scholarly journals Evaluating the Mechanical Properties, and Calcium and Fluoride Release of Glass-Ionomer Cement Modified with Chicken Eggshell Powder

2018 ◽  
Vol 6 (3) ◽  
pp. 40
Author(s):  
Gehan Allam ◽  
Ola Abd El-Geleel
Keyword(s):  
Mechanical Properties ◽  
Calcium Release ◽  
Glass Ionomer Cement ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Ion Release ◽  
Chicken Eggshell ◽  
Group A ◽  
Group B ◽  
Ionomer Cement

The aim of this study was to test the effect of adding chicken eggshell powder (CESP) to conventional glass-ionomer cement (GIC) on its mechanical properties, and fluoride and calcium release. CESP was added with proportions of 3% and 5% by weight to the powder component of conventional glass-ionomer cement. The specimens were categorized into group A: GIC without CESP; group B: GIC with 3% wt. CESP; and group C: GIC with 5% wt. CESP; there were 12 specimens in each group. Groups B and C showed higher compressive strength values compared to group A. However, microhardness scores were higher in group C compared to groups A and B. As for ion-release results, group B displayed the highest values of fluoride release followed by group C at both 7 and 30 days. Group C showed the highest amount of calcium release followed by both groups B and C at 7 days, while at 30 days, groups A and B showed higher calcium release compared to group C. The mechanical properties of conventional glass-ionomer restorative material were enhanced by the addition of CESP. Moreover, fluoride and calcium release were not compromised by adding CESP.

scholarly journals SEALING ABILITY OF MINERAL TRIOXIDE AGGREGATE, CALCIUM PHOSPHATE CEMENT, AND GLASS IONOMER CEMENT IN THE REPAIR OF FURCATION PERFORATIONS

2013 ◽  
Vol 56 (3) ◽  
pp. 97-103 ◽  
Author(s):  
Prabath Singh ◽  
Joseph Paul ◽  
Abdul Aziz Al-Khuraif ◽  
Sajith Vellappally ◽  
Hassan Suliman Halawany ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Calcium Phosphate Cement ◽  
Glass Ionomer Cement ◽  
Mineral Trioxide Aggregate ◽  
Glass Ionomer ◽  
Dye Penetration ◽  
Sealing Ability ◽  
Group A ◽  
Group B ◽  
Ionomer Cement

Objectives: The purpose of this study was to evaluate the in vitro sealing ability of three repair materials. Mineral trioxide aggregate (MTA; Group A), calcium phosphate cement (CPC; Group B), and light cured glass ionomer cement (GIC; Group C) when used to repair the perforation created in the pulpal floor of fifty extracted human permanent molars. Materials and methods: Preparation of access openings and furcation perforations were done, and the teeth divided into five experimental groups (A, B, C) including two controls (D, E) with ten samples in each group randomly. Following the repair procedure, the pulp chambers and access openings were filled with composite resin and immersed in 2% methylene blue solution for 48 hours. The teeth were sectioned longitudinally and the linear dye penetration measured under a stereo­microscope. Results: The comparison of the linear length of micro-leakage (mm) among the experimental groups revealed no significant difference (p = 0.332). On calculating the percentage of depth of leakage to the total length of the perforation, it was observed that the mean leakage was 35.5% in Group A, 53.6% in Group B and the highest, 87.5% in Group C. The mean of leakage percentage was statistically significant by Kruskal-Wallis test (p = 0.003). The results indicated that the dye penetration used as furcation perforation repair material was least with mineral trioxide aggregate. Comparing the depth of penetration of dye, 50% of the Group A samples showed less than 25% of depth penetration. While 40% of Group B cases had more than 50% dye penetration. In our study, all Group C teeth had ≥ 50% dye penetration. Conclusions: The present study indicated that GIC had the greatest dye penetration followed by CPC and MTA. Mineral trioxide aggregate and calcium phosphate cement had comparatively better sealing ability than glass 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 Antimicrobial Efficacy of Glass Ionomer Cement in Incorporation with Biogenic Zingiber officinale Capped Silver-Nanobiotic, Chlorhexidine Diacetate and Lyophilized Miswak

