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dc.contributor.authorEscobar, Lina María
dc.contributor.authorRivera, Jaime Rodrigo
dc.contributor.authorArbelaez, Eliana
dc.contributor.authorTorres, Luisa F.
dc.contributor.authorVillafañe, Andrea
dc.contributor.authorDíaz-Báez, David
dc.contributor.authorMora, Ingrid
dc.contributor.authorLafaurie, Gloria Inés
dc.contributor.authorTanaka, Midori
dc.relation.ispartofseriesInternational journal of biomaterials, 1687-8795, Vol. 2021, 2021spa
dc.rightsAtribución 4.0 Internacional*
dc.titleComparison of cell viability and chemical composition of six latest generation orthodontic wiresspa
dc.type.localArtículo de revista
dc.subject.decsAlambres para ortodonciaspa
dc.subject.decsEstudios de factibilidadspa
dc.subject.decsEnsayo de materialesspa
dc.publisher.journalInternational journal of biomaterialsspa
dc.contributor.orcidRivera, Jaime Rodrigo [0000-0001-7371-9188]spa
dc.contributor.orcidDíaz-Báez, David [0000-0001-8890-6250]spa
dc.contributor.orcidMora, Ingrid [0000-0002-2332-3713]spa
dc.contributor.orcidLafaurie, Gloria Inés [0000-0003-3986-0625]spa
dc.contributor.orcidTanaka, Midori [0000-0003-3714-3470]spa
dc.identifier.instnameinstname:Universidad El Bosque
dc.identifier.reponamereponame:Repositorio Institucional Universidad El Bosque
dc.title.translatedComparison of cell viability and chemical composition of six latest generation orthodontic wiresspa
dc.description.abstractenglishOrthodontic wires are made of alloys containing different metals, including nickel. It is important to evaluate their biocompatibility prior to use, owing to their long-term use in patients. This in vitro study compared the cytotoxicity and chemical composition of six latest orthodontic wires: Fantasia®, Tanzo®, FLI®, NT3®, DuoForce®, and Gummetal®. The before-use group consisted of wires that were not used in the mouth, and the after-use group consisted of wires that were used in the mouth for two months. The wires were placed in contact with human gingival fibroblasts (HGF) for 72 h, and cytotoxicity was determined using the resazurin test. The chemical composition and surface characterisation were evaluated by spectrometry and scanning electron microscopy. The groups were compared using ANOVA and Kruskal–Wallis test. Only the FLI® wires produced a 36% reduction in HGF viability () and presented greater irregularities and loss of polymer structure. After-use wires showed a significant reduction in the percentage of nickel and the appearance of new elements (oxygen and carbon). Therefore, it can be concluded that no toxic ion release was noticed in this study. Rhodium-coated wires were more stable than PTFE-coated wires, and only the FLI® wires showed a slight cytotoxic
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Atribución 4.0 Internacional
Except where otherwise noted, this item's license is described as Atribución 4.0 Internacional