X - Ray Diffraction and Biocompatibility of Glass Ionomer Cement Reinforced by Different Ratios of Synthetic Hydroxyapatite

2013 ◽  
Vol 25 (3) ◽  
pp. 62-68
Author(s):  
Mohammed R. Al-Jabouri ◽  
Zainab M. Abdul-Ameer
Keyword(s):  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Synthetic Hydroxyapatite ◽  
Ionomer Cement

Glass Ionomer Cement – Development and Characterization Microstructural

2014 ◽  
Vol 805 ◽  
pp. 12-18
Author(s):  
Waldênia P. Freire ◽  
Marcus Vinícius Lia Fook ◽  
Emilly F. Barbosa ◽  
Camila S. Araújo ◽  
Rossemberg C. Barbosa ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Homogeneous Distribution ◽  
Control Group ◽  
Bone Cements ◽  
Glass Ionomer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Luting Agent ◽  
Diffraction Patterns ◽  
Ionomer Cement

The Glass Ionomers Cements (GICs) are materials widely used in dentistry, have advantages such as fluoride release and chemical adhesion to the dental substrate. They are recommended as a restorative material, luting agent in prosthetic dentistry and also in medicine. However, there is need for developing new bone cements as an alternative or replacement to the current polymethylmethacrylate cements, therefore, the objective of this research was to develop an experimental GIC and characterization regarding morphology, chemical composition and crystallinity. This composite was characterized by X-ray diffraction (XRD), Infrared Spectroscopy Fourier Transform (FTIR) and optical microscopy (OM). For comparative study, was used the GIC Vidrion R (SS White) in the control group. These cements are presented in semi-crystalline diffraction patterns, the FTIR spectra observed characteristic bands of these materials and microstructural study of the cements showed homogeneous distribution of filler in the polymer matrix, corroborating with the literature.

scholarly journals Preparation, Physicochemical Characterization, and Bioactivity Evaluation of Strontium-Containing Glass Ionomer Cement

ISRN Ceramics ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Masomeh Khaghani ◽  
Ali Doostmohammadi ◽  
Zahra Golniya ◽  
Ahmad Monshi ◽  
Ahmad Reza Arefpour
Keyword(s):  
Electron Microscope ◽  
Body Fluid ◽  
Glass Ionomer Cement ◽  
Xrd Analysis ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ionomer Cement ◽  
Scanning Electron

Background. Glass ionomer cements are one of the most important restorative materials in dentistry. One of the disadvantages of glass ionomer cements is their undesirable mechanical properties and bioactivity. Aim. The aim of this work was preparation and characterization of strontium-containing glass ionomer cement and evaluation of its bioactivity in the simulated body fluid. Materials and Methods. The ceramic component of glass ionomer cement was made by melting method. Scanning electron microscope (SEM) was used to study the size and the shape of glass particles. In order to determine the phase combination in the produced material, X-ray diffraction (XRD) analysis was carried out. The chemical composition of the glass was evaluated by X-ray florescence (XRF), and the surface area of the particles was determined using BET method. In order to investigate the biological properties of the glass, samples were immersed in simulated body fluid (SBF). Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) were used to recognize and confirm the apatite layer on the composite surface. Results and Conclusions. The result of X-ray diffraction (XRD) analysis confirmed the glassy structure of the produced ionomer cements. The result of XRF confirmed the presence of Sr in the chemical composition. Fourier transform infrared spectroscopy test and electron microscope confirmed the formation of apatite layer on the surface of material. The final result of this research was gaining glass ionomer cement containing Sr with improved bioactivity.

scholarly journals Incorporation of Hydroxyapatite into Glass Ionomer Cement (GIC) Formulated Based on Alumino-Silicate-Fluoride Glass Ceramics from Waste Materials

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 954
Author(s):  
Wan Nurshamimi Wan Jusoh ◽  
Khamirul Amin Matori ◽  
Mohd Hafiz Mohd Zaid ◽  
Norhazlin Zainuddin ◽  
Mohammad Zulhasif Ahmad Khiri ◽  
...  
Keyword(s):  
Chemical Elements ◽  
Ageing Time ◽  
Glass Ionomer Cement ◽  
Glass Ceramics ◽  
Fluoride Glass ◽  
Waste Materials ◽  
Glass Ionomer ◽  
X Ray ◽  
Alumino Silicate ◽  
Ionomer Cement

