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Carnamucio F, Foti C, Micale N, Van Pelt N, Matheeussen A, Caljon G, Giuffrè O. Metronidazole Interaction with Cu 2+ and Zn 2+: Speciation Study in Aqueous Solution and Biological Activity Evaluation. ACS OMEGA 2024; 9:29000-29008. [PMID: 38973913 PMCID: PMC11223215 DOI: 10.1021/acsomega.4c04166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/31/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024]
Abstract
Metronidazole (2-methyl-5-nitro-1H-imidazole-1-ethanol, MNZ) is a well-known and widely used drug for its excellent activity against various anaerobic bacteria and protozoa. The purpose of this study is to elucidate the ability of MNZ to form metal complexes with Cu2+ and Zn2+ and to demonstrate that complexation increases its bioactivity profile against different pathogenic microorganisms. The interaction of MNZ with Cu2+ and Zn2+ was investigated in NaCl aqueous solution under different conditions of temperature (15, 25, and 37 °C) and ionic strength (0.15, 0.5, and 1 mol L-1) by potentiometric and spectrophotometric titrations. The obtained speciation models include two species for the Cu2+-containing system, namely, CuL and CuL2, and three species for the Zn2+-containing system, namely, ZnLH, ZnL, and ZnLOH. The formation constants of the species were calculated and their dependence on temperature and ionic strength evaluated. Comparison of the sequestering ability of MNZ under physiological conditions revealed a capacity toward Cu2+ higher than that toward Zn2+. A simulation under the same conditions also showed a significant percentage of the Cu2+-MNZ species. The biological assessments highlighted that the complexation of MNZ with Cu2+ has a relevant impact on the potency of the drug against two Trypanosoma spp. (i.e., T. b. brucei and T. b. rhodesiense) and one gram-(-) bacterial species (i.e., Escherichia coli). It is noteworthy that the increased potency upon complexation with Cu2+ did not result in cytotoxicity against MRC-5 human fetal lung fibroblasts and primary peritoneal mouse macrophages.
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Affiliation(s)
- Federica Carnamucio
- Department
of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences,
School of Pharmacy, Virginia Commonwealth
University, Richmond, Virginia 23284, United States
- Dipartimento
di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d’Alcontres
31, 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento
di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d’Alcontres
31, 98166 Messina, Italy
| | - Nicola Micale
- Dipartimento
di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d’Alcontres
31, 98166 Messina, Italy
| | - Natascha Van Pelt
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre
of Excellence, University of Antwerp, S7, Universiteitsplein 1, 2610 Wilrijk, Antwerp, Belgium
| | - An Matheeussen
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre
of Excellence, University of Antwerp, S7, Universiteitsplein 1, 2610 Wilrijk, Antwerp, Belgium
| | - Guy Caljon
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre
of Excellence, University of Antwerp, S7, Universiteitsplein 1, 2610 Wilrijk, Antwerp, Belgium
| | - Ottavia Giuffrè
- Dipartimento
di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d’Alcontres
31, 98166 Messina, Italy
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Macedo FPG, Soares ADJ, Marceliano-Alves MFV, Martinez E, Lopes R, Bastos LF, Nascimento WM, Limoeiro AG, Dos Frozoni M. The effect of root canal preparation tapers on planktonic bacteria and biofilm reduction in the apical third: A correlative microtomography and microbiological laboratory study. Int Endod J 2024; 57:700-712. [PMID: 38404175 DOI: 10.1111/iej.14052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/05/2024] [Accepted: 02/11/2024] [Indexed: 02/27/2024]
Abstract
AIM To evaluate the influence of different preparation tapers on the reduction in planktonic bacteria and biofilms of Enterococcus faecalis and Candida albicans in the apical third (4 mm) of the mesial roots of mandibular molars, correlating decontamination with canal shape. METHODOLOGY After microtomography analysis for morphological standardization of the canals, 48 mandibular molar roots, each containing two canals (96 canals), were contaminated with E. faecalis and C. albicans and divided into four groups (n = 11) for canal instrumentation using ProDesign Logic 2 files with different tapers G (.03): # 25.03; G (.04): # 25.04; G (.05): # 25.05; and G (.06): # 25.06 and irrigation with 2.5% sodium hypochlorite. Four roots were examined under a scanning electron microscope (SEM) to qualitatively assess biofilm formation. Eight roots were used as the negative control group (samples were not contaminated). Bacteriological samples were taken exclusively from the apical third of the roots before and after chemical-mechanical preparation and bacterial counts were determined (CFU/mL). The final micro-CT scan was used to quantify the volume variation and unprepared canal area in the apical third. Statistical analysis was performed using the Kruskal-Wallis, Student-Newman-Keuls and Wilcoxon tests for analysis of microbiological data. anova and the Tukey or Games-Howell test were used for analysis of micro-CT data and Spearman's test for correlations (α = 5%). RESULTS All groups showed a significant reduction in bacteria (p < .05), with no statistically significant difference between groups. There was no significant difference in per cent volume increase between groups. The unprepared area (Δ%) was affected by the file used (p = .026) and was significantly lower for G (.06) compared to G (.03). There was no statistically significant correlation among bacterial reduction, volume and unprepared area (p > .05). CONCLUSION The different preparation tapers influenced root canal shaping in the apical third but did not improve decontamination in this region.
