scholarly journals EFFECT OF ADDITIONS SILVER NANOPARTICLES ON RESIN MODIFIED GLASS - IONOMER MECHANICAL PROPERTIES

2019 ◽  
Vol 7 (12) ◽  
pp. 188-197
Author(s):  
Abdullah S ◽  
◽  
Alahmari Muhannad S ◽  
Alhurayti Mohamed I Ebrahim ◽  
Mohammed K Fahmi
Keyword(s):  
Mechanical Properties ◽  
Silver Nanoparticles ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer

scholarly journals Structural and long-term mechanical properties from a resin-modified glass ionomer cement after various delays of light-activation

2018 ◽  
Vol 37 (6) ◽  
pp. 874-879 ◽  
Author(s):  
Marianne LAGARDE ◽  
Philippe FRANCOIS ◽  
Stéphane LE GOFF ◽  
Jean-Pierre ATTAL ◽  
Elisabeth DURSUN
Keyword(s):  
Mechanical Properties ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Light Activation ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

scholarly journals Assessment of the mechanical properties of glass ionomer cements for orthodontic cementation

2012 ◽  
Vol 17 (6) ◽  
pp. 154-159 ◽  
Author(s):  
Marcel M. Farret ◽  
Eduardo Martinelli de Lima ◽  
Eduardo Gonçalves Mota ◽  
Hugo Mitsuo S. Oshima ◽  
Gabriela Maguilnik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Strength Tests ◽  
Diametral Tensile Strength

OBJECTIVE: To evaluate the mechanical properties of three glass ionomers cements (GICs) used for band cementation in Orthodontics. METHODS: Two conventional glass ionomers (Ketac Cem Easy mix/3M-ESPE and Meron/Voco) and one resin modified glass ionomer (Multi-cure Glass ionomer/3M-Unitek) were selected. For the compressive strength and diametral tensile strength tests, 12 specimens were made of each material. For the microhardness test 15 specimens were made of each material and for the shear bond strength tests 45 bovine permanent incisors were used mounted in a self-cure acrylic resin. Then, band segments with a welded bracket were cemented on the buccal surface of the crowns. For the mechanical tests of compressive and diametral tensile strength and shear bond strength a universal testing machine was used with a crosshead speed of 1,0 mm/min and for the Vickers microhardness analysis tests a Microdurometer was used with 200 g of load during 15 seconds. The results were submitted to statistical analysis through ANOVA complemented by Tukey's test at a significance level of 5%. RESULTS: The results shown that the Multi-Cure Glass Ionomer presented higher diametral tensile strength (p < 0.01) and compressive strength greater than conventional GICs (p = 0.08). Moreover, Ketac Cem showed significant less microhardness (p < 0.01). CONCLUSION: The resin-modified glass ionomer cement showed high mechanical properties, compared to the conventional glass ionomer cements, which had few differences between them.

scholarly journals Mechanical properties of a resin-modified glass ionomer cement for luting: effect of adding spherical silica filler

2010 ◽  
Vol 29 (3) ◽  
pp. 253-261 ◽  
Author(s):  
Lihua E ◽  
Masao IRIE ◽  
Noriyuki NAGAOKA ◽  
Takashi YAMASHIRO ◽  
Kazuomi SUZUKI
Keyword(s):  
Mechanical Properties ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Silica Filler ◽  
Spherical Silica ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

scholarly journals RESIN MODIFIED GLASS IONOMER CEMENT SEBAGAI MATERIAL ALTERNATIF RESTORASI UNTUK GIGI SULUNG

2014 ◽  
Vol 1 (2) ◽  
pp. 46
Author(s):  
Diana Setya Ningsih
Keyword(s):  
Mechanical Properties ◽  
Primary Teeth ◽  
Glass Ionomer Cement ◽  
Moisture Resistance ◽  
Restorative Material ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
The World ◽  
Paper Review ◽  
Ionomer Cement

