scholarly journals Comparison of Canal Transportation and Centering Ability of ProGlider and WaveOne Gold Glider in Curved Canals

2020 ◽  
Vol 14 (04) ◽  
pp. 639-643
Author(s):  
Gabriela Behne Miró ◽  
Flávia Sens Fagundes Tomazinho ◽  
Edson Pelisser ◽  
Mariana Maciel Batista Borges ◽  
Marco Antônio Hungaro Duarte ◽  
...  
Keyword(s):  
Root Canal ◽  
File Systems ◽  
Root Canal Preparation ◽  
Volume Increase ◽  
Volume Variation ◽  
Glide Path ◽  
Significant Difference ◽  
Before And After ◽  
Canal Transportation ◽  
Level Of Significance

Abstract Objectives The aim of this study was to compare the volume variation and maintenance of the root canal position when using the ProGlider 16.02 (PG) and the WaveOne Gold Glider 15.02 (WOGG) file systems for glide path preparation. Materials and Methods Twenty-four moderately curved mesiobuccal canals of maxil-lary first molars were selected and randomly divided into two groups: PG and WOGG. The selected teeth were scanned using microtomography before and after root canal preparation to assess centralization and linear transport at 1, 3, 5, and 7 mm from the apical foramen. Statistical Analysis The data were analyzed with the Mann–Whitney U test. The level of significance was 5%. Results There were no significant differences in volume variation or root canal transport (p > 0.05). There was a significant difference in the centralization of the root canal at 3 mm from the foramen (p < 0.05). Conclusions WOGG and PG instruments presented similar results regarding the root canal volume increase and transport. WOGG caused higher decentralization at 3 mm from the apical foramen.

scholarly journals Comparison of Apical Transportation, Centering Ability and Cyclic Fatigue Resistance of Four Rotary File Systems

2015 ◽  
Vol 03 (01) ◽  
pp. 012-019
Author(s):  
Ankita Sood ◽  
Varun Jindal ◽  
Ajay Chhabra ◽  
Arvind Arora ◽  
Ankur Vats
Keyword(s):  
Fatigue Resistance ◽  
Fatigue Testing ◽  
File Systems ◽  
Cyclic Fatigue ◽  
Root Canal Preparation ◽  
Maxillary Molars ◽  
Apical Transportation ◽  
Significant Difference ◽  
Before And After ◽  
Canal Transportation

Abstract Aim: The aim of this study was to evaluate the apical transportation, centering ability and cyclic fatigue resistance of Hero shaper, Twisted file, Hyflex file and RACE rotary file systems. Methods: Mesiobuccal roots of eighty maxillary molars were divided into four groups and instrumented with Hero shaper, Twisted file, Hyflex file and RACE rotary file systems with a final apical size being 25/.04. Apical deviation was assessed by the radiographic platform method that enables obtaining superimposed images of the first and last instrument used in root canal preparation in the same radiograph. Apical transportation was measured in millimeters with the aid of the AUTOCAD 2008 software. Forty canals were sectioned at 7mm from the apex and stereomicroscopic Images were taken at 6x magnification before and after instrumentation for evaluation of centering ability. The cyclic fatigue testing was conducted with the instrumentrotating freely at angles of curvature of 45 degree. Total 10 instruments were tested in each group. The instruments were rotated at 400rpm using the X-smart motor (Dentsply, Maillefer) until fracture occurred. Results: There was no statistically significant difference between the four groups in apical transportation and centering ability whereas twisted files showed the maximum cyclic fatigue resistance. Conclusion: The different rotary file systems provided minimum canal transportation and the twisted file performed significantly better in terms of cyclic fatigue resistance.

scholarly journals Effect of glide path on transportation promoted by NiTi and M-Wire instruments

2018 ◽  
Vol 21 (1) ◽  
pp. 104
Author(s):  
Tatiane Pires Nogueira ◽  
Ellen Roberta Lima Bessa ◽  
Eduardo Da Costa Nunes ◽  
André Augusto Franco Marques ◽  
Lucas Da Fonseca Roberti Garcia ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Root Canal ◽  
Polyester Resin ◽  
Root Canal Preparation ◽  
Root Canals ◽  
Path Creation ◽  
Dental Instruments ◽  
Glide Path ◽  
Significant Difference ◽  
Before And After