Glass ionomer cement (GIC) is a well-known restorative material applied in dentistry. The present work aims to study the effect of hydroxyapatite (HA) addition into GIC based on physical, mechanical and structural properties. The utilization of waste materials namely clam shell (CS) and soda lime silica (SLS) glass as replacements for the respective CaO and SiO2 sources in the fabrication of alumino-silicate-fluoride (ASF) glass ceramics powder. GIC was formulated based on ASF glass ceramics, polyacrylic acid (PAA) and deionized water, while 1 wt.% of HA powder was added to enhance the properties of the cement samples. The cement samples were subjected to four different ageing times before being analyzed. In this study, the addition of HA caused an increment in density and compressive strength results along with ageing time. Besides, X-ray Diffraction (XRD) revealed the formation of fluorohydroxyapatite (FHA) phase in HA-added GIC samples and it was confirmed by Fourier Transform Infrared (FTIR) analysis which detected OH‒F vibration mode. In addition, needle-like and agglomeration of spherical shapes owned by apatite crystals were observed from Field Emission Scanning Electron Microscopy (FESEM). Based on Energy Dispersive X-ray (EDX) analysis, the detection of chemical elements in the cement samples were originated from chemical compounds used in the preparation of glass ceramics powder and also the polyacid utilized in initiating the reaction of GIC.

scholarly journals Re-mineralization potential, shear bond strength and hydration characteristics of experimentally prepared tri-calcium aluminate phase-modified glass ionomer cement on sound and caries-affected dentin (An in vitro/in vivo study)

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
M. M. Radwan ◽  
H. K. Abd EL-Hamid ◽  
Shaymaa M. Nagi
Keyword(s):  
Bond Strength ◽  
Calcium Aluminate ◽  
Shear Bond Strength ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
X Ray ◽  
Hydration Characteristics ◽  
Ionomer Cement

Abstract Background This study aimed to in vivo and in vitro evaluate the remineralization potential and shear bond strength (SBS) of experimentally prepared tri-calcium aluminate (C3A)-modified glass ionomer cements on sound and artificial caries-affected dentin (CAD). A pure tricalcium aluminate (C3A) phase prepared via solid state reaction at elevated temperature from chemically pure calcium carbonate and alumina, to formulate ceramic composite of composition: 75% C3A, 15% CaSO4·2H2O and 10% Bi2O3. The influence of artificial saliva solution on the hydration characteristics and microstructure of the synthesized composite was investigated by X-ray diffraction (XRD) analysis, FTIR spectral analysis, pH determination and scanning electron microscope (SEM) in comparison with distilled water curing medium. Modified cements of C3A glass ionomers (C3A-CGIC) were prepared by addition of the experimentally prepared C3A to the powder component of the conventical glass ionomer cement (CGIC). Five and 10 wt% of C3A- CGICs powder were prepared and compared to CGIC. Cements were applied in prepared class V cavities in rabbits’ teeth either to sound or artificial CAD. All rabbits were killed after 15 days, and then, Ca and P wt% were evaluated at the cement–dentin interface using Energy-Dispersive X-ray Analysis. Specimens for SBS evaluation were prepared for the tested cements bonded either to sound or artificial CAD, then tested using universal testing machine. Results The XRD results indicate that there is an acceleration effect on the hydration reactions and decrease in the rate of conversion process of C3A phase composite due to the presence of free ions in saliva solution which was emphasized by the results of the IR spectral bands of the hydrated paste samples. The SEM micrographs showed a more-dense microstructure with large accumulations of aluminate hydrate crystals of samples cured under saliva solution. Results of the prepared C3A-CGICs showed that 10wt% C3A-GIC group had the highest statistically significant mean Ca, P wt% and SBS values on CAD compared to 5wt% C3A-GIC and CGIC. Conclusions 10 wt% C3A-GIC has a remineralizing effect on artificial CAD under in vivo conditions, plus its improved bonding to dentin compared to CGIC. Thus, it might be promising restorative/base with advanced remineralization potential and adequate bond strength to both sound dentin and CAD.

scholarly journals Studies on the Potential of Waste Soda Lime Silica Glass in Glass Ionomer Cement Production

