Fluoride ion diffusion from a glass-ionomer cement

2000 ◽  
Vol 27 (7) ◽  
pp. 576-586 ◽  
Author(s):  
S.-Y. Lee ◽  
D.-R. Dong ◽  
H.-M. Huang ◽  
Y.-H. Shih
Keyword(s):  
Glass Ionomer Cement ◽  
Fluoride Ion ◽  
Glass Ionomer ◽  
Ion Diffusion ◽  
Ionomer Cement

scholarly journals Effects of Powdery Cellulose Nanofiber Addition on the Properties of Glass Ionomer Cement

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3077 ◽  
Author(s):  
Takako Nishimura ◽  
Yukari Shinonaga ◽  
Chikoto Nagaishi ◽  
Rie Imataki ◽  
Michiko Takemura ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Cellulose Nanofibers ◽  
Glass Ionomer Cement ◽  
Chemical Properties ◽  
Fluoride Ion ◽  
Strength Testing ◽  
Glass Ionomer ◽  
Ion Release ◽  
Diametral Tensile Strength ◽  
Ionomer Cement

In this study, we aimed to evaluate the effect of the addition of powdery cellulose nanofibers (CNFs) on the mechanical properties of glass ionomer cement (GIC) without negatively affecting its chemical properties. Commercial GIC was reinforced with powdery CNFs (2–8 wt.%) and characterized in terms of flexural strength, compressive strength, diametral tensile strength, and fluoride-ion release properties. Powdery CNFs and samples subjected to flexural strength testing were observed via scanning electron microscopy. CNF incorporation was found to significantly improve the flexural, compressive, and diametral tensile strengths of GIC, and the corresponding composite was shown to contain fibrillar aggregates of nanofibers interspersed in the GIC matrix. No significant differences in fluoride-ion release properties were observed between the control GIC and the CNF-GIC composite. Thus, powdery CNFs were concluded to be a promising GIC reinforcement agent.

Factors relating to the rate of fluoride-ion release from glass-ionomer cement

1982 ◽  
Vol 10 (4) ◽  
pp. 333-341 ◽  
Author(s):  
M. Cranfield ◽  
A.T. Kuhn ◽  
G.B. Winter
Keyword(s):  
Glass Ionomer Cement ◽  
Fluoride Ion ◽  
Glass Ionomer ◽  
Ion Release ◽  
Ionomer Cement

scholarly journals Biophysical and Fluoride Release Properties of a Resin Modified Glass Ionomer Cement Enriched with Bioactive Glasses

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 494
Author(s):  
Ascensión Vicente ◽  
Francisco Javier Rodríguez-Lozano ◽  
Yolanda Martínez-Beneyto ◽  
María Jaimez ◽  
Julia Guerrero-Gironés ◽  
...  
Keyword(s):  
Cell Migration ◽  
Bond Strength ◽  
Glass Ionomer Cement ◽  
Fluoride Ion ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Ion Release ◽  
Bioactive Glasses ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

The aim of this study was to evaluate the bond strength, microleakage, cytotoxicity, cell migration and fluoride ion release over time from a resin-modified glass-ionomer cement (RMGIC) enriched with bioactive glasses (BAGs) and a nanohybrid restorative polymer resin agent used as adhesion material in the cemented brackets. One hundred and twenty bovine lower incisors were divided into three groups: (Transbond Plus Self Etching Primer (TSEP)/Transbond XT (TXT), TSEP/ACTIVA, orthophosphoric acid gel/ACTIVA) and brackets were bonded. A bond strength test and microleakage test were applied. A fluoride release test was applied after 60 days for the TXT and ACTIVA group. To evaluate cytotoxicity and cell migration, a cell viability and scratch migration assay were done for each group. p values < 0.05 were considered significant. Regarding bond strength and microleakage test, no significant differences were found between TSEP/TXT and TSEP/ACTIVA. At 6.4 pH, ACTIVA showed a higher degree of fluoride ion release, which increased with acid pH (3.5), with a maximum fluoride secretion at 30 days. MTT assay revealed that TXT reduces the viability of gingival cells with significant differences (p < 0.001) compared to the untreated cells (control group). ACTIVA provides optimal adhesive and microfiltration properties, releases substantial amounts of fluoride ions in both acid and neutral media, and its biocompatibility is greater than that of traditional composite resin adhesive systems.

scholarly journals Effects of Nanohydroxyapatite Incorporation into Glass Ionomer Cement (GIC)

Minerals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 9
Author(s):  
Rishnnia Murugan ◽  
Farinawati Yazid ◽  
Nurrul Shaqinah Nasruddin ◽  
Nur Najmi Mohamad Anuar
Keyword(s):  
Glass Ionomer Cement ◽  
High Stress ◽  
Antibacterial Properties ◽  
Ease Of Use ◽  
Biologically Active ◽  
Fluoride Ion ◽  
Glass Ionomer ◽  
Hydroxyapatite Nanoparticles ◽  
Ion Release ◽  
Ionomer Cement

Glass ionomer cement (GIC) or polyalkenoate cement is a water-based cement that is commonly used in clinical dentistry procedures as a restorative material. It exhibits great properties such as fluoride-ion release, good biocompatibility, ease of use and great osteoconductive properties. However, GIC’s low mechanical properties have become a major drawback, limiting the cement’s usage, especially in high stress-bearing areas. Nanohydroxyapatite, which is a biologically active phosphate ceramic, is added as a specific filler into glass ionomer cement to improve its properties. In this review, it is shown that incorporating hydroxyapatite nanoparticles (nHA) into GIC has been proven to exhibit better physical properties, such as increasing the compressive strength and fracture toughness. It has also been shown that the addition of nanohydroxyapatite into GIC reduces cytotoxicity and microleakage, whilst heightening its fluoride ion release and antibacterial properties. This review aims to provide a brief overview of the recent studies elucidating their recommendations which are linked to the benefits of incorporating hydroxyapatite nanoparticles into glass ionomer cement.