<p><strong>Objective:</strong> To evaluate the effect of glide path creation on transportation promoted by NiTi and M-Wire instruments. <strong>Material and Methods: </strong>Sixty polyester resin blocks containing a simulated root canal were distributed into four groups (n=15), according to the protocols/systems used for root canal preparation: GPR group - glide path + Revo-S system; R group - no glide path + Revo-S system; GPPN group - glide path + ProTaper Next system and PN group - no glide path + ProTaper Next system. Root canals were photographed before and after preparation, and the images were superimposed to evaluate the transportation at the apical, middle and coronal thirds. The time spent to perform preparation was also measured (seconds). Data were submitted to the non-parametric Kruskal-Wallis test (p&lt;0.05) for statistical analysis. <strong>Results:</strong> In the apical third, there was no significant difference among groups (p&gt;0.05). GPR and R groups were similar in the middle third (p&gt;0.05). However, the transportation value in GPR group was statistically higher in comparison with GPPN and PN groups (p&lt;0.05). In the coronal third, GPR and R groups were similar (p&gt;0.05). Only R group presented significant difference in comparison with GPPN and PN groups (p&lt;0.05). There was no difference among groups about time spent to perform preparation (p&gt;0.05). <strong>Conclusion:</strong> None of the systems were capable of maintaining the original trajectory of the simulated root canal, and the glide path had no effect on the transportation promoted by instruments.</p><p><strong>Keywords</strong></p><p>Dental instruments; Endodontics; Root canal preparation.</p>

scholarly journals The comparison of the rate of apical displacement in curved root canals using Neoniti and RaCe files by cone beam CT Scan

2019 ◽  
Vol 22 (3) ◽  
pp. 313-320
Author(s):  
Mostafa Godiny ◽  
Nafiseh Nikkerdar ◽  
Reza Hatam ◽  
Leila Shahsavand ◽  
Atefeh Khavid
Keyword(s):  
Root Canal ◽  
Cone Beam Ct ◽  
File Systems ◽  
Root Canals ◽  
Mandibular Molar ◽  
Significant Difference ◽  
Before And After ◽  
Molar Teeth ◽  
Canal Transportation ◽  
The Mean

Background and aim: There is a high prevalence of root canal transportation in the teeth with the curve. effect of root canal transportation on the success of root canal therapy of tooth is negative and there is no study about comparing RaCe and Neoniti files in root canal transportation. The aim of this study is assessment and comparing two different RaCe and Neoniti files to determine transportation error in various parts of root using CBCT assessment and comparing them with each other.Method: In this experimental study 50 extracted mandibular molar teeth selected. Teeth were divided randomly into two groups i.e. 25 teeth threated with RaCe file (first group) and 25 teeth threated with Neonitu files (second group). in this study to measurement  thickness of dentine in the scan ,before and after instrumentation at the same time we used axial images that obtain from NNT viewer 6.1.0 software .Findings: in the first group ,The mean tooth transportation  in 5 mm of apex  was 0.15 and  in the second group The mean tooth transportation  in 5 mm of apex  was 0.18 mm that there was no statistically significant difference in canal transportation  between RaCe and Neoniti files in five millimeters distant from apex area (p=0.492) and the mean transportation from 9 mm of apex was 0.14 in the second group that There was no statistically significant difference in canal transportation between two  groups (p=0.911).Conclusion: The results indicated that there was no significant difference of tooth transportation between two file systems in 3, 9, 7, 5 and 11mm from the apex and both files were safe.  

scholarly journals Comparative Evaluation of Root Canal Transportation by Three NiTi Single-File Systems in Curved Canals: A Cone Beam Computed Tomography Study

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Eshaghali Saberi ◽  
Narges Farhad-Mollashahi ◽  
Shima Bijari ◽  
Mohammad Daryaeian
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Ex Vivo ◽  
File Systems ◽  
Cone Beam ◽  
Single File ◽  
Significant Difference ◽  
Canal Transportation ◽  
Level Of Significance

