RESEARCH ARTICLE


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



Iussif Mamede-Neto1, *, Álvaro Henrique Borges2, Ana Helena Gonçalves Alencar3, Marco Antonio Hungaro Duarte4, Manoel Damião Sousa Neto5, Carlos Estrela3
1 Department of Stomatologic Sciences, School of Dentistry, Federal University of Goiás, Goiânia, GO, Brazil
2 School of Dentistry, University of Cuiabá, Cuiabá, MT, Brazil
3 Department of Stomatologic Sciences, School of Dentistry, Federal University of Goiás, Goiânia, GO, Brazil
4 Departament of Dentistry, Endodontics and Dental Material, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
5 Departament of Restaurative Dentistry, Dental School, University of São Paulo, Ribeirão Preto, SP, Brazil

Article Information


Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 32
Last Page: 45
Publisher ID: TODENTJ-12-32
DOI: 10.2174/1874210601812010032

Article History:

Received Date: 16/07/2017
Revision Received Date: 26/11/2017
Acceptance Date: 04/12/2017
Electronic publication date: 29/1/2018
Collection year: 2018

Article Metrics

CrossRef Citations:
4
Total Statistics:

Full-Text HTML Views: 526
Abstract HTML Views: 184
PDF Downloads: 89
ePub Downloads: 48
Total Views/Downloads: 847
Unique Statistics:

Full-Text HTML Views: 291
Abstract HTML Views: 128
PDF Downloads: 82
ePub Downloads: 42
Total Views/Downloads: 543



Creative Commons License
© 2018 Mamede-Neto et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Federal University of Goiás, Department of Stomatologic Sciences, Praça Universitária s/n, Setor Universitário, CEP 74605-220, Goiânia, GO, Brazil; Tel: 5562 984159973; Fax: 5562 984159973; E-mail: dr_mamede@hotmail.com


Abstract

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.

Keywords: Canal transportation, Centering ability, Cone beam computed tomographic, Endodontics, Nickel-titanium instruments, Mesiobuccal root canals.