Ion release by endodontic grade glass-ionomer cement

2007 ◽  
Vol 18 (4) ◽  
pp. 649-652 ◽  
Author(s):  
Beata Czarnecka ◽  
Honorata Limanowska-Shaw ◽  
Richard Hatton ◽  
John W. Nicholson
Keyword(s):  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ion Release ◽  
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.

Potassium ion release from a glass ionomer cement matrix

Biomaterials ◽  
2001 ◽  
Vol 22 (6) ◽  
pp. 547-554 ◽  
Author(s):  
J.A. Williams ◽  
R.W. Billington ◽  
G.J. Pearson
Keyword(s):  
Glass Ionomer Cement ◽  
Potassium Ion ◽  
Cement Matrix ◽  
Glass Ionomer ◽  
Ion Release ◽  
Ionomer Cement

Buffering and ion-release by a glass-ionomer cement under near-neutral and acidic conditions

Biomaterials ◽  
2002 ◽  
Vol 23 (13) ◽  
pp. 2783-2788 ◽  
Author(s):  
Beata Czarnecka ◽  
Honorata Limanowska-Shaw ◽  
John W. Nicholson
Keyword(s):  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ion Release ◽  
Acidic Conditions ◽  
Ionomer Cement

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 CHARACTERISTIC OF GLASS IONOMER CEMENT MATERIAL FOR CLINICAL DENTISTRY

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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