Skip to main content
Key Specialties
Cardiology Diabetology Endocrinology Gastroenterology Geriatrics and Gerontology Gynecology and Obstetrics Hematology Infectious Disease Internal Medicine Nephrology Neurology Oncology Pediatrics Respiratory Medicine Rheumatology Surgery
Congress Coverage
2024 ACC Congress 2023 ESMO Congress 2023 EASD Congress 2023 ERS Congress 2023 ESC Congress
Clinical Collections
Advances in Alzheimer’s

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.
ADVANCED SEARCH
Log in
Top
Odontology
Published in: Odontology 1/2016

01-01-2016 | Original Article

Comparative analysis of canal transportation and centring ability of three Ni–Ti rotary endodontic systems: Protaper®, MTwo® and Revo-S™, assessed by micro-computed tomography

Authors: Karen Vallaeys, Valérie Chevalier, Reza Arbab-Chirani

Published in: Odontology | Issue 1/2016

Login to get access

Abstract

The aim of this study was to use high-resolution micro-CT to evaluate the effects of three Ni–Ti rotary endodontic instruments, Mtwo® (VDW, München, Germany), ProTaper® (Dentsply-Maillefer, Ballaigues, Switzerland) and Revo-S™ (MicroMega, Besançon, France), on canal transportation and centring ratio. Fifty-four mesial roots of extracted mandibular molars with an angle of curvature of 25–35° were randomly divided into three groups of eighteen. Each group was instrumented with a previously unused Ni–Ti rotary system. The final instruments used were #30/0.05 taper (Mtwo®), F3 #30/0.09 apical taper (ProTaper®) and AS30 #30/0.06 taper (Revo-S™). Teeth were scanned before and after instrumentation using micro-computed tomography with a spatial resolution of 20 μm to measure volume and shaping changes. All images were filtered to improve signal-to-noise ratio. To determine the perimeter of roots and canals exactly, images were segmented in each slice with an edge detection process. Canal transportation and centring ratio were evaluated at 1, 3, 5 and 7 mm from the end of each root. The method developed by Gambill et al. was chosen. ANOVA was conducted with the significance threshold set at p < 0.05. No statistically significant differences were found among the three groups in terms of canal transportation or centring ratio at any level. These systems give similar results with regard to the tested shaping parameters. Under the tested conditions and within the limitations of this study, these systems were able to produce centred preparations of curved canals with minimal transportation.
Literature
1.
Walia H, Brantley W, Gerstein H. An initial investigation of the bending and torsional properties of a Nitinol root canal files. J Endod. 1988;14:346–51.PubMedCrossRef
2.
Haapasalo M, Shen Y. Evolution of nickel–titanium instruments from past to future. Endod Topics. 2013;29:3–17.CrossRef
3.
Pruett JP, Clement DJ, Carnes DL Jr. Cyclic fatigue testing of nickel–titanium endodontic instruments. J Endod. 1997;23:77–85.PubMedCrossRef
4.
Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. J Endod. 2004;30:559–67.PubMedCrossRef
5.
Plotino G, Testarelli L, Al-Sudani D, Pongione G, Grande NM, Gambarini G. Fatigue resistance of rotary instruments manufactured usinf different nickel–titanium alloys: a comparative study. Odontology. 2014;102:31–5.PubMedCrossRef
6.
American Association of Endodontists. Glossary of endodontic terms. 7th ed. Chicago: AAE; 2003.
7.
Schäfer E, Bürklein S. Impact of nickel–titanium of the root canal on clinical outcomes: a focused review. Odontology. 2012;100:130–6.PubMedCrossRef
8.
McSpadden JT. Mastering endodontic instrumentation. Chattanooga: Cloudland Institute; 2007.
9.
Peters OA, Schonenberger K, Laib A. Effects of four Ni–Ti preparation techniques on root canal geometry assessed by micro computed tomography. Int Endod J. 2001;34:221–30.PubMedCrossRef
10.
Freire LG, Gavini G, Sanches-Cunha R, Dos Santos M. Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography. Braz Oral Res. 2012;2:222–7.CrossRef
11.
Shen Y, Cheung G. Methods and models to study nickel–titanium instruments. Endod Topics. 2013;29:18–41.CrossRef
12.
Schneider SW. A comparison of canal preparations in straight and curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1971;32:271–5.CrossRef
13.
Gambill JM, Alder M, del Rio CE. Comparison of nickel–titanium and stainless steel hand-file instrumentation using computed tomography. J Endod. 1996;22:369–75.PubMedCrossRef
14.
