürgen Schulte

doi:10.1067/moe.2003.99

Cited by 71 publications

(106 citation statements)

References 19 publications

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“…Although radiography method is the most used, it presented limitation in detecting minor degrees of root physiological resorption 4,15 . Moreover, the underposition of the structures may difficult to predict the exact root length, and this method is subjective because is extremely dependent on the professional.…”

Section: Discussionmentioning

confidence: 99%

Performance in vitro of apex locators in determining root length in primary molars

Bertoli

Bruzamolin

Baratto‐Filho

et al. 2016

RGO, Rev. Gaúch. Odontol.

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ObjectiveThe aim of the study was to evaluate performance of digital radiographic and two electronic apex locators, Propex II and Root ZX in root canal length determination in primary molars. Methods primary molars were divided into two groups, G1 without root resorption and G2 with root resorption. The exams were performed using all methods by two experienced examiners, with 1-week interval. The gold standard was determined by visual examination. The methods were statistically analyzed regarding the values of reproducibility and correlated with the gold standard by Pearson´s correlation coefficient. Results The root canal length determination coincided with

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Section: Discussionmentioning

confidence: 99%

Performance in vitro of apex locators in determining root length in primary molars

Bertoli

Bruzamolin

Baratto‐Filho

et al. 2016

RGO, Rev. Gaúch. Odontol.

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“…This was the chosen protocol based on previous studies, which reported significant differences regarding LRC measurements when they were carried out by more than one operator, possibly leading to false results 7 . The difference between operators may be related to their ability and experience in using EALs or to limitations of the electronic device itself 7 .…”

Section: Discussionmentioning

confidence: 99%

“…The changes, which were related to their operating principle, have been made in order to achieve more accurate measurements. Thencefore, EALs have gained popularity in endodontics 7 . The latest EALs use the principle of alternating current impedance with the processing of two or more different frequencies [8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

“…Although numerous studies indicate an increase in the accuracy concerning the determination of the WL by different EALs 5,7,[22][23][24] , the fact that prior cervical preparation of root canals performed with different instruments might affect the accuracy of these devices has not yet been proved. Thus, this study was aimed at evaluating the influence of cervical preparation, using LA-Axxess (SybronEndo) and S1 and Sx ProTaper (Dentsply Maillefer), on the accuracy of Root ZX mini and Joypex 5.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the instrument used for cervical preflaring on the precision of 2 Eletronic Apex Locators

Guimarães

Tartari

Fernandes

et al. 2016

RGO, Rev. Gaúch. Odontol.

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ObjectiveThis study was aimed at evaluating the influence of cervical preflaring using LA-Axxes No. 1 bur (SybronEndo, Glendora, USA) or S1 and SX ProTaper files (Dentsply Maillefer, Ballaigues, Switzerland) Results McNemar's test (α<0.05) was used to detect differences in the accuracy of the EALs before and after each preflaring with different instruments, and to detect difference in accuracy among devices. No differences were found concerning the accuracy of the EALs (P > 0.05) after the cervical preflaring, regardless of the used instrument. ConclusionThe preflaring procedure increased the number of accurate measurements for both EALs, with statistical difference for Joypex 5 when the preflaring was performed with LA-Axxess. However, after the cervical preflaring, the EALs showed similar accuracy, regardless of the used instrument.Indexing terms: Dental instruments. Endodontics. Odontometry. RESUMO ObjetivoAvaliar a influência do preparo cervical utilizando a broca LA-Axxess nº 1 (SybronEndo, Glendora, EUA) ou os instrumentos ProTaper S1 e SX (Dentsply Maillefer, Ballaigues, Suíça) na precisão dos Localizadores Apicais Eletrônicos (LAEs): Root ZX mini (J. Morita Corporation, Tóquio, Japão) e Joypex 5 (Denjoy, Changsha, China). MétodosTrinta incisivos inferiores foram acessados e o comprimento do canal radicular (CCR) determinado com uma lima K #15 com o auxílio de um estereomicroscópio. Em seguida, os dentes foram distribuídos em dois grupos (n=15) referentes ao preparo cervical com LA-Axxess ou instrumentos ProTaper. Os dentes foram incluídos em alginato e o CCR determinado pelos LAEs antes e após o preparo cervical. Os dados foram classificados em: precisos, se a diferença na medida do CCR era ≤ 0,05 mm; e imprecisos, se a diferença era >0,5 mm ou estava além do CCR.Resultados O teste de McNemar (α<0.05) foi utilizado para detectar diferenças na precisão dos LAEs antes e após o preparo com os diversos instrumentos, e para detectar diferenças na precisão entre os aparelhos. Não foram identificadas diferenças na precisão entre os dois LAEs (P>0,05) após o preparo cervical, indiferente do instrumento utilizado. ConclusãoO preparo cervical aumentou o número de medições precisas dos LAEs, com diferença estatística para Joypex 5 após o uso da LA-Axxess, contudo os aparelhos apresentaram precisão similar após o preparo cervical, indiferente do instrumento utilizado.

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“…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 . Os resultados desse trabalho mostraram que os dentes decíduos artificiais não influenciaram na precisão do localizador apical.…”

Section: Análise Estatísticaunclassified

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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Clinical evaluation of the measuring accuracy of ROOT ZX in primary teeth

Cited by 71 publications

References 19 publications

Performance in vitro of apex locators in determining root length in primary molars

Performance in vitro of apex locators in determining root length in primary molars

Influence of the instrument used for cervical preflaring on the precision of 2 Eletronic Apex Locators

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

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