scholarly journals Residual HEMA and TEGDMA Release and Cytotoxicity Evaluation of Resin-Modified Glass Ionomer Cement and Compomers Cured with Different Light Sources

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Murat Selim Botsali ◽  
Adem Kuşgöz ◽  
Subutay Han Altintaş ◽  
Hayriye Esra Ülker ◽  
Mehmet Tanriver ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diode ◽  
Glass Ionomer Cement ◽  
Triethylene Glycol ◽  
Control Group ◽  
Light Sources ◽  
Fibroblast Cells ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

The purpose of this study was first to evaluate the elution of 2-hydroxyethyl methacrylate (HEMA) and triethylene glycol dimethacrylate (TEGDMA) monomers from resin-modified glass ionomer cement (RMGIC) and compomers cured with halogen and light-emitting diode (LED) light-curing units (LCUs). The effect of cured materials on the viability of L929 fibroblast cells was also evaluated. One RMGIC (Ketac N100) and two compomers (Dyract Extra and Twinkystar) were tested. Materials were prepared in teflon disks and light-cured with LED or halogen LCUs. The residual monomers of resin materials in solution were identified using high-performance liquid chromatography. The fibroblast cells’ viability was analyzed using MTT assay. The type of LCU did not have a significant effect on the elution of HEMA and TEGDMA. A greater amount of HEMA than TEGMDA was eluted. The amount of TEGDMA eluted from Twinkystar was greater than Dyract Extra (P<0.05) when cured with a halogen LCU. All material-LCU combinations decreased the fibroblast cells’ viability more than the control group (P<0.01), except for Dyract Extra cured with a halogen LCU (P>0.05). Curing with the LED LCU decreased the cells’ viability more than curing with the halogen LCU for compomers. For Ketac N100, the halogen LCU decreased the cells’ viability more than the LED LCU.

scholarly journals The Effect of Three Dentinal Sealers on Retention of Crowns cemented with Resin-modified Glass Ionomer Cement: An in vitro Study

2015 ◽  
Vol 6 (1) ◽  
pp. 10-15
Author(s):  
Ashish R Jain ◽  
R Pradeep ◽  
Sashi Deepth Reddy Janapala ◽  
P Sesha Reddy
Keyword(s):  
Bond Strength ◽  
Glass Ionomer Cement ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Desensitizing Agents ◽  
Ionomer Cement

ABSTRACT Background Dentinal sealers (desensitizing agents) are used to protect the pulp from possible injurious effects after tooth preparation and also prevent the penetration of dentinal tubules by bacteria and their products which are currently thought to cause most of the pulpal inflammation under the crowns. Aim The purpose of this study is to determine the efficacy of effect of three different desensitizing agents on retention of crowns cemented with resin-modified glass ionomer cement. Materials and methods Forty freshly extracted maxillary first premolars were notched for retention and the teeth specimens were mounted in autopolymerising resin. The axial height of all the specimens was 4 mm with a 20° angle of convergence. Impressions of the prepared teeth were made, later waxed invested and casted. Thirty teeth were coated with three different desensitizing agents were used in this study: Cavity varnish (Namuvar, Deepti Dental Products), Glutaraldehyde (Gluma- Heraeus Kulzer), Resin (AdheSE, Ivoclar Vivadent). Ten teeth were not coated with desensitizing agents to act as control group. Independent T test used to compare the mean values between groups. Results Tensile strength for average surface area of the groups I, II, III and IV are 0.3759, 0.2375, 0.2411, 0.2348 respectively. The t-test shows ‘p’-value is statistically not significant (p < 0.05) for groups II and III, where as in group IV ‘p’-value is statistically significant (p < 0.01). Conclusion The use of AdheSE/resin-based dentinal sealer showed increase in bond strength of the crowns luted with resin-modified glass ionomer cement when compared with control group. This study advocates the use of resin-based sealer or a glutaraldehyde-based sealer before cementation of the crowns. The cavity varnish, however, reduces the bond strength and is not acceptable. How to cite this article Janapala SDR, Reddy PS, Jain AR, Pradeep R. The Effect of Three Dentinal Sealers on Retention of Crowns cemented with Resin-modified Glass Ionomer Cement: An in vitro Study. World J Dent 2015;6(1):10-15.

scholarly journals Microleakage in bonded amalgam restorations using different adhesive materials