Stern S, Patel S, Foschi F, Sherriff M, Mannocci F. Changes in centring and shaping ability using three nickel–titanium instrumentation techniques analysed by micro-computed tomography. Int Endod J. 2012;45:514–23.PubMedCrossRef
15.
Aguiar CM, Sobrinho PB, Teles F, Câmara AC, de Figueiredo AP. Comparison of the centring ability of the ProTaper™ and ProTaper Universal™ rotary systems for preparing curved root canals. Aust Endod J. 2013;39:25–30.PubMedCrossRef
16.
Weine FS. Endodontic therapy. 5th ed. St Louis: Mosby Co; 2006.
17.
Gergi R, Abou R, Jeily J, Sader J, Naaman A. Comparison of canal transportation and centering ability of Twisted files, Pathfile-ProTaper system and stainless steel hand K-files by using computed tomography. J Endod. 2010;36:904–7.PubMedCrossRef
18.
Peters OA, Laib A, Gohring TN, Barbakow F. Changes in root canal geometry after preparation assessed by high resolution computed tomography. J Endod. 2001;27:1–6.PubMedCrossRef
19.
Paqué F, Zehnder M, De-Deus G. Microtomography-based comparison of reciprocating single-file F2 ProTaper technique versus rotary full sequence. J Endod. 2011;37:1394–7.PubMedCrossRef
20.
Hashem A, Ghoneim A, Lutfy R, Foda M, Fatah Omar G. Geometric analysis of root canals prepared by four rotary Ni–Ti Shaping Systems. J Endod. 2012;38:996–1000.PubMedCrossRef
21.
Basrani B, Roth K, Sas G, Kishen A, Peters OA. Torsional profiles of new and used Revo-S Rotary Instruments: an in vitro study. J Endod. 2011;37:989–92.PubMedCrossRef
22.
Diemer F, Michetti J, Mallet JP, Piquet R. Effect of asymmetry on the behavior of prototype rotary triple helix root canal. J Endod. 2013;39:829–32.PubMedCrossRef
23.
Yang G, Yuan G, Yun X, Zhiu X, Liu B, Wu H. Effects of two nickel–titanium instrument systems, Mtwo versus ProTaper Universal, on root canal geometry assessed by micro-computed tomography. J Endod. 2011;37:1412–6.PubMedCrossRef
24.
Celik D, Tasdemir T, Er K. Comparative study of six rotary nickel–titanium systems and hand instrumentation for root canal preparation in severely curved root canals of extracted teeth. J Endod. 2013;39:278–82.PubMedCrossRef
25.
Schäfer E, Erler M, Dammaschke T. Comparative study on the shaping ability and cleaning efficiency of rotary Mtwo instrument. Part 2. Cleaning effectiveness and shaping ability severely curved root canals of extracted teeth. Int Endod J. 2006;39:203–12.PubMedCrossRef
26.
Plotino G, Grande NM, Falanga A, DiGiuseppe IL, Lamorgese V, Somma F. Dentine removal in the coronal portion of root canals following two preparation techniques. Int Endod J. 2007;40:852–8.PubMedCrossRef
27.
Soontag D, Ott M, Kook K, Stachniss V. Root canal preparation with the Ni–Ti systems K3, Mtwo and ProTaper. Aust Endod J. 2007;33:73–81.CrossRef
28.
Elsherief SM, Zayet MK, Hamouda IM. Cone-beam computed tomography analysis of curved root canals after mechanical preparation with three nickel–titanium rotary instruments. J Biomed Res. 2013;27:326–35.PubMedPubMedCentralCrossRef
29.
Arbab-Chirani R, Chevalier V, Arbab-Chirani S, Calloch S. Comparative analysis of torsional and bending behaviour through finite-element models of 5 Ni–Ti endodontic instrument. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011;111:115–21.PubMedCrossRef
Metadata
Title
Comparative analysis of canal transportation and centring ability of three Ni–Ti rotary endodontic systems: Protaper®, MTwo® and Revo-S™, assessed by micro-computed tomography
Authors
Karen Vallaeys
Valérie Chevalier
Reza Arbab-Chirani
Publication date
01-01-2016
Publisher
Springer Japan
Published in
Odontology / Issue 1/2016
Print ISSN: 1618-1247
Electronic ISSN: 1618-1255
DOI
https://doi.org/10.1007/s10266-014-0176-z

Other articles of this Issue 1/2016

Odontology 1/2016 Go to the issue

Original Article

Effect of 30 % hydrogen peroxide on mineral chemical composition and surface morphology of bovine enamel

Original Article

Matrix remodeling response of human periodontal tissue cells toward fibrosis upon nicotine exposure

Original Article

Clinical effect of locally delivered gel containing green tea extract as an adjunct to non-surgical periodontal treatment

Case Report

Anti-BP180-type mucous membrane pemphigoid: report of two cases

Original Article

Influence of surface treatments on bond strength of metal and ceramic brackets to a novel CAD/CAM hybrid ceramic material

Erratum

Erratum to: Cutting efficiency of nickel–titanium rotary and reciprocating instruments after prolonged use