The Possible Effect of an Anti-Oxidant Addition to Two Dental Irrigants on Surface Morphology and Elemental Profile of Radicular Dentin In Vitro Study using Scanning Electron Microscope and Energy-Dispersive X-ray Analysis
CAROLINE MAGED YOANNIES A. MASSIEH;
Abstract
The principle objective of endodontic treatment is to achieve a
clean environment in the root canal to minimize any risk which leads to
unsuccessful treatment results. Because of the anatomical complexity of the
root canal system, irrigants are used to supplement mechanical preparation
of root canals.
To effectively clean and sterilize the root canal system, an irrigant
ought to be able to disinfect and penetrate dentin and its tubules, offer
long-term antibacterial impact (substantivity) and remove the smear layer
produced by the mechanical instrumentation. Moreover, it should have no
adverse effects on dentin or the curing and sealing of filling materials.
The changes in mechanical characteristics of dentin as a result of
root canal irrigants and dressings are almost certain as a result of the
changes in chemical and structural composition of radicular dentinal
surface, hence altering its permeability and solubility properties, and
thereby affecting the adhesion of materials to the dentin surface.
Some endodontic irrigants may lead to reduced bond strength
between dentin and resin cements due to production of reactive oxygen
species (free radicals), which inhibit polymerization of the resin-based
dental materials and hence affect the bond strength. Hence,
antioxidants/ROS scavengers are of prime importance for preventing and
controlling various diseases by counteracting ROS formation. Antioxidants
are helpful in preventing the harmful effects of ROS by reacting with
oxygen.
Sodium Hypochlorite (NaOCl) has been the most commonly used
root canal irrigant. NaOCl dissolves organic tissue effectively (less so vital
pulp tissue) and kills bacteria and yeasts.
Summary
74
Chlorhexidine Gluconate (CHX) has been utilized for the past 50
years for caries prevention, in periodontal treatment and as an oral
antiseptic mouthwash. It has a broad spectrum antibacterial activity,
clean environment in the root canal to minimize any risk which leads to
unsuccessful treatment results. Because of the anatomical complexity of the
root canal system, irrigants are used to supplement mechanical preparation
of root canals.
To effectively clean and sterilize the root canal system, an irrigant
ought to be able to disinfect and penetrate dentin and its tubules, offer
long-term antibacterial impact (substantivity) and remove the smear layer
produced by the mechanical instrumentation. Moreover, it should have no
adverse effects on dentin or the curing and sealing of filling materials.
The changes in mechanical characteristics of dentin as a result of
root canal irrigants and dressings are almost certain as a result of the
changes in chemical and structural composition of radicular dentinal
surface, hence altering its permeability and solubility properties, and
thereby affecting the adhesion of materials to the dentin surface.
Some endodontic irrigants may lead to reduced bond strength
between dentin and resin cements due to production of reactive oxygen
species (free radicals), which inhibit polymerization of the resin-based
dental materials and hence affect the bond strength. Hence,
antioxidants/ROS scavengers are of prime importance for preventing and
controlling various diseases by counteracting ROS formation. Antioxidants
are helpful in preventing the harmful effects of ROS by reacting with
oxygen.
Sodium Hypochlorite (NaOCl) has been the most commonly used
root canal irrigant. NaOCl dissolves organic tissue effectively (less so vital
pulp tissue) and kills bacteria and yeasts.
Summary
74
Chlorhexidine Gluconate (CHX) has been utilized for the past 50
years for caries prevention, in periodontal treatment and as an oral
antiseptic mouthwash. It has a broad spectrum antibacterial activity,
Other data
| Title | The Possible Effect of an Anti-Oxidant Addition to Two Dental Irrigants on Surface Morphology and Elemental Profile of Radicular Dentin In Vitro Study using Scanning Electron Microscope and Energy-Dispersive X-ray Analysis | Authors | CAROLINE MAGED YOANNIES A. MASSIEH | Issue Date | 2017 |
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