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Affiliation(s)
| | - Adriana de Jesus Soares
- Department of Endodontics, Piracicaba Dental School, Campinas State University, Piracicaba, São Paulo, Brazil
| | - Marília Fagury Videira Marceliano-Alves
- Postgraduate Program in Dentistry, Iguaçu University, Rio de Janeiro, Brazil
- Department of Oral Health Sciences, BIOMAT - Biomaterials Research group & UZ Leuven (University Hospitals Leuven), KU Leuven (University of Leuven), Leuven, Belgium
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d'Excellence INFLAMEX, Université Paris Cité, Montrouge, France
| | - Elizabeth Martinez
- Department of Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil
| | - Ricardo Lopes
- Nuclear Instrumentation Department, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Luan Ferreira Bastos
- Nuclear Instrumentation Department, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Wayne Martins Nascimento
- Department of Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil
| | - Ana Grasiela Limoeiro
- Department of Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil
| | - Marcos Dos Frozoni
- Department of Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil
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Wassel M, Radwan M, Elghazawy R. Direct and residual antimicrobial effect of 2% chlorhexidine gel, double antibiotic paste and chitosan- chlorhexidine nanoparticles as intracanal medicaments against Enterococcus faecalis and Candida albicans in primary molars: an in-vitro study. BMC Oral Health 2023; 23:296. [PMID: 37542254 PMCID: PMC10401786 DOI: 10.1186/s12903-023-02862-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/06/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Thorough disinfection of root canals in primary molars may be complicated by the complex root canal morphology. This in-vitro study aimed to compare direct and residual antimicrobial effect of 2% chlorhexidine (CHX) gel, 500 mg/ml double antibiotic paste (DAP) and chitosan-chlorhexidine nanoparticles (CS-CHX NPs) as intracanal medicaments against Enterococcus faecalis (E. faecalis) and Candida albicans (C. albicans) in primary molars. METHODS Mesial roots of 63 mandibular second primary molars were infected with E. faecalis and C. albicans. Teeth were divided into 9 groups: Ia: (CS-CHX NPs), IIa: (CHX), IIIa: (DAP), IVa: chitosan nanoparticles (CSNPs) in which medicaments were placed for 3 days, groups Ib: (CS-CHX NPs), IIb: CHX, IIIb: (DAP), IVb: (CSNPs) in which medicaments were placed for 7 days, and Group V (control): teeth were infected, irrigated with saline, and sampled 3- and 7-days post-infection. Microbiological samples were obtained after infection, 3, and 7 days after medicament placement and 7 days after medicament removal for both time points. One-way ANOVA, Tukey's post hoc test and paired t-test were used at p < 0.05. RESULTS CS-CHX NPs had the highest anticandidal effect which was comparable to CHX and significantly higher than other medicaments (p < 0.001) at both time points. CS-CHX NPs had the highest effect against E. faecalis which was comparable to DAP and significantly higher than other medicaments (p < 0.001) at 3 days. All medicaments showed similar effect against E. faecalis after 7 days. The 7-days placement significantly increased the antimicrobial effect against both micro-organisms in all groups, except CS-CHX NPs which showed an insignificant increase. CS-CHX NPs showed the highest residual effect against both micro-organisms that increased with 7-days placement. CONCLUSION CSNPs and CHX combination showed a synergistic effect against both micro-organisms. CS-CHX NPs displayed a higher effect at a shorter period compared to other medicaments, yet its residual effect was higher with 7-days placement.
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Affiliation(s)
- Mariem Wassel
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University Cairo, Organization of African Unity St.-Abbasia-Cairo, 11566 Cairo, Egypt
| | - Mohamed Radwan
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University Cairo, Organization of African Unity St.-Abbasia-Cairo, 11566 Cairo, Egypt
| | - Reham Elghazawy
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University Cairo, Organization of African Unity St.-Abbasia-Cairo, 11566 Cairo, Egypt
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Ribeiro AV, Velásquez-Espedilla EG, de Barros MC, de Melo Simas LL, de Andrade FB. Influence of Gutta-Percha Surface on Enterococcus faecalis Initial Adhesion In Vitro: An Atomic Force Microscopy Study. Life (Basel) 2023; 13:life13020456. [PMID: 36836813 PMCID: PMC9958639 DOI: 10.3390/life13020456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/26/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
The aim of this study was to evaluate the influence of surface topography of gutta-percha (GP) cones and plasticized disks of GP on the initial adhesion of Enterococcus faecalis (E. faecalis). The GP cones (Tanari and Dentsply brands) were cut 3 mm from the apical portion and fixed on a glass slide. To make the disks, the cones were thermoplasticized in standardized molds. The specimens were divided into groups according to the shape of the GP and the presence or absence of the bacteria. For contamination, the strain of E. faecalis (ATCC 29212) was used. The surface topography was analyzed using an atomic force microscope (AFM). The surface, roughness, and waviness parameters were evaluated by the Kruskal-Wallis and Dunn test. The comparison between disks and cones showed significant differences, where the cones were rougher, with a higher value attributed to the Dentsply cone (DC group). The same was observed for the waviness. After contamination, there was greater bacterial accumulation in cones, especially in their valleys, but both the surface and the topography became more homogeneous and smoother, with no differences between disks and cones of both brands. The topographic surface of the GP, at the micro and nanoscale, influences the initial adhesion of E. faecalis, with a greater tendency for contamination in regions associated with the presence of roughness and waviness. In this context, plasticization of GP is indicated, as it reduces surface irregularities compared to cones, contributing to less retention of bacteria.
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Affiliation(s)
- Allan Victor Ribeiro
- Department of Physics, Federal Institute of São Paulo, Birigui CEP 16201-407, SP, Brazil
| | - Evelyn Giuliana Velásquez-Espedilla
- Department of Dentistry, Endodontic and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru CEP 17012-901, SP, Brazil
| | - Mirela Cesar de Barros
- Department of Dentistry, Endodontic and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru CEP 17012-901, SP, Brazil
| | - Letícia Lobo de Melo Simas
- Department of Dentistry, Endodontic and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru CEP 17012-901, SP, Brazil
| | - Flaviana Bombarda de Andrade
- Department of Dentistry, Endodontic and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru CEP 17012-901, SP, Brazil
- Correspondence: ; Tel.: +55-143235-8344
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Efficacy of 5% Aminolaevulinic Acid and Red Light on Enterococcus faecalis in Infected Root Canals. Gels 2023; 9:gels9020125. [PMID: 36826295 PMCID: PMC9957220 DOI: 10.3390/gels9020125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND In this ex vivo study, the aim was to evaluate the effects of ALAD and red light on Enterococcus faecalis in infected root canals using a special intracanal fiber. METHODS A total of 70 extracted, single-rooted teeth were used. The teeth were decoronated at the length of the roots to approximately 15 mm and then instrumented. The apical foramen was sealed by composite resin, and the root canals were infected with a pure culture of E. faecalis ATCC 29212 for eight days at 37 °C. Following the contamination period, the roots were divided into seven groups, including the positive and negative control groups, and treated as follows: ALAD 45 min; red light activation 7 min; ALAD 45 min and red-light activation 7 min; sodium hypochlorite 2.5% 15 min; sodium hypochlorite 1% 15 min. The samples were taken by three sterile paper points, transferred to tubes containing 1 mL of PBS, and immediately processed for the number of colony-forming units and the cell viability by using live/dead. RESULTS The best treatment is obtained with 2.5% NaOCl. Except for ALAD + red light vs. 1% NaOCl, a statistically significant difference is recorded for all treatments. The combination of 2.5% NaOCl and ALAD + 7 min irradiation produces an evident killing effect on the E. faecalis cells. On the other hand, 1% NaOCl is ineffective for the viability action, with 25% of dead cells stained in red. CONCLUSIONS This ex vivo study shows that ALAD gel with light irradiation is an efficacious protocol that exerts a potent antibacterial activity against E. faecalis in infected root canals.