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 528
Author(s):  
Amal Adnan Ashour ◽  
Sakeenabi Basha ◽  
Nayef H. Felemban ◽  
Enas T. Enan ◽  
Amal Ahmed Alyamani ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Glass Ionomer Cement ◽  
Zingiber Officinale ◽  
Antimicrobial Efficacy ◽  
Combination Group ◽  
Glass Ionomer ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Ionomer Cement

In the present study, Zingiber officinale is used for the synthesis of Zingiber officinale capped silver nanoparticles (ZOE-AgNPs) and compares the antimicrobial efficacy and compressive strength of conventional glass ionomer cement (GIC) combined with ZOE-AgNPs, lyophilized miswak, and chlorhexidine diacetate (CHX) against oral microbes. Five groups of the disc-shaped GIC specimens were prepared. Group A: lyophilized miswak and GIC combination, Group B: ZOE-AgNPs and GIC combinations, Group C: CHX and GIC combination, Group D: ZOE-AgNPs + CHX + GIC; Group E: Conventional GIC. Results confirmed the successful formation of ZOE-AgNPs that was monitored by UV-Vis sharp absorption spectra at 415 nm. The X-ray diffractometer (XRD) and transmission electron microscope (TEM) results revealed the formation of ZOE-AgNPs with a mean size 10.5–14.12 nm. The peaks of the Fourier transform infrared spectroscopy (FTIR) were appearing the involvement of ZOE components onto the surface of ZOE-AgNPs which played as bioreducing, and stabilizing agents. At a 24-h, one-week and three-week intervals, Group D showed the significantly highest mean inhibitory zones compared to Group A, Group B, and Group C. At microbe-level comparison, Streptococcus mutans and Staphylococcus aureus were inhibited significantly by all the specimens tested except group E when compared to Candida albicans. Group D specimens showed slightly higher (45.8 ± 5.4) mean compressive strength in comparison with other groups. The combination of GIC with ZOE-AgNPs and chlorhexidine together enhanced its antimicrobial efficacy and compressive strength compared to GIC with ZOE-AgNPs or lyophilized miswak or chlorhexidine combination alone. The present study revealed that The combination of GIC with active components of ZOE-AgNPs and chlorhexidine paves the way to lead its effective nano-dental materials applications.

Ion release, antimicrobial and physio-mechanical properties of glass ionomer cement containing micro or nanosized hexametaphosphate, and their effect on enamel demineralization

2018 ◽  
Vol 23 (5) ◽  
pp. 2345-2354 ◽  
Author(s):  
Thayse Yumi Hosida ◽  
Alberto Carlos Botazzo Delbem ◽  
Leonardo Antônio Morais ◽  
João Carlos Silos Moraes ◽  
Cristiane Duque ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ion Release ◽  
Enamel Demineralization ◽  
Ionomer Cement

Nanochitosan modified glass ionomer cement with enhanced mechanical properties and fluoride release

2017 ◽  
Vol 104 ◽  
pp. 1860-1865 ◽  
Author(s):  
R. Senthil Kumar ◽  
N. Ravikumar ◽  
S. Kavitha ◽  
S. Mahalaxmi ◽  
R. Jayasree ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Ionomer Cement ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Ionomer Cement

scholarly journals Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5242
Author(s):  
Gabriela Ciavoi ◽  
Ruxandra Mărgărit ◽  
Liana Todor ◽  
Dana Bodnar ◽  
Magdalena Natalia Dina ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Glass Ionomer Cement ◽  
Base Material ◽  
Glass Ionomer ◽  
Base Materials ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Ionomer Cement

