ArticleBMC oral health2021
Shaping ability of 2Shape and NeoNiTi rotary instruments in preparation of curved canals using micro-computed tomography.
Article in BMC oral health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.
- Root and canal anatomy of mandibular first molars using micro-computed tomography: a systematic review.BMC oral health · 2023Pooled it
- Comparative Evaluation of Canal Centering Ability and Transportation of MiniKUT and TruNatomy Rotary File Systems in Curved Root Canals: A Cone-Beam Computed Tomographic Study.European journal of dentistry · 2026Article
- Machine learning prediction of canal transportation using micro-CT data.Bioinformation · 2026Article
- A micro- computed tomographic study of the anatomic danger zone in mesial roots of permanent mandibular first and second molars.BMC oral health · 2025Article
- In Vitro Research Methods Used to Evaluate Shaping Ability of Rotary Endodontic Files-A Literature Review.Dentistry journal · 2024Review
- Comparative evaluation of remaining dentin thickness using single file, two file, and multiple rotary file system - An in vitro CBCT study.Journal of conservative dentistry and endodontics · 2024Article
- Article
- Comparative evaluation of remaining dentin thickness, canal centering ability and apical deformity between ProFit S3 and Protaper gold - A nano CT study.The Saudi dental journal · 2024Article
- Influence of Coronal Flaring on the Shaping Ability of Two Heat-Treated Nickel-Titanium Endodontic Files: A Micro-Computed Tomographic Study.Journal of clinical medicine · 2023Article
- Comparative Evaluation of Canal Transportation and Centering Ratio in Curved Canals: A Study of Cone-beam Computed Tomography and Micro-computed Tomography.Iranian endodontic journal · 2023Article
- The Evaluation of Debris and Smear Layer Generated by Three Rotary Instruments Neo NiTi, 2Shape and Revo_S: AnIranian endodontic journal · 2023Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVarious systems of nickel-titanium (NiTi) instrument have long been commercially available. However, the preparation of narrow and curved root canals has always been challenging. The purpose of this study was to compare the shaping ability of two NiTi systems (2Shape and NeoNiTi) in severely curved root canals with different morphological patterns using micro-computed tomography (Micro-CT).
methodsA total of 22 human extracted permanent teeth of mandibular first molars, with the exact mesial angle of curvature of 25 and 35 degrees, according to Schneider's technique, were distributed randomly into two groups (group I: 2Shape, group II: NeoNiTi) based on the rotary system used (n = 22). The groups were subdivided into two subgroups corresponding to the angle of canal curvature (25° and 35°) (n = 11). Canals were scanned using Micro-CT pre- and post-preparation to assess the volume of dentin removed; canal transportation; and canal centering ratio at 3, 6, and 9 mm from the apex. The Mann-Whitney U test was utilized to determine any significant differences between the two systems. The level of statistical significance was set at p < 0.05.
resultsThere was no significant difference between the two groups in volume of dentin removed; canal transportation; and centering ability for 25° and 35° canal curvatures at 3, 6, and 9 mm from the apex (coronal, middle, and apical) thirds (p > 0.05). At the middle third, the NeoNiTi group demonstrated a statistically significant increase in volume of dentin removed for 35° canal curvatures compared to the 2Shape group.
conclusionWithin the limitation of our in vitro study, 2Shape and NeoNiTi systems with severely curved canals were confirmed to be relatively safe in preparation and to respect original canal anatomy. Nevertheless, NeoNiTi instruments produced more centered preparation and minimal canal deviation compared to the 2Shape system.
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