Volume 03 Issue 05-2023
1
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
05
Pages:
01-03
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The use of irrigation solutions is an essential step in root canal therapy to disinfect the root canal system and remove
debris. However, these solutions can affect the structure of the root canal dentin, which can have implications for the
success of the treatment. This study aimed to investigate the effects of different irrigation solutions on root canal
dentin. A total of 60 extracted human mandibular molars were randomly divided into four groups and irrigated with
different solutions. The effects of the irrigation solutions on the root canal dentin were evaluated using scanning
electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that sodium hypochlorite had the
most significant effect on the structure of root canal dentin, causing significant widening and irregularity of the
dentinal tubules. Chlorhexidine, either alone or in combination with sodium hypochlorite, had a lesser effect on
dentinal tubules. These findings have implications for the choice of irrigation solutions in root canal therapy, as the
use of sodium hypochlorite may compromise the integrity of the root canal dentin.
KEYWORDS
Irrigation solutions; Root canal dentin; Sodium hypochlorite; Chlorhexidine; Dentinal tubules; Scanning electron
microscopy; Energy-dispersive X-ray spectroscopy; Root canal therapy.
INTRODUCTION
Root canal therapy is a commonly performed dental
procedure that involves the removal of infected pulp
tissue from the inside of a tooth. One of the critical
steps in this procedure is irrigation, which involves the
use of various solutions to clean the root canal system
thoroughly. Irrigation plays a crucial role in eliminating
Research Article
EFFECTS OF IRRIGATION SOLUTIONS ON ROOT CANAL DENTIN
Submission Date:
April 25, 2023,
Accepted Date:
April 30, 2023,
Published Date:
May 06, 2023
Crossref doi:
https://doi.org/10.37547/ajast/Volume03Issue05-01
Rita Leknicke
PhD, Research Associate Lithuanian Energy Institute Laboratory Of Materials Research, Kaunas Lithuania
Journal
Website:
https://theusajournals.
com/index.php/ajast
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 03 Issue 05-2023
2
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
05
Pages:
01-03
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
microorganisms, dissolving organic debris, and
removing the smear layer from the root canal walls.
Sodium hypochlorite (NaOCl) and chlorhexidine (CHX)
are two commonly used irrigants due to their
antibacterial
and
tissue-dissolving
properties.
However, the use of these solutions may also have
adverse effects on the dentin structure, particularly
when used in high concentrations or for prolonged
periods. This article aims to review the effects of
irrigation solutions, particularly NaOCl and CHX, on
root canal dentin and discuss the potential implications
of these effects on the success of root canal therapy.
The article will also explore the use of alternative
irrigation solutions and techniques that can minimize
any potential damage to the dentin structure.
METHODS
A total of 60 extracted human mandibular molars with
straight root canals were selected and randomly
divided into four groups (n=15). The four groups were
irrigated with different solutions: group 1 with 5.25%
sodium hypochlorite (NaOCl), group 2 with 2%
chlorhexidine (CHX), group 3 with a mixture of 5.25%
NaOCl and 2% CHX, and group 4 with distilled water
(control). After irrigation, the teeth were sectioned
longitudinally, and the effects of the irrigation
solutions on the root canal dentin were evaluated
using scanning electron microscopy (SEM) and energy-
dispersive X-ray spectroscopy (EDX).
RESULTS
SEM analysis revealed that the dentinal tubules in the
control group were well preserved and open. In
contrast, the dentinal tubules in the NaOCl group were
significantly widened and exhibited irregular shapes.
The dentinal tubules in the CHX group were slightly
widened but showed no irregularities. The dentinal
tubules in the mixture group were wider than those in
the CHX group but not as wide as those in the NaOCl
group. EDX analysis showed that the NaOCl group had
significantly higher levels of calcium and sodium
compared to the control and CHX groups.
DISCUSSION
The results of this study suggest that NaOCl has the
most significant effect on the structure of root canal
dentin, causing significant widening and irregularity of
the dentinal tubules. CHX, either alone or in
combination with NaOCl, had a lesser effect on
dentinal tubules. These findings have implications for
the choice of irrigation solutions in root canal therapy,
as the use of NaOCl may compromise the integrity of
the root canal dentin.
CONCLUSION
In conclusion, the use of different irrigation solutions
has varying effects on root canal dentin. NaOCl has the
most significant effect on the structure of root canal
dentin, causing significant widening and irregularity of
the dentinal tubules. The findings of this study suggest
that CHX may be a better alternative to NaOCl for root
canal irrigation, either alone or in combination with
NaOCl.
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Volume 03 Issue 05-2023
3
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
05
Pages:
01-03
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
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