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Tilokani A, Agrawal P, Pradhan PK, Patri G, Karmakar N, Sinha Y. Comparative evaluation of antibacterial efficacy of nonsteroidal anti-inflammatory medications and proton-pump inhibitor against Enterococcus faecalis: An in vitro study. J Conserv Dent 2023; 26:79-82. [PMID: 36908739 PMCID: PMC10003294 DOI: 10.4103/jcd.jcd_419_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 12/12/2022] Open
Abstract
Aim The present in vitro experimental study was undertaken to evaluate and compare the antimicrobial activity of triple antibiotic paste (TAP), diclofenac, and proton-pump inhibitor (PPI) against the microorganism Enterococcus faecalis. Materials and Methods Three medicaments were selected for the study, TAP, diclofenac, and PPI. The experimental groups for the test were as follows: Part 1 - Group 1: TAP, Group 2: diclofenac, and Group 3: PPI; Part 2 - Group 1: TAP + PPI and Group 2: diclofenac + PPI. An agar well diffusion test was used to determine the efficacy of the experimental medicaments against E. faecalis (ATCC 29212). The diameter of inhibition zones was measured in millimeters using an inhibition zone measuring scale and the results were recorded. Statistical Analysis The statistical analysis was done using an analysis of variance and an unpaired t-test. P value was set at < 0.05. Results There was a significant difference in the diameter of growth inhibition zones, with the greatest diameter noted for TAP + PPI followed by diclofenac sodium (DS) + PPI, TAP, DS, and PPI. Conclusions The antimicrobial effectiveness of TAP + PPI was found to be superior to all other medicaments (DS + PPI, TAP, DS, and PPI).
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Affiliation(s)
- Akansha Tilokani
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Pratik Agrawal
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Prasanti Kumari Pradhan
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Gaurav Patri
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Nilormi Karmakar
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Yash Sinha
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
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Evaluation of efficacy of new chalcone-based endodontic irrigant against dual biofilm Enterococcus faecalis and Candida albicans: a study in vitro. Odontology 2022:10.1007/s10266-022-00764-y. [DOI: 10.1007/s10266-022-00764-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022]
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Antibacterial and Antibiofilm Activity of Juglone Derivatives against Enterococcus faecalis: An In Silico and In Vitro Approach. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6197375. [DOI: 10.1155/2022/6197375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/12/2022]
Abstract
Enterococcus faecalis is a Gram-positive bacterium that is normally found in the gastrointestinal tract of humans and animals. E. faecalis is an opportunistic pathogen that causes a number of invasive and noninvasive infections. The emergence of multidrug resistance and biofilm formation by the bacterium have rendered the treatment of E. faecalis infections very difficult. Due its high rate of resistance and biofilm formation, there are very few options of treatment. Therefore, the current study was designed to evaluate the antibacterial and biofilm activities of juglone derivatives such as 2-methoxy-6-acetyl-7-methyljuglone and 2-ethoxy-6-acetyl-7-methyljuglone against multidrug-resistant (MDR) and biofilm-producing strains of E. faecalis. Agar well diffusion and broth microdilution methods were used to determine the antibacterial activities. Biofilm attachment and preformed biofilm inhibition were determined using crystal violet staining assay. Both juglone derivatives displayed promising antibacterial and antibiofilm activities against E. faecalis. Among these compounds, 2-ethoxy-6-acetyl-7-methyljuglone possessed better inhibitory activity with minimum inhibitory concentration (MIC) of
as compared to 2-methoxy-6-acetyl-7-methyljuglone (MIC,
). Additionally, 2-ethoxy-6-acetyl-7-methyljuglone also showed stronger antibiofilm activity than 2-methoxy-6-acetyl-7-methyljuglone. Furthermore, both the ligand molecules were docked into the binding site of the enterococcal surface protein, and the results revealed that both the molecules are actively binding in the target site. Based on these findings, juglone derivatives may be considered useful for the treatment of E. faecalis infections; however, further studies are required to elucidate the mechanism of action.
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D’Ercole S, Carlesi T, Dotta TC, Pierfelice TV, D’Amico E, Tripodi D, Iezzi G, Piattelli A, Petrini M. 5-Aminolevulinic Acid and Red Led in Endodontics: A Narrative Review and Case Report. Gels 2022; 8:697. [PMID: 36354605 PMCID: PMC9689491 DOI: 10.3390/gels8110697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2022] [Accepted: 10/26/2022] [Indexed: 08/26/2023] Open
Abstract
The present study aims to discuss the main factors involving the use of 5-aminolevulinic acid together with red LED light and its application in endodontic treatment through a narrative review and a case report. Persistence of microorganisms remaining on chemical-mechanical preparation or intracanal dressing is reported as the leading cause of failure in endodontics. Photodynamic therapy has become a promising antimicrobial strategy as an aid to endodontic treatment. Being easy and quick to apply, it can be used both in a single session and in several sessions, as well as not allowing forms of microbial resistance. 5-aminolevulinic acid in combination with red LED light has recently been studied in many branches of medicine, with good results against numerous types of bacteria including Enterococuss faecalis. The case report showed how bacterial count of CFU decreased by half (210 CFU/mL), after 45 min of irrigation with a gel containing 5% of 5-aminolevulinic acid compared to the sample before irrigation (420 CFU/mL). The subsequent irradiation of red LED light for 7 min, the bacterial count was equal to 0. Thus, it is concluded that the use of 5-aminolevulinic acid together with red LED light is effective in endodontic treatment.
