Evidence map›Paper›PMID 30367257›Full record

Trial reportClinical oral investigations2019

Effectiveness of calcium hydroxide-based intracanal medication on infectious/inflammatory contents in teeth with post-treatment apical periodontitis.

Marlos Barbosa-Ribeiro, Rodrigo Arruda-Vasconcelos, Adriana de-Jesus-Soares, Alexandre Augusto Zaia, Caio Cezar Randi Ferraz, José Flávio Affonso de Almeida, Brenda P F A Gomes

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical oral investigations, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
7.1field-weighted citation impact, top 2% of its field
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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

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  17. Mines of cytokine: A treasure trove in pulpal and periapical diseases.Journal of conservative dentistry and endodontics · 2024
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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

7 authors at 1 institution in 1 country.

Marlos Barbosa-RibeiroDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
Rodrigo Arruda-VasconcelosDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
Adriana de-Jesus-SoaresDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
Alexandre Augusto ZaiaDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
Caio Cezar Randi FerrazDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
José Flávio Affonso de AlmeidaDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil.
Brenda P F A GomesDepartment of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School - State University of Campinas - UNICAMP, Av. Limeira 901. Bairro Areião, Piracicaba, São Paulo, Brazil. bpgomes@fop.unicamp.br.ORCID http://orcid.org/0000-0002-8449-0646
Universidade Estadual de Campinas (UNICAMP) · BR

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 308162/2014-5Fundação de Amparo à Pesquisa do Estado de São Paulo 2015/23479-5
6 · The paper itself

Abstract

objectiveThe objective of this work was to investigate in vivo the effects of calcium hydroxide-based intracanal medication (ICM) on the levels of bacteria, pro-inflammatory cytokines (PICs), and matrix metalloproteinases (MMPs) in root canals and periradicular tissues of teeth with failure of the root canal treatment and apical periodontitis. MATERIALS AND

methodsTwenty infected root canals of single-rooted teeth were randomly assigned into two groups according to the irrigant used for chemomechanical preparation (CMP) (n = 10 per group): G1 - 2% chlorhexidine (CHX) gel and G2 - 6% sodium hypochlorite (NaOCl). Root canal contents were taken by using paper points before CMP (S1) and after 30 days of calcium hydroxide-based ICM (S2). Microbial reduction was calculated by means of colony-forming unit count (CFU/mL), with PICs and MMPs (pg/mL) being measured by using enzyme-linked immunosorbent assay (ELISA).

resultsCulturable bacteria (101.2 ± 79.2), PICs (IL-1β 1.2 ± 0.4 and TNF-α 8.8 ± 4.7), MMP-2 (803.7 ± 96.4), MMP-3 (453.9 ± 229.3), MMP-8 (245.9 ± 122.4), MMP-9 (129.4 ± 29.6), and MMP-13 (70.8 ± 12.8) were present in all S1 samples. After 30 days of ICM (S2), a 99.5% microbial reduction was observed, together with a significant reduction of PICs in all groups. Overall, it was observed a decrease in the levels of MMPs (S2), except MMP-13, which was found in increased levels after ICM (P < .05), independently of the groups.

conclusionsCalcium hydroxide-based intracanal medications have had a positive effect on the microbial reduction by decreasing the levels of PICs and MMPs. Both auxiliary chemical substances (i.e., 2% CHX and 6% NaOCl) presented similar effects when calcium hydroxide was used as intracanal medication. CLINICAL RELEVANCE: Teeth with failure of the root canal treatment and apical periodontitis, and consequently with high levels of bacteria, PIC, and MMP, may present a better prognosis after a 30 days of a calcium hydroxide-based ICM.

Indexed as

Root Canal PreparationAdultBacteriaCalcium HydroxideChlorhexidineColony Count, MicrobialCytokinesDental Pulp CavityHumansMatrix MetalloproteinasesMiddle AgedPeriapical PeriodontitisRoot Canal IrrigantsSodium HypochloriteCalcium HydroxideChlorhexidineCytokinesMatrix MetalloproteinasesRoot Canal IrrigantsSodium HypochloriteBacteriaCalcium hydroxideChlorhexidineCytokinesMatrix metalloproteinasesPost-treatment apical periodontitisSodium hypochlorite

Identifiers

PMID30367257
OpenAlexW2898360069

What OpenQuestion holds

Textmetadata
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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.