scholarly journals Efficacy of preheated chelating agents on calcium ion removal from instrumented root canals

2021 ◽  
pp. e1015-e1020
Author(s):  
M. Kucuk ◽  
Y. Tunca ◽  
O. Erdem ◽  
S. Cetinkaya ◽  
K. Demirkaya
Keyword(s):  
Calcium Ion ◽  
Chelating Agents ◽  
Root Canals ◽  
Ion Removal

scholarly journals Calcium-Ion Removal from Peat by a Mechanical Filter Cake Washing Process

2007 ◽  
Vol 30 (8) ◽  
pp. 1055-1061 ◽  
Author(s):  
F. Ruslim ◽  
H. Nirschl ◽  
A. Mezhibor ◽  
L. Rikhvanov
Keyword(s):  
Calcium Ion ◽  
Filter Cake ◽  
Ion Removal ◽  
Washing Process ◽  
Mechanical Filter

scholarly journals Glutamate, calcium ion-chelating agents and the sodium and potassium ion contents of tissues from the brain

1970 ◽  
Vol 116 (2) ◽  
pp. 181-187 ◽  
Author(s):  
I. Pull ◽  
H. McIlwain ◽  
R. L. Ramsay
Keyword(s):  
Calcium Ion ◽  
Chelating Agents ◽  
Potassium Ion ◽  
Low Concentrations ◽  
Rate Of Increase ◽  
Other Substances ◽  
Ion Contents ◽  
Bicarbonate Solutions ◽  
The Brain ◽  
Sodium And Potassium

1. Salts of l-glutamate added to cerebral tissues maintained in glucose–saline–bicarbonate solutions cause the Na+ content of the tissues to increase rapidly and K+ to be lost. Entry of 22Na+ also is accelerated by l-glutamate and this acceleration is inhibited by low concentrations of tetrodotoxin. 2. Tissue Na+ content and its rate of increase after the addition of l-glutamate are affected by the Ca2+ of incubation media. 3. Very rapid and extensive entry of Na+ to the tissue is caused by EDTA, and a moderate entry by citrate and ATP. Calculations of the concentration of free Ca2+ in media after these additions indicate that Na+ entry is sometimes associated with low Ca2+ concentration, but that other substances, especially l-glutamate, act without greatly diminishing Ca2+ concentration. 4. Experiments with 2,4-dinitrophenol and valinomycin are also reported and aspects of the Na+ entry formulated and discussed.

Sodium-Modified Vermiculite for Calcium Ion Removal from Aqueous Solution

2019 ◽  
Vol 58 (22) ◽  
pp. 9380-9389
Author(s):  
Roberto R. C. Lima ◽  
Paulo Douglas S. de Lima ◽  
Vitor Rodrigues Greati ◽  
Paulla B. F. de Sousa ◽  
Gabriel V. S. Medeiros
Keyword(s):  
Aqueous Solution ◽  
Calcium Ion ◽  
Ion Removal

Residual Activity of Chelating Agents and their Combinations with Cetrimide on Root Canals Infected with Enterococcus faecalis

2012 ◽  
Vol 38 (6) ◽  
pp. 826-828 ◽  
Author(s):  
Carmen María Ferrer-Luque ◽  
Amanda Conde-Ortiz ◽  
María Teresa Arias-Moliz ◽  
Mariano José Valderrama ◽  
Pilar Baca
Keyword(s):  
Enterococcus Faecalis ◽  
Chelating Agents ◽  
Residual Activity ◽  
Root Canals

scholarly journals The usefulness of ascorbic acid degradation to analyze the effectiveness of water filtration in household water filter jugs

2020 ◽  
Vol 66 (3) ◽  
Author(s):  
Karolina Jezierska ◽  
Wojciech Podraza ◽  
Anna Sękowska
Keyword(s):  
Water Quality ◽  
Ascorbic Acid ◽  
Calcium Ion ◽  
Filtration Efficiency ◽  
Water Filtration ◽  
Water Filter ◽  
Ion Removal ◽  
Household Water ◽  
Quality Coefficient ◽  
Water Filters

Introduction: This study aimed to determine whether the degradation of ascorbic acid in aqueous solutions could be used to compare the filtration efficiency of various household water filter jugs.Materials and methods: Based on absorbance measurements of ascorbic acid, a new water quality coefficient (WQC) parameter was defined. Differences between the WQC were determined for 4 different water filters commonly used in household water filter jugs in Poland. In addition, correlations between the WQC, the amount of filtered water (AFW), and a number of other parameters were examined for all 4 filters.Conclusions: Significant differences were found in WQC among the 4 filters. A decreasing efficiency of calcium ion removal from the water was observed with the ongoing use of all 4 filter cartridges. Overall, this method could be a sensitive, simple, fast, eco-friendly, and relatively inexpensive tool for determining the effectiveness of water purification in household water filter jugs, which of course requires further research.