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Affiliation(s)
- Simonetta D’Ercole
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Teocrito Carlesi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Tatiane Cristina Dotta
- Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo 14040-904, Brazil
| | - Tania Vanessa Pierfelice
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Emira D’Amico
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Domenico Tripodi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University for Health Sciences (Unicamillus), 00131 Rome, Italy
- Fondazione Villa Serena per la Ricerca, 65013 Città Sant’Angelo, Italy
- Casa di Cura Villa Serena, 65013 Città Sant’Angelo, Italy
| | - Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
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Nunes LP, Nunes GP, Ferrisse TM, Strazzi-Sahyon HB, Cintra LTÂ, Dos Santos PH, Sivieri-Araujo G. Antimicrobial photodynamic therapy in endodontic reintervention: A systematic review and meta-analysis. Photodiagnosis Photodyn Ther 2022; 39:103014. [PMID: 35840008 DOI: 10.1016/j.pdpdt.2022.103014] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND To evaluate the effectiveness of the use of antimicrobial photodynamic therapy (aPDT) in root canals disinfection in cases of endodontic retreatments. METHODS This Systematic Review was registered in PROSPERO (CRD42021260013) and followed the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). Searches were performed in the electronic databases PubMeb, Scopus, Web of Science, Embase, Web of Science, Clinical Trials and Cochrane Library. Methodological quality and risk of bias were assessed by the Cochrane Risk of Bias tool for randomized clinical trials (RCT) and by the Newcastle-Ottawa (NOS) qualifier for non-RCT (prospective) studies. Meta-analysis was performed using R software, version 3.6.3 with the "META" package assistant by the RStudio platform. The odds ratio (OR) measure of effect was calculated and the random effect model was applied with a 95% confidence interval, and heterogeneity tested by the I2 index. The certainty of evidence was rated using GRADE. RESULTS Regarding the 1513 studies screened, 10 met the eligibility criteria and were included, and 8 used in the quantitative synthesis. Meta-analysis showed that all of studies data presented a significant difference before and after of antimicrobial photodynamic therapy in the microbial load reduction in secondary endondontic infections (OR 0.15 [0.07; 0.32], p < 0.0001). Overall, the studies had a low risk of bias and, the analysis of evidence by GRADE assessment was rated as moderate. CONCLUSION It is suggested that aPDT is a beneficial and promising tool, showing efficacy in reducing the microbial load in cases of endodontic retreatment.
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Affiliation(s)
- Larissa Pereira Nunes
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio, 1193, Araçatuba, SP 16015-050, Brazil
| | - Gabriel Pereira Nunes
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio, 1193, Araçatuba, SP 16015-050, Brazil
| | - Túlio Morandin Ferrisse
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Henrico Badaoui Strazzi-Sahyon
- Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University - UNESP, Araçatuba, SP, Brazil
| | - Luciano Tavares Ângelo Cintra
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio, 1193, Araçatuba, SP 16015-050, Brazil
| | - Paulo Henrique Dos Santos
- Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University - UNESP, Araçatuba, SP, Brazil
| | - Gustavo Sivieri-Araujo
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio, 1193, Araçatuba, SP 16015-050, Brazil.
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The Novel Role of Solvents in Non-Surgical Endodontic Retreatment. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12115492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Non-surgical endodontic retreatment is a reliable conservative option for managing post-treatment apical periodontitis. However, effective microbial control, based on the maximization of filling removal and disinfection protocols, is not yet predictable. Traditional gutta-percha solvents, which are indistinctively used for both the core and sealer filling materials, became obsolete due to unprecedented advances in endodontic technology. Nonetheless, microtomography, scanning electronic microscopy findings, and histobacteriological analysis tend to confirm the persistence of filling materials and the lack of association between root canal enlargement and superior disinfection. There is a controversy regarding the most suitable clinical protocols surrounding the shaping procedures and the supplementary disinfection steps. Based on the literature and the previous work of the team, the authors aimed to summarize the current knowledge regarding specific solvent formulations that target filling materials. Additionally, the advantage of an additional irrigation step to optimize disinfection was highlighted. This adjunctive procedure serves a dual role in the dissolution of filling materials, and in conferring an antibiofilm effect. Further research is needed to understand the novel contribution of these strategies upon clinical practice outcomes.
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Evaluation of Antibacterial and Antifungal Effects of Calcium Hydroxide Mixed with Two Different Essential Oils. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092635. [PMID: 35565986 PMCID: PMC9100329 DOI: 10.3390/molecules27092635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Calcium hydroxide is a routinely used material for root canal disinfection during root canal treatment. Natural products have great potential in terms of their antibacterial effects. This study aimed to establish an effective alternative intracanal medicament using Origanum dubium (O. dubium) and Mentha spicata (M. spicata) essential oils. MATERIALS AND METHODS O. dubium and M. spicata, collected from Lefke, Cyprus, were separately subjected to hydrodistillation. The obtained essential oil compositions were analysed simultaneously by gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS). The compositions were then divided into groups and mixed with calcium hydroxide at a 1:1 concentration; after that, the pastes were tested on Enterococcus faecalis (E. faecalis) and Candida albicans (C. albicans), which are the most common resistant pathogenic microorganisms in the root canal. The antibacterial activity of the pastes was measured using a disk diffusion assay. RESULTS The GC and GC-MS analyses revealed that O. dubium and M. spicata had major compositions of carvacrol (75.8%) and carvone (71.3%), respectively. Antimicrobial activity was found to be significantly higher when study groups with O. dubium essential oil were applied to both E. faecalis and C. albicans. The results also show that M. spicata, together with calcium hydroxide, demonstrated a significant antifungal effect on C. albicans when incubated for 72 h. CONCLUSIONS M. spicata was found to be an effective antimicrobial agent on C. albicans, whereas O. dubium was found to be very effective on both E. faecalis and C. albicans. These data demonstrate that these natural essential oils may be promising candidates for alternative intracanal medicament in future routine clinical applications.
