Comparison of shaping ability of RaCe and Hero Shaper instruments in simulated curved canals

Aydın, Cemal; İnan, Uğur; Yaşar, Şenay; Bulucu, Bilinç; Tunca, Yaşar Meriç

doi:10.1016/j.tripleo.2007.11.010

Cited by 31 publications

(33 citation statements)

References 26 publications

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“…The amount of resin removed from both the outer and inner sides of the canal in 1 mm steps were measured one dimensionally using the NetCAD (NetCAD 5.0 GIS for Windows, AK Engineering Computer Co. Ltd, Ankara, Turkey) program with an accuracy level of 0.01 mm. The first measuring point was 1 mm away from the artificial apical foramen, and the last measuring point was 10 mm from the apical end, resulting in 10 measuring points on the inner and outer sides of the canal, for a total of 20 measuring points 13 ( Figure 1). According to these measuring points in 34-35° curved canals, the curved part is 1 to 6 mm from the apex, and the straight part of the canal is 7 to 10 mm from the apex.…”

Section: Preparation Of Simulated Canalsmentioning

confidence: 99%

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The Shaping Ability of Five Different Nickel-Titanium Rotary Instruments in Simulated Root Canals

Göktürk¹,

Yücel²,

Sisman³

2015

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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The aim of this study was to compare the shaping ability of a recently introduced instrument (Revo-S) in comparison with the four current instruments (HeroShaper, Mtwo, ProTaper, RaCe) in simulated root canals. Material and methods: Nickel-Titanium systems (n=15 resin in each case) were used to prepare 34-35° curved and S-shaped simulated root canals in clear resin blocks. The width of resin removal was measured by comparing the pre-and postoperative images under a stereomicroscope. The amount and direction of transportation, the centering ability and the total amount of resin removal were determined. Canal aberration incidence, preparation time, and instrument deformation were also recorded. Results: In both canal types, the RaCe group prepared canals more rapidly (P < 0.05) and created no canal aberrations.The ProTaper Universal group was significantly slower than other groups (P < 0.05) for both canal types. The tapered canal form was obtained in the Mtwo, ProTaper Universal; and RaCe groups in 34-35° curved canals; and only the RaCe group in S-shaped canals. Some deformations but no instrument fractures were observed for HeroShaper, Mtwo, and Revo-S groups. Conclusion: RaCe rotary Nickel-Titanium instruments, probably do to their triangular cross-sectional shape with alternating cutting edges and sequence encompassing a high number of instruments, exhibited a better centrally shaping and fewer canal aberrations.

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Section: Preparation Of Simulated Canalsmentioning

confidence: 99%

“…The more tapered an instrument is, the longer is its pitch. 13 Revo-S (Micro-Mega) instruments (SC1 and SU) have an asymmetric cross-section design with an inactive tip. Only the SC2 instrument has a symmetric cross-section design.…”

Section: Introductionmentioning

confidence: 99%

The Shaping Ability of Five Different Nickel-Titanium Rotary Instruments in Simulated Root Canals

Göktürk¹,

Yücel²,

Sisman³

2015

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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“…The study has, therefore, concluded that the cross-sectional shape, a different type of the file movement in the canal or a smaller taper of the ProTaper Next file contributed to the smaller loss of the WL, as well as a smaller amount of the material removed in the apical area. According to Aydin et al [24], differences in the structure of files affect the cutting ability. These include the distance between the coils as well as the positive cutting angle.…”

Section: Discussionmentioning

confidence: 99%

Properties of Mechanical Endodontic Instruments and the Quality of the Simulated Canal Preparation

Koprowicz¹,

Łęski²,

Pawlicka³

2016

Dent. Med. Probl.

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“…[5][6][7][8][9][10] The limitations of each of these methods have been extensively discussed, 11,[20][21][22][23] encouraging continuing research into technologies that allow both quantitative and qualitative three-dimensional assessments of the root canal. To this end, the present study compared the µCT and the cross-sectioning methods used to quantify apical transportation after rotary instrumentation of curved canals at 2.0, 3.5, and 5.0 mm from the apex.…”

Section: Discussionmentioning

confidence: 99%

“…3,4 In addition to the advances made in rotary instrumentation, different methodologies have been proposed and used to assess the effects of endodontic instruments on canal transportation and on root canal anatomy. [5][6][7][8][9] Physical crosssectioning is one of the experimental models currently available to evaluate changes in root canal anatomy before and after instrumentation. 10 However, Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

Section: Introductionmentioning

confidence: 99%

Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography

et al. 2012

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Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography Abstract: The aim of this study was to compare two methods of assessing apical transportation in curved canals after rotary instrumentation, namely, cross-sections and micro-computed tomography (µCT). Thirty mandibular molars were divided into two groups and prepared according to the requirements of each method. In G1 (cross-sections), teeth were embedded in resin blocks and sectioned at 2.0, 3.5, and 5.0 mm from the anatomic apex. Pre-and postoperative sections were photographed and analyzed. In G2 (µCT), teeth were embedded in a rubber-base impression material and scanned before and after instrumentation. Mesiobuccal canals were instrumented with the Twisted File (TF) system (SybronEndo, Orange, USA), and mesiolingual canals, with the EndoSequence (ES) system (Brasseler, Savannah, USA). Images were reconstructed, and sections corresponding to distances 2.0, 3.5, and 5.0 mm from the anatomic apex were selected for comparison. Data were analyzed using Mann-Whitney's test at a 5% significance level. The TF and ES instruments produced little deviation from the root canal center, with no statistical difference between them (P > 0.05). The canal transportation results were significantly lower (0.056 mm) in G2 than in G1 (0.089 mm) (p = 0.0012). The µCT method was superior to the cross-section method, especially in view of its ability to preserve specimens and provide results that are more closely related to clinical situations.

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Comparison of shaping ability of RaCe and Hero Shaper instruments in simulated curved canals

Cited by 31 publications

References 26 publications

The Shaping Ability of Five Different Nickel-Titanium Rotary Instruments in Simulated Root Canals

The Shaping Ability of Five Different Nickel-Titanium Rotary Instruments in Simulated Root Canals

Properties of Mechanical Endodontic Instruments and the Quality of the Simulated Canal Preparation

Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography

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