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Scelza MFZ, Tavares SJO, Scelza P, Ramos GS, Lima Aboud LRD, Piasecki L, Leite PEC, Silva JDD, Soares-Lima SC, Alves GG. A three-dimensional cell culture approach to investigate cytotoxic effects and production of inflammatory mediators by epoxy resin-based and calcium silicate-based endodontic sealer. Clin Oral Investig 2024; 28:344. [PMID: 38809444 DOI: 10.1007/s00784-024-05743-x] [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: 02/28/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
OBJECTIVES The aim of the present study was to assess the cytocompatibility of epoxy resin-based AH Plus Jet (Dentsply De Trey, Konstanz, Germany), Sealer Plus (MK Life, Porto Alegre, Brazil), calcium silicate-based Bio-C Sealer (Angelus, Londrina, PR, Brazil), Sealer Plus BC (MK Life) and AH Plus BC (Dentsply) through a tridimensional (3D) culture model of human osteoblast-like cells. METHODS Spheroids of MG-63 cells were produced and exposed to fresh root canal sealers extracts by 24 h, and the cytotoxicity was assessed by the Lactate Dehydrogenase assay (LDH). The distribution of dead cells within the microtissue was assessed by fluorescence microscopy, and morphological effects were investigated by histological analysis. The secreted inflammatory mediators were detected in cell supernatants through flow luminometry (XMap Luminex). RESULTS Cells incubated with AH Plus Jet, AH Plus BC, Sealer Plus BC and Bio-C Sealer extracts showed high rates of cell viability, while the Sealer Plus induced a significant reduction of cell viability, causing reduction on the spheroid structure. Sealer Plus and Seaker Plus BC caused alterations on 3D microtissue morphology. The AH Plus BC extract was associated with the downregulation of secretion of pro-inflammatory cytokines IL-5, IL-7, IP-10 and RANTES. CONCLUSIONS The new AH Plus BC calcium silicate-based endodontic sealer did not reduce cell viability in vitro, while led to the downregulation of pro-inflammatory cytokines. CLINICAL SIGNIFICANCE Choosing the appropriate endodontic sealer is a crucial step. AH Plus BC demonstrated high cell viability and downregulation of pro-inflammatory cytokines, appearing reliable for clinical use, while Sealer Plus presented lower cytocompatibility.
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Affiliation(s)
- Miriam F Z Scelza
- Post-graduation Program in Dentistry of Fluminense Federal University (UFF), Niterói,, RJ, Brazil.
- Department of Endodontics, Laboratory of Experimental Culture Cell (LECCel), Faculty of Dentistry, Fluminense Federal University, Niterói, RJ, Brazil.
| | - Sandro J O Tavares
- Post-graduation Program in Dentistry of Fluminense Federal University (UFF), Niterói,, RJ, Brazil
- Department of Endodontics, Laboratory of Experimental Culture Cell (LECCel), Faculty of Dentistry, Fluminense Federal University, Niterói, RJ, Brazil
| | - Pantaleo Scelza
- Geriatric Dentistry Department, Faculty of Dentistry of Federal Fluminense University (UFF), Niteroi, RJ, Brazil
| | - Gabriel S Ramos
- Undergraduate of Faculty of Biology Science, Fluminense Federal University, 24210-201, RJ, Niterói, Brazil
| | | | - Lucila Piasecki
- Department of Periodontics and Endodontics, University at Buffalo, NY, USA
| | - Paulo Emílio C Leite
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, RJ, Niterói, Brazil
| | - Jéssica Dornelas da Silva
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, RJ, Niterói, Brazil
- NanoOnco3D, RJ, Niterói, Brazil
| | - Sheila Coelho Soares-Lima
- Molecular Carcinogenesis Program of National Cancer Institute (INCA), 20231-050, Rio de Janeiro, André Cavalcante Street, no 37, Brazil
| | - Gutemberg G Alves
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, RJ, Niterói, Brazil
- Cell and Molecular Biology Department, Institute of Biology, Fluminense Federal University, Rio de Janeiro, Niterói, Brazil
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Kim M, Hayashi M, Yu B, Lee TK, Kim RH, Jo DW. Effects of Fucoidan Powder Combined with Mineral Trioxide Aggregate as a Direct Pulp-Capping Material. Polymers (Basel) 2022; 14:polym14122315. [PMID: 35745892 PMCID: PMC9228542 DOI: 10.3390/polym14122315] [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: 05/14/2022] [Revised: 06/04/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022] Open
Abstract
The development of direct pulp-capping materials with favorable biological and structural properties is an important goal in restorative dentistry. Fucoidan is a sulfated, fucose-containing polysaccharide obtained from brown seaweed, with a wide range of applications; however, its use as a direct pulp-capping material has not been examined. This study aimed to evaluate the mechanical, physical, and biological effects of fucoidan combined with conventional mineral trioxide aggregate (MTA) for direct pulp capping. The capping materials were created using Portland cement (80 wt%) and zirconium oxide (20 wt%) as base components, compared with base components plus 5 wt% fucoidan (PZF5) and base components plus 10 wt% fucoidan (PZF10). The initial and final setting time, compressive strength, chemical components, cell viability, adhesion, migration, osteogenesis, and gene expression were analyzed. Fucoidan significantly reduced the initial and final setting time, regardless of quantity. However, the compressive strength was lower for PZF5. Sulfur levels increased with fucoidan. The biological activity improved, especially in the PZF5 group. Cell migration, Alizarin Red S staining, and alkaline phosphatase activity were upregulated in the PZF5 group. Fucoidan is a useful regenerative additive for conventional pulp-capping materials because it reduces the setting time and improves cell migration and osteogenic ability.
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Affiliation(s)
- Mijoo Kim
- UCLA School of Dentistry Restorative Materials and Applied Dental Research Laboratory, Los Angeles, CA 90095, USA; (M.K.); (M.H.); (B.Y.); (T.K.L.); (R.H.K.)
- Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Marc Hayashi
- UCLA School of Dentistry Restorative Materials and Applied Dental Research Laboratory, Los Angeles, CA 90095, USA; (M.K.); (M.H.); (B.Y.); (T.K.L.); (R.H.K.)
- Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Bo Yu
- UCLA School of Dentistry Restorative Materials and Applied Dental Research Laboratory, Los Angeles, CA 90095, USA; (M.K.); (M.H.); (B.Y.); (T.K.L.); (R.H.K.)
- Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Thomas K. Lee
- UCLA School of Dentistry Restorative Materials and Applied Dental Research Laboratory, Los Angeles, CA 90095, USA; (M.K.); (M.H.); (B.Y.); (T.K.L.); (R.H.K.)
- Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Reuben H. Kim
- UCLA School of Dentistry Restorative Materials and Applied Dental Research Laboratory, Los Angeles, CA 90095, USA; (M.K.); (M.H.); (B.Y.); (T.K.L.); (R.H.K.)
- Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Deuk-Won Jo
- Section of Dentistry, Department of Prosthodontics, Seoul National University Bundang Hospital, Seongnam 13620, Korea
- Correspondence: ; Tel.: +82-31-787-7548
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Demirci GK, Kaval ME, Kurt SM, Serefoglu B, Güneri P, Hülsmann M, Caliskan MK. Energy-Dispersive X-Ray Spectrometry Analysis and Radiopacity of Five Different Root Canal Sealers. Braz Dent J 2021; 32:1-11. [PMID: 34877971 DOI: 10.1590/0103-6440202104638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/29/2021] [Indexed: 11/21/2022] Open
Abstract
Root canal sealers should have optimum adhesion to the root dentin, low cytotoxicity, sufficient radiopacity and high dimensional stability, which depend mainly on their chemical composition. The aims of this study were to evaluate the chemical composition of Syntex (Cerkamed, Stalowa Wola, Poland), Adseal (Meta Biomed, Cheongju-si, Korea), Sealapex (SybronEndo, Scafati, Italy), MTA Fillapex (Angelus, Londrina, Brazil) and GuttaFlow Bioseal (Coltene/Whaledent, Altstätten, Switzerland) and to determine their radiopacity comparatively. Stainless steel molds with an inner diameter of 5 mm and a depth of 2 mm were constructed. Tested root-canal sealers were mixed and poured into the molds. Following setting, digital periapical radiographs of the specimens (n=12) were taken under standard exposure conditions and the mean gray-values of specimens were measured using a computer graphics program. Then the specimens were examined by scanning electron microscopy, and Energy-dispersive X-ray analysis was performed. The data were analyzed using One-way ANOVA followed by Holm-Sidak multi-comparison test (p = 0.05). Sealapex showed higher calcium peak than MTA Fillapex, GuttaFlow Bioseal, Adseal and Syntex sealers. MTA Fillapex contained a highest amount of tungstate. Sealapex presented the highest radiopacity value among the tested materials (p < 0.05), whereas MTA Fillapex was the least radiopaque material (p < 0.05). Each root canal sealer contains different compositions of radiopacifiers including bismuth oxide, calcium tungstate and zirconium oxide. The tested root canal sealers had radiopacity values above the ISO-specified limit. Sealapex was the most radiopaque root canal sealer followed by GuttaFlow Bioseal, Syntex, Adseal and MTA Fillapex.
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Affiliation(s)
| | - Mehmet Emin Kaval
- Department of Endodontology, Faculty of Dentistry, Ege University, Izmir, Turkey
| | | | - Burcu Serefoglu
- Department of Endodontology, Faculty of Dentistry, Ege University, Izmir, Turkey
| | - Pelin Güneri
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ege University, Izmir, Turkey
| | - Michael Hülsmann
- Department of Operative Dentistry, Periodontology and Cariology, Faculty of Dentistry, University of Göttingen, Göttingen, Germany
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Garrido M, Morales D, Saldías MP, Fernández C, Villalobos V, Cerda O, Cáceres M. Cellular response of human apical papilla cells to calcium hydroxide and tricalcium silicate-based cements. BMC Oral Health 2021; 21:106. [PMID: 33750358 PMCID: PMC7941877 DOI: 10.1186/s12903-021-01467-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 02/24/2021] [Indexed: 01/09/2023] Open
Abstract
Background This study aimed to evaluate the biological response of human apical papilla cells to different calcium hydroxide formulations and three tricalcium silicate-based materials. Methods Primary cells were obtained from explants of young immature premolars. 20,000 cells adhered for 24 h over discs of Biodentine™, ProRoot®MTA, BioRoot®RCS and calcium hydroxide mixed either with sodium chloride 0.9%w/v or polyethylene glycol and UltraCal® were used to evaluate cell adhesion by scanning electron microscopy and cell viability by MTT assay. Results Cells adhered to ProRoot®MTA showed an increase of F-actin like protrusions, suggesting bioactivity. Cells adhered to UltraCal® show protrusion such as filopodia. On the contrary, cells adhered to BioRoot®RCS showed no signs of any cellular protrusion. Regarding viability between the materials, we found a higher percentage of viability in cells cultured over discs of Biodentine™ and ProRoot®MTA. Conclusion ProRoot®MTA and Biodentine™ exhibit a better cellular response of human apical papilla cells in vitro conditions compared to BioRoot® and calcium hydroxide diluted in sodium chloride.
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Affiliation(s)
- Mauricio Garrido
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Diego Morales
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - María Paz Saldías
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Christian Fernández
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Veronica Villalobos
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Oscar Cerda
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Mónica Cáceres
- Program of Molecular and Cell Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile. .,Millenium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile. .,Faculty of Medicine, Universidad de Chile, Santiago, Chile.
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Vinola SMJ, Karthikeyan K, Mahalaxmi S. A novel petasin-modified zinc oxide eugenol sealer. J Conserv Dent 2020; 22:490-494. [PMID: 33082668 PMCID: PMC7537762 DOI: 10.4103/jcd.jcd_475_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 06/27/2020] [Accepted: 07/07/2020] [Indexed: 11/04/2022] Open
Abstract
Objective Zinc oxide eugenol (ZOE) is one of the most commonly used root canal sealer. However, it has few drawbacks such as cytotoxicity, solubility, and irritation to periapical tissues. The scope of this study was to investigate the setting time, solubility, cytotoxic effects, and anti-inflammatory action of ZOE sealer with the modification of its liquid component by the addition of petasin extract in the ratios 1:1, 5:1, and 10:1. Materials and Methods Setting time was evaluated using the Vicat's apparatus. For testing solubility, the American Dental Association's specification #8 was adopted with certain modifications. Protein denaturation assay and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide assay with L929 mouse fibroblast cell lines were used to evaluate the anti-inflammatory property and cytotoxicity, respectively. Results ZOE sealer with petasin extract in the ratio of 5:1 showed the least initial and the final setting times. There was no statistically significant difference in the amount of solubility for all the groups at the various time intervals. The cytotoxicity of the control group was significantly greater than all the experimental groups, whereas the anti-inflammatory effect of the former was statistically lower. Conclusions The combination of ZOE with petasin extract in the ratio of 5:1 showed lower setting time, cytotoxicity, and better anti-inflammatory property.