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Nirmala S, L.R S, Reddy N, Reddy SD, Chukka RR, Kumar K N. Antimicrobial Efficacy of Morinda citrifolia, Nisin, and 2% Chlorhexidine Against Enterococcus faecalis: An In-Vitro Study. Cureus 2022; 14:e23206. [PMID: 35449669 PMCID: PMC9012554 DOI: 10.7759/cureus.23206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2022] [Indexed: 11/22/2022] Open
Abstract
Aim The aim of this study was to evaluate and compare the antimicrobial activity of 2% chlorhexidine gluconate (2% CHX), Morinda citrifolia (M. citrifolia), and nisin (NI) all in gel forms against Enterococcus faecalis (E. faecalis)-infected root canals. Methodology Forty single-rooted mandibular premolars extracted for orthodontic reasons were decoronated and chemomechanical preparation of the root canal was performed. After sterilization, the samples were inoculated with E. faecalis for one week and grouped according to the medicament used namely, saline as the control group (Group-A), 2% CHX (Group-B), M. citrifolia (Group-C), and NI (Group-D). After 7days of incubation, in order to evaluate the effectiveness of the intracanal medicaments on the canal wall and its radicular dentin, the specimens dentin chips were retrieved and inoculated on brain heart infusion (BHI) blood agar plates from each tube and incubated at 37°C for 24 hours to obtain bacterial colony forming unit (CFU) count. The data was statistically analyzed using one-way ANOVA test and multiple comparisons among different groups were complemented by post hoc Tukey test. Results The CFU count indicating the number of viable bacterial colonies was found to be highest in Group-A (saline). Group-B (CHX 2%) showed the least CFUs followed by Group-D (NI) and Group-C (M. citrifolia). Conclusion In an attempt to overcome the disadvantages and toxic effects of a few commercially available intracanal medicaments and irrigants, the present study was aimed at using herbal extracts to evaluate and compare their antimicrobial efficacy with the commercially available medicaments against E. faecalis. Nisin was an effective antimicrobial agent and its action was found to be comparable with CHX.
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Rosa M, Morozova Y, Moštěk R, Holík P, Somolová L, Novotná B, Zábojníková S, Bogdanová K, Langová K, Voborná I, Pospíšilová L, Kovařík JP. The Short-Term Antibacterial Activity of Three Selected Endodontic Sealers against Enterococcus faecalis Bacterial Culture. Life (Basel) 2022; 12:life12020158. [PMID: 35207445 PMCID: PMC8879048 DOI: 10.3390/life12020158] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/13/2022] [Accepted: 01/19/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Microorganisms originating from the microflora of the oral cavity are the main cause of the inflammatory diseases of the dental pulp and periapical periodontium, as well as the failure of endodontic treatment. The subsequent root canal treatment is not able to remove all the pathogens, and a small number of viable bacteria remain in the dentine tubules, which must be sealed by endodontic sealers. These sealers should have at least a bacteriostatic effect to prevent the remaining bacteria from reproducing. The aim of this study is to compare the short-term antibacterial activity of three endodontic sealers based on poly-epoxy resin, zinc oxide-eugenol and calcium silicate with a calcium hydroxide-based sealer. Calcium hydroxide is used as temporary intracanal medicament and, thus, should show significant antibacterial activity. (2) Methods: A total of 25 bovine dentine samples infected with Enterococcus faecalis were used in this study. After the sealer placement and a 24 h incubation period, the root canal walls were scraped, and the suspension of dentine fillings was used for a semi-quantitative evaluation of microbial growth. (3) Results: The poly-epoxide resin-based sealer ADSeal™ showed significant antibacterial properties. (4) Conclusions: The highest antibacterial activity was shown in poly-epoxide resin-based sealer group, followed by the zinc oxide-eugenol-based sealer and calcium silicate-based sealer.
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Affiliation(s)
- Matej Rosa
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
- Correspondence: (M.R.); (B.N.)
| | - Yuliya Morozova
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Roman Moštěk
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Pavel Holík
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Lucia Somolová
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Barbora Novotná
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
- Correspondence: (M.R.); (B.N.)
| | - Soňa Zábojníková
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Kateřina Bogdanová
- Department of Microbiology, University Hospital Olomouc, I. P. Pavlova 6, 779 00 Olomouc, Czech Republic;
| | - Kateřina Langová
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic;
| | - Iva Voborná
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Lenka Pospíšilová
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
| | - Josef Paul Kovařík
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic; (Y.M.); (R.M.); (P.H.); (L.S.); (S.Z.); (I.V.); (L.P.); (J.P.K.)
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Wong J, Manoil D, Näsman P, Belibasakis GN, Neelakantan P. Microbiological Aspects of Root Canal Infections and Disinfection Strategies: An Update Review on the Current Knowledge and Challenges. FRONTIERS IN ORAL HEALTH 2022; 2:672887. [PMID: 35048015 PMCID: PMC8757850 DOI: 10.3389/froh.2021.672887] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/17/2021] [Indexed: 02/06/2023] Open
Abstract
The oral cavity is the habitat of several hundreds of microbial taxa that have evolved to coexist in multispecies communities in this unique ecosystem. By contrast, the internal tissue of the tooth, i.e., the dental pulp, is a physiologically sterile connective tissue in which any microbial invasion is a pathological sign. It results in inflammation of the pulp tissue and eventually to pulp death and spread of inflammation/infection to the periradicular tissues. Over the past few decades, substantial emphasis has been placed on understanding the pathobiology of root canal infections, including the microbial composition, biofilm biology and host responses to infections. To develop clinically effective treatment regimens as well as preventive therapies, such extensive understanding is necessary. Rather surprisingly, despite the definitive realization that root canal infections are biofilm mediated, clinical strategies have been focused more on preparing canals to radiographically impeccable levels, while much is left desired on the debridement of these complex root canal systems. Hence, solely focusing on "canal shaping" largely misses the point of endodontic treatment as the current understanding of the microbial aetiopathogenesis of apical periodontitis calls for the emphasis to be placed on "canal cleaning" and chemo-mechanical disinfection. In this review, we dissect in great detail, the current knowledge on the root canal microbiome, both in terms of its composition and functional characteristics. We also describe the challenges in root canal disinfection and the novel strategies that attempt to address this challenge. Finally, we provide some critical pointers for areas of future research, which will serve as an important area for consideration in Frontiers in Oral Health.