2004 ◽  
Vol 15 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Maximiliano Sérgio Cenci ◽  
Evandro Piva ◽  
Fernando Potrich ◽  
Elenita Formolo ◽  
Flávio Fernando Demarco ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Adhesive System ◽  
Control Group ◽  
Blue Dye ◽  
Glass Ionomer ◽  
Resin Cements ◽  
Resin Modified Glass Ionomer ◽  
Amalgam Restorations ◽  
Ionomer Cement ◽  
Adhesive Materials

The aim of this study was to verify the ability of different adhesive materials to prevent microleakage in bonded amalgam restorations. Standard cavities were prepared in both buccal and lingual surfaces of 35 bovine incisors. The gingival wall was located in cementum/dentin and the occlusal wall in enamel. Teeth (n=35) were divided into 5 groups, according to material employed (one glass-ionomer cement, two resin cements, one adhesive system, and Copalex varnish as a control). Following restoration, the teeth were submitted to thermal cycling. The teeth were subsequently immersed in methylene blue dye and sectioned to allow assessment of microleakage. Non-parametric statistical analysis indicated that all materials demonstrated less leakage than the control group (p<0.01). No leakage was found using the resin-modified glass-ionomer cement, which was significantly different from the other adhesive materials (p<0.05). Leakage in enamel was lower than in cementum/dentin margins. It was concluded that bonded amalgam was an effective technique, since all materials prevented microleakage in enamel and cementum/dentin, when compared to the control group, except Panavia in cementum/dentin margins.

scholarly journals Influence of photocuring and storage time on the volumetric change of resin modified glass ionomer cements

2014 ◽  
Vol 2 (5) ◽  
pp. 438
Author(s):  
Ian Vieira ◽  
Maria Atta
Keyword(s):  
Storage Time ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Glass Ionomer ◽  
Volumetric Change ◽  
Volumetric Expansion ◽  
Resin Modified Glass Ionomer ◽  
And Storage ◽  
Ionomer Cement ◽  
Made In

AIM: This study evaluated the effect of photoativation and storage on the hygroscopic expansion of resin modified glass ionomers (Vitremer-3M/ESPE, Fuji II LC-GC Int., Vitro Fil LC-DFL). MATERIAL AND METHODS: The RMGIC were manipulated according to the manufacturer’s instructions, inserted into a mold and kept in a darkness box for 15 minutes. Then, the samples were distributed into four groups (n=5): light-cured for 20s, light-cured for 40s, light-cured for 60s and not light-cured (control group).  Each sample was storage in distilled water at 37ºC. The measurements of volumetric changes were made in three different times of storage: 24 hours, 7 days and 30 days. Volumetric changes were determined using Archimedes principle. Means and standard deviations  values were analyzed by three-way analysis of variance and  Tukey’s test to compare significance between the groups (α=0,05). RESULTS: All materials underwent volumetric expansion after 30 days. Vitremer showed the less expansion when no light-cured. The time of light-cure did not influence the volumetric change, except for Fuji II LC, that showed great expansion when activated for 60s. Vitro Fil LC showed some degree of shrinkage after 7 days. CONCLUSION: This study concluded that photocuring can influence the volumetric change of resin modified glass ionomer cement.

In vitro Evaluation of Topical Fluoride Varnishes Effect on Enamel Demineralization Around Orthodontic Brackets

2018 ◽  
Vol 69 (11) ◽  
pp. 3013-3017
Author(s):  
Roxana Oancea ◽  
Anca Mesaros ◽  
Octavia Iulia Balean ◽  
Angela Codruta Podariu
Keyword(s):  
Resin Composite ◽  
Glass Ionomer Cement ◽  
Orthodontic Brackets ◽  
Fluoride Varnish ◽  
Control Group ◽  
Glass Ionomer ◽  
Mean Values ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

The aim of this in vitro study was to test the effectiveness of applying the fluoride varnish on bracketed teeth with 2 types of bonding agent. 10 patients aged 12-18 (mean age 13.06 +/- 1.72 years) were scheduled to have the four fist premolar teeth extracted. The teeth were dived in 4 groups: 2 experimental and 2 controls. The teeth were cut in half so 80 surfaces were analyzed. The brackets were collated with Transbond XT and Fuji Ortho Lc. For each of the materials that have been used there was a test and a control group. The tests groups received one single application of Duraphat. The content in fluoride was measured by spectrophotometer. The mean values of fluoride indicated an important increase in the fluoride content after using resin modified glass ionomer cement and fluoride varnish. Statistically significant differences were determined between each of the control and treatment group when both materials have been used, after 10 days and one month application of the varnish. The study pointed out that the fluoride varnish combined with resin modified glass ionomer cement is more efficient than the classical resin composite in preventing demineralization around orthodontic brackets.

