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Tan YZ, Shi RJ, Ke BW, Tang YL, Liang XH. Paresthesia in dentistry: The ignored neurotoxicity of local anesthetics. Heliyon 2023; 9:e18031. [PMID: 37539316 PMCID: PMC10395355 DOI: 10.1016/j.heliyon.2023.e18031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 06/20/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
Abstract
Local anesthetics are frequently used by dentists to relieve localized discomfort of the patient and improve treatment conditions. The risk of paresthesia after local anesthesia is frequently encountered in dental clinics. The neurotoxicity of local anesthetics is a disregarded factor in paresthesia. The review summarizes the types of common local anesthetics, incidence and influencing factors of paresthesia after local anesthesia, and systematically describes the neurotoxicity mechanisms of dental local anesthetic. Innovative strategies may be developed to lessen the neurotoxicity and prevent paresthesia following local anesthesia with the support of a substantial understanding of paresthesia and neurotoxicity.
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Affiliation(s)
- Yong-zhen Tan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Rong-jia Shi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo-wen Ke
- Laboratory of Anesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ya-ling Tang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral Pathology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin-hua Liang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Comparative Metabolomics Study of the Impact of Articaine and Lidocaine on the Metabolism of SH-SY5Y Neuronal Cells. Metabolites 2022; 12:metabo12070581. [PMID: 35888705 PMCID: PMC9323911 DOI: 10.3390/metabo12070581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 02/06/2023] Open
Abstract
Articaine (ATC) and lidocaine (LDC) are the local anesthetics (LAs) currently most employed in dentistry. Cases of paresthesia, reported more frequently for ATC, have raised concerns about their potential neurotoxicity, calling for further investigation of their biological effects in neuronal cells. In this work, the impact of ATC and LDC on the metabolism of SH-SY5Y cells was investigated through 1H NMR metabolomics. For each LA, in vitro cultured cells were exposed to concentrations causing 10 and 50% reductions in cell viability, and their metabolic intracellular and extracellular profiles were characterized. Most effects were common to ATC and LDC, although with varying magnitudes. The metabolic variations elicited by the two LAs suggested (i) downregulation of glycolysis and of glucose-dependent pathways (e.g., one-carbon metabolism and hexosamine biosynthetic pathway), (ii) disturbance of branched chain amino acids (BCAA) catabolism, (iii) downregulation of TCA cycle anaplerotic fueling and activation of alternative energy producing pathways, (iv) interference with choline metabolism and (v) lipid droplet build-up. Interestingly, LDC had a greater impact on membrane phospholipid turnover, as suggested by higher phosphatidylcholine to phosphocholine conversion. Moreover, LDC elicited an increase in triglycerides, whereas cholesteryl esters accumulated in ATC-exposed cells, suggesting a different composition and handling of lipid droplets.
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Calixto GMF, Muniz BV, Castro SR, de Araujo JSM, de Souza Amorim K, Ribeiro LNM, Ferreira LEN, de Araújo DR, de Paula E, Franz-Montan M. Mucoadhesive, Thermoreversible Hydrogel, Containing Tetracaine-Loaded Nanostructured Lipid Carriers for Topical, Intranasal Needle-Free Anesthesia. Pharmaceutics 2021; 13:1760. [PMID: 34834175 PMCID: PMC8617820 DOI: 10.3390/pharmaceutics13111760] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 12/04/2022] Open
Abstract
Recent advances have been reported for needle-free local anesthesia in maxillary teeth by administering a nasal spray of tetracaine (TTC) and oxymetazoline, without causing pain, fear, and stress. This work aimed to assess whether a TTC-loaded hybrid system could reduce cytotoxicity, promote sustained permeation, and increase the anesthetic efficacy of TTC for safe, effective, painless, and prolonged analgesia of the maxillary teeth in dental procedures. The hybrid system based on TTC (4%) encapsulated in nanostructured lipid carriers (NLC) and incorporated into a thermoreversible hydrogel of poloxamer 407 (TTCNLC-HG4%) displayed desirable rheological, mechanical, and mucoadhesive properties for topical application in the nasal cavity. Compared to control formulations, the use of TTCNLC-HG4% slowed in vitro permeation of the anesthetic across the nasal mucosa, maintained cytotoxicity against neuroblastoma cells, and provided a three-fold increase in analgesia duration, as observed using the tail-flick test in mice. The results obtained here open up perspectives for future clinical evaluation of the thermoreversible hybrid hydrogel, which contains TTC-loaded NLC, with the aim of creating an effective, topical, intranasal, needle-free anesthesia for use in dentistry.
