Novel nano-hydroxyapatite-silica–added glass ionomer cement for dental application: Evaluation of surface roughness and sol-sorption

2019 ◽  
Vol 28 (5) ◽  
pp. 299-308
Author(s):  
Imran Alam Moheet ◽  
Norhayati Luddin ◽  
Ismail Ab Rahman ◽  
Sam’an Malik Masudi ◽  
Thirumulu Ponnuraj Kannan ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Electron Microscope ◽  
Sol Gel ◽  
Sorption Property ◽  
Glass Ionomer Cement ◽  
Weight Ratio ◽  
Lower Surface ◽  
Glass Ionomer ◽  
One Pot ◽  
Ionomer Cement

The aim of this study was to synthesize and characterize nano-hydroxyapatite-silica (nano-HA-Si) particle, followed by the evaluation of surface roughness and sol-sorption property of conventional glass ionomer cement (cGIC) with the addition of nano-HA-Si. Nano-HA-Si was synthesized by one-pot sol–gel technique. It was then characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, and transmission electron microscope. Experimental nano-HA-Si–added GIC (nano-HA-Si-GIC) was prepared by adding 10% by weight ratio of nano-HA-Si to cGIC powder. The surface roughness of the samples was analyzed using tactile profilometer. Mass stabilization techniques were used to assess sol-sorption. The 10% nano-HA-Si-GIC samples were successfully fabricated. Nano-HA-Si-GIC reported lower surface roughness (0.13 ± 0.01 μm) as compared to cGIC (0.16 ± 0.03 μm). Nano-HA-Si-GIC reported an increase in sol-sorption when compared to cGIC. Incorporation of nano-HA-Si into the formulation of cGIC enhances their physical properties and with slight increase in sol-sorption property. Nano-HA-Si-GIC has the ability to enhance the characteristics of glass ionomer dental restorative materials. Hence, it can be suggested as a potential future restorative material in dentistry.

Structural evaluation of ZnO substitution for CaO in glass ionomer cement synthesized by sol-gel method and their properties

2022 ◽  
Author(s):  
Oranich Thongsri ◽  
Sawitri Srisuwan ◽  
Paritat Thaitalay ◽  
Rawee Dangwiriyakul ◽  
Prasert Aengchuan ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural Evaluation ◽  
Ionomer Cement

In Vitro Effect of Simulated Tooth Brushing and Children’s Mouth Rinses on Physical Properties of Glass Ionomer Cement

2020 ◽  
Vol 44 (5) ◽  
pp. 342-347
Author(s):  
Natyla ML Silva ◽  
Victor G Costa ◽  
Letícia M Gonçalves ◽  
Isabella A Gomes ◽  
Marco Aurélio B Paschoal
Keyword(s):  
Surface Roughness ◽  
Glass Ionomer Cement ◽  
Tooth Brushing ◽  
Control Group ◽  
Glass Ionomer ◽  
Intergroup Comparison ◽  
Vitro Effect ◽  
Dependent Samples ◽  
Ionomer Cement

Objective: The present study investigated the erosive potential of children’s mouthrinses on glass ionomer cement (GIC) samples after simulated toothbrushing. Study design: Forty round-shaped samples of GIC were divided into 3 groups: G1- cetylpyridinium chloride, G2- xylitol and triclosan and G3–Malva sylvestris and xylitol and G4–distilled water as a control group. Prior to the main tests, the samples were submitted to the surface roughness measurement (Ra) and weight analysis (W). Afterward, they were brushed twice day (2× / day) for 15 days and immersed in mouthrinses after the last daily brushing. The final surface roughness (R2) and weight (W2) were determined after completing the tooth brushing-mouth rinsing cycles and the real increase in roughness (ΔRa) and real weight loss (ΔW) were calculated. In addition, stereoscopic images taken at 30× magnification. The data was analyzed by one-way ANOVA and Tukey-test post hoc tests for intergroup comparison and the T-test for dependent samples (α = 0.05). Results: Only group G2 showed increased in roughness ΔRa (1.53 ± 0.94) whereas ΔW values were not significant. However, evident cracks and voids were verified for all tested children’s rinses. Conclusion: Thus, children’s mouthrinse containing xylitol / triclosan increased the GIC roughness, especially when associated with brushing.

