| Autor: |
Al-Abady, Ali Munshid, Al- Zaka, Iman Mohammed |
| Předmět: |
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| Zdroj: |
Indian Journal of Forensic Medicine & Toxicology; Jul-Sep2021, Vol. 15 Issue 3, p1395-1406, 12p |
| Abstrakt: |
Background: Creating a continuous tapered shape while preserving the original root canal geometry particularly in the narrow and curved root canals represents a significant challenge for clinicians. New Niti instruments have been established with new metallurgical and heat treatment, these may play an important role in retaining the original shape of the canal with less mishaps.The study was aimed to assess and compare the transportation of thecanal and centering ability of three Niti rotary instruments:, EdgeOne Fire, ProTaper Next and TruNatomy filesat different points of simulated curved canals. Material and method: 60 simulated curved canals were randomly distributed into 3 groups of 20 canals for each group. 1st group was instrumented with ProTaper Next x² file, 2nd group was instrumented with EdgeOne primary file, and 3rd group was instrumented with TruNatomy prime file. The quantity of the removed resin was calculated at 5 levels: 5 mm from the beginning of the canal; The Half-way from the beginning of the curve to the beginning of the canal; the point of deviation of the canal from the long axis of coronal portion which called the beginning of the curvature; the point of intersection of long axes of the coronal and apical portions of the canal which is named the apex of the curve; the end point of the canal. Pre and post-instrumentation images were taken in standardized method.Assessment of canal preparation was done using Photoshop and Digimizer software. The Data were analyzed utilizing Shapiro- Wilk test and Kolmogorov-Smirnov test then Kruskal Wallis test and Mann-Whitney U test were used by SPSS version 21 software. Conclusion: TruNatomy group showed the best result regarding to the canal transportation as well as centering ability compared to the other file systems evaluated in this study. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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