scholarly journals Solubility and porosity of new nanostructured calcium silicate cement

2014 ◽  
Vol 61 (4) ◽  
pp. 190-195
Author(s):  
Tatjana Stanic ◽  
Violeta Pavlovic ◽  
Vukoman Jokanovic ◽  
Marija Zivkovic-Sandic ◽  
Slavoljub Zivkovic
Keyword(s):  
Physical Properties ◽  
Calcium Silicate ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Cement Material ◽  
Calcium Silicate Cement ◽  
Metal Rings ◽  
Calcium Silicate Cements ◽  
Plastic Containers ◽  
Ionomer Cement

Introduction. Calcium silicate cements are most commonly used materials in endodontics for many indications due to their exceptional biological and physical properties. The aim of this study was to assess solubility and porosity of new experimental nanostructured calcium silicate cement. Material and Methods. A novel nanostructured calcium silicate cement (CS), commercialized calcium silicate cement (Biodentin), traditional glass ionomer cement (GIC) (Micron Superior) and resin-reinforced glass ionomer cement (Fuji VIII) were used in this study. All materials were prepared as per manufactuers? instructions, placed in metal rings of 16?2 mm diameter and kept in an incubator at 37?C for 24 hours. After that they were weighed and put in plastic containers filled with 25 ml of water for additional 24 hours. Then after all samples were weighed again and resorption and solubility were calculated. Results. The highest solubility was found for new CS cement (12.45) followed by conventional GIC Micron Superior (11.5) and Biodentin (6.1) whereas the lowest solubility was for resin reinforced GIC Fuji VIII (3.8). These differences were statistically significant (p<0.005). The highest absorption was also observed in new CS cement (24.15), followed by Biodentin (18.5) and Micron superior (17.95) while the lowest was for GIC Fuji VIII (7.75). These differences were also statistically significant except between Micron Superior and Biodentin. Conclusion. Solubility and porosity of new nanostructured calcium silicate cement were significantly higher than for traditional calcium silicate cement, traditional GIC and resin-reinforced GIC.

scholarly journals Quantitative Evaluation by Glucose Diffusion of Microleakage in Aged Calcium Silicate-Based Open-Sandwich Restorations

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
S. Koubi ◽  
H. Elmerini ◽  
G. Koubi ◽  
H. Tassery ◽  
J. Camps
Keyword(s):  
Calcium Silicate ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Calcium Silicate Cement ◽  
Resin Modified Glass Ionomer ◽  
Glucose Diffusion ◽  
Negative Controls ◽  
Phosphate Buffered Saline ◽  
Ionomer Cement

This study compared thein vitromarginal integrity of open-sandwich restorations based on aged calcium silicate cement versus resin-modified glass ionomer cement. Class II cavities were prepared on 30 extracted human third molars. These teeth were randomly assigned to two groups () to compare a new hydraulic calcium silicate cement designed for restorative dentistry (Biodentine, Septodont, Saint Maur des Fossés, France) with a resin-modified glass ionomer cement (Ionolux, Voco, Cuxhaven, Germany) in open-sandwich restorations covered with a light-cured composite. Positive () and negative () controls were included. The teeth simultaneously underwent thermocycling and mechanocycling using a fatigue cycling machine (1,440 cycles, 5–55°C; 86,400 cycles, 50 N/cm2). The specimens were then stored in phosphate-buffered saline to simulate aging. After 1 year, the teeth were submitted to glucose diffusion, and the resulting data were analyzed with a nonparametric Mann-Whitney test. The Biodentine group and the Ionolux group presented glucose concentrations of 0.074 ± 0.035 g/L and 0.080 ± 0.032 g/L, respectively. No statistically significant differences were detected between the two groups. Therefore, the calcium silicate-based material performs as well as the resin-modified glass ionomer cement in open-sandwich restorations.

scholarly journals Antibacterial Activity and Physical Properties of Glass-ionomer Cements Containing Antibiotics

10.2341/08-30 ◽  
2009 ◽  
Vol 34 (1) ◽  
pp. 18-23 ◽  
Author(s):  
C. Yesilyurt ◽  
K. Er ◽  
T. Tasdemir ◽  
K. Buruk ◽  
D. Celik
Keyword(s):  
Antibacterial Activity ◽  
Physical Properties ◽  
Clinical Relevance ◽  
Glass Ionomer Cement ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Ionomer Cement

Clinical Relevance The incorporation of low quantity antibiotics into glass-ionomer cement can be effective for use with the ART approach.

Interfacial Properties of Three Different Bioactive Dentine Substitutes

2013 ◽  
Vol 19 (6) ◽  
pp. 1450-1457 ◽  
Author(s):  
Elizabeta S. Gjorgievska ◽  
John W. Nicholson ◽  
Sonja M. Apostolska ◽  
Nichola J. Coleman ◽  
Samantha E. Booth ◽  
...  
Keyword(s):  
Particle Size ◽  
Ion Exchange ◽  
Calcium Silicate ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Longitudinal Axis ◽  
Glass Ionomer ◽  
Bioactive Materials ◽  
Calcium Silicate Cements ◽  
Tooth Repair

AbstractThree different bioactive materials suitable as dentine substitutes in tooth repair have been studied: glass-ionomer cement, particulate bioglass, and calcium-silicate cement. On 15 permanent human molars, Class V cavities were prepared and the bottom of each cavity was de-mineralized by an artificial caries gel. After the de-mineralization, the teeth were restored with: (1) Bioglass®45S5 and ChemFil® Superior; (2) Biodentine™ and ChemFil® Superior; and (3) ChemFil® Superior for a complete repair. The teeth were stored for 6 weeks in artificial saliva, then cut in half along the longitudinal axis: the first half was imaged in a scanning electron microscope (SEM) and the other half was embedded in resin and analyzed by SEM using energy-dispersive X-ray analysis. The glass-ionomer and the bioglass underwent ion exchange with the surrounding tooth tissue, confirming their bioactivity. However, the particle size of the bioglass meant that cavity adaptation was poor. It is concluded that smaller particle size bioglasses may give more acceptable results. In contrast, both the glass-ionomer and the calcium-silicate cements performed well as dentine substitutes. The glass-ionomer showed ion exchange properties, whereas the calcium silicate gave an excellent seal resulting from its micromechanical attachment.

Physical Properties of Resin-Reinforced Glass Ionomer Cement Modified with Micro and Nano-Hydroxyapatite

2010 ◽  
Vol 10 (8) ◽  
pp. 5270-5276 ◽  
Author(s):  
Jong-Jin Lee ◽  
Yong-Keun Lee ◽  
Byung-Jai Choi ◽  
Jae-Ho Lee ◽  
Hyung-Jun Choi ◽  
...  
Keyword(s):  
Physical Properties ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Ionomer Cement
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