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Affiliation(s)
- Selvanathan M J Vinola
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, Chennai, India
| | - Kittappa Karthikeyan
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, Chennai, India
| | - Sekar Mahalaxmi
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, Chennai, India
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Abdel Raheem IA, Abdul Razek A, Elgendy AA, Labah DA, Saleh NM. Egyptian Propolis-Loaded Nanoparticles as a Root Canal Nanosealer: Sealing Ability and in vivo Biocompatibility. Int J Nanomedicine 2020; 15:5265-5277. [PMID: 32884255 PMCID: PMC7434463 DOI: 10.2147/ijn.s258888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 07/08/2020] [Indexed: 12/16/2022] Open
Abstract
Background Successful endodontic therapy is mainly governed by the satisfactory sealing ability of the applied root canal sealer. Also, tolerability of root canal structure to accommodate the presence of a sealer participates in the efficiency of the treatment. Hence, this study was aimed to extrapolate our previous one that was concerned with the preparation and evaluation of novel nature-based root canal sealers. Our current work is focused on the evaluation of sealing ability and in vivo biocompatibility. Materials and Methods Egyptian propolis was extracted (ProE) and encapsulated in polymeric nanoparticles (ProE-loaded NPs). Two root sealers, PE sealer and PE nanosealer, were fabricated by incorporating ProE and ProE-loaded NPs, respectively. The sealing ability of the developed sealers was tested by a dye extraction method. An in vivo biocompatibility study was conducted using a subcutaneous implantation method for two and four weeks. At the same time, a model sealer (AH Plus®) was subjected to the same procedures to enable accurate and equitable results. Results The teeth treated with PE sealer exhibited weak sealing ability which did not differ from that of unfilled teeth. PE nanosealer enhanced the sealing ability similarly to the model sealer with minimal apical microleakage. Studying in vivo biocompatibility indicated the capability of the three tested sealers to induce cell proliferation and tissue healing. However, PE nanosealer had superior biocompatibility, with higher potential for cell regeneration and tissue proliferation. Conclusion PE nanosealer can be presented as an innovative root canal sealer, with enhanced sealing ability as well as in vivo biocompatibility. It can be applied as a substitute for the currently available sealers that demonstrate hazardous effects.
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Affiliation(s)
| | - Amro Abdul Razek
- Endodontics Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | | | - Doaa Ahmed Labah
- Oral Biology and Dental Medicine Department, Faculty of Dentistry, Zagazig University, Zagazig, Egypt
| | - Noha Mohamed Saleh
- Pharmaceutics Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Silva EJ, Hecksher F, Vieira VT, Vivan RR, Duarte MA, Brasil SC, Antunes HS. Cytotoxicity, antibacterial and physicochemical properties of a new epoxy resin-based endodontic sealer containing calcium hydroxide. J Clin Exp Dent 2020; 12:e533-e539. [PMID: 32665811 PMCID: PMC7335608 DOI: 10.4317/jced.56534] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/24/2020] [Indexed: 11/05/2022] Open
Abstract
Background This study evaluated the cytotoxicity, antibacterial and physicochemical properties of a new epoxy resin-based endodontic sealer containing calcium-hydroxide Sealer Plus. AH Plus was used as a reference for comparison.
Material and Methods Cytotoxicity evaluation was performed according to ISO-10993-5 specifications using MTT assay to check the 3T3 cells viability at 1- to 4-week periods. Antibacterial activity was evaluated using a direct contact test against Enterococcus faecalis. Radiopacity, solubility and flow evaluations were performed according to ISO-6876/2012 specifications. Setting time was assessed following the ANSI/ADA-standard-n.57. The pH level was measured at 3,24,48,72, and 168 hours. Data were statistically analyzed using t-test. The significance level adopted was P<0.05.
Results AH Plus and Sealer Plus showed cytotoxic effects after 24 hours and 1 week of manipulation and become noncytotoxic after 2 weeks. No differences were observed in the cytotoxicity of both tested sealers (P>0.05). Direct contact results revealed that both freshly prepared sealers has antibacterial effects against Enterococcus faecalis. However, after 7 days both sealers had lost much of their antibacterial effects. Although AH Plus presented higher radiopacity and flow than Sealer Plus (P<0.05), both sealers showed minimum required values. No differences were observed in the solubility of both sealers (P>0.05). AH Plus showed a higher setting time when compared to Sealer Plus (P<0.05). AH Plus and Sealer Plus showed a neutral pH during all tested periods (P<0.05).
Conclusions It can be concluded that Sealer Plus showed suitable properties to be used as an endodontic sealer, comparable with those obtained by AH Plus. Key words:Cytotoxicity, root canal filling materials, root canal obturation.
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Affiliation(s)
- Emmanuel J Silva
- Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil
| | - Fernanda Hecksher
- Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil
| | - Victor T Vieira
- Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil
| | - Rodrigo R Vivan
- Department of Endodontics, São Paulo University, Bauru, SP, Brazil
| | - Marco A Duarte
- Department of Endodontics, São Paulo University, Bauru, SP, Brazil
| | - Sabrina C Brasil
- Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil
| | - Henrique S Antunes
- Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil
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Teixeira ABV, de Castro DT, Schiavon MA, Dos Reis AC. Cytotoxicity and release ions of endodontic sealers incorporated with a silver and vanadium base nanomaterial. Odontology 2020; 108:661-668. [PMID: 32200485 DOI: 10.1007/s10266-020-00507-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/11/2020] [Indexed: 01/16/2023]
Abstract
The modification of endodontic sealers with nanoparticles to confer antimicrobial activity allow greater effect, with interaction at a molecular level. The nanostructured silver vanadate decorated with silver nanoparticles (AgVO3) is a nanomaterial unprecedented in dentistry for this application. This study incorporated the AgVO3 into three endodontic sealers of different compositions and evaluate the cytotoxicity and release of compounds. The groups of commercially available AH Plus, Sealer 26, and Endomethasone N and groups of the same sealers with incorporated AgVO3 (at concentrations 2.5, 5, 10%) were prepared, and extracts of the specimens were obtained for 24 h. The cell viability (cytotoxicity) of human gingival fibroblasts (HGF) was assessed after 24 h, 7 and 14 days. Silver (Ag+) and vanadium (V4+/V5+) ion release was quantified after 24 h by ICP-MS. Data were analyzed by Kruskal-Wallis and Dunn's post-hoc (α = 0.05). The cell viability was inversely proportional to treatment time. The Sealer 26 and Endomethasone N groups were cytotoxic for HGF cells, regardless of the incorporation of the AgVO3 (p > 0.05), and the incorporation reduced cell viability of AH Plus (p < 0.05). The release of ions was proportional to the concentration of AgVO3. AH Plus released more Ag+ ions, and Sealer 26 and Endomethasone N releases more V4+/V5+ ions. In conclusion, it was not possible to confirm the influence of AgVO3 on HGF cell viability to Sealer 26 and Endomethasone N, however, nanomaterial influenced cell-viability to AH Plus, so the commercial sealers can be cytotoxic in synergy with the nanomaterial. The release of Ag+ and V4+/V5+ was proportional to the AgVO3 incorporated.