Introduction. This study is aimed at evaluating root canal transportation in the mesiobuccal canal of mandibular first molars prepared with One Shape, Reciproc, and M-One nickel titanium (NiTi) single-file rotary systems using cone beam computed tomography (CBCT). Materials and Methods. In this ex vivo study, CBCT scans of 45 extracted human mandibular first molars with 20–40° curvature were obtained. The teeth were randomly divided into three groups (n=15) for preparation of the mesiobuccal canal with One Shape, Reciproc, and M-One rotary systems according to the manufacturers’ instructions. CBCT scans were obtained again after canal preparation. Changes caused by preparation in the coronal, middle, and apical thirds were determined on CBCT scans and analyzed using the Kruskal–Wallis test at P≤0.05 level of significance. Results. No significant difference was noted in the amount of canal transportation among the three groups (P>0.05). M-One caused greater transportation in the apical third compared with Reciproc and One Shape, and One Shape caused greater transportation in the coronal third compared with other groups, although its magnitude was less than 0.3 mm. Conclusion. Reciproc, One Shape, and M-One are not significantly different in terms of canal transportation.

scholarly journals Geometric Analysis of Maxillary First Premolar Prepared by Two Nickel-Titanium Rotary Instruments

2014 ◽  
Vol 15 (2) ◽  
pp. 174-180 ◽  
Author(s):  
Dina Al-Sudani ◽  
Majed Almalki ◽  
Saad Al-Shahrani ◽  
Michael Ahlquist
Keyword(s):  
Cross Sections ◽  
Root Canal ◽  
Geometric Analysis ◽  
Microcomputed Tomography ◽  
Nickel Titanium ◽  
Rotary Instruments ◽  
Significant Difference ◽  
Before And After ◽  
Canal Transportation ◽  
Shaping Ability

ABSTRACT Aim The present study was conducted with the aim of evaluating and comparing the shaping ability of two Nickel-titanium rotary instruments, with two disparate design features, on root canal geometry of extracted human maxillary first premolars using microcomputed tomography. Study design Twenty four bifurcated maxillary first premolars were divided into two groups and embedded in a rubber-based impression material. Both groups were submitted to microcomputed tomography before and after canal preparation (buccal and palatal) with either ProFile Vortex or Revo-S rotary instruments. Images were reconstructed and cross-sections corresponding to a distance 1, 2, 3, 4, 5, 6, and 7 mm from the anatomical apex were selected for canal transportation analysis. Volume changes were also measured. Results The degree and direction of canal transportation were non-significant for both instruments. Statistically significant differences were observed only between levels in the buccal canal in both groups. There was no significant difference between the two rotary systems in regards to the volume of dentin removed. Conclusion Our findings showed that ProFile Vortex and Revo-S instruments respected the original root canal anatomy and behaved similarly. ProFile Vortex rotary systems produced with innovative process were concluded to shape the upper maxillary premolar by leading minimal canal transportation, similar to Revo-S, rotary systems produced from traditional process. How to cite this article Al-Sudani D, Almalki M, Al-Shahrani S, Ahlquist M. Geometric Analysis of Maxillary First Premolar Prepared by Two Nickel-Titanium Rotary Instruments. J Contemp Dent Pract 2014;15(2):174-180.

scholarly journals A microcomputed tomography evaluation of the shaping ability of three thermally-treated nickel-titanium rotary file systems in curved canals

2018 ◽  
Vol 47 (1) ◽  
pp. 325-334 ◽  
Author(s):  
Zhuwei Huang ◽  
Jingjing Quan ◽  
Jia Liu ◽  
Wen Zhang ◽  
Xiaolei Zhang ◽  
...  
Keyword(s):  
Root Canal ◽  
File Systems ◽  
Microcomputed Tomography ◽  
Nickel Titanium ◽  
Root Canal Preparation ◽  
Root Canals ◽  
Before And After ◽  
Shaping Ability ◽  
Thermally Treated