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Affiliation(s)
- Jasmine Wong
- Discipline of Endodontology, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Daniel Manoil
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institute, Huddinge, Sweden
| | - Peggy Näsman
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institute, Huddinge, Sweden
| | - Georgios N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institute, Huddinge, Sweden
| | - Prasanna Neelakantan
- Discipline of Endodontology, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Vatankhah M, Khosravi K, Zargar N, Shirvani A, Nekoofar MH, Dianat O. Antibacterial efficacy of antibiotic pastes versus calcium hydroxide intracanal dressing: A systematic review and meta-analysis of ex vivo studies. J Conserv Dent 2022; 25:463-480. [PMID: 36506621 PMCID: PMC9733540 DOI: 10.4103/jcd.jcd_183_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/15/2022] [Accepted: 05/20/2022] [Indexed: 12/15/2022] Open
Abstract
Background Conflicting findings on the potency of antibiotic pastes versus calcium hydroxide (CH) have been evident in the literature. Aims To compare the antibacterial efficacy of single antibiotic paste (SAP), double antibiotic paste (DAP), triple antibiotic paste (TAP), and modified TAP (mTAP) with CH on bacterial biofilms. Methods PubMed, Scopus, and Embase were comprehensively searched until August 23, 2021. The study protocol was registered in the PROSPERO. Ex vivo studies performed on Enterococcus faecalis or polymicrobial biofilms incubated on human/bovine dentin were selected. The quality of the studies was assessed using a customized quality assessment tool. Standardized mean difference (SMD) with a 95% confidence interval (CI) was calculated for the meta-analysis. Meta-regression models were used to identify the sources of heterogeneity and to compare the efficacy of pastes. Results The qualitative and quantitative synthesis included 40 and 23 papers, respectively, out of 1421 search results. TAP (SMD = -3.82; CI, -5.44 to -2.21; P < 0.001) and SAPs (SMD = -2.38; CI, -2.81 to - 1.94; P < 0.001) had significantly higher antibacterial efficacy compared to the CH on E. faecalis biofilm. However, no significant difference was found between the efficacy of DAP (SMD = -2.74; CI, -5.56-0.07; P = 0.06) or mTAP (SMD = -0.28; CI, -0.82-0.26; P = 0.31) and CH. Meta-regression model on E. faecalis showed that SAPs have similar efficacy compared to TAP and significantly better efficacy than DAP. On dual-species (SMD = 0.15; CI, -1.00-1.29; P = 0.80) or multi-species (SMD = 0.23; CI, -0.08-0.55; P = 0.15) biofilms, DAP and CH had similar efficacy. Conclusions Ex vivo evidence showed that antibiotic pastes were either superior or equal to CH. The studied SAPs had considerably higher or similar antibacterial effectiveness compared to DAP, CH, and TAP. Hence, combined antibiotic therapy was not necessarily required for root canal disinfection ex vivo.
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Affiliation(s)
- Mohammadreza Vatankhah
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Khosravi
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nazanin Zargar
- Department of Endodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Armin Shirvani
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Omid Dianat
- Department of Advanced Oral Sciences and Therapeutics, School of Dentistry, University of Maryland, Baltimore, Maryland, USA,Address for correspondence: Dr. Omid Dianat, Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, School of Dentistry, University of Maryland, Baltimore, 650 West Baltimore Street, 4th Floor, Baltimore, MD 21201, USA. E-mail:
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de Souza Collares Maia Castelo-Branco D, Dos Santos Araújo G, Fonseca XMQC, de Melo Guedes GM, da Rocha MG, Brilhante RSN, de Aguiar Cordeiro R, Sidrim JJC, Pereira-Neto WA, Rocha MFG. Anthraquinones from Aloe spp. inhibit Cryptococcus neoformans sensu stricto: effects against growing and mature biofilms. BIOFOULING 2021; 37:809-817. [PMID: 34634964 DOI: 10.1080/08927014.2021.1958793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to evaluate the in vitro effect of aloe emodin, barbaloin and chrysophanol on growing and mature biofilms of Cryptococcus neoformans sensu stricto. The compounds were added at the moment of inducing biofilm growth or after growth for 72 h to evaluate their effects on growing and mature biofilms, respectively. Then, biofilm biomass was evaluated by crystal violet staining and metabolic activity by the XTT reduction assay. Morphological alterations were also evaluated by laser scanning confocal microscopy. Aloe emodin and barbaloin affected growing biofilms and disrupted mature biofilms, reducing metabolic activity by > 60% and biomass by > 70%. Chrysophanol only inhibited mature biofilms, but to a lesser extent. In conclusion, anthraquinones, especially aloe emodin and barbaloin, show a relevant effect against growing and mature biofilms of C. neoformans sensu stricto.
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Affiliation(s)
- Débora de Souza Collares Maia Castelo-Branco
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Géssica Dos Santos Araújo
- Postgraduate Program in Veterinary Sciences, School of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Xhaulla Maria Quariguasi Cunha Fonseca
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Glaucia Morgana de Melo Guedes
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Maria Gleiciane da Rocha
- Postgraduate Program in Veterinary Sciences, School of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Raimunda Sâmia Nogueira Brilhante
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Rossana de Aguiar Cordeiro
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - José Júlio Costa Sidrim
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Waldemiro Aquino Pereira-Neto
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marcos Fábio Gadelha Rocha
- Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
- Postgraduate Program in Veterinary Sciences, School of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
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Sousa MGDC, Xavier PD, Cantuária APDC, Amorim IA, Almeida JA, Franco OL, Rezende TMB. Antimicrobial and immunomodulatory in vitro profile of double antibiotic paste. Int Endod J 2021; 54:1850-1860. [PMID: 34033685 DOI: 10.1111/iej.13576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 12/20/2022]
Abstract
AIM To evaluate the antimicrobial and immunomodulatory activity of double antibiotic paste (DAP) in an in vitro infection model. METHODOLOGY The minimum inhibitory and bactericidal concentrations (MIC and MBC) and the antibiofilm activities (TTC assay) of DAP and its components (ciprofloxacin and metronidazole) were evaluated against Staphylococcus aureus and Enterococcus faecalis compared with triple antibiotic paste (TAP). The cellular viability of RAW 264.7 macrophages (24 and 72 h) and L929 fibroblasts (48 and 72 h) was evaluated by MTT. Furthermore, the production of TNF-α, IL-12, IL-6, IL-1α, IL-10 and NO (on RAW 264.7), besides IL-6, TGF-β and NO (on L929), stimulated with DAP in baseline and associated with heat-killed microbial-antigen conditions was measured by ELISA and Griess reaction. Data were analysed using the one-way ANOVA test with Bonferroni's corrections. RESULTS The MBC of pharmacopoeia DAP was similar to TAP for E. faecalis (0.25 μg. mL-1 ) and lower for S. aureus (DAP 1 μg. mL-1 and TAP 2 μg. mL-1 ; p < .001). Ciprofloxacin was the most effective antibiofilm drug from the pastes (35% of reduction for E. faecalis and S. aureus; p < .0001), and both pastes had a similar antibiofilm eradication against both biofilm species (29% and 35% for S. aureus and 76% and 85% for E. faecalis; p < .0001). DAP was cytotoxic against the tested cells. DAP significantly upregulated IL-1α (p < .001), IL-6 (p < .0001), TNF-α (p < .01) and IL-12 (p < .05; in the absence of antigens) and significantly reduced IL-6 (p < .0001; in the presence of HK-S. aureus) and IL-10 (p < .05; in the presence of both antigens) on macrophages. Furthermore, DAP upregulated IL-6 (p < .001) and NO (p < .05; in the absence of antigens), IL-6 (p < .001; in the presence of HK-S. aureus) and reduced NO (p < .001; in the presence of HK-S. aureus). CONCLUSIONS Double antibiotic paste and TAP had similar antimicrobial activity against S. aureus and E. faecalis. DAP upregulated pro-inflammatory cytokines mainly in the absence of antigens and had pro- and anti-inflammatory activity in RAW 264.7 macrophages and L929 fibroblasts in the presence of antigens involved in pulp infections.
