Setting time, mechanical and adhesive properties of magnesium oxide nanoparticles modified glass-ionomer cement

In present study, zinc oxide nanoparticles were synthesised using Syzygium aromaticum and characterized using UV visible spectroscopy, SEM, XRD and FTIR techniques. The characteristic hexagonal structure of the ZnO nanoparticles was confirmed through XRD analysis. The UV-Visible spectrum showed a strong absorbance at 366 nm confirming the presence of ZnO and the peak at 496 cm-1 in FTIR indicated the Zn-O stretch bond. Average size of the zinc oxide nanoparticles obtained from SEM analysis was found to be 86 nm. The zinc oxide nanoparticles exhibited better antibacterial activity than clove extract, when tested against clinical isolates of Streptococcus mutans. The nanoparticles incorporated into the dental restorative material, glass ionomer cement (GIC) were tested against S. mutans and exhibited better antibacterial activity than clove extract. Glass ionomer cement (GIC) did not exhibit antibacterial activity alone, but the incorporation of ZnO nanoparticles into GIC significantly improved antibacterial activity. Hence, ZnO embedded GIC is a promising material in restorative dentistry for preventing the recurrence of dental caries.

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The Effect of Addition of Triclosan Antibacterial Agent on The Setting Time of Glass Ionomer Cement

Jurnal Material Kedokteran Gigi ◽

10.32793/jmkg.v7i1.276 ◽

2018 ◽

Vol 7 (1) ◽

pp. 18

Author(s):

Egi Utia Asih ◽

Martha Mozartha ◽

Billy Sujatmiko

Keyword(s):

Antibacterial Agent ◽

Setting Time ◽

Glass Ionomer Cement ◽

Antibacterial Properties ◽

Physical And Mechanical Properties ◽

Control Group ◽

P Value ◽

Restorative Material ◽

Glass Ionomer ◽

Ionomer Cement

Glass ionomer cement (GIC), restorative material in dentistry, are composed of glass powders and polyacrylic acid. GIC can release fluoride that acts as an antibacterial. Various study had been conducted to improve that antibacterial properties, but it can affect the physical and mechanical properties of GIC. The purpose of this study was to determine the effect of addition of triclosan antibacterial agent on the setting time of GIC. To obtain 2.5 % triclosan, 0,25 gram of triclosan powder was mixed into 9,75 gram of GIC powder. The sample was divided into 2 groups: control group (n=16) and treatment group (n=16). The setting time was measured using gilmore needle, by penetrating a needle to the surface of specimens with an interval of 10 seconds until the needle left no traces on the surface of specimens. Statistical analysis was done byT-test. The result showed that p value > 0,05. The conclusion is the addition of triclosan antibacterial agent do not affect the setting time of GIC

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Evaluation of properties of Glass Ionomer Cement reinforced with Zinc Oxide nanoparticles – An in vitro study

Materials Today Proceedings ◽

10.1016/j.matpr.2018.05.088 ◽

2018 ◽

Vol 5 (8) ◽

pp. 16065-16072 ◽

Cited By ~ 1

Author(s):

Priyanka Agarwal ◽

Rashmi Nayak ◽

P. Nagaraj Upadhya ◽

Kishore Ginjupalli ◽

Lokendra Gupta

Keyword(s):

Zinc Oxide ◽

Zinc Oxide Nanoparticles ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Vitro Study ◽

Oxide Nanoparticles ◽

Glass Ionomer ◽

Ionomer Cement

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Influence of Octacalcium Phosphate addition on physical-mechanical properties of Glass Ionomer Cement

Revista Odonto Ciência ◽

10.15448/1980-6523.2017.3.28062 ◽

2018 ◽

Vol 32 (3) ◽

pp. 127 ◽

Cited By ~ 1

Author(s):

Gabriela De Souza Balbinot ◽

Isadora Martini Garcia ◽

Susana Maria Werner Samuel ◽

Fabricio Mezzomo Collares ◽

Vicente Castelo Branco Leitune

Keyword(s):

