Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems
ObjectivesThis study investigated the influence of glide path size and operating kinetics on the time to reach the working length and the fracture resistance of Twisted File (TF) and Endostar E3 files.Materials and MethodsA total of 120 mandibular single-rooted premolars were selected. Two methods o...
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Korean Academy of Conservative Dentistry
2020-05-01
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| Series: | Restorative Dentistry & Endodontics |
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| Online Access: | http://rde.ac/upload/pdf/rde-45-e22.pdf |
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| author | Tamilkumaran Ramyadharshini Inbaraj Anand Sherwood V Shanmugham Vigneshwar Prakasam Ernest Prince Murugadoss Vaanjay |
| author_facet | Tamilkumaran Ramyadharshini Inbaraj Anand Sherwood V Shanmugham Vigneshwar Prakasam Ernest Prince Murugadoss Vaanjay |
| author_sort | Tamilkumaran Ramyadharshini |
| collection | DOAJ |
| description | ObjectivesThis study investigated the influence of glide path size and operating kinetics on the time to reach the working length and the fracture resistance of Twisted File (TF) and Endostar E3 files.Materials and MethodsA total of 120 mandibular single-rooted premolars were selected. Two methods of kinetic motion (TF adaptive and continuous rotary motion) and file systems (TF and Endostar E3) were employed. The files were used in root canals prepared to apical glide path sizes of 15, 20, and 25. The time taken to reach the working length and the number of canals used before the instrument deformed or fractured were noted. Fractured instruments were examined with scanning electron microscopy.ResultsThe TF system took significantly more time to reach the working length than the Endostar E3 system. Both systems required significantly more time to reach the working length at the size 15 glide path than at sizes 20 and 25. A greater number of TFs than Endostar E3 files exhibited deformation, and a higher incidence of instrument deformation was observed in adaptive than in continuous rotary motion; more deformation was also observed with the size 15 glide path. One TF was fractured while undergoing adaptive motion.ConclusionsNo significant difference was observed between continuous rotary and adaptive motion. The TF system and adaptive motion were associated with a higher incidence of deformation and fracture. Apical glide path sizes of 20 and 25 required significantly less time to reach the working length than size 15. |
| format | Article |
| id | doaj-art-9fb3cb6fe3cc4ec79821ffc66f88bfd1 |
| institution | DOAJ |
| issn | 2234-7658 2234-7666 |
| language | English |
| publishDate | 2020-05-01 |
| publisher | Korean Academy of Conservative Dentistry |
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| series | Restorative Dentistry & Endodontics |
| spelling | doaj-art-9fb3cb6fe3cc4ec79821ffc66f88bfd12025-08-20T03:14:57ZengKorean Academy of Conservative DentistryRestorative Dentistry & Endodontics2234-76582234-76662020-05-01452e2210.5395/rde.2020.45.e22904Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systemsTamilkumaran Ramyadharshini0Inbaraj Anand Sherwood1V Shanmugham Vigneshwar2Prakasam Ernest Prince3Murugadoss Vaanjay4Department of Conservative Dentistry and Endodontics, CSI College of Dental Sciences, Madurai, TN, IndiaDepartment of Conservative Dentistry and Endodontics, CSI College of Dental Sciences, Madurai, TN, IndiaDepartment of Conservative Dentistry and Endodontics, CSI College of Dental Sciences, Madurai, TN, IndiaDepartment of Conservative Dentistry and Endodontics, CSI College of Dental Sciences, Madurai, TN, IndiaDepartment of Conservative Dentistry and Endodontics, CSI College of Dental Sciences, Madurai, TN, IndiaObjectivesThis study investigated the influence of glide path size and operating kinetics on the time to reach the working length and the fracture resistance of Twisted File (TF) and Endostar E3 files.Materials and MethodsA total of 120 mandibular single-rooted premolars were selected. Two methods of kinetic motion (TF adaptive and continuous rotary motion) and file systems (TF and Endostar E3) were employed. The files were used in root canals prepared to apical glide path sizes of 15, 20, and 25. The time taken to reach the working length and the number of canals used before the instrument deformed or fractured were noted. Fractured instruments were examined with scanning electron microscopy.ResultsThe TF system took significantly more time to reach the working length than the Endostar E3 system. Both systems required significantly more time to reach the working length at the size 15 glide path than at sizes 20 and 25. A greater number of TFs than Endostar E3 files exhibited deformation, and a higher incidence of instrument deformation was observed in adaptive than in continuous rotary motion; more deformation was also observed with the size 15 glide path. One TF was fractured while undergoing adaptive motion.ConclusionsNo significant difference was observed between continuous rotary and adaptive motion. The TF system and adaptive motion were associated with a higher incidence of deformation and fracture. Apical glide path sizes of 20 and 25 required significantly less time to reach the working length than size 15.http://rde.ac/upload/pdf/rde-45-e22.pdfadaptive motioncontinuous rotary motioncyclic fatigueglide pathnickel-titanium filestorsional fatigue |
| spellingShingle | Tamilkumaran Ramyadharshini Inbaraj Anand Sherwood V Shanmugham Vigneshwar Prakasam Ernest Prince Murugadoss Vaanjay Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems Restorative Dentistry & Endodontics adaptive motion continuous rotary motion cyclic fatigue glide path nickel-titanium files torsional fatigue |
| title | Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems |
| title_full | Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems |
| title_fullStr | Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems |
| title_full_unstemmed | Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems |
| title_short | Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems |
| title_sort | influence of glide path size and operating kinetics on time to reach working length and fracture resistance of twisted file adaptive and endostar e3 nickel titanium file systems |
| topic | adaptive motion continuous rotary motion cyclic fatigue glide path nickel-titanium files torsional fatigue |
| url | http://rde.ac/upload/pdf/rde-45-e22.pdf |
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