Bioactive composites containing TEGDMA-functionalized calcium phosphate particles: Degree of conversion, fracture strengthand ion release evaluation

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dc.contributor.authorALANIA, YVETTE
dc.contributor.authorCHIARI, MARINA D.S.
dc.contributor.authorRODRIGUES, MARCELA C.
dc.contributor.authorARANA-CHAVEZ, VICTOR E.
dc.contributor.authorBRESSIANI, ANA H.A.
dc.contributor.authorVICHI, FLAVIO M.
dc.contributor.authorBRAGA, ROBERTO R.
dc.coverageInternacionalpt_BR
dc.date.accessioned2016-12-20T10:01:09Z
dc.date.available2016-12-20T10:01:09Z
dc.date.issued2016pt_BR
dc.description.abstractObjective. To evaluate the strength and ion release of experimental composites containingTEGDMA-functionalized calcium phosphate particles.Methods. Seven composites containing equal parts (in mols) of BisGMA and TEGDMA and60 vol% of fillers were manipulated. Filler phase was constituted by silanized barium glassand 0% (control), 10% or 20% (volume) of dicalcium phosphate dihydrate (DPCD) particles,either non-functionalized or functionalized with two different TEDGMA contents. DCPDparticles were synthesized and characterized by X-ray diffraction (XRD), elemental analysis,surface area and dynamic light scattering. Composites were tested for degree of conversion(DC) by near-FTIR. Biaxial flexural strength (BFS) was determined after 24 h and 28 days inwater. Calcium and phosphate release after 7 days was assessed using inductively coupledplasma optical emission spectrometry (ICP-OES). Data were analyzed by ANOVA/Tukey test(alpha:5%).Results. XRD confirmed the crystalline structure corresponding to DCPD. Elemental analysisrevealed particles with zero, 14% or 22% TEGDMA, with similar D50(around 19 m) andsurface areas from 3.5 to 11.4 m2/g. The presence of DCPD did not reduce DC. After 24 h,functionalization (both 14% and 22% TEGDMA) improved composite strength in comparisonto non-functionalized DCPD, both at 10% and 20% levels. After 28 days, BFS of materialscontaining 10% functionalized DCPD were statistically similar to the control containing onlybarium glass. Among composites containing 10% DCPD, particle functionalization with 14%TEGDMA did not jeopardize ion release.pt_BR
dc.format.extente374-e381pt_BR
dc.identifier.citationALANIA, YVETTE; CHIARI, MARINA D.S.; RODRIGUES, MARCELA C.; ARANA-CHAVEZ, VICTOR E.; BRESSIANI, ANA H.A.; VICHI, FLAVIO M.; BRAGA, ROBERTO R. Bioactive composites containing TEGDMA-functionalized calcium phosphate particles: Degree of conversion, fracture strengthand ion release evaluation. <b>Dental Materials</b>, v. 32, p. e374-e381, 2016. DOI: <a href="https://dx.doi.org/10.1016/j.dental.2016.09.021">10.1016/j.dental.2016.09.021</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/26918.
dc.identifier.doi10.1016/j.dental.2016.09.021pt_BR
dc.identifier.issn0109-5641pt_BR
dc.identifier.percentilfi83.66
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/26918
dc.identifier.vol32pt_BR
dc.relation.ispartofDental Materialspt_BR
dc.rightsopenAccesspt_BR
dc.subjectmethacrylates
dc.subjectcalcium phosphates
dc.subjectmechanical properties
dc.subjectresins
dc.subjectcomposite materials
dc.subjectx-ray diffraction
dc.subjectsurface area
dc.subjectlight scattering
dc.subjectspectroscopy
dc.titleBioactive composites containing TEGDMA-functionalized calcium phosphate particles: Degree of conversion, fracture strengthand ion release evaluationpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorANA HELENA DE ALMEIDA BRESSIANI
ipen.codigoautor96
ipen.contributor.ipenauthorANA HELENA DE ALMEIDA BRESSIANI
ipen.date.recebimento16-12pt_BR
ipen.identifier.fi4.070pt_BR
ipen.identifier.ipendoc22772pt_BR
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublication04d834e7-faee-4461-8fa7-5e5071ec48cc
relation.isAuthorOfPublication.latestForDiscovery04d834e7-faee-4461-8fa7-5e5071ec48cc
sigepi.autor.atividadeBRESSIANI, ANA H.A.:96:720:Npt_BR
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