Tensile Strength ◽

Setting Time ◽

Testing Machine ◽

Glass Ionomer Cement ◽

Octacalcium Phosphate ◽

Glass Ionomer ◽

Significant Difference ◽

Diametral Tensile Strength ◽

Phosphate Addition ◽

Ionomer Cement

OBJECTIVE: The aim of this study was to evaluate the influence of octacalcium phosphate (OCP) addition to conventional glass ionomer cement (GIC).METHODOLOGY: A commercial glass ionomer cement (Vidrion R – S.S. White Artigos Dentários Ltda – Rio de Janeiro, Brazil) was used in this study. OCP was added to powder in 1.5 and 3 wt%. GIC without OCP addition was used as control. Specimens were produced to evaluate radiopacity, setting time and diametral tensile strength of cements. Radiopacity was assessed by phosphor plate system with alluminium step-wedge for comparison. For setting time determination, Gilmore needle (100 g) was used to determine final setting reaction. Diametral tensile strength was measured in a universal testing machine. Data were analyzed by one-way ANOVA at a significance level of 95%.RESULTS: Results showed no statistically significant difference in tested properties with octacalcium phosphate addition in any concentration.CONCLUSION: OCP addition to GIC did not influence materials properties.

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Addition of Chlorhexidine Gluconate to a Glass Ionomer Cement: A Study on Mechanical, Physical and Antibacterial Properties

Brazilian Dental Journal ◽

10.1590/0103-6440201302328 ◽

2014 ◽

Vol 25 (1) ◽

pp. 33-37 ◽

Cited By ~ 19

Author(s):

Luana Mafra Marti ◽

Margareth da Mata ◽

Beatriz Ferraz-Santos ◽

Elcilaine Rizzato Azevedo ◽

Elisa Maria Aparecida Giro ◽

...

Keyword(s):

Antibacterial Activity ◽

Bond Strength ◽

Setting Time ◽

Glass Ionomer Cement ◽

Surface Hardness ◽

Tensile Bond Strength ◽

Glass Ionomer ◽

Diffusion Test ◽

Agar Diffusion Test ◽

Ionomer Cement

The objective of this work was to determine the effect of different concentrations of chlorhexidine digluconate (CHX) on setting time, surface hardness, maximum tensile bond strength and antibacterial activity of a glass ionomer cement (GIC). The material used as control was Ketac Molar Easymix GIC. CHX was incorporated into the GIC during its manipulation at concentrations of 0.5, 1.0 and 2.0%. Antimicrobial activity against S. mutans and L. acidophilus was evaluated by means of agar diffusion test. Tensile bond strength data were analyzed statistically using Analysis of variance and Tukey's test. Setting time, Vickers hardness and agar diffusion test were analyzed using Kruskal-Wallis and Mann-Whitney tests at a significance level of 5%. It was observed that adding CHX at concentrations of 1% and 2% increased significantly the setting time of the material (p=0.012 and p=0.003, respectively). There was no significant difference between control and 0.5% CHX groups regarding the setting time. Addition of 2% CHX decreased significantly the surface hardness in relation to the control group (p=0.009), followed by the 1% CHX group (p=0.009). The tensile bond strength of the material also decreased significantly after adding CHX at a concentration of 2% (p=0.001). Addition of CHX promoted formation of an inhibition halo in both bacterial strains for all concentrations. The results showed that the best option for clinical use of GIC with CHX is at 0.5% concentration, since antibacterial activity increased and the physical-mechanical properties remained unchanged.

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CHARACTERISTIC OF GLASS IONOMER CEMENT MATERIAL FOR CLINICAL DENTISTRY

Scientific Journal of Tra Vinh University ◽

10.35382/18594816.1.39.2020.571 ◽

2021 ◽

Vol 1 (39) ◽

pp. 83-90

Author(s):

Hoa Thi Hong Huynh ◽

Minh Ngoc Huynh ◽

Minh Quang Do

Keyword(s):

