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Multidimensional Analysis of Curved Root Canal Preparation Using Continuous or Reciprocating Nickel-titanium
Iussif Mamede-Neto1, Álvaro Henrique Borges2, Ana Helena Gonçalves Alencar1
1Department of Stomatologic Sciences, School of Dentistry, Federal University of Goiás, Goiânia, GO, Brazil.
The Open Dentistry Journal
|February 20, 2018
Summary
Reciproc files caused the most root canal transportation, while BioRaCe files demonstrated superior centering ability in mesiodistal and buccolingual directions. No system achieved perfect centering ability.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Root canal preparation aims to clean and shape the root canal system.
- Nickel-titanium (NiTi) rotary and reciprocating files are commonly used for root canal preparation.
- Evaluating file performance regarding transportation and centering ability is crucial for predictable outcomes.
Purpose of the Study:
- To compare the transportation and centering ability of different continuous and reciprocating NiTi endodontic file systems.
- To assess the effectiveness of various file systems in maintaining the original root canal anatomy.
Main Methods:
- Ninety-six mandibular molars were divided into 6 groups (n=16), each using a specific NiTi file system (ProTaper Next, ProTaper Gold, Mtwo, BioRaCe, WaveOne Gold, Reciproc).
- Root canals were prepared according to manufacturers' instructions.
- Cone beam computed tomography (CBCT) scans were taken before and after preparation to measure transportation and centering ability at defined points.
Main Results:
- Reciproc files exhibited the greatest mesiodistal and buccolingual transportation.
- BioRaCe files showed the best mesiodistal centering ability.
- Buccolingual centering ability was highest with BioRaCe and Mtwo files.
Conclusions:
- All tested file systems resulted in some degree of root canal transportation.
- No file system achieved ideal centering ability, indicating potential for procedural errors.
- Reciproc files induced significant transportation, while BioRaCe and Mtwo offered better control over canal centering.
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