AI Article Synopsis
- The study aimed to assess how different irrigating solutions affect the accuracy of the Tri Auto ZX electronic apex locator during root canal procedures.
- A total of 140 teeth were extracted and categorized into seven groups based on the irrigating solution used, including saline, NaOCl, H2O2, chlorhexidine, EDTA, Ultracaine D-S, and a control group without any solution.
- Results showed that the measurements from the file tip to the apical constriction were significantly longer when using 0.9% saline, while the other solutions did not show a significant difference in accuracy.
Article Abstract
Aim: To determine the influence of various irrigating solutions on the accuracy of the electronic apex locator facility in the Tri Auto ZX handpiece.
Methodology: One hundred and forty teeth with single canals and mature apices, scheduled for extraction for either periodontal or prosthetic reasons in 76 patients were used. Following informed written consent local anaesthesia was administered, access cavities were prepared and pulp tissue removed. The teeth were then randomly divided into seven groups according to the irrigating solutions used. The root canal length measurements were completed using the Tri Auto ZX handpiece with automatic reverse function in the presence of one or other of the following solutions: 0.9% saline, 2.5% NaOCl, 3% H(2)O(2), 0.2% chlorhexidine, 17% EDTA, Ultracaine D-S or in the absence of an irrigating solution (control). Files were immobilized in the access cavity with composite resin. After extraction, the apical regions of the teeth were exposed and the file tips examined under a stereomicroscope. Distances between the file tips and the apical constriction were measured (mm) and analysed using a one-way anova and post hoc Tukey test.
Results: Mean distances from the apical constriction to the file tip were longer in the 0.9% saline group (P<0.05). There was no statistically significant difference on file tip position between the other solutions.
Conclusions: Tri Auto ZX gave reliable results with all irrigating solutions apart from in the presence of 0.9% saline.
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| http://dx.doi.org/10.1111/j.1365-2591.2007.01234.x | DOI Listing |
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