Preflaring effects on the accuracy of three electronic apex locators
Purpose: To compare the accuracy of three electronic apex locators (EALs) and evaluate the influence of cervical preflaring in them. Methods: The working length (WL) of thirty extracted human mandibular incisors was determined visually. All teeth were mounted in conducting medium and tested with: No...
| Authors: | , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2011 |
| Country: | Brasil |
| Institution: | Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
| Repository: | Revista odonto ciência (Online) |
| Language: | English |
| OAI Identifier: | oai:ojs.revistaseletronicas.pucrs.br:article/9806 |
| Online Access: | https://revistaseletronicas.pucrs.br/fo/article/view/9806 |
| Access Level: | Open access |
| Keyword: | Endodontics root canal preparation tooth apex Endodontia preparo do canal radicular ápice dental |
| Summary: | Purpose: To compare the accuracy of three electronic apex locators (EALs) and evaluate the influence of cervical preflaring in them. Methods: The working length (WL) of thirty extracted human mandibular incisors was determined visually. All teeth were mounted in conducting medium and tested with: Novapex, Mini Apex Locator and Propex II. The electronic WL was determined before and after preflaring with LA Axxess burs. Differences between the electronic and visual WL were calculated and analyzed by Friedman and Wilcoxon tests. Radiographs were taken using the electronic WL of each EAL and the distance between the instrument tip and the radiographic apical vertex was measured. This value was compared to a reference or ideal value (1 mm) by one-sample t test. Results: The Novapex was the most accurate EAL before and after the preflaring procedure, which was confirmed by the radiographic analysis. All EALs tested increased their accuracy after preflaring, but no significant difference was noted for the Novapex. Conclusion: The Novapex was more accurate compared to the Mini Apex and Propex II. Preflaring procedure was advantageous for all EALs. |
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