scholarly journals Modifications of Glass Ionomer Cement Powder by Addition of Recently Fabricated Nano-Fillers and Their Effect on the Properties: A Review

2019 ◽  
Vol 13 (03) ◽  
pp. 470-477 ◽  
Author(s):  
Imran Alam Moheet ◽  
Norhayati Luddin ◽  
Ismail Ab Rahman ◽  
Thirumulu Ponnuraj Kannan ◽  
Nik Rozainah Nik Abd Ghani ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Nano Particles ◽  
In Vivo Studies ◽  
Original Research ◽  
Nano Particle ◽  
Glass Ionomer ◽  
Tooth Structure ◽  
Ionomer Cement

AbstractThe aim of this article is to provide a brief insight regarding the recent studies and their recommendations related to the modifications to glass ionomer cement (GIC) powder in order to improve their properties. An electronic search of publications was made from the year 2000 to 2018. The databases included in the current study were EBSCOhost, PubMed, and ScienceDirect. The inclusion criteria for the current study include publication with abstract or full-text articles, original research, reviews or systematic reviews, in vitro, and in vivo studies that were written in English language. Among these only articles published in peer-reviewed journals were included. Articles published in other languages, with no available abstract and related to other nondentistry fields, were excluded. A detailed review of the recent materials used as a filler phase in GIC powder has revealed that not all modifications produce beneficial results. Recent work has demonstrated that modification of GIC powder with nano-particles has many beneficial effects on the properties of the material. This is due to the increase in surface area and surface energy, along with better particle distribution of the nano-particle. Therefore, more focus should be given on nano-particle having greater chemical affinity for GIC matrix as well as the tooth structure that will enhance the physicochemical properties of GIC.

scholarly journals In vitro and in vivo evaluations of glass-ionomer cement containing chlorhexidine for Atraumatic Restorative Treatment

2017 ◽  
Vol 25 (5) ◽  
pp. 541-550 ◽  
Author(s):  
Cristiane Duque ◽  
Kelly Limi Aida ◽  
Jesse Augusto Pereira ◽  
Gláucia Schuindt Teixeira ◽  
Angela Scarparo Caldo-Teixeira ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Atraumatic Restorative Treatment ◽  
Glass Ionomer ◽  
Restorative Treatment ◽  
Ionomer Cement

scholarly journals In vitro and in vivo investigation of the biological and mechanical behaviour of resin-modified glass-ionomer cement containing chlorhexidine

2013 ◽  
Vol 41 (2) ◽  
pp. 155-163 ◽  
Author(s):  
Aline Rogéria Freire de Castilho ◽  
Cristiane Duque ◽  
Thaís de Cássia Negrini ◽  
Nancy Tomoko Sacono ◽  
Andréia Bolzan de Paula ◽  
...  
Keyword(s):  
Mechanical Behaviour ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

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 The effects of chitosan addition to glass ionomer cement on microhardness and surface roughness

2021 ◽  
Vol 19 ◽  
pp. 228080002198970
Author(s):  
Koray Soygun ◽  
Arzu Soygun ◽  
Muharrem Cem Dogan
Keyword(s):  
Surface Roughness ◽  
Gastric Acid ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
In Vivo Studies ◽  
Control Group ◽  
Glass Ionomer ◽  
Optical Profilometer ◽  
Ionomer Cement

Objective: The aim of this study was to investigate the surface microhardness and roughness properties of a modified glass ionomer cement formed by adding different ratios of Chitosan, when exposed to saliva and acid erosive gastric acid cycle environments. Methods: Chitosan was added to conventional glass ionomer liquid at volumes of 5% and 10%. The chitosan-modified glass ionomer was used for the experimental group, and traditional glass ionomer formed the control group. All the groups were separated into two subgroups. One of these subgroups was subjected to a gastric acid erosive cycle. The other subgroup was immersed in artificial saliva. Microhardness, surface roughness with optical profilometer and AFM measurements of all the samples were taken. Qualitative surface topographic evaluations were made using a SEM. The data were analyzed by Kruskal-Wallis and Mann Whitney U-test for pairwise comparisons of the groups at the 0.05 level of significance. Results: The addition of chitosan to GIC had a positive effect on the microhardness values. The gastric acid erosive cycle application negatively affected the microhardness and surface roughness properties of the sample groups. Conclusion: The chitosan-modified glass ionomer cement samples showed clinically acceptable surface roughness values. Although the results of the addition of the biopolymer, chitosan, to GIC are promising, there is a need for further in-vivo studies.

scholarly journals Advances in glass-ionomer cements

2006 ◽  
Vol 14 (spe) ◽  
pp. 3-9 ◽  
Author(s):  
Carel Leon Davidson
Keyword(s):  
Glass Ionomer Cement ◽  
Minimal Invasive ◽  
Composite Resins ◽  
Restorative Material ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Tooth Structure ◽  
Ionomer Cement

This article describes the properties, advances and shortcomings of glass-ionomer cement as a restorative material. The adhesion of glass-ionomer to tooth structure is less technique sensitive than composite resins and its quality increases with time. Therefore glass-ionomer might turn out to the more reliable restorative material in minimal invasive dentistry based on adhesive techniques.

scholarly journals In vitro quantitative evaluation of marginal microleakage in class II restorations confected with a glass ionomer cement and two composite resins

2001 ◽  
Vol 15 (4) ◽  
pp. 277-282 ◽  
Author(s):  
Maria Fernanda Borro BIJELLA ◽  
Maria Francisca Thereza Borro BIJELLA ◽  
Salete Moura Bonifácio da SILVA
Keyword(s):  
Glass Ionomer Cement ◽  
Class Ii ◽  
Deionized Water ◽  
Composite Resins ◽  
Glass Ionomer ◽  
Dye Penetration ◽  
Significant Difference ◽  
Distal Direction ◽  
Ionomer Cement

This study evaluated, in vitro, marginal microleakage in class II restorations confected with the glass ionomer cement Vitremer and with the composite resins Ariston pHc and P-60. The aims of the study were to assess the effect of thermocycling on those materials and to evaluate two methods utilized in the analysis of dye penetration. Sixty premolars divided in three groups were utilized; the teeth had proximal cavities whose cervical walls were located 1 mm below the cementoenamel junction. Half of the test specimens from each group underwent thermocycling; the other half remained in deionized water, at 37ºC. The specimens were immersed, for 24 hours, in a basic 0.5% fuchsin solution at 37ºC. For the analysis of microleakage, the specimens were sectioned in a mesio-distal direction, and the observation was carried out with the software Imagetools. The results were evaluated through the 2-way ANOVA and through the Tukey’s test. All groups presented marginal microleakage. The smallest values were obtained with Vitremer, followed by those obtained with the composite resins P-60 and Ariston pHc. There was no statistically significant difference caused by thermocycling, and the method of maximum infiltration was the best for detecting the extension of microleakage.

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