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Affiliation(s)
- Maurício Gonçalves da Costa Sousa
- Pós-Graduação em Ciências Genômicas e Biotecnologia, Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, Brazil
| | | | | | - Ingrid Aquino Amorim
- Pós-Graduação em Ciências Genômicas e Biotecnologia, Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, Brazil.,Curso de Odontologia, Centro Universitário Unieuro, Brasília, Brazil
| | - Jeeser Alves Almeida
- Pós-Graduação em Saúde e Desenvolvimento na Região Centro Oeste, Faculdade de Medicina, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Octavio Luiz Franco
- Pós-Graduação em Ciências Genômicas e Biotecnologia, Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, Brazil.,Pós-Graduação em Patologia Molecular, Universidade de Brasília, Brasília, Brazil.,S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil
| | - Taia Maria Berto Rezende
- Pós-Graduação em Ciências Genômicas e Biotecnologia, Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, Brazil.,Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, Brazil.,Curso de Odontologia, Universidade Católica de Brasília, Brasília, Brazil
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Bapat RA, Parolia A, Chaubal T, Dharamadhikari S, Abdulla AM, Sakkir N, Arora S, Bapat P, Sindi AM, Kesharwani P. Recent update on potential cytotoxicity, biocompatibility and preventive measures of biomaterials used in dentistry. Biomater Sci 2021; 9:3244-3283. [PMID: 33949464 DOI: 10.1039/d1bm00233c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Dental treatment is provided for a wide variety of oral health problems like dental caries, periodontal diseases, periapical infections, replacement of missing teeth and orthodontic problems. Various biomaterials, like composite resins, amalgam, glass ionomer cement, acrylic resins, metal alloys, impression materials, bone grafts, membranes, local anaesthetics, etc., are used for dental applications. The physical and chemical characteristics of these materials influence the outcome of dental treatment. It also impacts on the biological, allergic and toxic potential of biomaterials. With innovations in science and their positive results, there is also a need for awareness about the biological risks of these biomaterials. The aim of dental treatment is to have effective, yet safe, and long-lasting results for the benefit of patients. For this, it is important to have a thorough understanding of biomaterials and their effects on local and systemic health. Materials used in dentistry undergo a series of analyses before their oral applications. To the best of our knowledge, this is the first and original review that discusses the reasons for and studies on the toxicity of commonly used biomaterials for applications in dentistry. It will help clinicians to formulate a methodical approach for the selection of dental biomaterials, thus providing an awareness for forecasting their risk of toxic reactions.
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Affiliation(s)
- Ranjeet Ajit Bapat
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Abhishek Parolia
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Tanay Chaubal
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | | | - Anshad Mohamed Abdulla
- Faculty, Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Nasil Sakkir
- Registrar Endodontist, Central Security Hospital, Abha, Kingdom of Saudi Arabia
| | - Suraj Arora
- Faculty, Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Prachi Bapat
- Dentist, Modern Dental College, Indore 453112, Madhya Pradesh, India
| | - Amal M Sindi
- Faculty, Oral Diagnostic Sciences Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Prashant Kesharwani
- Faculty, Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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20
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Wong J, Zou T, Lee AHC, Zhang C. The Potential Translational Applications of Nanoparticles in Endodontics. Int J Nanomedicine 2021; 16:2087-2106. [PMID: 33727815 PMCID: PMC7955783 DOI: 10.2147/ijn.s293518] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/26/2021] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology has substantially progressed in the past decades, giving rise to numerous possible applications in different biomedical fields. In particular, the use of nanoparticles in endodontics has generated significant interest due to their unique characteristics. As a result of their nanoscale dimensions, nanoparticles possess several properties that may enhance the treatment of endodontic infections, such as heightened antibacterial activity, increased reactivity and the capacity to be functionalized with other reactive compounds. Effective disinfection and sealing of the root canal system are the hallmarks for successful endodontic treatment. However, the presence of bacterial biofilms and resistance to endodontic disinfectants pose a significant challenge to this goal. This has encouraged the investigation of antibacterial nanoparticle-based irrigants and intracanal medicaments, which may improve the elimination of endodontic infections. In addition, photosynthesizer-functionalized nanoparticles could also serve as a worthy adjunct to root canal disinfection strategies. Furthermore, despite the myriad of commercially available options for endodontic obturation, the "ideal" material has yet to be conceived. This has led to the development of various experimental nanoparticle-incorporated obturation materials and sealers that exhibit a range of favourable physicochemical properties including enhanced antibacterial efficacy and bioactivity. Nanoparticle applications also show promise in the field of regenerative endodontics, such as supporting the release of bioactive molecules and enhancing the biophysical properties of scaffolds. Given the constantly growing body of research in this field, this article aims to present an overview of the current evidence pertaining to the potential translational applications of nanoparticles in endodontics.
