Evaluation of pH and calcium ion release of new root-end filling materials

2009 ◽  
Vol 108 (1) ◽  
pp. 135-139 ◽  
Author(s):  
Bruno Carvalho de Vasconcelos ◽  
Ricardo Affonso Bernardes ◽  
Suyane M. Luna Cruz ◽  
Marco Antonio Húngaro Duarte ◽  
Pedro de Magalhães Padilha ◽  
...  
Keyword(s):  
Calcium Ion ◽  
Ion Release ◽  
Filling Materials

scholarly journals Evaluation of pH, Calcium Ion Release, and Dimensional Stability of an Experimental Silver Nanoparticle-Incorporated Calcium Silicate-Based Cement

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Teena Sheethal Dsouza ◽  
Aditya Shetty ◽  
Neevan Dsouza
Keyword(s):  
Physicochemical Properties ◽  
Dimensional Stability ◽  
Calcium Ion ◽  
Calcium Silicate ◽  
Filling Material ◽  
Ion Release ◽  
Filling Materials ◽  
Sample Test ◽  
Initial Ph ◽  
Experimental Group

An experimental calcium silicate-based root-end filling material incorporated with silver nanoparticles intended for use in periapical surgeries was developed with the purpose to overcome the drawbacks of existing materials and to satisfy the ideal requirements of root-end filling materials. This study was designed to evaluate the physicochemical properties, pH, calcium ion release, and dimensional stability of the experimental cement, and compare the results with commercially available ProRoot MTA (Dentsply). An independent sample test was used to analyze the data. Mean initial pH (immediately after mixing) of the experimental cement was 10.42 ± 0.04 which was higher than that of MTA. However, there was a significant increase in pH of MTA at 1 day, 2 days, and 7 days. Presence of calcium chloride favored the release of calcium ions which was significantly increased in the experimental group at 24 hours. At the end of 30 days, MTA showed a significant expansion when compared to the experimental cement p < 0.001 . In conclusion, the experimental nanoparticle-incorporated calcium silicate-based cement showed clinically acceptable physicochemical properties.

Evaluation of pH and Calcium Ion Release of Root-end Filling Materials Containing Calcium Hydroxide or Mineral Trioxide Aggregate

2009 ◽  
Vol 35 (10) ◽  
pp. 1418-1421 ◽  
Author(s):  
Mário Tanomaru-Filho ◽  
Frederico Bordini Chaves Faleiros ◽  
Juliana Nogueira Saçaki ◽  
Marco Antonio Hungaro Duarte ◽  
Juliane Maria Guerreiro-Tanomaru
Keyword(s):  
Calcium Hydroxide ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Ion Release ◽  
Filling Materials

pH and calcium ion release of 2 root-end filling materials

2003 ◽  
Vol 95 (3) ◽  
pp. 345-347 ◽  
Author(s):  
Marco Antonio Hungaro Duarte ◽  
Ana Claudia Cardoso de Oliveira Demarchi ◽  
José Carlos Yamashita ◽  
Milton Carlos Kuga ◽  
Sylvio de Campos Fraga
Keyword(s):  
Calcium Ion ◽  
Ion Release ◽  
Filling Materials

scholarly journals Physical, Chemical, Mechanical, and Biological Properties of Four Different Commercial Root-End Filling Materials: A Comparative Study

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1693
Author(s):  
Tae-Yun Kang ◽  
Ji-Won Choi ◽  
Kyoung-Jin Seo ◽  
Kwang-Mahn Kim ◽  
Jae-Sung Kwon
Keyword(s):  
Mechanical Properties ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Biological Properties ◽  
Ion Release ◽  
Ph Variation ◽  
Filling Materials ◽  
Setting Times ◽  
Physical Chemical ◽  
Significant Difference

Commercial mineral trioxide aggregate (MTA) materials such as Endocem MTA (EC), Dia-Root Bio MTA (DR), RetroMTA (RM), and ProRoot MTA (PR) are increasingly used as root-end filling materials. The aim of this study was to assess and compare the physicochemical and mechanical properties and cytotoxicity of these MTAs. The film thicknesses of EC and DR were considerably less than that of PR; however, RM’s film thickness was greater than that of PR. In addition, the setting times of EC, DR, and RM were shorter than that of PR (p < 0.05). The solubility was not significantly different among all groups. The three relatively new MTA groups (EC, DR, and RM) exhibited a significant difference in pH variation and calcium ion release relative to the PR group (p < 0.05). The radiopacity of the three new MTAs was considerably less than that of PR. The mechanical strength of RM was not significantly different from that of PR (p > 0.05); however, the EC and DR groups were not as strong as PR (p < 0.05). All MTA groups revealed cytocompatibility. In conclusion, the results of this study confirmed that EC, RM, DR, and PR exhibit clinically acceptable physicochemical and mechanical properties and cell cytotoxicity.

scholarly journals Correction: Rajasekharan, S., et al. Effect of Exposed Surface Area, Volume and Environmental pH on the Calcium Ion Release of Three Commercially Available Tricalcium Silicate Based Dental Cements. Materials 2018, 11, 123