Sol–gel-derived bioactive glass nanoparticle-incorporated glass ionomer cement with or without chitosan for enhanced mechanical and biomineralization properties

2017 ◽  
Vol 33 (7) ◽  
pp. 805-817 ◽  
Author(s):  
Dong-Ae Kim ◽  
Jung-Hwan Lee ◽  
Soo-Kyung Jun ◽  
Hae-Won Kim ◽  
Mohamed Eltohamy ◽  
...  
Keyword(s):  
Bioactive Glass ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ionomer Cement

scholarly journals Effect of hydrogen peroxide application on color and surface roughness of two restorative materials

2017 ◽  
Vol 15 (3) ◽  
pp. 185
Author(s):  
Dilcele Silva Moreira Dziedzic ◽  
Lucia Helena Ramos da Silva ◽  
Bruna Luiza do Nascimento ◽  
Marina Samara Baechtold ◽  
Gisele Maria Correr ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Roughness ◽  
Repeated Measures ◽  
Glass Ionomer Cement ◽  
Color Variation ◽  
Glass Ionomer ◽  
Peroxide Bleaching ◽  
Bleaching Procedure ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

Aim: This study investigated the effect of an in-office bleaching technique on lightness, color and surface roughness of two commercially available materials: a resin-modified glass-ionomer cement and a nanohybrid resin composite. Methods: Twelve disk-shaped specimens were prepared with both materials. The samples were bleached with 35% hydrogen peroxide. Bleaching was tested initially onto a smooth surface and later onto a polished one of the same specimens. The effect of the treatments on lightness and color was verified with a spectrophotometer. Surface roughness was measured with a digital surface roughness tester. The data were statistically analyzed by repeated measures ANOVA and post hoc Tukey’s test (alpha = 0.05). Results: Significant variation in lightness and color was observed on the resin-modified glass-ionomer cement after the first bleaching procedure. Roughness increased significantly only after polishing the resin-modified glass-ionomer cement surface. Composite color variation was evident in the last observation period, but roughness and lightness variation due to bleaching and polishing was not significant. Conclusion: The bleaching treatment caused significant color alterations on the materials tested. This study observed that the application of in-office bleaching onto the glass-ionomer cement promoted clinically observable color alteration, and polishing after bleaching is contraindicated for this material.

scholarly journals Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers

2021 ◽  
Author(s):  
Farahnaz Sharafeddin ◽  
Somaye Bahrani
Keyword(s):  
Surface Roughness ◽  
Glass Ionomer Cement ◽  
Study Groups ◽  
Distilled Water ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Dental Restorative ◽  
One Way Anova ◽  
Ionomer Cement

Objectives: Glass ionomer cements (GICs) are among the most popular dental restorative materials, but their use is limited due to their clinical disadvantages. Many efforts have been made to improve the properties of these materials by adding various fillers. Incorporation of hydroxyapatite (HA) into the GICs is considered to improve the physical properties of restorations, and may prevent treatment failure. This study aimed to evaluate the surface roughness (Ra) of a conventional glass ionomer cement (CGIC), a resin-modified glass ionomer (RMGI) and a Zirconomer with and without micro-hydroxyapatite (µHA). Materials and Methods: This experimental study was conducted on 6 groups (n=10) including CGIC, CGIC + µHA, RMGI, RMGI + µHA, Zirconomer, and Zirconomer + µHA. A total of 60 disc-shaped samples (6 mm × 2 mm) were prepared in plastic molds and were stored in distilled water for 24 h. After polishing of the specimens, their Ra was measured by a profilometer in micrometers (µm). The data were analyzed using two and one-way ANOVA, Tukey's HSD test, and independent t-test. Results: Incorporation of µHA resulted in statistically significant differences in Ra between the study groups (P<0.05). Following the incorporation of µHA, the Ra significantly decreased in CGIC (P=0.013) and Zirconomer (P=0.003). However, addition of µHA to RMGI resulted in a significant increase in its Ra (P<0.001). Conclusion: Addition of µHA decreased the Ra of Zirconomer and CGIC, and increased the surface roughness of RMGI samples.

Glass Ionomer Versus Self-adhesive Cement and the Clinical Performance of Zirconia Coping/Press-on Porcelain Crowns

2021 ◽  
Author(s):  
CRG Torres ◽  
DMS Ávila ◽  
LL Gonçalves ◽  
LCF Meirelles ◽  
MC Mailart ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Glass Ionomer Cement ◽  
Tetragonal Zirconia ◽  
United States Public Health ◽  
Resin Cement ◽  
Fisher Exact Test ◽  
Glass Ionomer ◽  
Secondary Caries ◽  
Luting Cement ◽  
Ionomer Cement