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Affiliation(s)
- Jasmine Wong
- Restorative Dental Sciences (Endodontics), Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Ting Zou
- Restorative Dental Sciences (Endodontics), Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Angeline Hui Cheng Lee
- Restorative Dental Sciences (Endodontics), Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Chengfei Zhang
- Restorative Dental Sciences (Endodontics), Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
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21
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Araujo HC, da Silva ACG, Paião LI, Magario MKW, Frasnelli SCT, Oliveira SHP, Pessan JP, Monteiro DR. Antimicrobial, antibiofilm and cytotoxic effects of a colloidal nanocarrier composed by chitosan-coated iron oxide nanoparticles loaded with chlorhexidine. J Dent 2020; 101:103453. [PMID: 32827599 DOI: 10.1016/j.jdent.2020.103453] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES This study evaluated the antimicrobial and antibiofilm effects of a colloidal nanocarrier for chlorhexidine (CHX) on Candida glabrata and Enterococcus faecalis, as well as tested its cytotoxic effect on murine fibroblasts. METHODS Iron oxide nanoparticles (IONPs) were coated with chitosan (CS) and loaded with CHX at 31.2, 78 and 156 μg/mL. Antimicrobial effects were assessed by determining the minimum inhibitory concentration (MIC), using the broth microdilution method, and fractional inhibitory concentration index (FICI). Preformed biofilms (48 h) were treated with different concentrations of the nanocarrier (24 h) and quantified by colony-forming units (CFUs), total biomass and metabolic activity. For cytotoxicity, the viability of L929 cells was evaluated by MTT assay after 24 and 48 h of exposure to the nanocarrier. Data were submitted to ANOVA and Fisher LSD or Tukey post-hoc tests (α = 0.05). RESULTS MIC and FICI results showed an indifferent interaction among the components of the nanocarrier for all strains evaluated. CHX alone and nanocarrier containing 156 μg/mL CHX did not differ from each other in reducing the number of CFUs. However, the nanocarrier containing 156 μg/mL CHX promoted the highest reductions in total biofilm biomass and metabolism, surpassing the effect of CHX alone. After 24 and 48 h of exposure, the nanocarrier reduced CHX toxicity to the L929 cell at low concentrations. CONCLUSION These findings suggest that the CHX nanocarrier has potential to be used in the control of oral diseases associated with C. glabrata and E. faecalis. CLINICAL RELEVANCE CHX has improved the antibiofilm effect and reduced the cytotoxicity (at low concentrations) when conjugated to CS-coated IONPs. This new colloidal formulation has potential as an alternative antimicrobial agent to pure CHX for the control of biofilm-related oral diseases, such as oral candidiasis and endodontic infections.
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Affiliation(s)
- Heitor Ceolin Araujo
- São Paulo State University (Unesp), School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, 16015-050 Araçatuba, São Paulo, Brazil
| | - Ana Carolina Gomes da Silva
- School of Dentistry, Presidente Prudente, University of Western São Paulo (UNOESTE), 19050-920 Presidente Prudente, São Paulo, Brazil
| | - Luana Isabel Paião
- School of Dentistry, Presidente Prudente, University of Western São Paulo (UNOESTE), 19050-920 Presidente Prudente, São Paulo, Brazil
| | - Mychelle Keiko Watanabe Magario
- School of Dentistry, Presidente Prudente, University of Western São Paulo (UNOESTE), 19050-920 Presidente Prudente, São Paulo, Brazil
| | - Sabrina Cruz Tfaile Frasnelli
- São Paulo State University (Unesp), School of Dentistry, Araçatuba, Department of Basic Sciences, 16015-050 Araçatuba, São Paulo, Brazil
| | - Sandra Helena Penha Oliveira
- São Paulo State University (Unesp), School of Dentistry, Araçatuba, Department of Basic Sciences, 16015-050 Araçatuba, São Paulo, Brazil
| | - Juliano Pelim Pessan
- São Paulo State University (Unesp), School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, 16015-050 Araçatuba, São Paulo, Brazil
| | - Douglas Roberto Monteiro
- Graduate Program in Dentistry (GPD - Master's Degree), University of Western São Paulo (UNOESTE), 19050-920 Presidente Prudente, São Paulo, Brazil.
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Walsh DJ, Livinghouse T, Durling GM, Chase-Bayless Y, Arnold AD, Stewart PS. Sulfenate Esters of Simple Phenols Exhibit Enhanced Activity against Biofilms. ACS OMEGA 2020; 5:6010-6020. [PMID: 32226882 PMCID: PMC7098047 DOI: 10.1021/acsomega.9b04392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
The recalcitrance exhibited by microbial biofilms to conventional disinfectants has motivated the development of new chemical strategies to control and eradicate biofilms. The activities of several small phenolic compounds and their trichloromethylsulfenyl ester derivatives were evaluated against planktonic cells and mature biofilms of Staphylococcus epidermidis and Pseudomonas aeruginosa. Some of the phenolic parent compounds are well-studied constituents of plant essential oils, for example, eugenol, menthol, carvacrol, and thymol. The potency of sulfenate ester derivatives was markedly and consistently increased toward both planktonic cells and biofilms. The mean fold difference between the parent and derivative minimum inhibitory concentration against planktonic cells was 44 for S. epidermidis and 16 for P. aeruginosa. The mean fold difference between the parent and derivative biofilm eradication concentration for 22 tested compounds against both S. epidermidis and P. aeruginosa was 3. This work demonstrates the possibilities of a new class of biofilm-targeting disinfectants deploying a sulfenate ester functional group to increase the antimicrobial potency toward microorganisms in biofilms.
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Affiliation(s)
- Danica J Walsh
- Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
- Center for Biofilm Engineering, Montana State University, Bozeman, Montana 59717, United States
| | - Tom Livinghouse
- Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Greg M Durling
- Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Yenny Chase-Bayless
- Fish and Wildlife, Montana State University, Bozeman, Montana 59717, United States
| | - Adrienne D Arnold
- Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, United States
| | - Philip S Stewart
- Center for Biofilm Engineering, Montana State University, Bozeman, Montana 59717, United States
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