Evidence map›Paper›PMID 34684695›Full record

ArticleMolecules (Basel, Switzerland)2021

Effect of Biologically Oriented Preparation Technique on the Stress Concentration of Endodontically Treated Upper Central Incisor Restored with Zirconia Crown: 3D-FEA.

Luigi Giovanni Bernardo Sichi, Fernanda Zapater Pierre, Laura Viviana Calvache Arcila, Guilherme Schmitt de Andrade, João Paulo Mendes Tribst, Pietro Ausiello, Alessandro Espedito di Lauro, Alexandre Luiz Souto Borges

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 22 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

8 authors at 4 institutions in 2 countries.

Luigi Giovanni Bernardo SichiDepartment of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos 12245-000, Brazil.
Fernanda Zapater PierreDepartment of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos 12245-000, Brazil.ORCID 0000-0001-7636-6832
Laura Viviana Calvache ArcilaDepartment of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos 12245-000, Brazil.
Guilherme Schmitt de AndradeFaculty of Dentistry, Universidade Estadual do Oeste do Paraná (UNIOESTE), Cascavel 85819-110, Brazil.ORCID 0000-0002-5697-2947
João Paulo Mendes TribstDepartment of Dentistry, University of Taubaté (UNITAU), Taubaté 12020-270, Brazil.ORCID 0000-0002-5412-3546
Pietro AusielloSchool of Dentistry, University of Naples Federico II, via S. Pansini 5, 80131 Naples, Italy.ORCID 0000-0001-7683-5133
Alessandro Espedito di LauroSchool of Dentistry, University of Naples Federico II, via S. Pansini 5, 80131 Naples, Italy.
Alexandre Luiz Souto BorgesDepartment of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos 12245-000, Brazil.ORCID 0000-0002-5707-7565
Universidade Estadual Paulista (Unesp) · BRUniversity of Naples Federico II · ITUniversidade de Taubaté · BRUniversidade Estadual do Oeste do Paraná · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to evaluate the effect of biologically oriented preparation technique on the stress concentration of endodontically treated upper central incisors restored with zirconia crown (yttria-stabilized zirconia polycrystalline ceramic) through finite element analysis (FEA). Four models of maxillary central incisors containing enamel, dentin, periodontal ligament, cortical and medullary bone were created in CAD. Each model received a polymeric core-build up with nanofilled dental resin composite. The evaluated models were SM-preparation in shoulder 90°; CM-chamfer preparation; BOPT-biologically oriented preparation technique and BOPTB-BOPT preparation 1 mm below the cement-enamel junction. All models received zirconia crowns (5Y-TZP), fiberglass post and 1 mm ferrule. The models were imported into the analysis software with parameters for mechanical structural testing using the maximum principal stress and the tensile strength as the analysis criteria. Then, load of 150 N was applied at the cingulum with 45° slope to the long axis of the tooth, with the fixed base for each model. The type of marginal preparation affected the stresses concentration in endodontically treated teeth and in the zirconia crown margin. Considering the stress magnitude only, BOPT is a viable option for anterior monolithic zirconia crowns; however, with the highest stress magnitude at the restoration margin.

Indexed as

CrownsCeramicsComposite ResinsFinite Element AnalysisGlassHumansIncisorStress, MechanicalTensile StrengthTooth, NonvitalZirconiumComposite ResinsfiberglassZirconiumzirconium oxidedental materialsdental restoration failurefinite element analysis

Identifiers

PMID34684695
PMCPMC8538003
OpenAlexW3207581034

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.