Chemical Interactions among Some Antimicrobial Solutions and Chelating Agents Used in Endodontics for Irrigation of Infected Root Canals

2017 ◽  
Vol 68 (7) ◽  
pp. 1490-1495
Author(s):  
Elena Lacramioara Lisa ◽  
Geta Carac ◽  
Irina Teodora Lupu ◽  
Andrei Iliescu ◽  
Alexandru Andrei Iliescu
Keyword(s):  
Chelating Agents ◽  
Electrochemical Behaviour ◽  
Pharmaceutical Products ◽  
Spectrophotometric Analysis ◽  
Ph Domain ◽  
Chemical Interactions ◽  
Root Canals ◽  
Antimicrobial Substances ◽  
Root Canal Irrigants ◽  
Infected Root

The root canal irrigants are of utmost importance in the soft tissue dissolving, the removal of microorganisms, hard-tissue debris, and smear layer. This study sets forth to investigate the stability and synergic interactions of different systems with various combinations among antimicrobial substances and chelating agents, frequently used in endodontics for the irrigation of the infected root canals through electrochemical evaluation, physicochemical and spectrophotometric analysis. The pharmaceutical products indicated as the antiseptic solutions (sodium hypochlorite - NaOCl, chlorhexidine - CHX) and chelating agents (EDTA, citric acid - CA) have large pH variations on the entire pH domain. The physicochemical parameters� (pH, conductivity) assessment at the CHX and CA solutions shown good stability in time and also electrochemical behaviour (OCP, CV). There is a dissociation of ions in aqueous medium and a competition of the chemical balances among the structures, as an intense electrochemical activity between the functional groups through the intensification of the anodic current currents, and a shift of the potential registered. This allows the formulation that chemical interactions are not always possible among diverse types of antimicrobial solutions and chelating agents for endodontic use.

Uncoupling of an Epithelial Cell Membrane Junction by Calcium-Ion Removal

Science ◽  
1966 ◽  
Vol 151 (3706) ◽  
pp. 89-91 ◽  
Author(s):  
M. Nakas ◽  
S. Higashino ◽  
W. R. Loewenstein
Keyword(s):  
Epithelial Cell ◽  
Cell Membrane ◽  
Calcium Ion ◽  
Ion Removal

Uncoupling of a Nerve Cell Membrane Junction by Calcium-Ion Removal

Science ◽  
1966 ◽  
Vol 151 (3706) ◽  
pp. 88-89 ◽  
Author(s):  
R. D. Penn ◽  
W. R. Loewenstein
Keyword(s):  
Cell Membrane ◽  
Nerve Cell ◽  
Calcium Ion ◽  
Ion Removal ◽  
Nerve Cell Membrane

scholarly journals The Role of Cone Beam Computed Tomography in Dental Practice: An Endodontic Case Report

2016 ◽  
Vol 12 (33) ◽  
pp. 11
Author(s):  
Monica Monea ◽  
Kovacs Monika ◽  
Nicoleta Suciu ◽  
Pop Mihai
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Chelating Agents ◽  
Cone Beam ◽  
New Techniques ◽  
Root Canals ◽  
Anterior Teeth ◽  
Difficult Cases

We aim to present a case of obliterated root canal which was successfully treated in our dental faculty using these new techniques. Teeth with calcified root canals referred for endodontic treatment pose pa rticular diagnostic and treatment challenges. Usually these are intact traumatized anterior teeth without symptoms except of slight discoloration, without apical radiolucency. The thorough knowledge of endodontic anatomy and the use of modern equipment as the cone beam computed tomography (CBCT) and operating microscope are the basis for long term clinical and radiological success of these cases. The use of rotary endodontic instrumentation in conjunction with chelating agents as EDTA have been advocated for the endodontic instrumentation of narrow or obliterated root canals, where the apical dentin is usually more mineralized. CBCT images offered superior information in comparison to conventional radiographs but it must be taken into consideration only for difficult cases, due to higher radiation dose and costs.

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