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Affiliation(s)
- Ana Beatriz Vilela Teixeira
- Departament of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil.
| | - Denise Tornavoi de Castro
- Departament of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Marco Antônio Schiavon
- Departament of Natural Sciences, Federal University of São João Del-Rei, Praça Dom Helvécio, 74, Campus Dom Bosco, São João Del-Rei, MG, 36301-160, Brazil
| | - Andréa Cândido Dos Reis
- Departament of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
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Abdel Raheem IA, Abdul Razek A, Elgendy AA, Saleh NM, Shaaban MI, Abd El-Hady FK. Design, Evaluation And Antimicrobial Activity Of Egyptian Propolis-Loaded Nanoparticles: Intrinsic Role As A Novel And Naturally Based Root Canal Nanosealer. Int J Nanomedicine 2019; 14:8379-8398. [PMID: 31695372 PMCID: PMC6814318 DOI: 10.2147/ijn.s219577] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 09/12/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Propolis is a unique natural adhesive product collected by honeybees. It contains a diversity of bioactive compounds with reported functional properties such as antioxidants, antibacterial, antifungal, anti-inflammatory, antiviral and anticancer activity. Dental caries is a worldwide problem that caused by microbial growth usually progress from tooth enamel to the underlying pulpal tissues and root canal. This situation could be controlled by a sequence of steps to remove microorganisms and fill root canal with a suitable long-lasting root canal sealer. Unfortunately, leachable and degradation products of the currently used sealers compromised their antimicrobial activity by inflammatory modulation associated with irritation and toxicity of periapical tissues. MATERIALS AND METHODS Hence, propolis was selected to be designed as a natural root canal sealer due to its amazing functional properties. Moreover, its handling properties were enhanced and potentiated by its incorporation in polymeric nanoparticles (NPs). Frist, propolis was collected, extracted and analyzed for its bioactive compounds. After that, propolis-loaded NPs of PLGA (ProE-loaded NPs) were developed and fully characterized regarding physicochemical properties, in vitro release and in vitro cytotoxicity. Then, root canal sealers were fabricated and assayed for their antimicrobial activity. Both cytotoxicity and antimicrobial activity were compared to those of a model sealer; AH Plus®. RESULTS The results revealed that spherical nanoscopic NPs with narrow size distribution were obtained. ProE-loaded NPs exhibited accepted entrapment efficiency (>80) and prolonged release. In vitro cytotoxicity study confirmed the safety of ProE-loaded NPs. Also, the developed sealers showed antimicrobial activity versus bacterial strains of Enterococcus faecalis and Streptococcus mutans and antifungal activity against Candida albicans. CONCLUSION ProE-loaded NPs could be incorporated in and represented as a root canal sealer with prolonged release and enhanced cytocompatibility as well as antimicrobial activities.
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Affiliation(s)
| | - Amro Abdul Razek
- Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | | | - Noha Mohamed Saleh
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mona Ibrahem Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Faten K Abd El-Hady
- Chemistry of Natural and Microbial Products Department, National Research Centre, Giza, Egypt
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Teixeira L, Basso FG, Hebling J, Costa CADS, Mori GG, Silva-Sousa YTC, Oliveira CFD. Cytotoxicity Evaluation of Root Canal Sealers Using an In Vitro Experimental Model with Roots. Braz Dent J 2018; 28:165-171. [PMID: 28492745 DOI: 10.1590/0103-6440201701430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 02/20/2017] [Indexed: 11/21/2022] Open
Abstract
The aim of the present study was to evaluate the cytotoxicity of root canal sealers under conditions closely resembling a clinical reality. A primary human fibroblast cell line was seeded in 24-well acrylic plates with Dulbecco's modified Eagle's medium supplemented with 10% serum fetal bovine (SFB) and incubated for 24 h. Root canals from premolars were filled and individually attached to nylon devices to be stabilized in the wells with the already seeded cells. Specimens were divided into groups as follows: Control: gutta-percha cones (GPC); AH Plus+GPC; Sealapex+GPC; MTA Fillapex+GPC and Endofill+GPC. After 24 and 48 h, cell viability and morphology were evaluated by MTT assay and scanning electron microscopy (SEM), respectively. Statistical analysis was performed by Mann-Whitney test, complemented by Kruskal Wallis test (p<0.05). Only Endofill presented cytotoxicity after 24 h. MTA Fillapex and Endofill reduced the production of succinic desidrogenase after 48 h. AH Plus was non-toxic at any time point. SEM showed that the AH Plus and MTA Fillapex groups presented fibroblasts with morphology close to the control group, while the Endofill group presented few cells with thin extensions cells. The present study showed that good results were present in AH Plus and Sealapex, but not the Endofill group after 48 h. The method used enabled evaluation of the cytotoxicity of the studied sealers that diffused through the root apex.
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Affiliation(s)
- Ligia Teixeira
- Dental School, UANERP - Universidade de Ribeirão Preto, Ribeirão Preto, SP, Brazil.,Presidente Prudente School of Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | | | - Josimeri Hebling
- Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | | | - Graziela Garrido Mori
- Presidente Prudente School of Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
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Effect of root canal sealers on human periodontal ligament fibroblast viability: ex vivo study. Odontology 2017; 106:245-256. [PMID: 29243186 PMCID: PMC5995990 DOI: 10.1007/s10266-017-0329-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/26/2017] [Indexed: 12/19/2022]
Abstract
The aim of the study was to compare ex vivo the toxic effects of six root canal sealers immediately after mixing or setting on human periodontal ligament fibroblasts (HPdLF). Freshly mixed (I group) or set (allowed to dry for 24 h) (II group) specimens of AH Plus Jet (AH), Apexit Plus (AP), MTA Fillapex (FL), GuttaFlow (GF), MetaSEAL Soft (META), and Tubli-Seal (TS) were prepared. HPdLF were exposed for 24 h to the specimens. 3-(4,5-dimethylthiazolo-2-yl)-2,5-diphenyltetrazolium bromide assay was used to examine the effect of the root canal sealers on mitochondrial metabolic activity. Fluorescein isothiocyanate (FITC)-annexin V (AnV) and propidium iodide staining followed by flow cytometry was used to identify the effects of the materials on cell apoptosis/necrosis. Statistical analyses were performed by one-way ANOVA followed by post hoc tests, and significance was determined at P < 0.05. Most materials from the two groups reduced the viability of the cultured cells compared with the control group (P < 0.05). Statistical analysis showed significant differences in HPdLF viability between the individual materials in each group (P < 0.001). AH and AP induced a significant increase in the percentage of apoptotic cells, while TS, FL, and META elevated the proportion of necrotic cells compared with other materials and the controls (p < 0.05). The cytotoxic effects of the tested root canal sealers (both fresh and set) on HPdLF varied. Both forms of sealers were able to cause toxic effects by inducing apoptosis and necrosis in HPdLF. The cytotoxicity of FL, META, TS was mainly associated with necrosis, while AH and AP with apoptosis.
