In vivo accuracy of conventional and digital radiographic methods in confirming root canal working length determination by Root ZX

Orosco, Fernando Accorsi; Bernardineli, Norberti; Garcia, Roberto Brandão; Bramante, Clóvis Monteiro; Duarte, Marco Antônio Húngaro; Moraes, Ivaldo Gomes de

doi:10.1590/s1678-77572012000500005

Cited by 17 publications

(11 citation statements)

References 17 publications

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“…Electronic root canal length measurement devices (ERCLMDs) are considered efficient tools for this purpose 12,15,18,26,28 , achieving precision percentages upwards of 80% ex vivo 2,4,6,9,17-20,23-26 and in vivo 8,23,27,29,30 .…”

Section: Introductionmentioning

confidence: 99%

“…This device has been extensively evaluated, displaying precision rates greater than 90% 8,12,13,17,27,29 . Another popular ERCLMD is the Mini Apex Locator (SybronEndo, Glendora, USA), a compact device operating as a two frequency-based measurement system that emits an all-digital signal, which according to its manufacturers, leads to improved precision.…”

Section: Introductionmentioning

confidence: 99%

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Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Vasconcelos

Bueno²,

Luna-Cruz

et al. 2013

J. Appl. Oral Sci.

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Objective:The aim of this study was to evaluate, ex vivo, the precision of five electronic root canal length measurement devices (ERCLMDs) with different operating systems: the Root ZX, Mini Apex Locator, Propex II, iPex, and RomiApex A-15, and the possible influence of the positioning of the instrument tips short of the apical foramen.Material and Methods:Forty-two mandibular bicuspids had their real canal lengths (RL) previously determined. Electronic measurements were performed 1.0 mm short of the apical foramen (-1.0), followed by measurements at the apical foramen (0.0). The data resulting from the comparison of the ERCLMD measurements and the RL were evaluated by the Wilcoxon and Friedman tests at a significance level of 5%.Results:Considering the measurements performed at 0.0 and -1.0, the precision rates for the ERCLMDs were: 73.5% and 47.1% (Root ZX), 73.5% and 55.9% (Mini Apex Locator), 67.6% and 41.1% (Propex II), 61.7% and 44.1% (iPex), and 79.4% and 44.1% (RomiApex A-15), respectively, considering ±0.5 mm of tolerance. Regarding the mean discrepancies, no differences were observed at 0.0; however, in the measurements at -1.0, the iPex, a multi-frequency ERCLMD, had significantly more discrepant readings short of the apical foramen than the other devices, except for the Propex II, which had intermediate results. When the ERCLMDs measurements at -1.0 were compared with those at 0.0, the Propex II, iPex and RomiApex A-15 presented significantly higher discrepancies in their readings.Conclusions:Under the conditions of the present study, all the ERCLMDs provided acceptable measurements at the 0.0 position. However, at the -1.0 position, the ERCLMDs had a lower precision, with statistically significant differences for the Propex II, iPex, and RomiApex A-15.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Vasconcelos

Bueno²,

Luna-Cruz

et al. 2013

J. Appl. Oral Sci.

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“…Quando comparados com o método radiográfico, os estudos tem demonstrado que os LAEs apresentam a mesma precisão em determinar o CT 45 . Sendo que com relação ao método radiográfico, alguns estudos tem encontrado diferenças significativas ao comparar o método radigráfico digital e convencional 46 , e outros estudos apontam para a inexistência de diferenças significativas entre os dois métodos readiográficos combinados à odontometria eletrônica 47 .…”

