Effect of Partial Substitution of K2O for Na2O on Sintering, Crystallization and Mechanical Properties of SiO2-CaO-K2O-Na2O-CaF2Glass-Ceramics

Eilaghi, Mina; Montazerian, Maziar; Yekta, B. Eftekhari

doi:10.1080/0371750x.2015.1130650

Cited by 24 publications

(6 citation statements)

References 13 publications

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“…It has also been proved that this glass‐ceramic forms a sufficient and durable bond when bonded with a composite resin, without the need for acid etching with HF solution . More recently, Eilaghi et al have shown that fluorcanasite glass‐ceramic can be pressureless sintered at 1000°C to an appropriate relative density of 91.3 ± 0.1% and desirable mechanical properties ( σ = 137 ± 7 MPa and K IC = 2.6 ± 0.1 MPa m ½ ) …”

Section: Restorative Dental Glass‐ceramics (Rdgcs)mentioning

confidence: 98%

Bioactive and inert dental glass‐ceramics

Montazerian

Zanotto

2016

J Biomedical Materials Res

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151

104

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The global market for dental materials is predicted to exceed 10 billion dollars by 2020. The main drivers for this growth are easing the workflow of dentists and increasing the comfort of patients. Therefore, remarkable research projects have been conducted and are currently underway to develop improved or new dental materials with enhanced properties or that can be processed using advanced technologies, such as CAD/CAM or 3D printing. Among these materials, zirconia, glass or polymer-infiltrated ceramics, and glass-ceramics (GCs) are of great importance. Dental glass-ceramics are highly attractive because they are easy to process and have outstanding esthetics, translucency, low thermal conductivity, high strength, chemical durability, biocompatibility, wear resistance, and hardness similar to that of natural teeth, and, in certain cases, these materials are bioactive. In this review article, we divide dental GCs into the following two groups: restorative and bioactive. Most restorative dental glass-ceramics (RDGCs) are inert and biocompatible and are used in the restoration and reconstruction of teeth. Bioactive dental glass-ceramics (BDGCs) display bone-bonding ability and stimulate positive biological reactions at the material/tissue interface. BDGCs are suggested for dentin hypersensitivity treatment, implant coating, bone regeneration and periodontal therapy. Throughout this paper, we elaborate on the history, processing, properties and applications of RDGCs and BDGCs. We also report on selected papers that address promising types of dental glass-ceramics. Finally, we include trends and guidance on relevant open issues and research possibilities. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 619-639, 2017.

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Section: Restorative Dental Glass‐ceramics (Rdgcs)mentioning

confidence: 98%

Bioactive and inert dental glass‐ceramics

Montazerian

Zanotto

2016

J Biomedical Materials Res

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151

104

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“…Apart from LD glass‐ceramics, fluorcanasite (FC; K 2 Na 4 Ca 5 Si 12 O 30 F 4 ), glass‐ceramics are one of the focused glass‐ceramic systems in dental restorations due to their high flexural strength and fracture toughness 24,25 . These glass‐ceramics were mostly prepared from SiO 2 ‐K 2 O‐Na 2 O‐CaO‐CaF 2 ‐based glass system.…”

Section: Introductionmentioning

confidence: 99%

Influence of heat treatment temperature on the properties of the lithium disilicate‐fluorcanasite glass‐ceramics

