Evidence map›Paper›PMID 33392803›Full record

ArticleClinical oral investigations2021

Does the ultrasonic activation of sealer hinder the root canal retreatment?

Ana Paula da Silva Machado, Antônio Caetano Câncio Couto de Souza, Tamille Lima Gonçalves, André Augusto Franco Marques, Lucas da Fonseca Roberti Garcia, Eduardo Antunes Bortoluzzi, Fredson Márcio Acris de Carvalho

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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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Special Issue "The State of the Art in Endodontics".Journal of clinical medicine · 2022
    Article
  5. Article
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

7 authors.

Ana Paula da Silva MachadoSuperior School of Health Sciences, State University of Amazonas, Manaus, AM, Brazil.
Antônio Caetano Câncio Couto de SouzaSchool of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil.
Tamille Lima GonçalvesSchool of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil.
André Augusto Franco MarquesSuperior School of Health Sciences, State University of Amazonas, Manaus, AM, Brazil.
Lucas da Fonseca Roberti GarciaDepartment of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, Florianópolis, Santa Catarina, 88040-900, Brazil. drlucas.garcia@gmail.com.ORCID http://orcid.org/0000-0002-8724-0124
Eduardo Antunes BortoluzziDepartment of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, Florianópolis, Santa Catarina, 88040-900, Brazil.
Fredson Márcio Acris de CarvalhoSuperior School of Health Sciences, State University of Amazonas, Manaus, AM, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate if the ultrasonic activation of sealer hinders the root canal retreatment. MATERIALS AND

methodsThirty mandibular premolars were prepared using the ProTaper Universal system (Dentsply) until the instrument F3 (0.30/0.09). The canals were distributed into 2 groups (n = 15), according to the filling technique: NUact group - sealer without ultrasonic activation + gutta-percha cones and Uact group - sealer with ultrasonic activation + gutta-percha cones. The canals were re-instrumented with Largo burs, followed by the instrument R50 (0.50/0.05) of the Reciproc system. The time required to perform re-instrumentation was recorded (s). The roots were longitudinally cleaved, and the total area of root canal and remaining filling material were quantified (%). The ANOVA test was applied to the data and complemented by Student's t test (P < 0.05).

resultsUact group had higher percentage of remaining filling material than NUact group (P < 0.05). When the root thirds were considered, there was statistically significant difference only for Uact group at the apical third (P < 0.05). There was no difference between groups regarding the time required to perform re-instrumentation (P > 0.05).

conclusionsUltrasonic activation of sealer leads to a higher percentage of remaining filling material attached to the root canal walls. However, it did not affect the retreatment time. CLINICAL SIGNIFICANCE: Ultrasonic activation increases sealer penetration into dentinal tubules, improving its resistance to dislodgement. However, there is no scientific evidence to prove if ultrasonic activation of sealer hinders its removal when root canal retreatment is necessary.

Indexed as

Root Canal Filling MaterialsRoot Canal ObturationDental Pulp CavityGutta-PerchaHumansRetreatmentRoot Canal PreparationUltrasonicsGutta-PerchaRoot Canal Filling MaterialsReciproc systemRoot canal retreatmentRoot canal sealerUltrasonic activation

Identifiers

PMID33392803

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Registered trials

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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.