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
V. W. Francis Thoo ◽  
N. Zainuddin ◽  
K. A. Matori ◽  
S. A. Abdullah
Keyword(s):  
Glass Ionomer Cement ◽  
Soda Lime ◽  
Waste Glass ◽  
Glass Ionomer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Silica Glasses ◽  
Amorphous Glass ◽  
Soda Lime Silica Glass ◽  
Ft Ir

Glass ionomer cements (GIC) are produced through acid base reaction between calcium-fluoroaluminosilicate glass powder and polyacrylic acid (PAA). Soda lime silica glasses (SLS), mainly composed of silica (SiO2), have been utilized in this study as the source of SiO2for synthesis of Ca-fluoroaluminosilicate glass. Therefore, the main objective of this study was to investigate the potential of SLS waste glass in producing GIC. Two glasses, GWX 1 (analytical grade SiO2) and GWX 2 (replacing SiO2with waste SLS), were synthesized and then characterized using X-ray diffraction (XRD) and energy dispersive X-ray (EDX). Synthesized glasses were then used to produce GIC, in which the properties were characterized using Fourier transform infrared spectroscopy (FT-IR) and compressive test (from 1 to 28 days). XRD results showed that amorphous glass was produced by using SLS waste glass (GWX 2), which is similar to glass produced using analytical grade SiO2(GWX 1). Results from FT-IR showed that the setting reaction of GWX 2 cements is slower compared to cement GWX 1. Compressive strengths for GWX 1 cements reached up to 76 MPa at 28 days, whereas GWX 2 cements showed a slightly higher value, which is 80 MPa.

scholarly journals Osteoblast behaviours on nanorod hydroxyapatite-grafted glass surfaces

2019 ◽  
Vol 23 (1) ◽  
Author(s):  
So Jung Park ◽  
Kailash Chandra Gupta ◽  
Hun Kim ◽  
Sukyoung Kim ◽  
Inn-Kyu Kang
Keyword(s):  
Photoelectron Spectroscopy ◽  
Glass Surface ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Main Ingredient ◽  
Cover Glass ◽  
X Ray ◽  
Glass Surfaces ◽  
Property Modification ◽  
Ionomer Cement

Abstract Background The goal of this study is to obtain basic information to improve the bone adhesion of silica components, which are used as the main ingredient in glass ionomer cement (GIC). To achieve this, nanorod hydroxyapatite (nHA) was grafted to the surface of silica cover glass. Surface analysis confirmed nHA was joined to the glass surface and biocompatibility with osteoblasts was investigated. Results The grafting of nHA on the surface of slide cover glass (Glass) was confirmed by X-ray photoelectron spectroscopy (XPS) and contact angle (θ) measurement. MC3T3-E1 cells were more stretched out on the nHA-grafted cover glass (Glass-nHA) in comparison to the Glass. In addition, the Glass-nHA was more bioactive in supporting the proliferation of MC3T3-E1 cells in comparison to cells seeded on the Glass. Conclusion The Glass-nHA was to be highly bioactive and this might be useful information for property modification of GIC.

scholarly journals Calcium Charge and Release of Conventional Glass-Ionomer Cement Containing Nanoporous Silica

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1295 ◽  
Author(s):  
Koichi Nakamura ◽  
Shigeaki Abe ◽  
Hajime Minamikawa ◽  
Yasutaka Yawaka
Keyword(s):  
Calcium Ion ◽  
Calcium Concentration ◽  
Glass Ionomer Cement ◽  
Nanoporous Silica ◽  
Glass Ionomer ◽  
Release Behavior ◽  
Ion Release ◽  
X Ray ◽  
Release Property ◽  
Ionomer Cement

The aim of this study was to evaluate calcium charge and release of conventional glass-ionomer cement (GIC) containing nanoporous silica (NPS). Experimental specimens were divided into two groups: the control (GIC containing no NPS) and GIC-NPS (GIC containing 10 wt % NPS). The specimens were immersed in calcium chloride solutions of 5 wt % calcium concentration for 24 h at 37 °C, whereupon the calcium ion release of the specimens was measured. The calcium ion release behavior of GIC-NPS after immersion in the calcium solution was significantly greater than that of the control. Scanning electron microscopy and electron-dispersive X-ray spectroscopy results indicated that calcium penetrated inside the GIC-NPS specimen, while the calcium was primarily localized on the surface of the control specimen. It was demonstrated that NPS markedly improved the calcium charge and release property of GIC.

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