SUMMARY Objective: This split-mouth clinical study investigated the effect of luting cement on the performance of veneered yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP) zirconia crowns. Methods and Materials: A total of 60 crowns prepared with Y-TZP coping and press-on porcelain were made with a split-mouth design in 30 participants. The crowns were cemented either with glass ionomer cement (GIC) (Meron, Voco) or with self-adhesive resin cement (Bifix-SE, Voco). The restorations were assessed immediately after treatment and after 6, 12, 24, 36, and 48 months using the modified United States Public Health Service criteria. The parameters analyzed were retention, color stability, marginal discoloration, marginal adaptation, surface roughness, anatomic form, and secondary caries. The differences between the groups were analyzed by the Fisher exact test in each period of evaluation. The survival rate was analyzed with the Kaplan–Meier and log-rank test (α=0.05). Results: After 48 months, 20 participants attended the recall. During the period of evaluation, 1 crown cemented with glass ionomer cement and 1 crown cemented with resin cement lost retention. Color match, marginal discoloration and adaptation, surface roughness, and anatomic form did not change in any of the periods evaluated, and no secondary caries was observed. No significant differences were found between the 2 luting cements for any of the clinical parameters analyzed, nor for the survival rates during the study. Conclusions: The type of cement did not influence the performance of the crowns after 48 months of clinical use. Both cements resulted in adequate retention rates, aesthetic and functional outcomes, and biological response.

scholarly journals Effect Fresh Milk on Surface Roughness of Resin Modified Glass Ionomer Cement

2019 ◽  
Vol 22 (1) ◽  
pp. 12-14
Author(s):  
Astrid Yudhit ◽  
Kholidina Imanda Harahap ◽  
Yuli Ratna Dewi
Keyword(s):  
Surface Roughness ◽  
Primary Teeth ◽  
Glass Ionomer Cement ◽  
Restorative Material ◽  
Glass Ionomer ◽  
Fresh Milk ◽  
Resin Modified Glass Ionomer ◽  
Before And After ◽  
One Way Anova ◽  
Ionomer Cement

Resin modified glass ionomer cement as restorative material used in dentistry especially in primary teeth. Fresh milk is often consumed by children as daily drink and it contains lactic acid. The aim of this study was to evaluate surface roughness of resin modified glass ionomer cement after immersed in fresh milk for 2, 4, and 6 hours. Samples were disc shape resin modified glass ionomer cement with size 5 mm in diameter and 2 mm in thickness. Totally 24 samples were divided into 3 groups (n=8), group immersed for 2 hours, group immersed for 4 hours, and group immersed for 6 hours. Fresh milk was pure cow’s milk that harvest in the morning by the farmer. Surface roughness measurements was done before and after immersed using a profilometer (Surfcorder SE-300, Laboratory Ltd, Japan). Results showed surface roughness change were 0.0217 ± 0.005 μm for groups A, 0.0366 ± 0.006 μm for groups B, and 0.0555 ± 0.004μm for groups of 6 hours. One Way Anova test showed significant differences between groups (p <0.05). It can be concluded that there was significant increased on surface roughness of modified resin ionomer cement after immersed in fresh milk for 2, 4 and 6 hours.    

scholarly journals Changes in the Surface Roughness of Glass Ionomer Cement and Zirconomer after Immersion in Carbonated Beverages

2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Mohammad Chair Effendi ◽  
◽  
Yuli Nugraeni ◽  
Edina Hartami ◽  
Asma Nurul Ummah ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Glass Ionomer Cement ◽  
Raw Material ◽  
Laboratory Research ◽  
Filling Material ◽  
Average Surface Roughness ◽  
Glass Ionomer ◽  
Average Surface ◽  
Carbonated Beverages ◽  
Ionomer Cement

Nano glass ionomer cement (GIC) with nano zirconia as a raw material called zirconium is a newly developed type of restoration/tooth filling material that is used in dentistry. Objective: To examine the effect of carbonated beverages on the surface roughness of Zirconomer and GIC filling materials and determine if there was any difference between them. Methods: This is a true-experimental laboratory research study with a pre-posttest group design. The research samples consisted of 32 samples, 16 GIC samples and 16 Zirconomer samples, further divided into four time-sensitive groups: day 1, day 3, day 5, and day 7. The samples were immersed in artificial saliva and carbonated beverages for 24 hours. Surface roughness was measured using a surface roughness tester. Results: The average surface roughness from day 1 to day 7 of the GIC material immersed in carbonated beverages was 4.17 μm, which is higher than the average surface roughness of Zirconomer (3.091 μm), and the difference was significantly different (pConclusion: Zirconomer was found to be more resistant to carbonated beverages than GIC. There was a positive correlation between the length of immersion time in the carbonated beverages and the surface roughness of GIC and Zirconomer.

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