Objective To evaluate the shaping ability of three thermally-treated rotary nickel-titanium (NiTi) systems including ProTaper Next (PTN), HyFlex™ CM (HFCM) and HyFlex™ EDM (HFEDM) during root canal preparation in simulated root canals. Methods A total of 45 simulated root canals were divided into three groups ( n = 15) and prepared with PTN, HFCM or HFEDM files up to size 25. Microcomputed tomography (microCT) was used to scan the specimens before and after instrumentation. Volume and diameter changes, transportations and centring ratios at 11 levels of the simulated root canals were measured and compared. Results HFEDM caused significantly greater volume increases than HFCM and PTN in the entire root canal and in the apical and middle thirds. HFCM removed the least amount of resin in the coronal third compared with HFEDM and PTN. Overall, HFCM caused significantly less transportation in the apical 2 mm and was better centred than PTN in the apical 3 mm. Conclusion Under the conditions of this study, all systems prepared curved canals without significant shaping errors and instrument fracture. PTN and HFCM cut less resin than HFEDM. HFCM stayed centred apically and cut the least material coronally.

scholarly journals Multidimensional Analysis of Curved Root Canal Preparation Using Continuous or Reciprocating Nickel-titanium Instruments

2018 ◽  
Vol 12 (1) ◽  
pp. 32-45 ◽  
Author(s):  
Iussif Mamede-Neto ◽  
Álvaro Henrique Borges ◽  
Ana Helena Gonçalves Alencar ◽  
Marco Antonio Hungaro Duarte ◽  
Manoel Damião Sousa Neto ◽  
...  
Keyword(s):  
Root Canal ◽  
Nickel Titanium ◽  
Reference Points ◽  
Multidimensional Analysis ◽  
Cone Beam ◽  
Root Canal Preparation ◽  
Root Canals ◽  
Computed Tomography Scans ◽  
Before And After ◽  
Canal Transportation

Objective: To evaluate transportation (T) and centering ability (CA) of root canal preparations using continuous or reciprocating nickel-titanium endodontic files. Materials and Methods: Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divided into 6 groups (n=16) according to the rotary file used: 1. ProTaper Next; 2. ProTaper Gold; 3. Mtwo; 4. BioRaCe; 5. WaveOne Gold; 6. Reciproc. Root canals were prepared according to manufacturer’s instructions. Cone beam computed tomography scans were obtained before and after root canal preparation. Measurements were made at six different reference points: 2, 3 and 4 mm from the apex and 2, 3 and 4 mm below furcation in different directions. Results: The greatest Mesiodistal (MD) Transportation (T) was found for Reciproc files (p<0.05), and the greatest buccolingual (BL) T, for Reciproc, ProTaper Gold and ProTaper Next files (p<0.05). The greatest Mesiodistal (MD) Centering Ability (CA) was found for BioRaCe files (p<0.05), and the greatest Buccolingual (BL) CA, for BioRaCe and Mtwo files (p<0.05). Conclusion: All systems produced root canal transportation. No file system achieved perfect CA of root preparation. Reciproc files had the greatest MD T and BL T. BioRaCe files had the greatest MD CA, whereas BL CA was similar for BioRaCe and Mtwo files.

Evaluation of the Effect of Different Root Canal Preparation Techniques in Primary Teeth Using CBCT

2018 ◽  
Vol 42 (4) ◽  
pp. 250-255 ◽  
Author(s):  
Shahid M Shaikh ◽  
Mousumi Goswami
Keyword(s):  
Root Canal ◽  
Primary Teeth ◽  
File System ◽  
Second Primary ◽  
Preparation Technique ◽  
Root Canal Preparation ◽  
India Ink ◽  
Group I ◽  
Significant Difference ◽  
Canal Transportation

Objectives: The purpose of this in vitro study was to compare and evaluate the cleaning and shaping efficiency of the rotary Ni-Ti, sonic and conventional file systems for root canal preparation in primary teeth under CBCT. Study Design: Seventy five maxillary and mandibular first and second primary molars were divided into three groups of 25 teeth each, according to the canal preparation technique: Group I Rotary file system, Group II Sonic file system, Group III Conventional K files. Canals were scanned using an i-CAT CBCT scanner before and after preparation to evaluate their shaping efficiency. Root canal transportation and centering ratio were evaluated at coronal, middle and apical thirds. The cleaning efficiency was evaluated by the extent of India ink removal from the canal walls under stereomicroscope. The collected data was subjected to statistical analysis. Results: Nickel–Titanium (Ni-Ti) rotary system caused less canal transportation and had better centering ability. Sonic system showed better shaping at the apex, and wider at coronal end. Conventional K-files removed more dentin at coronal than in middle and apex and efficiently cleaned the root canals. There were no significant difference in cleaning and shaping efficiency between Rotary system, Sonic system & Conventional K file system. Conclusion: Rotary instrumentations could be considered as an efficient alternative to conventional hand preparation as it respects the original canal anatomy with no aberrations or resulting failures.

