An In-vitro Assessment of Effect of Interaction Between Local Anaesthetic Solution with Sodium Hypochlorite on the Sealing Ability of Root Canal Obturation
Introduction: Endodontic treatment failures are caused by persistent or secondary infection due to inefficient cleaning or re-infection of the obturated root canal system because of coronal or apical leakage. Intrapulpal Injection (IPI) technique is the most commonly employed supplemental anaest...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2020-07-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/13835/43932_F(KM)_CE[Ra1]_(SHU)_PF1(AKA_KM)_GC(Suk_SL)_PN(SL).pdf |
| Summary: | Introduction: Endodontic treatment failures are caused by
persistent or secondary infection due to inefficient cleaning
or re-infection of the obturated root canal system because of
coronal or apical leakage. Intrapulpal Injection (IPI) technique
is the most commonly employed supplemental anaesthetic
procedure and NaOCl is considered as gold standard irrigating
solution. Therefore, this study was designed to explore the
action of precipitate form by interaction between LA and Sodium
Hypochlorite (NaOCL) on sealing of root canal obturating material.
Aim: To evaluate the effect of precipitate formed by interaction
of local anaesthetic solution and NaOCl on the sealing ability of
root canal obturation, using a push-out bond strength test.
Materials and Methods: This was an in-vitro study from
October 2019 to January 2020. In this study, forty single rooted
premolars were selected and were randomly distributed equally
into 4 groups with 10 specimens in each group, based on the
test solutions employed. All the teeth were decoronated and
the root length was standardised. Group I - irrigated with saline
only, Group II- treated with 2% lidocaine hydrochloride with
adrenaline 1:100,000 (2% LA) followed by 3% NaOCl, Group III
- 2% LA followed by saline and 3% NaOCl, Group IV- 3% NaOCl
followed by saline. All root canals were than instrumented using
ProTaper Universal rotary system upto F3 and obturation was
done using AH plus sealer and GuttaPercha. Sealing ability
was evaluated using a micro push-out bond strength, with the
help of a universal testing machine and data were analysed
statistically.
Results: One-way analysis of variance (ANOVA) showed that
there is highly significant difference among the various groups
(p <0.0001). Within the experimental groups, Group II showed
minimum mean push out bond strength (16.39±2.40) as
compared to Group III (21.83±1.25) and Group IV (22.50±2.12).
Conclusion: Interaction of LA with NaOCl forms precipitate
which blocks the dentinal tubules and reduces the mean push
out bond strength. It is recommended to irrigate thoroughly
with saline after intrapulpal injection (2%LA) before irrigating
with NaOCl. |
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| ISSN: | 2249-782X 0973-709X |