A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants
Background: Interaction between 2% lidocaine HCl (with and without adrenaline) and sodium hypochlorite (NaOCl) resulted in a toxic precipitate formation. The aim of this in vitro study was to assess the interaction between 4% articaine hydrochloride with adrenaline (AHa) and commonly used endodontic...
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| Format: | Article |
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Wolters Kluwer Medknow Publications
2020-01-01
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| Series: | Dental Research Journal |
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| Online Access: | http://www.drjjournal.net/article.asp?issn=1735-3327;year=2020;volume=17;issue=5;spage=347;epage=353;aulast=Shivaraj |
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| author | Kristam Lakshmi Shivaraj Balasubramanian Saravana Karthikeyan Nandini Suresh Velmurugan Natanasabapathy |
| author_facet | Kristam Lakshmi Shivaraj Balasubramanian Saravana Karthikeyan Nandini Suresh Velmurugan Natanasabapathy |
| author_sort | Kristam Lakshmi Shivaraj |
| collection | DOAJ |
| description | Background: Interaction between 2% lidocaine HCl (with and without adrenaline) and sodium hypochlorite (NaOCl) resulted in a toxic precipitate formation. The aim of this in vitro study was to assess the interaction between 4% articaine hydrochloride with adrenaline (AHa) and commonly used endodontic irrigants 3% NaOCl, 2% chlorhexidine (CHX), and 17% ethylenediaminetetraacetic acid (EDTA) using spectroscopic analyses.
Materials
and Methods: In this in vitro study, 3% NaOCl, 2% CHX, and 17% EDTA were mixed with 4% AHa individually. 1.7 ml of 4% AHa from the cartridge was mixed with 1.7 ml of each test irrigants. The solutions were subjected to a preliminary ultraviolet spectroscopic (UVS) analysis to assess forpotential interactions (if any). If the interaction was detected, the test solutions were further subjected to nuclear magnetic resonance (NMR) analysis for characterization. The precipitate formed (if any) was then subjected to NMR analysis.
Results: UVS analysis revealed a bathochromic shift when 3% NaOCl and 2% CHX were mixed with 4% AHa, respectively. This shift was not observed when EDTA was mixed with 4% AHa. 1H and 13C NMR spectra confirmed the interaction between 3% NaOCl with 4% AHa, which resulted in a precipitate formation, methyl 3-amino-4-methylthiophene-2-carboxylate (MAMC). The analysis of 1H NMR spectra showed peaks at 7.1 ppm, 2.21 ppm, and 9.93 ppm, respectively, which corresponds to aromatic ring protons. A peak at 3.8 ppm was assigned to methyl proton of methyl ester. The characteristic appearance of peaks at 14.82 and 51.16 ppm corresponds to aliphatic carbons. The five peaks occurring at 126, 134.5, 139.2, 156.5, and 162.9 ppm correspond to the aromatic carbon atoms present in the thiophene unit. NMR spectra revealed no interaction between 2% CHX and 4% AHa. 1H and 13C NMR spectra confirmed that 3% NaOCl interacted with 4% AHa, leading to the formation of a precipitate MAMC.
Conclusion: 3% NaOCl interacted with 4% AHa leading to the formation of a precipitate MAMC which is reported to exhibit the least toxicity. Until the precipitate is studied further, it would be advisable to avoid the immediate use of NaOCl following administration of intrapulpal anesthetic solution with articaine hydrochloride (with adrenaline). |
| first_indexed | 2024-12-21T01:46:51Z |
| format | Article |
| id | doaj.art-f25a24a7c1f848d395b72ced92b1fa4a |
| institution | Directory Open Access Journal |
| issn | 1735-3327 2008-0255 |
| language | English |
| last_indexed | 2024-12-21T01:46:51Z |
| publishDate | 2020-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Dental Research Journal |
| spelling | doaj.art-f25a24a7c1f848d395b72ced92b1fa4a2022-12-21T19:20:00ZengWolters Kluwer Medknow PublicationsDental Research Journal1735-33272008-02552020-01-0117534735310.4103/1735-3327.294332A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigantsKristam Lakshmi ShivarajBalasubramanian Saravana KarthikeyanNandini SureshVelmurugan NatanasabapathyBackground: Interaction between 2% lidocaine HCl (with and without adrenaline) and sodium hypochlorite (NaOCl) resulted in a toxic precipitate formation. The aim of this in vitro study was to assess the interaction between 4% articaine hydrochloride with adrenaline (AHa) and commonly used endodontic irrigants 3% NaOCl, 2% chlorhexidine (CHX), and 17% ethylenediaminetetraacetic acid (EDTA) using spectroscopic analyses. Materials and Methods: In this in vitro study, 3% NaOCl, 2% CHX, and 17% EDTA were mixed with 4% AHa individually. 1.7 ml of 4% AHa from the cartridge was mixed with 1.7 ml of each test irrigants. The solutions were subjected to a preliminary ultraviolet spectroscopic (UVS) analysis to assess forpotential interactions (if any). If the interaction was detected, the test solutions were further subjected to nuclear magnetic resonance (NMR) analysis for characterization. The precipitate formed (if any) was then subjected to NMR analysis. Results: UVS analysis revealed a bathochromic shift when 3% NaOCl and 2% CHX were mixed with 4% AHa, respectively. This shift was not observed when EDTA was mixed with 4% AHa. 1H and 13C NMR spectra confirmed the interaction between 3% NaOCl with 4% AHa, which resulted in a precipitate formation, methyl 3-amino-4-methylthiophene-2-carboxylate (MAMC). The analysis of 1H NMR spectra showed peaks at 7.1 ppm, 2.21 ppm, and 9.93 ppm, respectively, which corresponds to aromatic ring protons. A peak at 3.8 ppm was assigned to methyl proton of methyl ester. The characteristic appearance of peaks at 14.82 and 51.16 ppm corresponds to aliphatic carbons. The five peaks occurring at 126, 134.5, 139.2, 156.5, and 162.9 ppm correspond to the aromatic carbon atoms present in the thiophene unit. NMR spectra revealed no interaction between 2% CHX and 4% AHa. 1H and 13C NMR spectra confirmed that 3% NaOCl interacted with 4% AHa, leading to the formation of a precipitate MAMC. Conclusion: 3% NaOCl interacted with 4% AHa leading to the formation of a precipitate MAMC which is reported to exhibit the least toxicity. Until the precipitate is studied further, it would be advisable to avoid the immediate use of NaOCl following administration of intrapulpal anesthetic solution with articaine hydrochloride (with adrenaline).http://www.drjjournal.net/article.asp?issn=1735-3327;year=2020;volume=17;issue=5;spage=347;epage=353;aulast=Shivarajanesthesiachlorhexidinelidocainemagnetic resonance spectroscopysodium hypochlorite |
| spellingShingle | Kristam Lakshmi Shivaraj Balasubramanian Saravana Karthikeyan Nandini Suresh Velmurugan Natanasabapathy A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants Dental Research Journal anesthesia chlorhexidine lidocaine magnetic resonance spectroscopy sodium hypochlorite |
| title | A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants |
| title_full | A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants |
| title_fullStr | A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants |
| title_full_unstemmed | A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants |
| title_short | A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants |
| title_sort | spectroscopic assessment of interaction between 4 articaine hydrochloride with adrenaline and various endodontic irrigants |
| topic | anesthesia chlorhexidine lidocaine magnetic resonance spectroscopy sodium hypochlorite |
| url | http://www.drjjournal.net/article.asp?issn=1735-3327;year=2020;volume=17;issue=5;spage=347;epage=353;aulast=Shivaraj |
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