Hydration behaviors of calcium silicate-based biomaterials.
Background/purpose: Calcium silicate (CS)-based biomaterials, such as mineral trioxide aggregate (MTA), have become the most popular and convincing material used in restorative endodontic treatments. However, the commercially available CS-based biomaterials all contain different minor additives, whi...
| Publicado en: | Journal of the Formosan Medical Association Vol. 116; no. 6; pp. 424 - 432 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Jun2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=123040093&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 123040093 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09296646 3O8P jtl: Journal of the Formosan Medical Association issn: 09296646 maglogo: N pubinfo: dt: Jun2017 vid: 116 iid: 6 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 123040093 123040093 NLM27663276 123040093 10.1016/j.jfma.2016.07.009 NLM27663276 123040093 ppf: 424 ppct: 8 formats: tig: atl: Hydration behaviors of calcium silicate-based biomaterials. aug: au: Lee, Yuan-Ling Wang, Wen-Hsi Lin, Feng-Huie Lin, Chun-Pin affil: Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan sug: subj: Aluminum Compounds Calcium Compounds Silicates Oxides Dental Cements Drug Combinations Microscopy, Electron, Scanning Materials Testing Spectrophotometry, Infrared X-Rays Human ab: Background/purpose: Calcium silicate (CS)-based biomaterials, such as mineral trioxide aggregate (MTA), have become the most popular and convincing material used in restorative endodontic treatments. However, the commercially available CS-based biomaterials all contain different minor additives, which may affect their hydration behaviors and material properties. The purpose of this study was to evaluate the hydration behavior of CS-based biomaterials with/without minor additives.Methods: A novel CS-based biomaterial with a simplified composition, without mineral oxides as minor additives, was produced. The characteristics of this biomaterial during hydration were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectrometry. The hydration behaviors of commercially available gray and white MTAs with mineral oxide as minor additives were also evaluated for reference.Results: For all three test materials, the XRD analysis revealed similar diffraction patterns after hydration, but MTAs presented a significant decrease in the intensities of Bi2O3-related peaks. SEM results demonstrated similar porous microstructures with some hexagonal and facetted crystals on the outer surfaces. In addition, compared to CS with a simplified composition, the FTIR plot indicated that hydrated MTAs with mineral oxides were better for the polymerization of calcium silicate hydrate (CSH), presenting Si-O band shifting to higher wave numbers, and contained more water crystals within CSH, presenting sharper bands for O-H bending.Conclusion: Mineral oxides might not result in significant changes in the crystal phases or microstructures during the hydration of CS-based biomaterials, but these compounds affected the hydration behavior at the molecular level. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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