Evidence map›Paper›PMID 35499657›Full record

ArticleClinical oral investigations2022

Final irrigation protocols affect radicular dentin DMP1-CT expression, microhardness, and biochemical composition.

Cristina Retana-Lobo, Tatiana Ramírez-Mora, Fabian Murillo-Gómez, Juliane Maria Guerreiro-Tanomaru, Mario Tanomaru-Filho, Jessie Reyes-Carmona

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In one paragraph

Article in Clinical oral investigations, 2022. 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
1.3field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

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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

6 authors at 2 institutions in 2 countries.

Cristina Retana-LoboDepartment of Endodontics, Faculty of Dentistry, LICIFO, University of Costa Rica, SJO, Sabanilla, San José, 11502, Costa Rica.ORCID http://orcid.org/0000-0001-9754-5047
Tatiana Ramírez-MoraDepartment of Endodontics, Faculty of Dentistry, LICIFO, University of Costa Rica, SJO, Sabanilla, San José, 11502, Costa Rica.ORCID http://orcid.org/0000-0002-1837-0590
Fabian Murillo-GómezDental Materials Research Laboratory, School of Dentistry, University of Costa Rica, SJO, Sabanilla, San José, 11502, Costa Rica.ORCID http://orcid.org/0000-0002-9296-1858
Juliane Maria Guerreiro-TanomaruDepartment of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil.ORCID http://orcid.org/0000-0003-0446-2037
Mario Tanomaru-FilhoDepartment of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil.ORCID http://orcid.org/0000-0002-2574-4706
Jessie Reyes-CarmonaDepartment of Endodontics, Faculty of Dentistry, LICIFO, University of Costa Rica, SJO, Sabanilla, San José, 11502, Costa Rica. jessreyesc@hotmail.com.ORCID http://orcid.org/0000-0003-2872-6623
Universidad de Costa Rica · CRUniversidade Estadual Paulista (Unesp) · BR

Funding

Vicerrectoría de Investigación, Universidad de Costa Rica C1320
6 · The paper itself

Abstract

objectiveTo evaluate the effect of several final irrigation protocols on radicular dentin microhardness, biochemical composition, and DMP1-CT expression. MATERIALS AND

methodsA total of 140 single-rooted human teeth were prepared with WaveOne Gold files and randomly distributed into 7 groups (n = 20) according to the final irrigation protocol: distilled water (DW); sodium hypochlorite-EDTA (NaOCl-EDTA); EDTA (EDTA); EDTA-NaOCl (EDTA-NaOCl); EDTA-chlorhexidine (EDTA-CHX); passive ultrasonic irrigation (PUI:NaOCl-EDTA); and PUI:NaOCl-EDTA-NaOCl. Dentin microhardness (n = 10) was evaluated in the root canal lumen using Vickers hardness tester. Immunohistochemical analysis (n = 5) was used to evaluate DMP1-CT expression. Dentin ultrastructure and biochemical composition were evaluated by using Raman and energy dispersive X-ray analysis (EDAX) (n = 5) with a scanning electron microscope (SEM). Analysis of variance (ANOVA) and Tukey test were performed (p˂0.05).

resultsRaman spectra of the organic content and DMP1-CT expression were lower at the lumen canal in EDTA-NaOCl, PUI:NaOCl-EDTA, and PUI:NaOCl-EDTA-NaOCl when compared to control (p < 0.05). EDAX showed reduced values for calcium and phosphorus in EDTA-NaOCl, PUI:NaOCl-EDTA, and PUI:NaOCl-EDTA-NaOCl. SEM microphotography's showed completely cleaned dentin, permeable tubules, and dentin erosion, mainly when PUI was used. NaOCl-EDTA presented significantly higher microhardness values than PUI:NaOCl-EDTA-NaOCl (p < 0.05). PUI:NaOCl-EDTA-NaOCl exhibited the lowest Vickers hardness values of all groups.

conclusionThe final irrigation protocols that used a final rinse with NaOCl and PUI showed a detrimental effect on radicular dentin DMP1-CT expression, biochemical composition, and microhardness. CLINICAL RELEVANCE: The adequate irrigation protocol could be advantageous to preserve the radicular dentin ultrastructure, promote adequate adhesion, and sustain favorable conditions for biomineralization and regeneration.

Indexed as

Dental Pulp CavityRoot Canal IrrigantsDentinEdetic AcidHumansMicroscopy, Electron, ScanningRoot Canal PreparationSodium HypochloriteTomography, X-Ray ComputedEdetic AcidRoot Canal IrrigantsSodium HypochloriteDMP1-CTIrrigation protocolsMicrohardnessNon-collagenous proteins

Identifiers

PMID35499657
OpenAlexW4225264648

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.