Evidence map›Paper›PMID 32997090›Full record

ArticleJournal of applied oral science : revista FOB2020

Biomechanical and morphological changes produced by ionizing radiation on bone tissue surrounding dental implant.

Priscilla Barbosa Ferreira Soares, Carlos José Soares, Pedro Henrique Justino Oliveira Limirio, Vitor Carvalho Lara, Camilla Christian Gomes Moura, Darceny Zanetta-Barbosa

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of applied oral science : revista FOB, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

5 citing papers in PubMed, 11 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 1 country.

Priscilla Barbosa Ferreira SoaresFederal University of Uberlândia, School of Dentistry, Department of Periodontology and Implantology, Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-4492-8957
Carlos José SoaresFederal University of Uberlândia, School of Dentistry, Department of Operative Dentistry and Dental Materials, Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-8830-605X
Pedro Henrique Justino Oliveira LimirioFederal University of Uberlândia, School of Dentistry, Department of Periodontology and Implantology, Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-0089-3772
Vitor Carvalho LaraFederal University of Triângulo Mineiro, School of Medicine, Department of Radiology, Uberaba, MG, Brasil.ORCID http://orcid.org/0000-0001-5255-9779
Camilla Christian Gomes MouraFederal University of Uberlândia, School of Dentistry, Department of Endodontics, Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-5653-8403
Darceny Zanetta-BarbosaFederal University of Uberlândia, School of Dentistry, Department of Oral and Maxillofacial Surgery, Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-8755-0931
Universidade Federal de Uberlândia · BRUniversidade Federal do Triângulo Mineiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study analyzed the effect of ionizing radiation on bone microarchitecture and biomechanical properties in the bone tissue surrounding a dental implant. METHODOLOGY: Twenty rabbits received three dental morse taper junction implants: one in the left tibia and two in the right tibia. The animals were randomized into two groups: the nonirradiated group (control group) and the irradiated group, which received 30 Gy in a single dose 2 weeks after the implant procedure. Four weeks after the implant procedure, the animals were sacrificed, and the implant/bone specimens were used for each experiment. The specimens (n=10) of the right tibia were examined by microcomputed tomography to measure the cortical volume (CtV, mm3), cortical thickness (CtTh, mm) and porosity (CtPo, %). The other specimens (n=10) were examined by dynamic indentation to measure the elastic modulus (E, GPa) and Vickers hardness (VHN, N/mm2) in the bone. The specimens of the left tibia (n=10) were subjected to pull-out tests to calculate the failure load (N), displacement (mm) up to the failure point and interface stiffness (N/mm). In the irradiated group, two measurements were performed: close, at 1 mm surrounding the implant surface, and distant, at 2.5 mm from the external limit of the first measurement. Data were analyzed using one-way ANOVA, Tukey's test and Student's t-test (α=0.05).

resultsThe irradiated bone closer to the implant surface had lower elastic modulus (E), Vickers hardness (VHN), Ct.Th, and Ct.V values and a higher Ct.Po value than the bone distant to the implant (P<0.04). The irradiated bone that was distant from the implant surface had lower E, VHN, and Ct.Th values and a higher Ct.Po value than the nonirradiated bone (P<0.04). The nonirradiated bone had higher failure loads, displacements and stiffness values than the irradiated bone (P<0.02).

conclusionIonizing radiation in dental implants resulted in negative effects on the microarchitecture and biomechanical properties of bone tissue, mainly near the surface of the implant.

Indexed as

Dental ImplantsRadiation, IonizingAnimalsBiomechanical PhenomenaBone and BonesOsseointegrationRabbitsX-Ray MicrotomographyDental Implants

Identifiers

PMID32997090
PMCPMC7521423
OpenAlexW3091762824

What OpenQuestion holds

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LicenceCC BY
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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.