Structural evaluation of ZnO substitution for CaO in glass ionomer cement synthesized by sol-gel method and their properties

2022 ◽  
Author(s):  
Oranich Thongsri ◽  
Sawitri Srisuwan ◽  
Paritat Thaitalay ◽  
Rawee Dangwiriyakul ◽  
Prasert Aengchuan ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural Evaluation ◽  
Ionomer Cement

scholarly journals Synthesis and biocompatibility of an experimental glass ionomer cement prepared by a non-hydrolytic sol-gel method

2010 ◽  
Vol 21 (6) ◽  
pp. 499-507 ◽  
Author(s):  
Lucas da Fonseca Roberti Garcia ◽  
Fernanda de Carvalho Panzeri Pires-de-Souza ◽  
Juliana Mazzoneto Teófilo ◽  
Alexandre Cestari ◽  
Paulo Sergio Calefi ◽  
...  
Keyword(s):  
Inflammatory Reaction ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Glass Ionomer ◽  
Gel Method ◽  
Sol Gel Method ◽  
Experimental Glass ◽  
Chronic Inflammatory Reaction ◽  
Ionomer Cement

The aims of this study were to demonstrate the synthesis of an experimental glass ionomer cement (GIC) by the non-hydrolytic sol-gel method and to evaluate its biocompatibility in comparison to a conventional glass ionomer cement (Vidrion R). Four polyethylene tubes containing the tested cements were implanted in the dorsal region of 15 rats, as follows: GI - experimental GIC and GII - conventional GIC. The external tube walls was considered the control group (CG). The rats were sacrificed 7, 21 and 42 days after implant placement for histopathological analysis. A four-point (I-IV) scoring system was used to graduate the inflammatory reaction. Regarding the experimental GIC sintherization, thermogravimetric and x-ray diffraction analysis demonstrated vitreous material formation at 110oC by the sol-gel method. For biocompatibility test, results showed a moderate chronic inflammatory reaction for GI (III), severe for GII (IV) and mild for CG (II) at 7 days. After 21 days, GI presented a mild reaction (II); GII, moderate (III) and CG, mild (II). At 42 days, GI showed a mild/absent inflammatory reaction (II to I), similar to GII (II to I). CG presented absence of chronic inflammatory reaction (I). It was concluded that the experimental GIC presented mild/absent tissue reaction after 42 days, being biocompatible when tested in the connective tissue of rats.

Sol–gel-derived bioactive glass nanoparticle-incorporated glass ionomer cement with or without chitosan for enhanced mechanical and biomineralization properties

2017 ◽  
Vol 33 (7) ◽  
pp. 805-817 ◽  
Author(s):  
Dong-Ae Kim ◽  
Jung-Hwan Lee ◽  
Soo-Kyung Jun ◽  
Hae-Won Kim ◽  
Mohamed Eltohamy ◽  
...  
Keyword(s):  
Bioactive Glass ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ionomer Cement

scholarly journals AVALIAÇÃO ESTRUTURAL DA MULITA SINTETIZADA PELO MÉTODO SOL-GEL / STRUCTURAL EVALUATION OF MULITA SYNTHESIZED BY THE SOL-GEL METHOD

2020 ◽  
Vol 6 (9) ◽  
pp. 69078-69087
Author(s):  
Aluska do Nascimento Simões Braga ◽  
Geysivana Késsya Garcia Carvalho ◽  
Veruska do Nascimento Simões ◽  
Romualdo Rodrigues Menezes
Keyword(s):  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural Evaluation

scholarly journals Characterization of the calcium-fluoroaluminosilicate glass prepared by a non-hydrolytic sol-gel route for future dental application as glass ionomer cement

2009 ◽  
Vol 12 (2) ◽  
pp. 139-143 ◽  
Author(s):  
Alexandre Cestari ◽  
Lilian Rodrigues Avila ◽  
Evelisy Cristina Oliveira Nassor ◽  
Paula Fabiana dos Santos Pereira ◽  
Paulo Sergio Calefi ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Dental Application ◽  
Ionomer Cement

Novel nano-hydroxyapatite-silica–added glass ionomer cement for dental application: Evaluation of surface roughness and sol-sorption