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12
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Scelza MZ, Nascimento JC, Silva LED, Gameiro VS, DE Deus G, Alves G. BiodentineTM is cytocompatible with human primary osteoblasts. Braz Oral Res 2017; 31:e81. [PMID: 29019553 DOI: 10.1590/1807-3107bor-2017.vol31.0081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/27/2017] [Indexed: 11/22/2022] Open
Abstract
Calcium silicate-based materials have been widely studied due to their resemblance to, and similar applicability of, mineral trioxide aggregate (MTA). Among these, Biodentine™ (BD) was specifically designed as a "dentin replacement" material for applications such as root perforations, apexification, treatment of resorptive lesions, and as a retrograde filling material. The present study aimed to assess the in vitro response of human primary osteoblasts to BD using MTA AngelusTM as a reference material, by simultaneously analyzing three different cell viability parameters, namely mitochondrial activity, membrane integrity, and cell density. BD and MTA extracts were prepared by incubation on culture media for 24 h or 42 days after mixing. Primary human osteoblasts were exposed to extracts for 24 h, at 37oC with 5% CO2, and cell viability was evaluated by the XTT, NRU, and CVDE assays. Both materials induced cell viability levels higher than 70% when extracted for 24 h. However, when cells were exposed to extracts with increased conditioning times, MTA presented significant cytotoxic effects (p < 0.05) in comparison to the control and MTA at 24 h. After 42 days, the XTT assay identified a significant reduction in cell viability by BD when compared to the control (p<0.05), despite the fact that levels above the 70% viability cutoff were attained for biocompatible materials. It can be concluded that BD is cytocompatible with human primary osteoblasts, indicating its adequacy in direct contact with bone tissues.
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Affiliation(s)
- Miriam Zaccaro Scelza
- Universidade Federal Fluminense - UFF, Department of Endodontics, Laboratory of Experimental Cell Culture, Niteroi, RJ, Brazil
| | - Joyce Costa Nascimento
- Universidade Federal Fluminense - UFF, Post Graduation Program on Dentistry, Niteroi, RJ, Brazil
| | | | - Vinícius Shott Gameiro
- Universidade Federal Fluminense - UFF, Hospital Universitário Antônio Pedro, Department of General Surgery, Niteroi, RJ, Brazil
| | - Gustavo DE Deus
- Universidade Federal Fluminense - UFF, Department of Endodontics, Niteroi, RJ, Brazil
| | - Gutemberg Alves
- Universidade Federal Fluminense - UFF, Department Cell and Molecular Biology, Niteroi, RJ, Brazil
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Siboni F, Taddei P, Zamparini F, Prati C, Gandolfi MG. Properties of BioRoot RCS, a tricalcium silicate endodontic sealer modified with povidone and polycarboxylate. Int Endod J 2017; 50 Suppl 2:e120-e136. [DOI: 10.1111/iej.12856] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 09/02/2017] [Indexed: 02/07/2023]
Affiliation(s)
- F. Siboni
- Laboratory of Biomaterials and Oral Pathology; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - P. Taddei
- Unit of Biochemistry; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - F. Zamparini
- Laboratory of Biomaterials and Oral Pathology; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
- Endodontic Clinical Section; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - C. Prati
- Endodontic Clinical Section; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - M. G. Gandolfi
- Laboratory of Biomaterials and Oral Pathology; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
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Cellular Responses in Human Dental Pulp Stem Cells Treated with Three Endodontic Materials. Stem Cells Int 2017; 2017:8920356. [PMID: 28751918 PMCID: PMC5511667 DOI: 10.1155/2017/8920356] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/22/2017] [Accepted: 04/12/2017] [Indexed: 02/07/2023] Open
Abstract
Human dental pulp stem cells (HDPSCs) are of special relevance in future regenerative dental therapies. Characterizing cytotoxicity and genotoxicity produced by endodontic materials is required to evaluate the potential for regeneration of injured tissues in future strategies combining regenerative and root canal therapies. This study explores the cytotoxicity and genotoxicity mediated by oxidative stress of three endodontic materials that are widely used on HDPSCs: a mineral trioxide aggregate (MTA-Angelus white), an epoxy resin sealant (AH-Plus cement), and an MTA-based cement sealer (MTA-Fillapex). Cell viability and cell death rate were assessed by flow cytometry. Oxidative stress was measured by OxyBlot. Levels of antioxidant enzymes were evaluated by Western blot. Genotoxicity was studied by quantifying the expression levels of DNA damage sensors such as ATM and RAD53 genes and DNA damage repair sensors such as RAD51 and PARP-1. Results indicate that AH-Plus increased apoptosis, oxidative stress, and genotoxicity markers in HDPSCs. MTA-Fillapex was the most cytotoxic oxidative stress inductor and genotoxic material for HDPSCs at longer times in preincubated cell culture medium, and MTA-Angelus was less cytotoxic and genotoxic than AH-Plus and MTA-Fillapex at all times assayed.