scholarly journals Kadar kelarutan fluor Glass Ionomer Cement setelah perendaman air sungai dan akuades

2016 ◽  
Vol 2 (2) ◽  
pp. 95
Author(s):  
Phradina Fili Septishelya ◽  
Muhammad Yanuar Ichrom Nahzi ◽  
Nurdiana Dewi
Keyword(s):  
River Water ◽  
Glass Ionomer Cement ◽  
T Test ◽  
P Value ◽  
Fluoride Ion ◽  
Glass Ionomer ◽  
Acid Ph ◽  
Significant Difference ◽  
Acidic Nature ◽  
Ionomer Cement

The Level of Fluor Solubility of Glass Ionomer Cement after submergence in the river water and aquadest GIC (GIC) is a restoration material that has a number of adhesive characteristics, tooth-coloured, and can release fluoride ion influenced by pH. The river water of Anjir Pasar village has acidic nature with pH as low 3. Acid pH can increase Fluor ion solubility in GIC. The aim of the study was to find difference of fluor ion solubility of GIC after submergence in the river water and aquadest. This study used GIC samples with the diameter of 5 mm and thickness of 2 mm. One group was soaked in river water and another group was soaked in aquadest for 7 days before conducting the measurement of the fluor ion solubility. The data were analysed by parametric Independent T-Test 95% (α=0.05) and it was found p value = 0.002 (p<0.05). The result indicated a significant difference of fluor ion solubility between GIC after submergence in river water and aquadest. It can be concluded that there is a significant difference of fluor ion solubility of GIC in which submergence in the river water was found higher than that of aquadest.ABSTRAKGlass Ionomer Cement (GIC) merupakan bahan restorasi yang memiliki sifat adhesif, sewarna dengan gigi dan memiliki kemampuan pelepasan ion fluor yang dipengaruhi derajat keasaman (pH). Air sungai Desa Anjir Pasar memiliki sifat yang asam dengan pH 3. Derajat keasaman (pH) asam dapat meningkatkan kadar kelarutan ion fluor pada GIC. Tujuan penelitian ini untuk mengetahui perbedaan kadar kelarutan ion fluor pada GIC setelah perendaman dalam air sungai Desa Anjir Pasar dan akuades. Penelitian ini menggunakan sampel GIC dengan diameter 5 mm dan ketebalan 2 mm. Masing-masing kelompok direndam dalam air sungai dan akuades selama 7 hari kemudian dihitung kadar kelarutan ion fluornya. Data diuji menggunakan analisis parametrik Independent T-Test 95% (α=0,05) dan didapatkan p=0,002 (p<0,05). Dari hasil tersebut diketahui bahwa terdapat perbedaan bermakna antara kadar kelarutan ion fluor setelah perendaman air sungai dengan kadar kelarutan ion fluor setelah perendaman akuades. Disimpulkan bahwa terdapat perbedaan yang signifikan antara kadar kelarutan ion fluor pada GIC setelah perendaman dalam air sungai Desa Anjir Pasar Barito Kuala yang lebih tinggi daripada setelah perendaman dalam akuades.

Glass ionomer cement: evidence pointing to fluorine release in the form of monofluorophosphate in addition to fluoride ion

Biomaterials ◽  
2004 ◽  
Vol 25 (17) ◽  
pp. 3399-3402 ◽  
Author(s):  
R.W Billington ◽  
J.A Williams ◽  
A Dorban ◽  
G.J Pearson
Keyword(s):  
Glass Ionomer Cement ◽  
Fluoride Ion ◽  
Glass Ionomer ◽  
Ionomer Cement

Microleakage of class II restoration with zirconia inlay: An in vitro study

2019 ◽  
pp. 61-67
Author(s):  
Xuan Anh Ngoc Ho ◽  
Anh Chi Phan ◽  
Toai Nguyen
Keyword(s):  
Glass Ionomer Cement ◽  
Class Ii ◽  
Resin Cement ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Group 2 ◽  
Self Etch ◽  
Ionomer Cement ◽  
Group 1 ◽  
Composite Restoration

Background: Class II restoration with zirconia inlay is concerned by numerous studies about the luting coupling between zirconia inlay and teeth. The present study was performed to evaluate the microleakage of Class II zirconia inlayusing two different luting agents and compare to direct restoration using bulk fill composite. Aims: To evaluate the microleakage of Class II restorations using three different techniques. Materials and methods: The study was performed in laboratory with three groups. Each of thirty extracted human teeth was prepared a class II cavity with the same dimensions, then these teeth were randomly divided into 3 groups restored by 3 different approaches. Group 1: zirconia inlay cemented with self-etch resin cement (Multilink N); Group 2: zirconia inlay cemented with resin-modified glass ionomer cement (Fuji Plus); Group 3: direct composite restoration using bulk fill composite(Tetric N-Ceram Bulk Fill). All restorations were subjected to thermal cycling (100 cycles 50C – 55 0C), then immersed to 2% methylene blue solution for 24 hours. The microleakage determined by the extent of dye penetration along the gingival wall was assessed using two methods: quantitative and semi-quantitative method. Results: Among three types of restorations, group 1 demonstrated the significantly lower rate of leakage compared to the others, while group 2 and 3 showed no significant difference. Conclusion: Zirconia inlay restoration cemented with self-etch resin cement has least microleakage degree when compare to class II zirconia inlay restoration cemented with resin-modified glass ionomer cement and direct composite restoration using bulk fill composite. Key words: inlay, zirconia ceramic, class II restoration, microleakage.

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