scholarly journals Pengaruh Perendaman Susu UHT dan Susu Sapi Segar Terhadap Kekasaran Resin-Modified Glass Ionomer Cement

2021 ◽  
Vol 3 (01) ◽  
pp. 29-35
Author(s):  
Fadil Abdillah Arifin ◽  
Erna Irawati ◽  
Indrya Kirana Mattulada ◽  
Sarahfin Aslan ◽  
Risnayanti Anas ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Control Group ◽  
P Value ◽  
Glass Ionomer ◽  
Control Group Design ◽  
Resin Modified Glass Ionomer ◽  
Post Test ◽  
Post Hoc ◽  
One Way Anova ◽  
Ionomer Cement

Pendahuluan: Resin-Modified Glass Ionomer Cement (RMGIC) atau Semen Ionomer Kaca Modifikasi Resin merupakan salah satu bahan restorasi yang digunakan di bidang kedokteran gigi. Pengembangan resin-modified glass ionomer cement dimulai sejak tahun 1967 untuk memperbaiki sifat fisik dan mengurangi sensitivitas air dari glass ionomer cement konvensional. Resin-Modified Glass Ionomer Cement (RMGIC) sebagai bahan kedokteran gigi memiliki beberapa keuntungan yaitu: RMGIC dapat melepaskan fluoride, kekuatan RMGIC lebih besar dibandingkan dengan glass ionomer cement konvensional, dan estetika lebih baik daripada Glass Ionomer Cement. Tujuan Penelitian: Untuk mengetahui pengaruh perendaman susu UHT dan susu sapi segar terhadap resin-modified glass ionomer cement. Metode: Penelitian ini menggunakan metode Eksperimental Laboratorium yaitu pengujian yang dilakukan di laboratorium dengan bentuk penelitian berupa Pre Test-Post Test with Control Group Design. Jenis penelitian yang dilakukan adalah True Eksperimental Laboratorium. Hasil: Berdasarkan uji one way anova sebelum perendaman diperoleh p-valuesebesar 0,795 (p>0,05) Berdasarkan uji one way anova setelah perendaman diperoleh p-value sebesar 0,669 (p>0,05) Berdasarkan uji post hoc multiple comparison diperoleh perbedaan rata-rata antara susu sapi segar dan susu UHT sebesar 0,1114500 , untuk aquades dan susu UHT sebesar -0,022000.  Kesimpulan: Tidak terdapat perubahan yang signifikan terhadap kekasaran resin-modified glass ionomer cement.

scholarly journals The effect of the addition of propolis to resin-modified glass ionomer cement bracket adhesive materials on the growth inhibition zone of Streptococcus mutans

F1000Research ◽  
2020 ◽  
Vol 8 ◽  
pp. 2105
Author(s):  
Stefani Kristanti Saputra ◽  
Darmawan Sutantyo ◽  
Cendrawasih Andusyana Farmasyanti ◽  
Ananto Ali Alhasyimi
Keyword(s):  
Growth Inhibition ◽  
Glass Ionomer Cement ◽  
Inhibition Zone ◽  
Control Group ◽  
Glass Ionomer ◽  
Adhesive Material ◽  
Growth Inhibition Zone ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement ◽  
Adhesive Materials