Compressive Strength ◽

Tartaric Acid ◽

Maleic Acid ◽

Glass Powder ◽

Setting Time ◽

Glass Ionomer Cement ◽

Filling Material ◽

Glass Ionomer ◽

Ion Release ◽

Ionomer Cement

Glass ionomer cement (GIC), a thermoplastic polymer, is toughed by ionic bonding is used in dentistry as a filling material. The glass-powder used has some disadvantages such as: poor strength and toughness, and instability in water. Therefore, the aim of this work is to enhance mechanical and fluoride release properties of the GICs by modifying ingredients. The results show that the compressive strength reached to from 60.5 to 86.2 MPa, the setting time met the ISO 9917-1:2007 quality standard. This also suggests that, in addition to 35% PAA in water with Mw of 100,000, 5% of Maleic acid and 5% Tartaric acid to produce GIC which can be used as suitable materials for improving its fluoride ion release over 28 days. The average diameter (dmean) of glass powder for GICs was 14.3 mm; S.P. Surface area was 10,358 cm2=cm3, improvement of liquid composition includes 35% PAA in water with Mw of 100,000, 5% of Maleic acid and 5% Tartaric acid. The compressive strength after curing 28-day reaches from 60.5 to 86.2 MPa and the setting time responds with ISO 9917-1:2007. In conclusion, it was found that the GIC can release fluoride ions (F-) for the during of the examination period.

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Antibacterial activity of glass ionomer cement modified by zinc oxide nanoparticles

Microscopy Research and Technique ◽

10.1002/jemt.22814 ◽

2016 ◽

Vol 80 (5) ◽

pp. 456-461 ◽

Cited By ~ 10

Author(s):

Patrícia Petromilli Nordi Sasso Garcia ◽

Mariana Florian Bell Cardia ◽

Renata Serignoli Francisconi ◽

Lívia Nordi Dovigo ◽

Denise Madalena Palomari Spolidório ◽

...

Keyword(s):

Zinc Oxide ◽

Antibacterial Activity ◽

Zinc Oxide Nanoparticles ◽

Glass Ionomer Cement ◽

Oxide Nanoparticles ◽

Glass Ionomer ◽

Ionomer Cement

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Erratum to “The effect of oxalic acid incorporation on the setting time and strength of a glass-ionomer cement” [Acta Biomaterialia 2 (1) (2006) 109–112]

Acta Biomaterialia ◽

10.1016/j.actbio.2006.02.003 ◽

2006 ◽

Vol 2 (3) ◽

pp. 363

Author(s):

Leon Hugh Prentice ◽

Martin Tyas ◽

Michael F. Burrow

Keyword(s):

Oxalic Acid ◽

Setting Time ◽

Glass Ionomer Cement ◽

Glass Ionomer ◽

Acid Incorporation ◽

Ionomer Cement

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Perbedaan Kebocoran Tepi antara GIC Konvensional dan Resin Modified GIC pada Restorasi Kelas V (Difference on Microleakage of Conventional GIC and Resin Modified GIC in Class V Restoration)

Conservative Dentistry Journal ◽

10.20473/cdj.v6i2.2016.77-81 ◽

2016 ◽

Vol 6 (2) ◽

pp. 77

Author(s):

Aditya Rama Devara ◽

Cecilia G.J Lunardhi ◽

Tamara Yuanita

Keyword(s):

Artificial Saliva ◽

Setting Time ◽

Glass Ionomer Cement ◽

Blue Dye ◽

Glass Ionomer ◽

Class V ◽

Running Water ◽

Significant Difference ◽

The Difference ◽

Ionomer Cement

Background. Microleakage is one of the challenging concerns in direct filling restorations. Restoration material should have good adaptation between the restoration and the cavity walls to seal the cavity in a good way. Glass ionomer cement (GIC) is one of restoration material which indicated for class V cavity. GIC has a good adherence to the cavity wall but fragile to liquid contamination during the setting time. Resin modified glass ionomer cement (RMGIC) is a hybrid glass ionomer cement with the addition of hidroxyethylmethacrylate (HEMA) in the liquid to increase the properties and endurance to liquid contamination. Aim. The aim of this study was to investigate the difference on microleakage of conventional GIC and resin modified GIC in class V restoration. Material and methods. Class V cavities (depth: 2 mm) were prepared on the cervical surface of 32 human first permanent premolars. Teeth were classified into three groups. Group 1: conventional GIC + varnish. Group 2:RMGIC + varnish. All cavities were restored, then stored in artificial saliva at 37ºC for 24 hours. The teeth were immersed in a 1% methylene blue dye solution for 24 hours, and then rinsed in running water, dried, and sectioned longitudinally. The section were assessed for microleakage of dye penetration by two independent evaluators using a digital microscope. Data were collected and statistically analyzed. Results. RMGIC showed no significant difference with conventional GIC. However, there is a slight difference, RMGIC has a slight lower microleakage than conventional GIC. Conclusion. RMGIC showed only slight lower microleakage than conventional GIC, but not significant.

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