Evidence map›Paper›PMID 29525922›Full record

ArticleClinical oral investigations2018

Resorptive potential of impacted mandibular third molars: 3D simulation by finite element analysis.

Anne Caroline Oenning, Alexandre Rodrigues Freire, Ana Cláudia Rossi, Felippe Bevilacqua Prado, Paulo Henrique Ferreira Caria, Lourenço Correr-Sobrinho, Francisco Haiter-Neto

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In one paragraph

Article in Clinical oral investigations, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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.

Anne Caroline OenningDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil. anne.oenning@gmail.com.ORCID http://orcid.org/0000-0001-9731-8629
Alexandre Rodrigues FreireDepartment of Morphology, Division of Anatomy, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Ana Cláudia RossiDepartment of Morphology, Division of Anatomy, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Felippe Bevilacqua PradoDepartment of Morphology, Division of Anatomy, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Paulo Henrique Ferreira CariaDepartment of Morphology, Division of Anatomy, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Lourenço Correr-SobrinhoDepartment of Restorative Dentistry, Division of Dental Materials, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Francisco Haiter-NetoDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo 2013/12762-2Fundação de Amparo à Pesquisa do Estado de São Paulo 2014/14409-0
6 · The paper itself

Abstract

objectivesPrevious studies have suggested a relationship between resorption in second molars and pressure from the eruptive force of the third molar. The aim of this study was to simulate functional forces in a mandible model by means of finite element analysis and then assess the biomechanical response produced by impacted third molars on the roots of the second molar. MATERIALS AND

methodsA cone beam computed tomography scan presenting an impacted mandibular third molar was segmented (Mimics V17 software). The modeling process was performed using the reverse engineering technique provided by the Rhinoceros 3D 5.0 software. The third molar position was changed in order to produce different inclinations of the impacted tooth. Bite forces were simulated to evaluate total deformation, the equivalent von Mises stress, minimum principal stress on hard tissue, and equivalent elastic strain on soft tissue.

resultsAreas of high energy dissipation and compression stress were detected in the second molar root, independently of the inclination of the impacted third molar. In general, the horizontal position was the situation in which major stress and the amount of deformation occurred in the second and third molar regions.

conclusionImpacted third molars in close proximity with the adjacent tooth can generate areas of compression concentrated at the site of contact, which suggests an involvement of mechanical factors in the triggering of resorption lesions. CLINICAL RELEVANCE: The results of these computational experiments contribute to the understanding of the triggering and progression of resorptive lesions in the adjacent second molar.

Indexed as

Cone-Beam Computed TomographyFinite Element AnalysisImaging, Three-DimensionalComputer SimulationDental Stress AnalysisHumansMandibleMolar, ThirdSoftwareTooth, ImpactedTooth ResorptionComputer simulationCone beam computed tomographyFinite element analysisImpacted teethOral and maxillofacial surgeryRoot resorption

Identifiers

PMID29525922

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.