2019 ◽  
Vol 28 (5) ◽  
pp. 299-308
Author(s):  
Imran Alam Moheet ◽  
Norhayati Luddin ◽  
Ismail Ab Rahman ◽  
Sam’an Malik Masudi ◽  
Thirumulu Ponnuraj Kannan ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Electron Microscope ◽  
Sol Gel ◽  
Sorption Property ◽  
Glass Ionomer Cement ◽  
Weight Ratio ◽  
Lower Surface ◽  
Glass Ionomer ◽  
One Pot ◽  
Ionomer Cement

The aim of this study was to synthesize and characterize nano-hydroxyapatite-silica (nano-HA-Si) particle, followed by the evaluation of surface roughness and sol-sorption property of conventional glass ionomer cement (cGIC) with the addition of nano-HA-Si. Nano-HA-Si was synthesized by one-pot sol–gel technique. It was then characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, and transmission electron microscope. Experimental nano-HA-Si–added GIC (nano-HA-Si-GIC) was prepared by adding 10% by weight ratio of nano-HA-Si to cGIC powder. The surface roughness of the samples was analyzed using tactile profilometer. Mass stabilization techniques were used to assess sol-sorption. The 10% nano-HA-Si-GIC samples were successfully fabricated. Nano-HA-Si-GIC reported lower surface roughness (0.13 ± 0.01 μm) as compared to cGIC (0.16 ± 0.03 μm). Nano-HA-Si-GIC reported an increase in sol-sorption when compared to cGIC. Incorporation of nano-HA-Si into the formulation of cGIC enhances their physical properties and with slight increase in sol-sorption property. Nano-HA-Si-GIC has the ability to enhance the characteristics of glass ionomer dental restorative materials. Hence, it can be suggested as a potential future restorative material in dentistry.

Effects of Niobium Oxide Addition on the Mechanical Properties of Glass Ionomer Cement

2015 ◽  
Vol 815 ◽  
pp. 373-378 ◽  
Author(s):  
Shi Qun Li ◽  
Bao Hui Su ◽  
Jun Guo Ran ◽  
Jun Wang ◽  
Ling Ling Yan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Vickers Hardness ◽  
Niobium Oxide ◽  
Setting Time ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ft Ir ◽  
Ionomer Cement

Aiming at inadequate mechanical properties of Glass ionomer cement (GIC) commonly used in dental clinic, commercial and melt quenched GIC powders as control groups, homemade GIC powder was prepared by sol–gel route and modified by Nb2O5. The GIC samples were characterized by X-ray Diffraction (XRD), particle size analysis, Scanning Electron Microscope (SEM) and Fourier Transform Infrared (FT-IR). The compressive strength, Vickers hardness, working and net setting time were tested. The data was analyzed by one-way ANOVA. The XRD results showed that commercial, melt quenched and sol gel GIC powders were similar amorphous. D90 of three GIC powders and Nb2O5 powder were 26 μm, 17 μm, 29 μm and 19 μm respectively. 5% Nb2O5-GIC exhibited the highest values of compressive strength and Vickers hardness, which were 112.93 Mpa, 139.48 MPa and 142.25 MPa respectively, increased 19.11%, 30.56% and 16.51% (P <0.05); the Vickers hardness were 35.15 MPa, 36.23 MPa and 37.62 MPa, increased 18.03%, 29.95% and 16.32% (P <0.05) compared to those of unmodified GICs as well. There was no significant change of the FT-IR characteristic peaks of modified GIC. The working time of three kinds of GIC were 4'58 ", 3'28" and 4'10 ", the net setting time were 5'16", 3'15 "and 4'38" (standard is 1.5-6 minutes). It was concluded that the dispersion stiffened effect of niobium oxide could improve the mechanical properties of the filling GIC without affecting the clinical operating performance.

scholarly journals Characterization and enhancement of physico-mechanical properties of glass ionomer cement by incorporating a novel nano zirconia silica hydroxyapatite composite synthesized via sol-gel

2019 ◽  
Vol 6 (5) ◽  
pp. 730-747 ◽  
Author(s):  
Arbaz Sajjad ◽  
◽  
Wan Zaripah Wan Bakar ◽  
Dasmawati Mohamad ◽  
Thirumulu Ponnuraj Kannan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Hydroxyapatite Composite ◽  
Ionomer Cement
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