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Affiliation(s)
- Giovana Maria Fioramonti Calixto
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Bruno Vilela Muniz
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Simone R. Castro
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas-UNICAMP, Campinas 13083-872, Brazil; (S.R.C.); (E.d.P.)
| | - Jaiza Samara Macena de Araujo
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Klinger de Souza Amorim
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Lígia N. M. Ribeiro
- Institute of Biotechnology, Federal University of Uberlandia-UFU, Uberlandia 38405-302, Brazil;
| | | | | | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas-UNICAMP, Campinas 13083-872, Brazil; (S.R.C.); (E.d.P.)
| | - Michelle Franz-Montan
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
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Halling F, Neff A, Ziebart T. Local Anesthetic Usage Among Dentists: German and International Data. Anesth Prog 2021; 68:19-25. [PMID: 33827123 DOI: 10.2344/anpr-67-03-12] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 06/12/2020] [Indexed: 11/11/2022] Open
Abstract
The aim of this study was to analyze the use of dental local anesthetics in Germany compared with international data. The type and distribution of dental local anesthetics and added vasoconstrictors based on a representative sample of German dentists itemized over a period of 7 years (2011 to 2017) were evaluated and statistically analyzed. The results were compared with international dental local anesthetic consumption data published since 2005. With a consistent market share of nearly 98%, articaine was the first-line local dental anesthetic agent in Germany. During the investigation period, German dental local anesthetics with epinephrine 1:200,000 had ∼50% market shares, whereas formulations with epinephrine 1:100,000 had 40% to 45% market shares. Articaine, with market shares between 38% and 81%, was also the preferred anesthetic agent in various other countries, with the notable exceptions of the United Kingdom and the United States, where lidocaine was the preferred local anesthetic agent. Epinephrine was the preferred vasoconstrictor internationally, similar to Germany. The larger market share of higher concentrated epinephrine 1:100,000 was remarkable, considering the increasing number of medically compromised patients. Increased consideration for using agents with reduced dosages of epinephrine (1:200,000) is generally recommended.
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Affiliation(s)
- Frank Halling
- Assistant Professor, Private Practice, Gesundheitszentrum Fulda, Fulda, Germany, and Department of Maxillofacial Surgery, University Hospital, Marburg, Germany
| | - Andreas Neff
- Professor, Department of Maxillofacial Surgery, University Hospital, Marburg, Germany
| | - Thomas Ziebart
- Assistant Professor, Department of Maxillofacial Surgery, University Hospital, Marburg, Germany
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Batista da Silva C, Volpato MC, Muniz BV, dos Santos CP, Serpe L, Ferreira LEN, de Melo NFS, Fraceto LF, Groppo FC, Franz-Montan M. Promising potential of articaine-loaded poly(epsilon-caprolactone) nanocapules for intraoral topical anesthesia. PLoS One 2021; 16:e0246760. [PMID: 33571275 PMCID: PMC7877576 DOI: 10.1371/journal.pone.0246760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/25/2021] [Indexed: 01/12/2023] Open
Abstract
To determine whether the permeation capacity and analgesic efficacy of articaine (ATC) could be increased and cytotoxicity decreased by encapsulation in poly(ɛ-caprolactone) nanocapsules (ATCnano), aiming at local or topical anesthesia in dentistry. Cellular viability was evaluated (using the MTT test and fluorescence microscopy) after 1 h and 24 h exposure of HaCaT cells to ATC, ATCnano, ATC with epinephrine (ATCepi), and ATC in nanocapsules with epinephrine (ATCnanoepi). The profiles of permeation of 2% ATC and 2% ATCnano across swine esophageal epithelium were determined using Franz-type vertical diffusion cells. Analgesic efficacy was evaluated with a von Frey anesthesiometer in a postoperative pain model in rats, comparing the 2% ATC, 2% ATCnano, 2% ATCepi, and 2% ATCnanoepi formulations to 4% ATCepi (a commercially available formulation). We show that use of the nanocapsules decreased the toxicity of articaine (P<0.0001) and increased its flux (P = 0.0007). The 2% ATCepi and 4% ATCepi formulations provided higher analgesia success and duration (P<0.05), compared to 2% ATC, 2% ATCnano, and 2% ATCnanoepi. Articaine-loaded poly(ɛ-caprolactone) nanocapsules constitute a promising formulation for intraoral topical anesthesia (prior to local anesthetic injection), although it is not effective when injected in inflamed tissues for pain control, such as irreversible pulpitis.