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Al Wafai R, El-Rabih W, Katerji M, Safi R, El Sabban M, El-Rifai O, Usta J. Chemosensitivity of MCF-7 cells to eugenol: release of cytochrome-c and lactate dehydrogenase. Sci Rep 2017; 7:43730. [PMID: 28272477 PMCID: PMC5341120 DOI: 10.1038/srep43730] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 01/27/2017] [Indexed: 11/18/2022] Open
Abstract
Phytochemicals have been extensively researched for their potential anticancer effects. In previous study, direct exposure of rat liver mitochondria to eugenol main ingredient of clove, uncoupled mitochondria and increased F0F1ATPase activity. In the present study, we further investigated the effects of eugenol on MCF-7 cells in culture. Eugenol demonstrated: a dose-dependent decrease in viability (MTT assay), and proliferation (real time cell analysis) of MCF-7 cells, (EC50: 0.9 mM); an increase in reactive oxygen species; a decrease in ATP level and mitochondrial membrane potential (MitoPT JC-1 assay); and a release of cytochrome-c and lactate dehydrogenase (Cytotoxicity Detection Kit PLUS) into culture media at eugenol concentration >EC50. Pretreatment with the antioxidants Trolox and N-acetyl cysteine partially restored cell viability and decreased ROS, with Trolox being more potent. Expression levels of both anti- and pro-apoptotic markers (Bcl-2 and Bax, respectively) decreased with increasing eugenol concentration, with no variation in their relative ratios. Eugenol-treated MCF-7 cells overexpressing Bcl-2 exhibited results similar to those of MCF-7. Our findings indicate that eugenol toxicity is non-apoptotic Bcl-2 independent, affecting mitochondrial function and plasma membrane integrity with no effect on migration or invasion. We report here the chemo-sensitivity of MCF-7 cells to eugenol, a phytochemical with anticancer potential.
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Affiliation(s)
- Rana Al Wafai
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Warde El-Rabih
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Meghri Katerji
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Remi Safi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Marwan El Sabban
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Omar El-Rifai
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Julnar Usta
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Silva EJNL, Carvalho NKD, Ronconi CT, De-Deus G, Zuolo ML, Zaia AA. Cytotoxicity Profile of Endodontic Sealers Provided by 3D Cell Culture Experimental Model. Braz Dent J 2016; 27:652-656. [DOI: 10.1590/0103-6440201600792] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 08/25/2016] [Indexed: 11/22/2022] Open
Abstract
Abstract The aim of the present study was to evaluate the cytotoxic effects of five endodontic sealers (AH Plus, Endomethasone N, EndoSequence BC, MTA Fillapex and Pulp Canal Sealer EWT) using a three-dimensional (3D) cell culture model. A conventional bi-dimensional (2D) cell culture model was used as reference technique for comparison. Balb/c 3T3 fibroblasts were cultured in conventional bi-dimensional cell culture and in rat-tail collagen type I three-dimensional cell culture models. Then, both cell cultures were incubated with elutes of freshly mixed endodontic sealers for 24 h. Cell viability was measured by the methyl-thiazol-diphenyltetrazolium assay (MTT). Data were statistically analyzed using ANOVA and the Tukey test at a significance level of p<0.05. All tested sealers exhibited cytotoxic effects; however, cytotoxic effect was culture model- and sealer-dependent. Sealers showed higher cytotoxicity in 2D than in 3D cell culture model (p<0.05). In both conditions, EndoSequence BC showed the lowest cytotoxicity (p<0.05). MTA Fillapex was much more cytotoxic than the other tested endodontic sealers (p<0.05), with the exception of AH Plus in the 2D cell culture model (p>0.05). Endomethasone N and Pulp Canal Sealer EWT showed lower cytotoxic effects than AH Plus in 2D cell culture model (p<0.05); however no statistical differences was observed among these sealers in 3D cell culture model. It may be concluded that cytotoxicity was higher in 2D cell culture compared to 3D cell culture. EndoSequence BC sealer exhibited the highest cytocompatibility and MTA Fillapex the lowest cytocompatibility.
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Basak V, Bahar TE, Emine K, Yelda K, Mine K, Figen S, Rustem N. Evaluation of cytotoxicity and gelatinases activity in 3T3 fibroblast cell by root repair materials. BIOTECHNOL BIOTEC EQ 2016. [DOI: 10.1080/13102818.2016.1192960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Varol Basak
- Faculty of Medicine, Department of Biophysics, Istanbul University, Istanbul, Turkey
| | - Tuna Elif Bahar
- Faculty of Dentistry, Department of Pedodontics, Istanbul University, Istanbul, Turkey
| | - Karsli Emine
- Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Kasimoglu Yelda
- Faculty of Dentistry, Department of Pedodontics, Istanbul University, Istanbul, Turkey
| | - Koruyucu Mine
- Faculty of Dentistry, Department of Pedodontics, Istanbul University, Istanbul, Turkey
| | - Seymen Figen
- Faculty of Dentistry, Department of Pedodontics, Istanbul University, Istanbul, Turkey
| | - Nurten Rustem
- Faculty of Medicine, Department of Biophysics, Istanbul University, Istanbul, Turkey
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Cytotoxicity and gelatinolytic activity of a new silicon-based endodontic sealer. J Appl Biomater Funct Mater 2015; 13:e376-80. [PMID: 26391870 DOI: 10.5301/jabfm.5000238] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2015] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To compare the cytotoxicity, gelatinolytic activity, and protein levels (MMP-2 and MMP-9) produced by 3T3 fibroblasts cells after stimulation with GuttaFlow 2 and AH Plus. METHODS 3T3 fibroblasts were incubated with elutes of GuttaFlow 2 and AH Plus for 24 h. The cytotoxicity of tested materials was determined using the MTT and the LDH assay. Supernatants of cell cultures incubated with sealers were collected to determine the levels of MMP-2 and MMP-9 gelatinolytic activity by gelatin zymography. Cell lysates were used to determine MMP-2 and MMP-9 protein levels by Western Blot. Data were analyzed using ANOVA and Tukey test (P<0.05). RESULTS AH Plus showed significantly less cell viability (mitochondrial activity of cells) than GuttaFlow 2 (P<0.01). Moreover, GuttaFlow 2 was noncytotoxic, showing no statistically significant difference in LDH leakage levels compared to the control group (P>0.05). Specific characterization of MMPs demonstrated that GuttaFlow 2 seemed not to affect MMP-2 levels compared with the control group, while AH Plus had elevated gelatinolytic activity and protein levels of MMP-2 as confirmed by quantitative measurements. No detectable gelatinolytic activity or protein levels of MMP-9 (92 kDa) was observed in any tested group. CONCLUSIONS GuttaFlow 2 did not showed cytotoxic effects and did not induce MMP-2 or MMP-9 expression.
