Related Experiment Video
Updated: Jan 23, 2026
07:07
Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice
Published on: January 12, 2017
11.8K
Effect of different chelating agents on dentinal crack formation
Hakan Gokturk1, Ugur Aydin2, Ismail Ozkocak1
1Department of Endodontics, Faculty of Dentistry, Bolu Abant İzzet Baysal University.
Journal of Oral Science
|June 21, 2019
Summary
Using chelating agents during root canal preparation with reciprocating files may reduce tooth cracks. This study evaluated various irrigation solutions and found chelating agents beneficial for minimizing crack formation in incisor teeth.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Root canal preparation using reciprocating instruments can induce cracks.
- Understanding the influence of irrigants on crack formation is crucial for endodontic treatment success.
Purpose of the Study:
- To evaluate crack formation during root canal preparation with reciprocating files.
- To compare the effects of various irrigation solutions and chelating agents on crack incidence.
Main Methods:
- 120 incisor teeth were divided into eight groups, including a control.
- Root canals were prepared using reciprocating instruments with different irrigants: distilled water, sodium hypochlorite, citric acid, maleic acid, peracetic acid, EDTA gel, and EDTA liquid.
- Roots were sectioned at 3, 6, and 9 mm from the apex, and crack numbers were recorded.
Main Results:
- Chelating agents (citric acid, maleic acid, EDTA) showed similar numbers of cracked sections.
- No significant difference in crack formation was observed between the tested chelating agents.
- The use of chelating agents during preparation with reciprocating instruments appeared beneficial in reducing crack formation compared to some other solutions.
Conclusions:
- Chelating agents used during reciprocating root canal preparation may help minimize crack formation.
- The choice of irrigant, particularly chelating agents, can influence the structural integrity of the tooth during endodontic procedures.
Related Concept Videos
01:19Complexation Equilibria: The Chelate Effect
1.2K
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
1.2K
01:28Types of Non-structural Cracks in Concrete
485
Non-structural cracks are primarily of three types: plastic, early-age thermal, and drying shrinkage cracks. Plastic cracks are further classified into plastic shrinkage cracks and plastic settlement cracks.
Plastic shrinkage cracks typically form within hours after the concrete is poured. The concrete's surface dries faster than the bottom, creating tensile stress that the still-plastic concrete cannot withstand, leading to diagonal or randomly patterned cracks on the concrete surface.
Plastic shrinkage cracks typically form within hours after the concrete is poured. The concrete's surface dries faster than the bottom, creating tensile stress that the still-plastic concrete cannot withstand, leading to diagonal or randomly patterned cracks on the concrete surface.
485
01:29Subviral Agents
546
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
546
01:31Formation of Species
44.8K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
44.8K
02:16Solution Formation
37.0K
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective...
This selective...
37.0K
02:37Standard Enthalpy of Formation
49.0K
Enthalpy changes are typically tabulated for reactions in which both the reactants and products are at the same conditions. A standard state is a commonly accepted set of conditions used as a reference point for the determination of properties under other different conditions. For chemists, the IUPAC standard state refers to materials under a pressure of 1 bar and solutions at 1 M and does not specify a temperature. Many thermochemical tables list values with a standard state of 1 atm. Because...
49.0K