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.

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 The Comparison of Biofilm Formation, Mechanical and Chemical Properties between Glass Ionomer Cement and Giomer

2021 ◽  
Vol 15 (1) ◽  
pp. 274-283
Author(s):  
Sylva Dinie Alinda ◽  
Anggraini Margono ◽  
Aditya Wisnu Putranto ◽  
Ike Dwi Maharti ◽  
Retno Amalina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Surface Morphology ◽  
Biofilm Formation ◽  
Chemical Elements ◽  
Glass Ionomer Cement ◽  
Antibacterial Properties ◽  
Bacterial Biofilm ◽  
Glass Ionomer ◽  
Ionomer Cement

Aims: The aim of this study was to compare compressive strength and its correlation with the surface morphology and chemical elements of GIC and Giomer, as well as to determine the fluoride amount effect on the bacterial biofilm formation of GIC and Giomer. Background: The liability of Glass Ionomer Cement (GIC) mechanical properties is overcome with better antibacterial properties among restorative materials. Another fluoride-releasing restorative material, such as Giomer, has been discovered and is expected to overcome the issues with GIC’s mechanical properties; however, no research has been conducted related to antibacterial properties in Giomer. Objective: To compare compressive strength and its correlation with the surface morphology and chemical elements, then determine the fluoride amount effect on the bacterial biofilm formation of GIC and Giomer. Methods: Sixteen specimens of GIC and Giomer were prepared for a compressive strength measurement with the Universal Testing Machine. Sixteen specimens of GIC and Giomer were incubated for three days with the Streptococcus mutans culture at 37°C. The bacterial colonization was calculated using the Colony Forming Unit (CFU) and bacterial adhesion was calculated using a Scanning Electron Microscope (SEM). The mechanical properties’ compressive strength measurement, surface morphology, and chemical elements analyses were performed using SEM-EDX. Results: The compressive strength of Giomer was higher than GIC (P=0.001). The higher compressive strength of Giomer was reflected by a predominant regular surface, fewer voids, smaller and denser particles, and a higher content of silica and carbon. The bacterial biofilm on the surface of Giomer was higher than GIC, although there was no significant difference. GIC and Giomer have identical chemical elements: C, O, F, Na, Al, Si, P, and Ca. Conclusion: The compressive strength of Giomer is better than GIC; however, the biofilm formation of Giomer is higher than GIC, whereas GIC has a higher fluoride content but inferior in surfaces morphology characteristic

scholarly journals Effect of the polishing procedure and surface sealant application on fluoride release

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Muhittin Ugurlu
Keyword(s):  
Glass Ionomer Cement ◽  
Energy Dispersive ◽  
Fluoride Glass ◽  
Repeated Measure ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
X Ray ◽  
Restorative Materials ◽  
Surface Sealant ◽  
Fluoride Ion Selective Electrode

Objective: This study aimed to assess the effect of the polishing procedure and surface sealant application on the fluoride release of restorative materials. Material and Methods: The groups were consisted of using five different restorative materials were employed: Beautifil II, GCP Glass Fill, Amalgomer CR, Zirconomer and Fuji IX GP. 30 disk-shaped specimens (8x2 mm) were prepared from each material. Each group was subdivided into three groups considering finishing procedures: Mylar strip, polishing with Super-Snap discs, G-Coat Plus application after polishing with Super-Snap discs. The amount of fluoride released into distilled water was measured using a fluoride ion-selective electrode and ion analyzer after 24 hours, followed by measurement on days 3, 7, 15, 21, and 28.  Surface analysis of the materials was performed with SEM (Scanning Electron Microscopy) and EDS (Energy Dispersive X-ray Spectroscopy). The data were statistically analyzed using two-way repeated measure ANOVA and LSD test (p=0.05). Results: The highest amount of fluoride released was measured after the first 24 h for all materials. Beautifil II released less fluoride than other materials in all measurement periods (p<0.05). After polishing, the amount of fluoride released from all materials except Beautifil II increased (p<0.05). The application of G-Coat Plus did not impact the amount of fluoride release of any materials (p>0.05). EDS analysis showed the most percentage of oxygen in all materials. Conclusion: The polishing procedure might induce an increase in fluoride release of glass ionomer-based materials, and the application of G-Coat Plus cannot affect the amount of fluoride release.   Keywords Energy dispersive x-ray spectroscopy; Fluoride; Glass ionomer cement.

scholarly journals Effect of Different Topical Fluoride on the Surface Roughness of Glass Ionomer Cement

2017 ◽  
Vol 1 ◽  
Author(s):  
Prisca Soo Qyi ◽  
Lasminda Syafiar ◽  
Kholidina Imanda Harahap
Keyword(s):  
Surface Roughness ◽  
Sodium Fluoride ◽  
Glass Ionomer Cement ◽  
Test Group ◽  
Fluoride Glass ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Group I ◽  
Topical Fluoride ◽  
Ionomer Cement

<div class="WordSection1"><p class="AbstractContent"><strong>Objective</strong>: To evaluate the effect of acidulated phosphate fluoride (APF) gel and sodium fluoride (NaF) gel on the surface roughness of glass ionomer cements.</p><p class="AbstractContent"><strong>Methods:</strong> Twenty disc-shaped samples were fabricated from glass ionomer cement (Fuji II, GC Gold Label, Japan) and divided into two test groups that is group I for acidulated phosphate fluoride (APF) gel application and group II for sodium fluoride (NaF) gel application. After 24 hours, the surface roughness (Ra) was determined using a profilometer (MarSurf M300, Germany). Samples surface were applied by topical fluoride gel according test group for 4 minutes. After the treatment, the surface roughness (Ra) was determined using a profilometer. T test was used to evaluate surface roughness measurement and the differences in surface roughness values between test groups.</p><p class="AbstractContent"><strong>Results</strong>: Acidulated phosphate fluoride gel group showed the highest surface roughness than sodium fluoride group. There were significant differences between test groups (<em>p</em> = 0.00).</p><p class="AbstractContent"><strong>Conclusion</strong>: Acidulated phosphate fluoride gel can cause surface roughness on the glass ionomer cement more than sodium fluoride gel.</p><div><p class="Keywords" align="left"><em>Keywords: acidulated phosphate fluoride, glass ionomer cements, sodium fluoride</em><em>, surface roughness</em><em></em></p></div></div><em><br clear="all" /></em>

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 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 Soda lime silicate glass and clam Shell act as precursor in synthesize calcium fluoroaluminosilicate glass to fabricate glass ionomer cement with different ageing time

2020 ◽  
Vol 9 (3) ◽  
pp. 6125-6134 ◽  
Author(s):  
Mohammad Zulhasif Ahmad Khiri ◽  
Khamirul Amin Matori ◽  
Mohd Hafiz Mohd Zaid ◽  
Azurahanim Che Abdullah ◽  
Norhazlin Zainuddin ◽  
...  
Keyword(s):  
Silicate Glass ◽  
Ageing Time ◽  
Glass Ionomer Cement ◽  
Soda Lime ◽  
Glass Ionomer ◽  
Clam Shell ◽  
Soda Lime Silicate Glass ◽  
Ionomer Cement
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