In vitro evaluation of root canal transportation after use of BT-Race files

Elemam, Ranya Faraj; Capelas, José António; Vaz, Mário; Viriato, Nuno; Pereira, Maria Lurdes; Azevedo, Álvaro

doi:10.1016/j.rpemd.2016.02.003

Cited by 5 publications

(7 citation statements)

References 23 publications

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“…Tip design of the file being non-screwing facilitates their introduction and removal without the application of excessive force and torque. [ 8 ]…”

Section: Discussionmentioning

confidence: 99%

Assessment of the impact of XP-Endo Finisher file on push-out bond strength of various endodontic sealers

Mohite,

Gupta,

Gupta

et al. 2024

Journal of Conservative Dentistry and Endodontics

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Background: An endodontic treatment is considered a success after thorough chemomechanical debridement coupled with obturating root canals in a concrete way thereby providing hermetic seal. Gutta-percha being nonadherent necessitates use of a sealer to achieve hermetic seal. Adequate adhesion of root canal sealer with gutta-percha core and radicular dentin ensures lack of apical leakage. Materials and Methods: Sixty extracted mandibular premolars with single root canal decoronated at cementoenamel junction were selected and randomly allocated to two groups (n = 30). Samples in Group 1 were prepared with BT Race file, while Group 2 samples were prepared with BT Race alongwith XP Endo file. Absorbent paper points were used for canal drying and samples were randomly divided into six subgroups. In Subgroup I, obturation was done with bio-ceramic (BC) sealer (Endosequence BC) and BC gutta-percha. In Subgroup II, resin-based (AH plus) sealer and gutta-percha were used. In Subgroup III, calcium hydroxide-based (Sealapex) sealer and gutta-percha were used. Sectioning of root samples was done perpendicularly into coronal, middle, and apical segments of 3 mm each. A universal testing machine was used for sample testing, in which push-out bond strength corresponded to the highest value obtained. Stereomicroscopic (×20) study of the samples determined the failure mode at dentin/sealer/main cone interface. Statistical Analysis: Analysis of variance and post hoc Tukey’s tests were used for data analysis. Results: Endosequence BC with XP-Endo files showed the highest mean push-out bond strength (16.31 MPa), whereas Sealapex without XP-Endo file had the lowest values (12.76 MPa). Mixed failure of adhesive and cohesive mode was observed for most samples. Conclusion: Adjunctive irrigation agitation technique utilizing XP-Endo Finisher facilitates biofilm eradication from difficult niches in root canals, thereby improving adhesion of sealer and subsequently the sealer bond strength.

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“…Tip design of the file being non-screwing facilitates their introduction and removal without the application of excessive force and torque. [ 8 ]…”

Section: Discussionmentioning

confidence: 99%

Assessment of the impact of XP-Endo Finisher file on push-out bond strength of various endodontic sealers

Mohite,

Gupta,

Gupta

et al. 2024

Journal of Conservative Dentistry and Endodontics

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“…A positive result means that transportation occurs mainly on the inner surface of the canal curvature and negative value means that transportation occurs mainly on the outer surface of the canal curvature. 11 The measurement of the degree of straightening from original canals was determined by Cunningham's method for S-shaped canals and Schneider's method for L-shaped canals.…”

Section: Methodsmentioning

confidence: 99%

Shaping Ability of WaveOne and ProTaper NEXT Rotary Nickel–titanium File Systems in Simulated Curved Root Canals

Ahmed¹,

Omari²,

Mostafa³

et al. 2017

IJPCDR

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Objective: The goals of a root canal therapy cannot be met without good access to the canal, which may in turn lead to procedural errors. This in vitro study was done to evaluate and compare the shaping ability of WaveOne ® (DENTSPLY Maillefer, Ballaigues, Switzerland) and ProTaper NEXT ® (DENTSPLY Maillefer, Ballaigues, Switzerland) rotary nickel-titanium (NiTi) files systems in simulated S-shaped and L-shaped root canals respectively. Materials and methods:Twenty simulated S-shaped and L-shaped root canals in resin blocks were randomly assigned into four groups according to the rotary system used (n = 40). The canals were prepared to a 25 tip size using WaveOne ® or ProTaper NEXT ® . Pre-and postoperative photos of each simulated canal were captured using a professional camera at standardized distance and position. The images were superimposed with the aid of Adobe Photoshop Elements 7.0 software. Ten lines at a distance of 1 mm each were selected from the superimposed canal images to measure central axis transportation and curvature straightening using a software program. The data recorded were analyzed using Statistical Package for the Social Sciences version 18.0 data analysis software. Results:The data analyzed showed that, in simulated S-shaped root canals, ProTaper NEXT ® preserved the best coronal curvature significantly (p < 0.05) compared with WaveOne ® , but both the file systems were able to straighten the curvature significantly. In simulated L-shaped root canals, ProTaper NEXT ® caused less central axis transportation than WaveOne ® at both curved and apical sections (p < 0.05) but produced more transportation at straight section. The canal curvature was well maintained with ProTaper NEXT ® rotary system. Conclusion: Among the two rotary file systems evaluated,ProTaper NEXT ® demonstrated superior shaping ability compared with WaveOne ® at curved sections in both S-shaped and L-shaped canals.

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“…9,10 Other file systems have limited information concerning this subject, such as the BT Race system. 11,12 The ProTaper Next system (PTN; Dentsply Maillefer, Ballaigues, Switzerland) is used with continuous rotation. It has five shaping instruments: X1 (17/0.04), X2 (25/0.06), Eur J Dent:2021;5:20-26 X3 (30/0.07), X4 (40/0.06), and X5 (50/0.06).…”

Section: Introductionmentioning

confidence: 99%

“… 9 10 Other file systems have limited information concerning this subject, such as the BT Race system. 11 12 …”

Section: Introductionmentioning

confidence: 99%

Apically Extruded Debris following Programmed Over Instrumentation of Curved Canals with Three Nickel Titanium Rotary Instruments

Yammine

Jabbour

2020

Eur J Dent

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Objectives This in vitro study aimed to compare the amount of mixed and dried debris extruded with three endodontic NiTi (nickel–titanium) systems at three levels beyond the major apical foramen. The null hypothesis is that there would be no differences between the different rotary systems in terms of apically extruded debris. Materials and Methods Forty-eight roots of human extracted molars with 20 to 40-degrees curvature were divided randomly into three groups (n = 16) instrumented with ProTaper Next, BT RaCe, and WaveOne Gold, respectively. Instrumentation was performed at the major foramen and over instrumented 0.5 mm, 1.0 mm and 1.5 mm beyond. Irrigation was performed with sodium hypochlorite. Apically extruded debris was collected. Results Comparison of mixed extruded debris (solution/debris)and dried debris according to group and level of instrumentation showed that WaveOne Gold at the foramen and ProTaper Next beyond the foramen (p < 0.0001) resulted in significantly less extruded debris than other files and within the four levels using repeated measures analysis of variance (p < 0.0001b). Conclusions All systems exhibit extruded debris during instrumentation but in different amounts.

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In vitro evaluation of root canal transportation after use of BT-Race files

Cited by 5 publications

References 23 publications

Assessment of the impact of XP-Endo Finisher file on push-out bond strength of various endodontic sealers

Assessment of the impact of XP-Endo Finisher file on push-out bond strength of various endodontic sealers

Shaping Ability of WaveOne and ProTaper NEXT Rotary Nickel–titanium File Systems in Simulated Curved Root Canals

Apically Extruded Debris following Programmed Over Instrumentation of Curved Canals with Three Nickel Titanium Rotary Instruments

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