Micro-Computed Tomographic Assessment of Microcrack Formation before and after Instrumentation of Curved Root Canals with Neoniti Rotary Files.

Zarean, Parichehr; Özcan, Mutlu; Zarean, Paridokht; Haghani, Seyed Omid; Jahromi, Maryam Zare; Al-Haj Husain, Nadin; Khabiri, Masoud (2022). Micro-Computed Tomographic Assessment of Microcrack Formation before and after Instrumentation of Curved Root Canals with Neoniti Rotary Files. Materials, 15(9) MDPI 10.3390/ma15093002

[img]
Preview
Text
materials-15-03002.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (674kB) | Preview

The aim of this study was to assess the microcrack formation of moderately and severely curved root canals following instrumentation with Neoniti rotary files using micro-computed tomography. This in vitro study evaluated 18 extracted sound mandibular molars with two separate mesial canals and foramina in two groups (n = 9) with 5-20° (moderate) and 20-40° (severe) root canal curvature. The number of microcracks in the root canal walls was counted at baseline by micro-CT. Subsequently, the root canals were instrumented with 0.20/0.06 v Neoniti files as single files with a torque of 1.5 Ncm and a speed of 400 rpm. The number of microcracks was counted again postoperatively on micro-CT images using Amira software. Statistical analysis was performed using the Shapiro-Wilk test, Levene's test and repeated-measures ANOVA (α = 0.05). The mean number of microcracks significantly increased postoperatively in both the moderately curved (11.59 ± 9.74 vs. 8.2 ± 7.4; p = 0.001) and the severely curved (13.23 ± 5.64 vs. 7.20 ± 5.94; p < 0.001) groups. However, the differences between the two groups were not significant (p = 0.668). Based on the results obtained, it can be stated that the instrumentation of moderately and severely curved root canals with Neoniti rotary files increases the number of microcracks. However, the higher degree of curvature does not necessarily translate to a higher number of microcracks after root canal instrumentation with this specific rotary system and methodological procedures.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Al-Haj Husain, Nadin

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1996-1944

Publisher:

MDPI

Language:

English

Submitter:

Pubmed Import

Date Deposited:

23 May 2022 08:09

Last Modified:

07 Aug 2024 15:45

Publisher DOI:

10.3390/ma15093002

PubMed ID:

35591336

Uncontrolled Keywords:

Neoniti curved root micro-computed tomography microcrack root canal therapy

BORIS DOI:

10.48350/170160

URI:

https://boris.unibe.ch/id/eprint/170160

Actions (login required)

Edit item Edit item
Provide Feedback