Background: Orthodontic treatments progress alongside the development of adhesive materials. The present study aimed to determine the antibacterial properties of propolis, a natural product, in a mixture of resin-modified glass ionomer cement by observing the growth inhibition zone of Streptococcus mutans. Methods: This was an in vitro study conducted on 45 samples of adhesive material, which were divided into control group (resin-modified glass ionomer cement bracket adhesive material), two groups of propolis concentrations (15%, and 25%) and duration (0, 15, and 30 days). The antibacterial effect of each sample was evaluated against S. mutans using an agar plate diffusion test. Measurement of the diameter of the growth inhibition zone of S. mutans was carried out. The data obtained were analyzed statisticallyThe significance value of the Kruskal Wallis and Mann-Whitney test was set at p <0.05, while the significance value of the normality and homogeneity test was set at p> 0.05). Datas in this study that were not normally distributed (p = 0.012) but homogeneous (p = 0.110) were analyzed by the Kruskal-Wallis test (p = 0.003) and then the Mann-Whitney test was performed to determine differences in significance between groups. Results: There was a relationship between concentration and duration of propolis to the growth inhibition zone of S. mutans (p=0.003). The addition of 25% propolis concentration inhibited the growth of S. mutans more than the addition of 15% and without propolis (control group). The addition of propolis to resin-modified glass ionomer cement for 15 days was more effective in inhibiting the growth of S. mutans. Conclusion: The addition of propolis to adhesive materials provides an inhibitory effect on the growth of S. mutans, which may be effective in the world of preventive dentistry.

scholarly journals Extract of Propolis on Resin-Modified Glass Ionomer Cement: Effect on Mechanical and Antimicrobial Properties and Dentin Bonding Strength

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Narges Panahandeh ◽  
Fatemeh Adinehlou ◽  
Seyedeh Mahsa Sheikh-Al-Eslamian ◽  
Hassan Torabzadeh
Keyword(s):  
Antibacterial Activity ◽  
Flexural Strength ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Glass Ionomer Cement ◽  
Antimicrobial Properties ◽  
Control Group ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

This study assessed the effect of addition of aqueous extract of propolis in different concentrations on the mechanical and antimicrobial properties of resin-modified glass ionomer cement (RMGIC). In this in vitro study, powder of Fuji II LC RMGIC was mixed with 25% and 50% aqueous extracts of propolis. Samples (n = 15 for shear bond strength, n = 5 for flexural strength, and n = 20 for the antibacterial activity test) were fabricated using this mixture. The buccal and lingual surfaces of 23 premolars were ground to expose dentin. Tygon tubes were filled with cement, bonded to dentin, and subjected to bond or the flexural strength test in a universal testing machine. Antibacterial activity was assessed using the disc diffusion and well-plate techniques against S. mutans. Data were analyzed using one-way ANOVA and Tukey’s test. The three groups showed significant differences ( p  < 0.001). The 50% propolis group had the lowest flexural and shear bond strength. The control group had the highest flexural and shear bond strength. No growth inhibition zone was noted around any of the discs. It can be concluded that addition of propolis to RMGIC did not confer any antibacterial activity against S. mutans and decreased the flexural and shear bond strength of RMGIC.

scholarly journals Pengaruh Perendaman Jus Jeruk Terhadap Kekuatan Tekan Glass Ionomer Cement dan Resin Modified Glass Ionomer Cement

2021 ◽  
Vol 9 (1) ◽  
pp. 1-9
Author(s):  
Claudia Florencita Ediharsi ◽  
Dedi Sumantri ◽  
Arymbi Pujiastuty
Keyword(s):  
Compressive Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Glass Ionomer ◽  
Control Group Design ◽  
Resin Modified Glass Ionomer ◽  
Gold Label ◽  
The Mean ◽  
Ionomer Cement

Glass ionomer cement and resin modified glass ionomer cement are one of the restoration materials that are widely used by dentists. Its presence in the oral cavity causes glass ionomer cement and resin modified glass ionomer cement often in contact with food and beverages such as tangerine juice which can affect the compressive strength. The purpose of this study is to determine the effect of immersion in tangerine juice towards the compressive strength of glass ionomer cement and resin modified glass ionomer. This study was a true experimental with a post test only with control group design. Samples were made from GC Fuji 9 GP and GC Gold Label 2 LC with 36 samples each. Samples were divided into two groups. The first group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) was immersed in tangerine juice for 24 hours in an incubator at 37°C. The second group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) as a control was immersed in artificial saliva for 24 hours in an incubator at 37°C. The compressive strength was determined using a compression machine. The results showed that the mean compressive strength of glass ionomer cement immersed in tangerine juice was 14,03±0,48 MPa and immersed in artifical saliva was 52,08±0,67 MPa. The mean compressive strength of resin modified glass ionomer cement immersed in tangerine juice was 58,98±0,97 MPa and immersed in artifical saliva was 68,28±0,67 MPa. Data were analyzed with Independent T-test showing the results of p<0.05. The conclusion of this study was that there was an effect of immersion in tangerine juice towards the decreasing of the compressive strength of glass ionomer cement and resin modified glass 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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