Artifact expression of polylactic acid/hydroxyapatite/graphene oxide nanocomposite in CBCT: a promising dental material

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dc.contributor.authorNejaim Y.
dc.contributor.authorFarias Gomes A.
dc.contributor.authorQueiroz P.M.
dc.contributor.authorda Silva Siqueira A.
dc.contributor.authorMunoz P.A.R.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorHaiter-Neto F.
dc.date.accessioned2024-03-12T23:48:09Z
dc.date.available2024-03-12T23:48:09Z
dc.date.issued2020
dc.description.abstract© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.Objective: To evaluate the artifact expression of a new material—polylactic acid (PLA)/hydroxyapatite (HA)/graphene oxide (GO) nanocomposite—and compare it with that of commonly used dental materials, using cone-beam computed tomography. Materials and methods: Cylinders of amalgam alloy, metal alloy, titanium, gutta-percha, and PLA/HA/GO were individually placed in the center of an acrylic phantom. Three images of each phantom + cylinder set were acquired using a Picasso Trio unit (Vatech, Hwaseong, South Korea) set at 90 kVp, 3.7 mA, 0.2 mm3 voxel size, and 12 × 8.5 cm FOV. Three images of a control group (sound phantom) were also obtained. Eight ROIs were established in each image to evaluate the standard deviation (S.D.) of gray values in the ImageJ Software. The Kruskal-Wallis test with the Student-Newman-Keuls post hoc was employed, considering a significance level of 5%. Results: There were no significant differences in S.D. between the control and PLA/HA/GO images (p = 0.712). Both control and PLA/HA/GO showed fewer image artifacts than the other materials (p < 0.05). The images of the amalgam alloy did not differ from the metal alloy images (p = 0.691), showing more artifacts than the gutta-percha (p = 0.028) and titanium (p = 0.051). Conclusions: The PLA/HA/GO produced fewer artifacts and a better-quality image than the other tested materials. Clinical relevance: The PLA/HA/GO has physical and biological properties similar to those of dental materials. Since it has produced fewer image artifacts, this new nanocomposite may be employed in the near future, enhancing the diagnosis in CBCT.
dc.description.firstpage1695
dc.description.issuenumber5
dc.description.lastpage1700
dc.description.volume24
dc.identifier.doi10.1007/s00784-019-03027-3
dc.identifier.issn1436-3771
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34989
dc.relation.ispartofClinical Oral Investigations
dc.rightsAcesso Restrito
dc.subject.otherlanguageArtifacts
dc.subject.otherlanguageBiocompatible materials
dc.subject.otherlanguageCone-beam computed tomography
dc.subject.otherlanguageGraphene
dc.titleArtifact expression of polylactic acid/hydroxyapatite/graphene oxide nanocomposite in CBCT: a promising dental material
dc.typeArtigo
local.scopus.citations6
local.scopus.eid2-s2.0-85069516860
local.scopus.subjectArtifacts
local.scopus.subjectCone-Beam Computed Tomography
local.scopus.subjectDental Materials
local.scopus.subjectDurapatite
local.scopus.subjectGraphite
local.scopus.subjectNanocomposites
local.scopus.subjectPhantoms, Imaging
local.scopus.subjectPolyesters
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069516860&origin=inward
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