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Affiliation(s)
- Camila Batista da Silva
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
- Health Sciences, University of Mogi das Cruzes–UMC, Mogi das Cruzes, São Paulo, Brazil
| | - Maria Cristina Volpato
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
| | - Bruno Vilela Muniz
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
- Itapeva Faculty of Social and Agrarian Sciences—FAIT, Itapeva, São Paulo, Brazil
| | - Cleiton Pita dos Santos
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
| | - Luciano Serpe
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
- Department of Dentistry, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Luiz Eduardo Nunes Ferreira
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
- Laboratory of Inflammation and Immunology, Guarulhos University–UNG, Guarulhos, São Paulo, Brazil
| | - Nathalie Ferreira Silva de Melo
- Department of Environmental Engineering, São Paulo State University, Sorocaba, SP, Brazil
- Department of Immunology and Molecular Biology, São Leopoldo Mandic Research Institute, Campinas, SP, Brazil
| | | | - Francisco Carlos Groppo
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
| | - Michelle Franz-Montan
- Department of Biosciences, Piracicaba Dental School, University of Campinas—UNICAMP, Piracicaba, São Paulo, Brazil
- * E-mail:
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Santos-Sanz L, Toledano-Serrabona J, Gay-Escoda C. Safety and efficacy of 4% articaine in mandibular third-molar extraction: A systematic review and meta-analysis of randomized clinical trials. J Am Dent Assoc 2021; 151:912-923.e10. [PMID: 33228884 DOI: 10.1016/j.adaj.2020.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The authors aimed to assess whether 4% articaine is a safe and effective local anesthetic (LA) for mandibular third-molar extractions. TYPES OF STUDIES REVIEWED The authors searched MEDLINE (PubMed), Cochrane Library, Scopus, and Web of Science databases to identify randomized clinical trials that fulfilled the eligibility criteria. Risk of bias was evaluated using the Cochrane risk-of-bias assessment tool. The authors performed a meta-analysis of safety and efficacy variables comparing 4% articaine with different LAs. RESULTS The authors assessed 482 articles but only 14 randomized clinical trials met the inclusion criteria for review. No statistically significant differences were found among the selected LAs regarding safety. Four percent articaine required fewer reinjections than 2% lidocaine and had a shorter onset time than 2% lidocaine, 0.5% bupivacaine, and 4% lidocaine. Four percent articaine had a longer anesthesia effect than 2% lidocaine and 2% mepivacaine, but a shorter anesthesia effect than 0.5% bupivacaine. PRACTICAL IMPLICATIONS Use of 4% articaine for mandibular third-molar extraction is a safe choice that requires fewer reinjections and has a shorter onset time than other aminoamide-type LAs.
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Abstract
Over the past century, there is perhaps no greater contribution to the practice of clinical dentistry than the development and application of local anaesthesia. What were once considered painful procedures have now been made routine by the deposition and action of local anaesthetics. This article will serve as a review of basic pharmacological principles of local anaesthesia, subsequent sequelae that can arise from their use, considerations when using local anaesthetics, and recent advances in the delivery of local anaesthetics.