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Slompo C, Peres-Buzalaf C, Gasque KCDS, Damante CA, Ordinola-Zapata R, Duarte MAH, Oliveira RCD. Experimental Calcium Silicate-Based Cement with and without Zirconium Oxide Modulates Fibroblasts Viability. Braz Dent J 2015; 26:587-91. [DOI: 10.1590/0103-6440201300316] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 11/16/2015] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to verify whether the use of zirconium oxide as a radiopacifier of an experimental calcium silicate-based cement (WPCZO) leads to cytotoxicity. Fibroblasts were treated with different concentrations (10 mg/mL, 1 mg/mL, and 0.1 mg/mL) of the cements diluted in Dulbecco's modified Eagle's medium (DMEM) for periods of 12, 24, and 48 h. Groups tested were white Portland cement (WPC), white Portland cement with zirconium oxide (WPCZO), and white mineral trioxide aggregate Angelus (MTA). Control group cells were not treated. The cytotoxicity was evaluated through mitochondrial-activity (MTT) and cell-density (crystal violet) assays. All cements showed low cytotoxicity. In general, at the concentration of 10 mg/mL there was an increase in viability of those groups treated with WPC and WPCZO when compared to the control group (p<0.05). A similar profile for the absorbance values was noted among the groups: 10 mg/mL presented an increase in viability compared to the control group. On the other hand, smaller concentrations presented a similar or lower viability compared to the control group, in general. A new dental material composed of calcium silicate-based cement with 20% zirconium oxide as the radiopacifier showed low cytotoxicity as a promising material to be exploited for root-end filling.
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Dimitrova-Nakov S, Uzunoglu E, Ardila-Osorio H, Baudry A, Richard G, Kellermann O, Goldberg M. In vitro bioactivity of Bioroot™ RCS, via A4 mouse pulpal stem cells. Dent Mater 2015; 31:1290-7. [DOI: 10.1016/j.dental.2015.08.163] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 08/07/2015] [Accepted: 08/17/2015] [Indexed: 12/29/2022]
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Silva EJNL, Senna PM, De-Deus G, Zaia AA. Cytocompatibility of Biodentine using a three-dimensional cell culture model. Int Endod J 2015; 49:574-80. [DOI: 10.1111/iej.12485] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/17/2015] [Indexed: 11/28/2022]
Affiliation(s)
- E. J. N. L. Silva
- Department of Endodontics; School of Dentistry; Grande Rio University (UNIGRANRIO); Rio de Janeiro Brazil
| | - P. M. Senna
- Department of Endodontics; School of Dentistry; Grande Rio University (UNIGRANRIO); Rio de Janeiro Brazil
| | - G. De-Deus
- Department of Endodontics; School of Dentistry; Grande Rio University (UNIGRANRIO); Rio de Janeiro Brazil
| | - A. A. Zaia
- Department of Endodontics; Piracicaba School of Dentistry; Campinas State University (UNICAMP); Piracicaba Brazil
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Herrera DR, Silva EJNL, Santos CC, Zaia AA, Ferraz CCR, Almeida JFA, Gomes BPFA. Root canal content from primary endodontic infection and upregulation of gelatinases in fibroblast cells. Int Endod J 2015; 48:1168-74. [DOI: 10.1111/iej.12421] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 12/03/2014] [Indexed: 11/26/2022]
Affiliation(s)
- D. R. Herrera
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
| | - E. J. N. L. Silva
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
- Health and Science Center; Grande Rio University (UNIGRANRIO); Rio de Janeiro Brazil
| | - C. C. Santos
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
| | - A. A. Zaia
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
| | - C. C. R. Ferraz
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
| | - J. F. A. Almeida
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
| | - B. P. F. A. Gomes
- Department of Restorative Dentistry; Endodontics Division; Piracicaba Dental School; State University of Campinas - UNICAMP; Piracicaba Brazil
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Silva EJNL, Herrera DR, Rosa TP, Duque TM, Jacinto RC, Gomes BPFDA, Zaia AA. Evaluation of cytotoxicity, antimicrobial activity and physicochemical properties of a calcium aluminate-based endodontic material. J Appl Oral Sci 2014; 22:61-7. [PMID: 24626250 PMCID: PMC3908766 DOI: 10.1590/1678-775720130031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 11/01/2013] [Indexed: 11/22/2022] Open
Abstract
UNLABELLED A calcium aluminate-based endodontic material, EndoBinder, has been developed in order to reduce MTA negative characteristics, preserving its biological properties and clinical applications. OBJECTIVES The aim of this study was to evaluate the cytotoxicity, antimicrobial activity, pH, solubility and water sorption of EndoBinder and to compare them with those of white MTA (WMTA). MATERIAL AND METHODS Cytotoxicity was assessed through a multiparametric analysis employing 3T3 cells. Antimicrobial activity against Enterococcus faecalis (ATCC 29212), Staphylococcus aureus. (ATCC 25923) and Candida albicans (ATCC 10556) was determined by the agar diffusion method. pH was measured at periods of 3, 24, 72 and 168 hours. Solubility and water sorption evaluation were performed following ISO requirements. Data were statistically analyzed by ANOVA and Tukey`s test with a significance level of 5%. RESULTS EndoBinder and WMTA were non-cytotoxic in all tested periods and with the different cell viability parameters. There was no statistical differences between both materials (P>.05). All tested materials were inhibitory by direct contact against all microbial strains tested. EndoBinder and WMTA presented alkaline pH in all tested times with higher values of pH for WMTA (P<.05). Both materials showed values complying with the solubility minimum requirements. However, EndoBinder showed lower solubility than WMTA (P<.05). No statistical differences were observed regarding water sorption (P>.05). CONCLUSION Under these experimental conditions, we concluded that the calcium aluminate-based endodontic material EndoBinder demonstrated suitable biological and physicochemical properties, so it can be suggested as a material of choice in root resorption, perforations and root-end filling.