Section: Discussionunclassified

Análise comparativa de diferentes métodos de odontometria

Leal¹,

Gomes²

2019

Arch Health Invest

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ResumoIntrodução: A odontometria constitui uma etapa fundamental para o sucesso do tratamento endodôntico, atualmente existem diversos métodos para a obtenção dessa medida. Objetivo: Realizar uma comparação entre o comprimento real do dente mensurado pelas técnicas de Ingle e eletrônica, utilizando os localizadores apicais eletrônicos Root ZX e Propex. Material e método: Foram selecionados 24 pacientes para participar do estudo, obtendo-se um grupo de vinte e quatro dentes unirradiculares, com rizogênese completa e diagnóstico de necrose pulpar, para realização das mensurações. Após o isolamento, acesso e neutralização do conteúdo séptico do canal radicular, todos os dentes foram submetidos às três técnicas de odontometria, obtendo-se assim o comprimento real do dente. Os dados foram submetidos a uma análise estatística descritiva. Após verificação da normalidade dos dados mediante emprego do teste de Shapiro-Wilk, realizou-se o teste ANOVA o qual demonstrou efeito significativo do tipo de método utilizado para obter os valores do comprimento real do dente. Resultados: A comparação par a par com ajuste de Bonferroni revelou que a média dos valores do comprimento real do dente obtidos por meio da técnica radiográfica de Ingle e do localizador Root ZX foram diferentes de maneira significativa da média dos valores obtidos usando o localizador Propex. Conclusão: Com base nos dados apresentados, conclui-se que o localizador apical Propex apresentou resultados diferentes dos obtidos pela técnica de Ingle e pelo localizador Root ZX. Descritores : Odontometria; Cavidade Pulpar; Ápice Dentário. Abstract Introduction: Odontometry is a fundamental step for successful endodontic treatment, there are currently several methods to obtain this measure. Objective: To perform a comparison between the real length of the tooth measured by the Ingle and electronic techniques, using Root ZX and Propex electronic apical locators. Material and method: Twenty-four patients were selected to participate in the study, obtaining a group of twenty-four unirradicular teeth, with complete rhizogenesis and diagnosis of pulp necrosis to perform the measurements. After the isolation, access and neutralization of the septic contents of the root canal, all teeth were submitted to the three odontometry techniques, thus obtaining the real length of the tooth. The data were submitted to a descriptive statistical analysis. After checking the normality of the data using the Shapiro-Wilk test, the ANOVA test was performed, which demonstrated a significant effect of the type of method used to obtain the actual tooth length values. Results: Comparison with Bonferroni adjustment showed that the mean values of real length of the tooth obtained using the radiographic technique of Ingle and the Root ZX locator were significantly different from the mean values obtained using the Propex locator. Conclusion: Based on the data presented, it was concluded that the apical locator Propex presented results different from those obtained by the Ingle technique and by the...

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“…Generally, the convention-al radiographic method has been used to determine the root canal length [12,14]. However, this method has some disadvantages, such as the superposition of ana-tomical structures and image dis-tortions, and the film processing time [15]. While producing imag-es, not a radiographic film but a sensor is used in the digital radio-graphic method.…”

Section: Introductionmentioning

confidence: 99%

Comparison of root canal length measurement methods in primary teeth

Koruyucu

Bayram

Kasımoğlu

et al. 2018

d3000

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Objectives: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth (in-vivo) and to compare the results with scanning electron microscopy measurements (ex-vivo). Materials and Methods: This study was conducted on 50 primary molar teeth. Standard endodontic access cavity preparations were prepared and the actual length was calculated by calibrated investigators. Working lengths were determined by using conventional radiography, RVG and apex locator in a total of 116 root canals. After the extraction of the teeth, each canal length was determined by using SEM. Data were analysed statistically by using Oneway Anova, Tukey HDS, Student t test and Bonferroni tests. Results: The mean root length measurements with conventional radiography were significantly higher than apex locator, RVG and SEM. The accuracy of apex locator and RVG were higher than conventional radiography in determining the working length in primary teeth. Conclusions: The electronic apex locators provide an acceptable level of accuracy in determining root canal length in primary teeth. Clinical Relevance: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth and,to compare the results with scanning electron microscopy measurements.

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In vivo accuracy of conventional and digital radiographic methods in confirming root canal working length determination by Root ZX

Cited by 17 publications

References 17 publications

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Análise comparativa de diferentes métodos de odontometria

Comparison of root canal length measurement methods in primary teeth

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