The aim of this study was to compare fracture resistance of teeth presenting medium-sized mesial-occlusal-distal (MOD) cavities using different base materials. Thirty-six extracted molars were immersed for 48 h in saline solution (0.1% thymol at 4 °C) and divided into six groups. In group A, the molars were untouched, and in group B, cavities were prepared, but not filled. In group C, we used zinc polycarboxylate cement, in group D—conventional glass ionomer cement, in group E—resin modified glass ionomer cement, and in group F—flow composite. Fracture resistance was tested using a universal loading machine (Lloyd Instruments) with a maximum force of 5 kN and a crosshead speed of 1.0 mm/min; we used NEXYGEN Data Analysis Software and ANOVA Method (p < 0.05). The smallest load that determined the sample failure was 2780 N for Group A, 865 N for Group B, 1210 N for Group C, 1340 N for Group D, 1630 N for Group E and 1742 N for Group F. The highest loads were 3050 N (A), 1040 N (B), 1430 N (C), 1500 N (D), 1790 N (E), and 3320 N (F), the mean values being 2902 ± 114 N (A), 972 ± 65 N (B), 1339 ± 84 N (C), 1415 ± 67 N (D), 1712 ± 62 N (E), and 2334 ± 662 N (F). A p = 0.000195 shows a statistically significant difference between groups C, D, E and F. For medium sized mesial-occlusal-distal (MOD) cavities, the best base material regarding fracture resistance was flow composite, followed by glass ionomer modified with resin, conventional glass ionomer cement and zinc polycarboxylate cement. It can be concluded that light-cured base materials are a better option for the analyzed use case, one of the possible reasons being their compatibility with the final restoration material, also light-cured.

scholarly journals A COMPARATIVE EVALUATION OF FLUORIDE RELEASE, RECHARGE AND RERELEASING ABILITIES OF THREE DIFFERENT RESTORATIVE MATERIALS - AN INVITRO STUDY

2020 ◽  
pp. 1-4
Author(s):  
C Sunil KUMAR ◽  
Obula Reddy ◽  
S. Satta Prasad ◽  
N. Vamsee Krishna ◽  
S. Sunil Kumar ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Fluoride Concentration ◽  
Deionized Water ◽  
Control Group ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Carious Lesions ◽  
Restorative Materials ◽  
Group B ◽  
Ionomer Cement

INTRODUCTION: The most important property of Fluoride is anti-cariogenic property which aids in remineralization of incipient carious lesions in enamel thereby inhibiting enamel demineralization i.e. it helps in arresting or reversal of incipient enamel lesions. A prolonged exposure of incipient carious lesions to uoride in the aqueous phase achieves the cariostatic effect. OBJECTIVES: The aim of the present study is to evaluate the amount of uoride released by three different Restorative Materialsi.e. Glass Ionomer Cement, Resin Modied Glass Ionomer Cement, Cention on 1st,7th and 15th day followed by Recharge and Re-release after recharging with various Flouride applications. MATERIALS AND METHODOLOGY: Fifteen Disk-shaped specimens for each group (8.5 mm diameter; 3 mm thickness) were prepared from three different restorative materials using cylindrical Teon molds according to manufacturer's instructions. The specimens in each individual group were incubated in a 95% relative humid environment at 37°C for 24 hours. Specimens of each group were immersed in 20 ml deionized water in plastic bottles and stored in the incubator at 37°C, Fluoride concentration was measured using a UV Spectrophotometer after 1st ,7th & 15 days. The samples from each group were now divided into: 3 Sub Groups of ve each. Sub Group A - Control group – No topical uoride application. Sub Group B - The samples were recharged with 2% Neutral Sodium Fluoride solution for 4 minutes and washed with copious deionized water for 10 sec and dried on absorbent paper. Sub Group C - The samples were recharged by hand brushing with a Fluoridated brushing Dentifrice for four minutes and then wiped clean with a tissue and rinsed for 10 sec using copious deionized water and dried. Measurement of uoride Re-release is done by UV Spectrophotometer after 1st ,7th and 15thday after recharge.The results were statistically analysed using analysis of variance (one-way ANOVA) and Tukey Kramer multiple comparison tests (p≤0.05). RESULTS: Independent of the observation time period of thestudy the Conventional GIC released the highest amount of uoride followed by RMGIC & CENTION. The initial burst effect was seen with GIC'S but not with RMGIC, CENTION. After topical uoride application uoride re-release was highest in Sub Group B and GIC had a greater recharging ability followed by RMGIC & CENTION. The uoride re-release was greatest on 1st day followed by rapid return tonear exposure levels. CONCLUSION: From the study it was concluded that, the initialFluoride release was highest from Conventional GIC followedby Resin Modied GIC, CENTION. The Fluoride release was high when recharging with professional regime (2%NaF) as compared to home regime (Toothpaste).

