Evidence map›Paper›PMID 38643087›Full record

Trial reportBMC oral health2024

Postoperative pain after single-visit root canal treatments in necrotic teeth comparing instruments' kinematics and apical instrumentation limits - a prospective randomized multicenter clinical trial.

Ricardo Machado, Guilherme Moreira, Daniel Comparin, Arthur Pimentel Barroso, Jaqueline Nascimento, Caio Cézar Randi Ferraz, Sérgio Aparecido Ignácio, Lucas da Fonseca Roberti Garcia, Rodrigo Rodrigues Amaral, David Shadid and 1 more

Abstract readRandomized Controlled TrialMulticenter Study
In one paragraph

Trial report in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Trial
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  6. Influence of number of visits on the outcome of endodontic treatment.Journal of conservative dentistry and endodontics · 2024
    Review
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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

11 authors.

Ricardo MachadoCollege of Dentistry, Department of Restorative Sciences, Division of Endodontics, Health Sciences Center, University of Oklahoma - COD/OUHSC, Oklahoma City, Oklahoma, USA. ricardo-machado@ouhsc.edu.
Guilherme MoreiraClinical Practice Limited to Endodontics, Francisco Beltrão, Paraná, Brazil.
Daniel ComparinClinical Practice Limited to Endodontics, Cunha Porã and Francisco Beltrão, Paraná, Brazil.
Arthur Pimentel BarrosoPiracicaba Dental School, Department of Restorative Dentistry, Division of Endodontics, State University of Campinas - FOP/UNICAMP, Piracicaba, São Paulo, Brazil.
Jaqueline NascimentoSchool of Dentistry, Department of Endodontics, Pontifical Catholic University of Paraná - PUC/PR, Curitiba, Paraná, Brazil.
Caio Cézar Randi FerrazPiracicaba Dental School, Department of Restorative Dentistry, Division of Endodontics, State University of Campinas - FOP/UNICAMP, Piracicaba, São Paulo, Brazil.
Sérgio Aparecido IgnácioSchool of Dentistry, Department of Statistics, Pontifical Catholic University of Paraná - PUC/PR, Curitiba, Paraná, Brazil.
Lucas da Fonseca Roberti GarciaDepartment of Dentistry, Division of Endodontics, Federal University of Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brazil.
Rodrigo Rodrigues AmaralCollege of Medicine and Dentistry, James Cook University - JCU, Smithfield, Cairns, Australia.
David ShadidCollege of Dentistry, Department of Restorative Sciences, Division of Endodontics, Health Sciences Center, University of Oklahoma - COD/OUHSC, Oklahoma City, Oklahoma, USA.
Ulisses Xavier da Silva NetoSchool of Dentistry, Department of Endodontics, Pontifical Catholic University of Paraná - PUC/PR, Curitiba, Paraná, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis prospective randomized multicenter clinical trial (PRMCT) investigated postoperative pain after single-visit root canal treatments in teeth affected by pulp necrosis (PN), and asymptomatic apical periodontitis (AAP) (with apical radiolucent areas) or normal periradicular tissues (without apical radiolucent areas) comparing different instruments' kinematics and apical instrumentation limits.

methodsBefore chemomechanical preparation, 240 patients/teeth were randomly distributed into four groups (n = 60) according to the instruments' kinematics (rotary or reciprocating) and apical instrumentation limits (with or without intentional foraminal enlargement [IFE]). After that, specimens were submitted to the same irrigation and obturation techniques, and the patients were referred to undergo the definitive restorations. No medication was prescribed, but the patients were instructed to take either paracetamol (750 mg every 6 h for three days) or ibuprofen (600 mg every 6 h for three days) in pain cases. Postoperative pain incidence and levels were assessed at 24-, 48-, and 72 h following treatment completion according to a verbal rating scale (VRS) following a score. The Kolmogorov-Smirnov test was applied to assess the normality of the data. Mann-Whitney U, Chi-square, Friedman's ANOVA, and Friedman's multiple 2 to 2 comparison tests were employed to identify potential significant statistical differences among the variables in the study groups (P < .05).

resultsSignificant statistical differences were only observed among the groups considering tooth, periradicular status, and the occurrence of overfilling (sealer extrusion) (P < 0.00). Patients with teeth instrumented through rotary kinematics and without IFE experienced lower rates of postoperative pain; however, this difference was relevant only at 24 h (P < 0.05).

conclusionsPostoperative pain was lower after using a rotary file system (Profile 04) inserted up to the apical constriction (AC). However, this finding was just statistically meaningful at 24 h.

trial registrationThis PRMCT was approved by the Human Research Ethics Committee of the Paranaense University - UNIPAR, Francisco Beltrão, PR, Brazil (CAAE. 46,774,621.6.0000.0109) on 02/09/2021. It was registered at The Brazilian Registry of Clinical Trials - ReBEC (RBR-3r967t) on 01/06/2023, was performed according to the Principles of the Helsinki Declaration and is reported following the Consolidated Standards of Reporting Trials Statement.

Indexed as

Dental Pulp CavityRoot Canal PreparationBiomechanical PhenomenaHumansPostoperative PainProspective StudiesApical instrumentation limitAsymptomatic apical periodontitisInstruments' kinematicsIntentional foraminal enlargementPostoperative painRoot canal treatment

Identifiers

PMID38643087
PMCPMC11032596

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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.