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 340
Author(s):  
Sivaprakash Rajasekharan ◽  
Chris Vercruysse ◽  
Luc Martens ◽  
Ronald Verbeeck
Keyword(s):  
Surface Area ◽  
Calcium Ion ◽  
Tricalcium Silicate ◽  
Exposed Surface ◽  
Ion Release ◽  
Exposed Surface Area

The authors wish to make the following correction to the paper [...]

scholarly journals pH and calcium ion release evaluation of pure and calcium hydroxide-containing Epiphany for use in retrograde filling

2011 ◽  
Vol 19 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Mário Tanomaru-Filho ◽  
Juliana Nogueira Saçaki ◽  
Frederico Bordini Chaves Faleiros ◽  
Juliane Maria Guerreiro-Tanomaru
Keyword(s):  
Calcium Hydroxide ◽  
Calcium Ion ◽  
Ion Release ◽  
Retrograde Filling

scholarly journals THE EFFECT OF LACTIC ACID AND ARTIFICIAL SALIVA SOLUTION IMMERSION TO THE RELEASE OF CALCIUM IONS ON BIOACTIVE RESIN

2021 ◽  
Vol 6 (2) ◽  
pp. 190
Author(s):  
Dewi Puspitasari ◽  
Nurah Tajjalia ◽  
Diana Wibowo ◽  
Agung Satria Wardhana
Keyword(s):  
Lactic Acid ◽  
Acid Solution ◽  
Calcium Ions ◽  
Calcium Ion ◽  
Artificial Saliva ◽  
Distilled Water ◽  
Acid Condition ◽  
Ion Release ◽  
Lactic Acid Solution ◽  
Solution Increase

Background: Bioactive resin can release calcium ions when contact with solution media, even in acid condition. In the oral cavity, pH may change into acid condition due to the metabolic results of Streptococcus mutans. The bacteria metabolize carbohydrates into organic acids, one of which is lactic acid. Purpose: Analyze the effect of lactic acid solution and artificial saliva on the number of the release of calcium ions of bioactive resin. Methods: Forty-two specimens (diameter 15 mm x thickness 1 mm; n= 7/group fabricated with Activa™ Bioactive Restorative (Pulpdent). The specimens that meet the criteria were divided into 6 groups. The specimen was immersed for 1 and 7 days in the incubator at 37oC. The number of calcium ion release is measured using titration method. Results: Two Way Anova test and Post Hoc Bonferonni test showed there were significant differences among all group for lactic acid 1 day (4.040 ± 0.360) µg, artificial saliva 1 day (0.640 ± 0.338) µg, distilled water 1 day (1.040 ± 0.504) µg, lactic acid 7 days (5.400 ± 0.312), artificial saliva 7 days (1.640 ± 0.215) µg, distilled water 7 days (3.520± 0.356 µg). Conclusion: There was an influence of lactic acid and artificial saliva on the number of calcium ion releases of bioactive resin. Immersion of bioactive resin in the lactic acid solution increase the calcium ion releases and artificial saliva decrease the calcium ion release compared to distilled water. Keywords: artificial saliva, bioactive resin, calcium ion release, lactic acid

Evaluation of pH and Calcium Ion Release of a Dual-cure Bisphenol A Ethoxylate Dimethacrylate/Mineral Trioxide Aggregate–based Root-end Filling Material

2013 ◽  
Vol 39 (12) ◽  
pp. 1603-1606 ◽  
Author(s):  
Giane da Silva Linhares ◽  
Maximiliano Sérgio Cenci ◽  
César Blaas Knabach ◽  
Camila Mizette Oliz ◽  
Mariana Antunes Vieira ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Ion Release

Association of increased pHi with calcium ion release in skeletal muscle

1978 ◽  
Vol 234 (3) ◽  
pp. C110-C114 ◽  
Author(s):  
R. J. Connett
Keyword(s):  
Skeletal Muscle ◽  
Calcium Ion ◽  
Calcium Release ◽  
Muscle Membrane ◽  
Sartorius Muscle ◽  
Ion Release ◽  
Extracellular Medium ◽  
Dantrolene Sodium ◽  
External Potassium ◽  
Frog Sartorius

The pH difference across the cell membrane of frog sartorius muscle cells was measured with the distribution of 5,5-dimethyl-2,4-oxazolidine-dione (DMO) as the marker. Depolarization of the muscles to values at or below the contraction threshold caused by elevating external potassium up to approximately 20 mM resulted in an internal alkalinization. The change was smaller with superthreshold depolarization (20--30 mM [K+]). The alkalinization was blocked by agents that block calcium release from the sarcoplasmic reticulum (procaine and dantrolene sodium). Other agents that cause calcium release (caffeine, theophylline, and quinine) were found to give alkalinization when tested at concentrations just below the contracture threshold. Increased acidification of the extracellular medium was associated with the internal alkalinization. The data were interpreted as indicating the presence of a calcium-stimulated H+ and/or OH- ion transport system in the muscle membrane.

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