scholarly journals Assessment of the Antibacterial Property of Mineral Trioxide Aggregate and Glass Ionomer Cement Mixture

2020 ◽  
pp. 58-64
Author(s):  
Ankita Komal Labh ◽  
Anjaneyulu K. ◽  
Muralidharan N. P.
Keyword(s):  
Antibacterial Property ◽  
Glass Ionomer Cement ◽  
Mineral Trioxide Aggregate ◽  
Diffusion Method ◽  
Filling Material ◽  
Glass Ionomer ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Ionomer Cement

Mineral trioxide aggregate (MTA) is an experimental material used for the capping of pulps as well as a root end filling material. Glass ionomer cement (GIC) is a widely used dental restorative due to its high mechanical strength and antibacterial function. The aim of this study is to assess the antibacterial property of MTA when mixed with GIC. The study comprised four groups with 5 samples each: Group A (MTA), group B (GIC), groups C (MTA+GIC+MTA Liquid) and group D (MTA+GIC+GIC Liquid). All samples were tested against Enterococcus faecalis using Agar well diffusion method in Tryptone soya agar. The One-way ANOVA test was employed using the Statistical Package for Social Sciences (SPSS) for MacOS (Version 19, 2010) with the level of significance set at P<0.05. The average zone of inhibition of group A was 18.6 ± 1.714 mm, group B was 0.4 ± 0.548 mm, group C was 18.6 ± 2.608 mm and group D was 12.8 ± 2.168 mm. Data was statistically significant, F(3,16)=11.631, P<0.001. The antibacterial activity of MTA and MTA when mixed with GIC and MTA liquid is similar but better than other study groups.

scholarly journals Fluoride-Releasing Restorative Materials: The Effect of a Resinous Coat on Ion Release

2020 ◽  
Vol 54 (4) ◽  
pp. 371-381
Author(s):  
Katarina Kelić ◽  
Matej Par ◽  
Kristina Peroš ◽  
Ivana Šutej ◽  
Zrinka Tarle
Keyword(s):  
Glass Ionomer Cement ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Adhesive Systems ◽  
Ion Release ◽  
Dental Adhesives ◽  
Ph Changes ◽  
Ph Values ◽  
Restorative Materials ◽  
Ionomer Cement

Objective: To determine the effect of two adhesive systems and a glass ionomer coating resin on fluoride release and concurrent pH changes over a period of 168 days. Material and methods: Four restorative materials were investigated: a giomer Beautiful II, an “alkasite” material Cention, a conventional composite Filtek Z250, and a glass ionomer cement Fuji IX Extra. Light-cured composite specimens were coated using G-aenial Bond and Clearfil Universal Bond Quick. Glass ionomer specimens were coated using GC Fuji Coat LC. Uncoated specimens were used as references. Quantitative fluoride release and pH changes were measured after 1 h, 24 h, 2 days, 7 days, 28 days, 84 days, and 168 days. Results: The cumulative fluoride release after 168 days increased for uncoated specimens in the following order: Filtek Z250 < Beautifil II < Cention < Fuji IX Extra. A comparatively lower fluoride release was measured for the composites coated with Clearfil Universal Bond Quick, with cumulative values after 168 days increasing in the following order: Filtek Z250 < Beautifil II < Cention. The composites coated with G-aenial Bond showed lower fluoride release compared to the uncoated specimens, with cumulative values increasing in the following order: Filtek Z250 < Beautifil II < Cention. The composites coated with G-aenial Bond showed pH values in the acidic range (4.4- 5.7) after 1 h and 24 h. Conclusion: Fluoride release varied among the investigated restorative materials and depended on the use of dental adhesives and coatings. The pH of all materials, coating types and time points varied.

Sign in / Sign up

Export Citation Format

Share Document