ArticleScientific reports2023
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Impact of minimally invasive root canal treatment on healing outcomes in a randomized clinical trial.Scientific reports · 2025Trial
- Nanoidentification in endodontics: Bibliometric analysis and comprehensive review on the basis of characterisation research by Nano-computed tomography imaging.The Japanese dental science review · 2025Review
- Effect of maintaining apical patency with a CM instrument on apical transportation and centering ability.Brazilian oral research · 2025Article
- Morphological Changes of the Apical Foramen in Curved Root Canals After Use of Different Heat Treated NiTi Rotary Files: A Scanning Electron Microscopy Study.European endodontic journal · 2024Article
- Procedural errors detected by cone beam tomography in cases with indication for retreatment:Restorative dentistry & endodontics · 2024Article
- Fast time-resolved micro-CT imaging of pharmaceutical tablets: Insights into water uptake and disintegration.International journal of pharmaceutics · 2023Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi-square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.