Examinando por Materia "Irrigantes radiculares"

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    Influence of four types of irrigants in determining the working length with three types of apex locators: in vitro study, Lima 2015
    (Universidad Privada Norbert Wiener, 2016-12-13) Reynoso Mejia, Roberto Francisco; Alexis Dominguez, John
    The objective of this in vitro research was to determine the influence of four different irrigating solutions on the accuracy of three different apex locators. Thirty single-rooted teeth that met the inclusion and exclusion criteria were used. The working length was determined electronically with the Raypex 6 (VDW, Germany), Endo EZE (Ultradent, USA), and RootOR (Metabiomed, Korea) apex locators in the presence of four different irrigating solutions: Physiological Saline, NaOCl 4%, EDTA 18%, and Chlorhexidine 2%. The actual working length was then determined using a stereomicroscope, placing the instrument tip at the apical foramen and subtracting 0.5mm using a calibrated ruler. A D'Agostino normality test was performed, followed by a score distribution in percentages, and a paired analysis using the t-test with the actual working length for the different experimental groups. Results: Raypex 6 and RootOR showed significant differences from the actual working length, with Raypex 6 showing values of 0.5080±0.4608 with saline, 0.5243±0.5124 with EDTA, 0.5483±0.5400 with Chlorhexidine, and 0.5750±0.5319 with NaOCl (p<0.001). RootOR showed values of 0.4300±0.5326 with saline, 0.4257±0.5788 with EDTA, 0.5063±0.5771 with Chlorhexidine, and 0.3570±1.168 with NaOCl (p<0.001). In contrast, EndoEZE showed no significant difference: 0.1973±0.5774 with saline, 0.2820±0.5055 with EDTA, 0.2927±0.5957 with Chlorhexidine, and 0.1960±0.7573 with NaOCl. Conclusion: The accuracy of Raypex 6, RootOR, and Endo EZE was not affected by the presence of different irrigants in the root canal. Endo EZE provided greater reliability in determining the working length when compared to Raypex 6 and RootOR.