Structural, morphological and dissolution properties of ZrO2-based biocomposites for dental applications

Bizo, Liliana; Sabo, Klara; Barabáş, Réka; Katona, Gabriel; Barbu–Tudoran, Lucian; Berar, Antonela; Technologies, Donath Street Molecular

doi:10.24193/subbchem.2020.1.11

Cited by 5 publications

(8 citation statements)

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“…The Mg-doped ZrO 2 bioceramics, i.e., Zr 1−x Mg x O 2 (x = 0.05, 0.1, 0.15, 0.2, 0.25 and 0.3), were prepared by solid-state reaction at high temperature using the procedure as previously reported [ 20 , 21 , 22 ]. High-purity ZrO 2 (Riedel-de Haën AG, Seelze, Germany, 99%) and MgO (Alfa Aesar, Karlsruhe, Germany, 99.99%) powders were used as raw materials.…”

Section: Methodsmentioning

confidence: 99%

In Vitro Degradation of Mg-Doped ZrO2 Bioceramics at the Interface with Xerostom® Saliva Substitute Gel

et al. 2023

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Zirconia-based bioceramics, one of the most important materials used for dental applications, have been intensively studied in recent years due to their excellent mechanical resistance and chemical inertness in the mouth. In this work, the structural, morphological and dissolution properties of the Zr1−xMgxO2 (x = 0.05, 0.1, 0.15, 0.2, 0.25, and 0.3) system, prepared by the conventional ceramic method, were evaluated before and after immersion in saliva substitute gel (Xerostom®, Biocosmetics Laboratories, Madrid, Spain), one of the most common topical dry mouth products used in dentistry. The X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS) techniques were employed to investigate the phase transformations and morphology of the ceramics during the degradation process in Xerostom®. In vitro analyses showed overall good stability in the Xerostom® environment, except for the x = 0.05 composition, where significant t- to m-ZrO2 transformation occurred. In addition, the strong interconnection of the grains was maintained after immersion, which could allow a high mechanical strength of the ceramics to be obtained.

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Section: Methodsmentioning

confidence: 99%

In Vitro Degradation of Mg-Doped ZrO2 Bioceramics at the Interface with Xerostom® Saliva Substitute Gel

et al. 2023

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“…In prosthetics, the tetragonal form is used. This form is unstable at ambient temperature and because of this zirconium oxide is stabilized by adding other oxides to their structure (such as yttrium oxide and magnesium oxide) [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…It is characterized with excellent aesthetic value because it is a material with a light color and it is also easy to cover with veneering porcelain. ZrO 2 is a biocompatible material [4,[9][10][11]. In addition, clinical studies did not reveal the occurrence of allergies in people with prosthetic restorations on a zirconium oxide substructure, which is the opposite of those restorations on metal, where a large percentage of owners of such restorations have, for example, a bluish discoloration of the gingiva, commonly known as the "gingival margin" [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Abrasive Treatment on a Transformation of Zirconium Oxide Used in Dental Prosthetics

2022

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Zirconium oxide is a ceramic most often used in the field of dentistry for permanently cementing the substructures of prosthetic restorations in patients. The surface of zirconium oxide should be prepared properly because in the next stage it must be covered with porcelain. The success of prosthetics treatment depends on various factors, but it has been reported that the transformation of zirconium oxide plays a key role. The purpose of the research was to investigate the effect of abrasive blasting on the transformation of zirconium oxide. The research has shown that this type of surface treatment causes the transformation of the tetragonal phase into a monoclinic one. The samples were examined using X-ray diffraction (XRD). The study confirmed the assumption.

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“…In this context, the development of the composite materials with specific characteristics for the most diverse applications is in the continuous attention of the scientific community and industrial developers [3]. Thus, developments of ceramic composites [4] for various medical applications [5,6], electrodes for electrochemical synthesis [7], thin layers for photocatalysis [8], polymer-based composites with various fillers [9 -16] are reported with uses including the electrical engineering field [17][18][19][20], etc.…”

Section: Introductionmentioning

confidence: 99%

“…The composite materials development is intended to meet the specific requirements of the target application such as biocompatibility [5,6], flammability [21], electrical, dielectric, and/or magnetic performance [17][18][19][20], ablation [9], mechanical characteristics [14,20], resistance to the action of microorganisms/biodegradability [11,22,23], etc. The development of 3D printers has opened new research directions in the field of advanced materials, respectively the performed of 3D printable materials.…”

Section: Introductionmentioning

confidence: 99%

Obtaining and Characterizing 3D Printable Polymer Based Composites with BaTiO3 Filler

Caramitu¹,

Dascalu²,

Ion³

et al. 2021

Mater. Plast.

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By the extrusion and injection technique, polymer-based composite samples (polypropylene and thermoplastic polyurethane) were obtained with BaTiO3 filler in concentrations between 0 and 35 %. Following the preliminary characterizations performed by coupled thermal analysis techniques, it was found that the composite samples obtained have thermal stability up to a temperature of about 250 oC and can be processed by extrusion at temperatures between 180 and 240oC. Above this temperature, a series of degradation processes take place by successive thermooxidation with the formation of volatile products.The electrical characterization of the composite samples was performed by the dielectric spectroscopy technique, which showed that the A tga dielectric losses increase as the BaTiO3 content of the composite increases. The maximum increase being recorded at 50 Hz (the slope A tga /% BaTiO3 about 0.003 /% BaTiO3). It was also found, that the electrical conductivity (o) of the composite increases with the increase of content in BaTiO3 so that o at 100 kHz for the composite with 35 % BaTiO3 is about 50 times higher than for the reference sample M 0 (without filler).

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Structural, morphological and dissolution properties of ZrO2-based biocomposites for dental applications

Cited by 5 publications

References 0 publications

In Vitro Degradation of Mg-Doped ZrO2 Bioceramics at the Interface with Xerostom® Saliva Substitute Gel

In Vitro Degradation of Mg-Doped ZrO2 Bioceramics at the Interface with Xerostom® Saliva Substitute Gel

Influence of Abrasive Treatment on a Transformation of Zirconium Oxide Used in Dental Prosthetics

Obtaining and Characterizing 3D Printable Polymer Based Composites with BaTiO3 Filler

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