Kraipok

Intawin

Bintachitt

et al. 2021

Int J Applied Ceramic Tech

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This study aims to investigate the influence of heat treatment temperatures on the mechanical properties and chemical solubility (CS) of lithium disilicate‐fluorcanasite glass‐ceramics and to develop new dental materials. The glasses and glass‐ceramics were prepared using CaF2‐SiO2‐CaO‐K2O‐Na2O‐Li2O‐Al2O3‐P2O5‐based glass system using a conventional melt quenching method followed by a two‐stage crystallization process. This two‐stage method involves two heating temperature steps: first at a constant temperature (TS1) of 600°C and second step at varying temperatures (TS2) of 650, 700, 750, and 800°C. The crystallization behavior, phase formation, microstructure, translucency characteristic, density, hardness, fracture strength, and CS were investigated. It was found that the lithium disilicate crystal acted as the main crystalline phase, and the crystalline phase of fluorcanasite occurred at the heat treatment temperatures of 750 and 800°C. In addition, it was found that density, hardness, fracture strength, and CS increased while the translucency values decreased with increasing heat treatment temperatures. Furthermore, the CS increased dramatically when the fluorcanasite phases occurred in the glass‐ceramic samples. The maximum density values, Vickers hardness, fracture toughness, and flexural strength are 2.56 g/cm3, 6.73 GPa, 3.38 MPa.m1/2, and 259 MPa, respectively. These results may offer a possibility to design a new material for dental applications based on lithium disilicate‐fluorcanasite glass‐ceramics.

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“…As the amount of the glass matrix increased gradually, which is most probably caused by the amorphous B 2 O 3 (formed by oxidation of TiB 2 HCPs), the residual stress has decreased. One of the reasons for the gradually decreasing mass loss is the decreasing areas of stress due to the relaxation of residual stress and promotion of densification [36][37][38][39]. Besides, the presence of TiB 2 HCPs in the structure contributes to the development of wear resistance of the entire surface via the regional resistances in the surface by the properties of hardness and toughness.…”

Section: Resultsmentioning

confidence: 99%

TiB₂ embedded borosilicate coatings with improved wear resistance

Çöpoğlu

Karaahmet

Cengiz³

et al. 2021

Surface Engineering

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State-of-the-art abrasion resistance of glass ceramic coatings (GCCs) is set by dense, low closed porosity, defect-and micro-stress-free microstructure since GCCs have low fracture toughness. Titanium diboride (TiB 2 ) is a ceramic material with relatively high strength and durability as characterized by the high melting point, hardness, and wear resistance. In this study, the effect of mill additive TiB 2 hard ceramic particles (HCP) on GCCs was investigated. The precursor glass ceramic system of SiO 2 -Na 2 O-B 2 O 3 -CaO-Fe 2 O 3 was selected. The wear resistance of the GCCs was tested simultaneously by Taber Abraser and by a tribometer. B 2 O 3 , which is formed by the oxidation of TiB 2 , fills the pores and the microcracks on the surface, thus reducing the stress areas and increasing the wear resistance. Increasing the TiB 2 HCP addition yielded a decrease in mass loss of about 81%, wear rate of about 82% and increase in the coefficient of friction of 15%.

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Effect of Partial Substitution of K₂O for Na₂O on Sintering, Crystallization and Mechanical Properties of SiO₂-CaO-K₂O-Na₂O-CaF₂Glass-Ceramics

Cited by 24 publications

References 13 publications

Bioactive and inert dental glass‐ceramics

Bioactive and inert dental glass‐ceramics

Influence of heat treatment temperature on the properties of the lithium disilicate‐fluorcanasite glass‐ceramics

TiB₂ embedded borosilicate coatings with improved wear resistance

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Effect of Partial Substitution of K2O for Na2O on Sintering, Crystallization and Mechanical Properties of SiO2-CaO-K2O-Na2O-CaF2Glass-Ceramics

Cited by 24 publications

References 13 publications

Bioactive and inert dental glass‐ceramics

Bioactive and inert dental glass‐ceramics

Influence of heat treatment temperature on the properties of the lithium disilicate‐fluorcanasite glass‐ceramics

TiB2 embedded borosilicate coatings with improved wear resistance

Contact Info

Product

Resources

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Effect of Partial Substitution of K₂O for Na₂O on Sintering, Crystallization and Mechanical Properties of SiO₂-CaO-K₂O-Na₂O-CaF₂Glass-Ceramics

TiB₂ embedded borosilicate coatings with improved wear resistance