Evidence map›Paper›PMID 33244706›Full record

ArticleClinical oral investigations2021

Microscopic and chemical evaluation of the filling quality of five obturation techniques in oval-shaped root canals.

Davide Mancino, Naji Kharouf, Mauro Cabiddu, Frédéric Bukiet, Youssef Haïkel

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Article in Clinical oral investigations, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  7. Access cavity in endodontics: Balancing precision, preservation, and clinical needs.Journal of conservative dentistry and endodontics · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Davide MancinoDepartment of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France.
Naji KharoufDepartment of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France.
Mauro CabidduDepartment of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Turin, Turin, Italy.
Frédéric BukietCNRS, ISM, Inst Movement Sci, Aix Marseille Université, Marseille, France. frederic.bukiet@univ-amu.fr.ORCID http://orcid.org/0000-0001-8125-5379
Youssef HaïkelDepartment of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe aim of this study was to assess the filling quality of five obturation techniques in oval-shaped root canals. MATERIALS AND

methodsA total of 212 mandibular first molars with one distal oval canal were selected. Distal canals, shaped with WaveOne Gold Primary, were randomly divided in five groups (n = 40) for obturation: continuous wave condensation, GuttaCore, Thermafil, single cone with AH plus, and single cone with BioRoot RCS. The proportions of gutta-percha-filled areas (GPFA), sealer-filled areas (SFA), void areas (VA), and the sealer/gutta tags into dentinal tubules at 4 mm and 2 mm from the apex were analyzed by an optical numeric microscope, SEM, and energy-dispersive X-ray (EDX). Data were then compared by Kruskal-Wallis one-way ANOVA on ranks (α = 0.05).

resultsAt 4 mm, a statistically significant higher GPFA and lower SFA were observed in the GuttaCore and Thermafil groups compared with the 3 other groups. A statistically significant lower VA was observed in the continuous wave condensation, GuttaCore, and Thermafil groups than in the two single-cone groups. At 2 mm, there were a statistically significant higher GPFA and lower SFA and VA in GuttaCore and Thermafil groups than in the 3 other groups. At the two levels investigated, the presence of gutta-percha tags was clearly demonstrated for GuttaCore and Thermafil groups; no tags were observed in the 3 other groups.

conclusionsObturation quality was overall improved in GuttaCore and Thermafil groups. CLINICAL RELEVANCE: Carrier-based techniques may significantly improve the filling quality compared to continuous wave condensation and single-cone technique. The single-cone technique might have inherent limitations especially in oval root canals regardless of the sealer used.

Indexed as

Root Canal Filling MaterialsRoot Canal ObturationDental Pulp CavityGutta-PerchaRoot Canal PreparationGutta-PerchaRoot Canal Filling MaterialsFilling qualityGutta-percha tagsRoot canalVoid areas

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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.