Glass ionomer cement (GIC) is a material that can release fluoride to prevent caries especially in primary teeth. One of the developments of glass ionomer cement in the world of pediatry dentistry is resin-modified glass ionomer cement (RMGIC). The resin-modified glass ionomer cement were still maintaining the clinical advantages oforiginal material, such as fluoride realease, good compatibility and aestehetically. The mechanical properties of rmgic is more higher than gic. These materials have a better adhesion, higher moisture resistance, and a longer shelft life. This paper review aims to know the ability RMGIC as alternative restorative material for primary teeth.

scholarly journals Effects of Bacterial Cellulose Nanocrystals on the Mechanical Properties of Resin-Modified Glass Ionomer Cements

2020 ◽  
Author(s):  
Marzieh Moradian ◽  
Mohsen Nosrat Abadi ◽  
Dana Jafarpour ◽  
Maryam Saadat
Keyword(s):  
Mechanical Properties ◽  
Bacterial Cellulose ◽  
Cellulose Nanocrystals ◽  
Modulus Of Elasticity ◽  
Testing Machine ◽  
Control Group ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Level Of Significance

Abstract Objectives The purpose of this study was to evaluate the effect of bacterial cellulose nanocrystals (BCNCs) on the mechanical properties of resin-modified glass ionomer cements (RMGICs) including compressive strength (CS), diametral tensile strength (DTS), and modulus of elasticity (E). Materials and Methods BCNCs were incorporated into RMGIC at various concentrations (0.3, 0.5, and 1 wt%). Unmodified RMGIC was used as the control group. The specimens were stored in distilled water at 37°C for 24 hours. CS and DTS, as well as modulus of elasticity, were evaluated using a universal testing machine. The nanostructure of BCNCs was observed via field emission scanning electron microscopy. Statistical Analysis One-way analysis of variance and post-hoc Tukey tests were used for data analysis. Level of significance was at p < 0.05. Results The addition of BCNCs to RMGIC led to an increase in all of the tested mechanical properties compared with the control group, with a significant increase observed for 1 wt% BCNC. CS and DTS improved up to 23%, and modulus of elasticity increased by 44%. Conclusions The addition of BCNCs to the RMGIC improved the mechanical properties, including CS, elastic modulus, and DTS. Thus, the newly developed RMGICs with BCNCs might represent an ideal and promising novel dental material in restorative dentistry.

Effect of Fluoride on Mechanical Properties of Teeth Demineralized by Use of Orthodontic Appliances

2004 ◽  
Vol 841 ◽  
Author(s):  
Claudia Centeno ◽  
Ulises Ruiz ◽  
Oscar Contreras ◽  
Enrique C. Samano
Keyword(s):  
Mechanical Properties ◽  
Cross Section ◽  
Composite Resin ◽  
Longitudinal Section ◽  
Orthodontic Appliances ◽  
Glass Ionomer ◽  
Resin Cements ◽  
Orthodontic Bracket ◽  
Enamel Demineralization ◽  
Resin Modified Glass Ionomer

ABSTRACTThe risk of dental caries increases with the use of orthodontic appliances, and it does not only depend on a patient's oral hygiene. Caries cause teeth enamel demineralization close to the orthodontic bracket. The hardness of the teeth consequently decreases, and they become brittle and loose. The type of adhesive used to fix brackets may or may not reduce enamel demineralization. Previous studies have shown that a resin-modified glass ionomer (RMGI) inhibits demineralization. The purpose of this work is to evaluate the effect of a fluoride-releasing bracket on mechanical properties of dentin and enamel on regions adjacent to orthodontic brackets bonded with RMGI and composite resin cements. The remineralization effect due to fluoride on teeth was assessed by measuring hardness and reduced elastic modulus on dentin, enamel and dentin-enamel junction (DEJ) around the bracket area by nanoindentation methods. Nanoindentation was performed using a TriboScope from Hysitron. For this purpose two sets of polished samples were prepared: one sample was a cut along a longitudinal section and the other one along a cross-section of a tooth with orthodontic treatment using RMGI. Anisotropy in the mechanical properties of the teeth is observed along each direction.

Sign in / Sign up

Export Citation Format

Share Document