scholarly journals Apical Transportation of Mesiobuccal Canals of Maxillary Molars Following Root Canal Preparation with Two Rotary Systems and Hand Files: A Cone-Beam Computed Tomographic Assessment

2019 ◽  
Author(s):  
Pegah Sarraf ◽  
Nazanin Kiomarsi ◽  
Farrokh Haj Taheri ◽  
Behrang Moghaddamzade ◽  
Fatemeh Dibaji ◽  
...  
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Cone Beam ◽  
Root Canal Preparation ◽  
Computed Tomographic ◽  
Maxillary Molars ◽  
Apical Transportation ◽  
Significant Difference ◽  
Canal Transportation

Objectives: This study aimed to compare the transportation of the mesiobuccal canal of maxillary molars following root canal preparation with HyFlex CM (HCM) and Edge Taper Platinum (ETP) rotary systems and stainless steel (SS) hand files using cone-beam computed tomography (CBCT). Materials and Methods: This in-vitro study was performed on 48 maxillary molars in three groups of 16. The teeth were mounted in acrylic blocks, and root canals were prepared using HCM in group 1 (up to #30/0.06), ETP in group 2 (up to F3/0.06), and SS hand files in group 3 (up to #30). CBCT scans were taken before and after root canal preparation. The amount of canal transportation was measured at 0, 3, 6, and 9mm from the apex. Data were analyzed using Kruskal-Wallis and Mann-Whitney tests. Results: The difference in canal transportation at 0 and 6mm from the apex was significant between the HCM and ETP groups (P=0.031 and 0.023) but none of the systems showed any significant difference with hand files at 0- and 6-mm levels (P=0.10, 0.56, 0.22, and 0.50), respectively. At 3mm from the apex, no significant difference was noted among the groups (P=0.30). At the 9-mm level, the amount of canal transportation was not significantly different between HCM and ETP (P=0.83) but they showed significant differences with hand files (P<0.001). Conclusion: ETP and HCM caused less canal transportation at the curvature of the mesiobuccal canal of maxillary molars compared to hand files. ETP showed superior efficacy in root canal preparation compared to HCM.

scholarly journals Effects of different glide path techniques on the amount of extruded debris and preparation times during root canal preparation

2020 ◽  
Vol 14 (3) ◽  
pp. 187-190
Author(s):  
Damla Kırıcı ◽  
Simay Koç ◽  
Alper Kuştarcı
Keyword(s):  
Root Canal ◽  
Root Canal Preparation ◽  
Root Canals ◽  
Glide Path ◽  
Working Length ◽  
Significant Difference ◽  
Molar Teeth ◽  
Group 3 ◽  
Group 2 ◽  
Post Hoc

Background.This study purposed to compare the effect of new single glide path files on extruded apical debris and total preparation times during root canal preparation with the WaveOne Gold system. Methods. Thirty-six extracted human lower molar teeth with mesiobuccal canal curvature angles of 25‒35° were randomly splited to three groups. In group 1, the glide path was created with WaveOne Gold Glider (WGG) file at working length (WL); in group 2, the glide path was created with ProGlider file (PG); in group 3, the glide path was not performed. In all the groups, the root canals were shaped with WaveOne Gold Primary (WOG) reciprocating files at WL. Apically extruded debris during instrumentation was picked up into pre-weighed Eppendorf tubes. The weight of the dry extruded debris was calculated by subtracting the pre- and post-instrumentation weights of the tubes in each group. The total time elapsed during the canal preparation was calculated with a chronometer. The data were analyzed using one-way ANOVA and post hoc Tukey tests. Results. The WGG/WOG group extruded significantly fewer debris than the WOG and PG/WOG groups (P<0.05). There was no significant difference between the WOG and PG/WOG groups (P>0.05). The WGG/WOG and PG/WOG groups were significantly faster than the WOG group. Conclusion. The amount of debris extruded apically significantly diminished when conventional WGG was implemented before using WOG. The total preparation time significantly diminished when the WOG file was used in combination with reciprocating and rotary glide path preparation techniques.

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