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Affiliation(s)
- Derek Decloux
- Discipline of Dental Anaesthesia, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Aviv Ouanounou
- Department of Clinical Sciences (Pharmacology & Preventive Dentistry), Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
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Zhao G, Lu S, Li L, Fan X. Local anesthetic articaine ameliorates LPS-induced acute kidney injury via inhibition of NF-ĸB activation and the NLRP3 inflammasome pathway. J Biochem Mol Toxicol 2020; 34:e22554. [PMID: 32687258 DOI: 10.1002/jbt.22554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/30/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022]
Abstract
The present study was conducted to determine the protective effect of articaine (ART) in an lipopolysaccharide (LPS)-induced acute kidney injury (AKI) animal model. The results suggest ART causes a significant decrease in serum blood urea nitrogen, creatinine, and serum cystatin C level, showing a protective effect against LPS-induced AKI. This has been further supported by histopathological findings of kidney tissues. The level of tumor necrosis factor-α, interleukin (IL)-6, and IL-1β in serum and kidney tissues was remarkably inhibited by ART in a dose-dependent manner. ART causes a significant reduction of malondialdehyde and increases the activities of glutathione and superoxide dismutase with an increase in dose as compared to the LPS-treated group. Moreover, the ART-treated group showed dose-dependent inhibition of LPS-induced nuclear factor-κB activation and TLR4 expression as confirmed by Western blot analysis. The level of Bcl-2 family genes (Bcl-2 and Bax) was restored near to normal by ART. Collectively, all the above results indicated that ART had protective effects against LPS-induced AKI by blocking inflammatory and oxidative responses.
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Affiliation(s)
- Guanjie Zhao
- Department of Nephrology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Shan Lu
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Linlin Li
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaodi Fan
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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Aps J, Badr N. Narrative review: the evidence for neurotoxicity of dental local anesthetics. J Dent Anesth Pain Med 2020; 20:63-72. [PMID: 32395611 PMCID: PMC7193061 DOI: 10.17245/jdapm.2020.20.2.63] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/13/2020] [Accepted: 03/29/2020] [Indexed: 12/25/2022] Open
Abstract
Dental local anesthesia is performed daily on a global scale. Adverse effects are rare, but the topic of neurotoxicity of local anesthetics deserves to be explored, as publications can be controversial and confusing. Therefore, a need was felt to address and question the evidence for potential neurotoxicity of dental local anesthetics. This review aimed to assess the studies published on the neurotoxicity of dental local anesthetics. A Pubmed® search was conducted between January 2019 and August 2019. This revealed 2802 hits on the topic of neurotoxicity or cytotoxicity of the following anesthetics: lidocaine, prilocaine, mepivacaine, articaine, ropivacaine, and bupivacaine. Only 23 papers were deemed eligible for this review: 17 in vitro studies, 3 reviews and 3 audits of national inquiries. The heterogeneous literature on this topic showed that all dental local anesthetics are potentially neurotoxic in a concentration and/or exposure time fashion. There seems no consensus about what cell lines are to be used to investigate the neurotoxicity of local anesthetics, which makes the comparison between studies difficult and ambiguous. However, the bottom line is that all dental local anesthetics have a neurotoxic potential, but that there is no unanimity in the publications about which local anesthetic is the least or the most neurotoxic.
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Affiliation(s)
- Johan Aps
- Division of Oral Diagnostics and Surgical Sciences, University of Western Australia, Perth, Australia
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Ouanounou A, Ng K, Chaban P. Adverse drug reactions in dentistry. Int Dent J 2020; 70:79-84. [PMID: 31944297 DOI: 10.1111/idj.12540] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 11/26/2022] Open
Abstract
An adverse drug reaction (ADR) is an undesirable effect of a drug. ADRs are possible with any medication that is prescribed or administered in the dental office. While most pharmacological agents in use today have favourable drug profiles and are relatively safe, the prudent clinician must be aware of the potential ADRs that can occur and be prepared to manage any complications. Here we review the most commonly used agents in dentistry, namely local anaesthetics, sedatives, analgesics and antibiotics, and their ADRs and management.
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Affiliation(s)
- Aviv Ouanounou
- Department of Clinical Sciences, Pharmacology & Preventive Dentistry, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Kester Ng
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Peter Chaban
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
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