Comparison of the Accuracy of Three Apex Locators, Raypex5, Dentaport ZX, and Novapex, with Radiography in Determining the Length of the Mesiobuccal Canal of Mandibular First Permanent Molars: An in Vitro Study
Document Type : مقالههای پژوهشی
Authors
1 Assistant Professor, Department of Endodontics, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
2 Associate Professor, Department of Physical Education and Sport Sciences, School of Educational Sciences & Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3 General Dentist, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
10.22122/jids.v21.i1.0020
Abstract
Introduction: The aim of this study was to compare the Accuracy of three types of apex locators Novapex, Dentaport ZX and Raypex5 with radiography in determining the mesiobuccal canal length of the first mandibular permanent molar.
Materials & Methods: In this in vitro study, 72 extracted permanent mandibular first molar teeth with canal curvatures in the range of 20-30 degrees were selected. After disinfecting the teeth with 10% formalin solution, the teeth were stored in 0.5% chloramine T solution. An appropriate access cavity was prepared and pulp tissue was removed using a Barbed Broach. The actual canal length of each root was determined using a 15 K-file with a stapler. The root canal length obtained by Novapex, Dentaport ZX and Raypex5 apex locators was compared with radiography and the difference obtained from the above lengths was analyzed using Anova and T-Test at an error level of less than 0.05.
Results: The results showed that there was a significant difference between the mean canal length of the mandibular first molars in the apex locators of Raypex5, Novapex and Dentaport ZX with periapical radiography (P = 0.001). However, there was no significant difference between the mean canal length of mandibular first molar teeth in Raypex5, Novapex and Dentaport ZX apex locators with the actual canal length (P > 0.05).
Conclusion: There is no significant difference between the canal length measurements obtained by the different apex locators within the range of ± 0.5 mm at the apical foramen.
Materials & Methods: In this in vitro study, 72 extracted permanent mandibular first molar teeth with canal curvatures in the range of 20-30 degrees were selected. After disinfecting the teeth with 10% formalin solution, the teeth were stored in 0.5% chloramine T solution. An appropriate access cavity was prepared and pulp tissue was removed using a Barbed Broach. The actual canal length of each root was determined using a 15 K-file with a stapler. The root canal length obtained by Novapex, Dentaport ZX and Raypex5 apex locators was compared with radiography and the difference obtained from the above lengths was analyzed using Anova and T-Test at an error level of less than 0.05.
Results: The results showed that there was a significant difference between the mean canal length of the mandibular first molars in the apex locators of Raypex5, Novapex and Dentaport ZX with periapical radiography (P = 0.001). However, there was no significant difference between the mean canal length of mandibular first molar teeth in Raypex5, Novapex and Dentaport ZX apex locators with the actual canal length (P > 0.05).
Conclusion: There is no significant difference between the canal length measurements obtained by the different apex locators within the range of ± 0.5 mm at the apical foramen.
Keywords
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