A new device to test cutting efficiency of mechanical endodontic instruments

Rubini, Alessio Giansiracusa; Plotino, Gianluca; Al-Sudani, Dina; Grande, Nicola M.; Putortì, Ermanno; Sonnino, GianPaolo; Cotti, Elisabetta; Testarelli, Luca; Gambarini, Gianluca

doi:10.12659/msm.890119

Cited by 33 publications

(14 citation statements)

References 36 publications

(44 reference statements)

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“…This is in agreement with previous studies that showed that Reciproc instruments removed more dentin along the canal. [ 13 14 ] A sharp double cutting edge S-shaped geometry, smaller cross-sectional area,[ 15 ] and the dissimilarities between tapers of the master apical instruments may explain the greater cutting ability of Reciproc instruments. In the present study, the final taper was 0.08 at the apical 3 mm for Reciproc, 0.04 for S5 and TF.…”

Section: Discussionmentioning

confidence: 99%

Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals

Altunbaş

Kuştarcı

2015

Eur J Dent

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Objective:The purpose of this study was to evaluate the shaping ability of three nickel-titanium systems in simulated curved canals.Materials and Methods:Sixty simulated canals were prepared to apical size 25 with Reciproc, S5, and twisted file (TF) instruments. Standardized pre and postoperative images were taken using a digital camera, were superimposed and aberrations were recorded. Material removal was measured at five points: The canal orifice, halfway to the orifice, beginning of the curve, the apex of the curve, and end-point. The data were analyzed using Kolmogorov–Smirnov, analysis of variance, and Tukey tests.Results:The mean total width of the prepared canals in the Reciproc group was greater than the TF and S5 groups at halfway to the orifice, the beginning of the curve, the apex of the curve, and the end-point (P < 0.05). Mean absolute transportation was always <0.16 mm; however, significant differences occurred between the three systems at the orifice, halfway to the orifice, and the beginning of the curve (P < 0.05). TF created minimal absolute transportation at halfway to the orifice and the beginning of the curve, and greater absolute transportation at the orifice compared with the Reciproc and S5 instruments. However, the difference between the S5 and TF groups was not statistically significant at halfway to the orifice (P > 0.05).Conclusions:Under the conditions of the study, Reciproc produced widest canal shapes. TF provided more centered apical preparation and maintained the original canal shape well.

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Section: Discussionmentioning

confidence: 99%

Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals

Altunbaş

Kuştarcı

2015

Eur J Dent

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“…A cyclic fatigue testing device, which had been validated in previous studies, was used [18,19]. The device consists of a mobile platform connected to an electric handpiece that allows a precise and repeatable placement of the tested instruments inside the artificial root canal and a stainless steel block containing the artificial canals (Figure 2).…”

Section: Methodsmentioning

confidence: 99%

Role of the Flat-Designed Surface in Improving the Cyclic Fatigue Resistance of Endodontic NiTi Rotary Instruments

et al. 2019

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The aim of this study was to investigate the role of the flat-designed surface in improving the resistance to cyclic fatigue by comparing heat-treated F-One (Fanta Dental, Shanghai, China) nickel–titanium (NiTi) rotary instruments and similar prototypes, differing only by the absence of the flat side. The null hypothesis was that there were no differences between the two tested instruments in terms of cyclic fatigue lifespan. A total of 40 new NiTi instruments (20 F-One and 20 prototypes) were tested in the present study. The instruments were rotated with the same speed (500 rpm) and torque (2 N) using an endodontic motor (Elements Motor, Kerr, Orange, CA, USA) in the same stainless steel, artificial canal (90° angle of curvature and 5 mm radius). A Wilcoxon–Mann–Whitney test was performed to assess the differences in terms of time to fracture and the length of the fractured segment between the flat- and non-flat-sided instruments. Significance was set at p = 0.05. The differences in terms of time to fracture between non-flat and flat were statistically significant (p < 0.001). In addition, the differences in terms of fractured segment length were statistically significant (p = 0.034). The results of this study highlight the importance of flat-sided design in increasing the cyclic fatigue lifespan of NiTi rotary instruments.

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“…Studies have been conducted to analyze their properties, such as cutting efficiency during preparation 8 , preservation of the anatomical path of the root canal 9 , instrumentation time 10 , and production of dentin debris 11 . This study compared three factors (cutting capacity, preparation time, and occurrence of apical deviation) for preparation of canals with the WaveOne ® and Reciproc ® reciprocating systems.…”

Section: Discussionmentioning

confidence: 99%

Analysis of cutting capacity, preparation time, and apical deviation after instrumentation of artificial curved canals with the waveone ® and reciproc ® reciprocating systems

Bruschi

Boff

Melo

2017

RGO, Rev. Gaúch. Odontol.

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A new device to test cutting efficiency of mechanical endodontic instruments

Cited by 33 publications

References 36 publications

Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals

Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals

Role of the Flat-Designed Surface in Improving the Cyclic Fatigue Resistance of Endodontic NiTi Rotary Instruments

Analysis of cutting capacity, preparation time, and apical deviation after instrumentation of artificial curved canals with the waveone ® and reciproc ® reciprocating systems

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