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Affiliation(s)
- Emmanuel João Nogueira Leal Silva
- Grande Rio University, Health and Science Center, Rio de JaneiroRJ, Brazil, Health and Science Center, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - Daniel Rodrigo Herrera
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
| | - Tiago Pereira Rosa
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
| | - Thais Mageste Duque
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
| | - Rogério Castilho Jacinto
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
| | - Brenda Paula Figueiredo de Almeida Gomes
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
| | - Alexandre Augusto Zaia
- State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry, Endodontics Division, PiracicabaSP, Brazil, Department of Restorative Dentistry, Endodontics Division, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
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Winkler C, Schäfer L, Felthaus O, Allerdings J, Hahnel S, Behr M, Bürgers R. The bacterial adhesion on and the cytotoxicity of various dental cements used for implant-supported fixed restorations. Acta Odontol Scand 2014; 72:241-50. [PMID: 24074394 DOI: 10.3109/00016357.2013.828320] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Bacterial adhesion on and cytotoxicity of eight luting agents used for implant-supported restorations were investigated. MATERIALS AND METHOD Surface roughness (Ra), surface free energy (SFE) values and three-dimensional images by atomic-force microscopy of circular specimens were determined. Bacterial suspensions of Streptococcus sanguinis and Streptococcus epidermidis were incubated at 37°C for 2 h. Adhering bacteria were examined with fluorescence dye CytoX-Violet, stained with 4',6-diamidino-2-phenylindole (DAPI) and visualized by fluorescence-microscopy. Cytotoxicity-testing was done with WST-1-tests (water soluble tetrazolium). No significant differences, neither with regard to Ra nor regarding SFE were determined. RESULTS Adherence of S. sanguinis was less on titanium, TempBondNE and TempBond. TempBond, TempBondNE, RelyX Unicem and Implantlink Semi Classic presented low amounts of S. epidermidis. WST-testing showed high cytotoxic potential of Harvard, Aqualox, TempBondNE and TempBond. No combination of low adherent bacteria with low cytotoxicity was found. CONCLUSION From a biological in-vitro perspective, none of the cements may be recommended for implant-supported restorations.
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Shrestha A, Kishen A. Antibiofilm efficacy of photosensitizer-functionalized bioactive nanoparticles on multispecies biofilm. J Endod 2014; 40:1604-10. [PMID: 25260731 DOI: 10.1016/j.joen.2014.03.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/13/2014] [Accepted: 03/14/2014] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Newer disinfection strategies based on antibacterial nanoparticles and photodynamic therapy (PDT) aim to eliminate residual biofilm bacteria during root canal treatment. The aim of the current study was to test the newly developed rose bengal-functionalized chitosan nanoparticles (CSRBnps) for their interaction/uptake with monospecies bacteria/biofilm and assess their antibiofilm efficacy on a multispecies biofilm model in vitro. METHODS The interaction of CSRBnps with bacterial cells was conducted using atomic force microscopy. Their membrane-damaging effect was determined by measuring the absorbance at 260 nm (OD260nm) using Enterococcus faecalis. The penetration of CSRBnps into E. faecalis biofilms was evaluated using confocal laser scanning microscopy (CLSM). Multispecies biofilms of Streptococcus oralis, Prevotella intermedia, and Actinomyces naeslundii were grown on dentin sections for 21 days to assess the antibiofilm efficacy. The biofilms were subjected to PDT (60 J/cm(2)) using CSRBnps and rose bengal. The treated/untreated biofilms were examined under scanning electron microscopy and CLSM. RESULTS The CSRBnps synthesized were 60 ± 20 nm and showed absorption spectra similar to rose bengal. Atomic force microscopy showed adherence of CSRBnps to bacteria, roughening of cell surface, and cell disruption after PDT. CSRBnp treatment resulted in significantly increased bacterial membrane damage (P < .05). CSRBnps exhibited deeper penetration into the biofilm structure. Scanning electron microscopy and CLSM confirmed the complete disruption of multispecies biofilm with a reduction in viable bacteria and biofilm thickness (P < .05). CONCLUSIONS These novel photosensitizer functionalized bioactive nanoparticles with increased affinity to bacterial cell membrane, higher penetration into biofilm structure, and enhanced ability to eliminate clinically relevant multispecies bacterial biofilm present a potential antibiofilm agent for root canal disinfection.
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Affiliation(s)
- Annie Shrestha
- Discipline of Endodontics, University of Toronto, Toronto, Ontario, Canada
| | - Anil Kishen
- Discipline of Endodontics, University of Toronto, Toronto, Ontario, Canada.
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Attik GN, Villat C, Hallay F, Pradelle-Plasse N, Bonnet H, Moreau K, Colon P, Grosgogeat B. In vitro biocompatibility of a dentine substitute cement on human MG63 osteoblasts cells: Biodentine™ versus MTA(®). Int Endod J 2014; 47:1133-41. [PMID: 24517569 DOI: 10.1111/iej.12261] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 02/04/2014] [Indexed: 11/29/2022]
Abstract
AIM To compare the in vitro biocompatibility of Biodentine™ and White ProRoot(®) mineral trioxide aggregate (MTA(®) ) with MG63 osteoblast-like cells and to characterize the cement surface. METHODOLOGY A direct contact model for MG63 osteoblast-like cells with cements was used for 1, 3 and 5 days. Four end-points were investigated: (i) cement surface characterization by atomic force microscopy (AFM), (ii) cell viability by MTT assay, (iii) protein amount quantification by Bradford assay and (iv) cell morphology by SEM. Statistical analyses were performed by analysis of variance (anova) with a repetition test method. RESULTS The roughness of the cements was comparable as revealed by AFM analysis. The MTT test for Biodentine™ was similar to that of MTA(®) . Biodentine™ and MTA(®) induced a similar but slight decrease in metabolic activity. The amount of total protein was significantly enhanced at day three (P < 0.05) but slightly decreased at day five for both tested samples. Biodentine™ was tolerated as well as MTA(®) in all cytotoxicity assays. SEM observations showed improvement of cell attachment and proliferation on both material surfaces following the three incubation periods. CONCLUSION The biocompatibility of Biodentine™ to bone cells was comparable to MTA(®) .
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Affiliation(s)
- G N Attik
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Université Lyon1, Villeurbanne, France
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Guiotti FA, Kuga MC, Duarte MAH, Sant'Anna Júnior A, Faria G. Effect of calcium hydroxide dressing on push-out bond strength of endodontic sealers to root canal dentin. Braz Oral Res 2014; 28. [DOI: 10.1590/s1806-83242014.50000002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Trichês KM, Júnior JS, Calixto JB, Machado R, Rosa TP, Silva EJNL, Vansan LP. Connective tissue reaction of rats to a new zinc-oxide-eugenol endodontic sealer. Microsc Res Tech 2013; 76:1292-6. [PMID: 24123537 DOI: 10.1002/jemt.22299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 08/25/2013] [Accepted: 09/21/2013] [Indexed: 11/06/2022]
Abstract
The aim of this study was to evaluate the biocompatibility in rat subcutaneous connective tissue of a new zinc oxide endodontic sealer (Endomethasone N) compared to those provided by Endofill and Sealer 26. Polyethylene tubes containing the test materials were implanted into dorsal subcutaneous connective tissue of Wistar albino rats. After 7 and 42 days, the implants with the surrounding tissue were collected, fixed, and processed for histologic evaluation. Sections were evaluated for the presence of inflammatory cells (poly or monomorfonuclear), blood vessels, necrosis area, and thickness of fibrous capsule. Comparisons between groups and time-periods were performed with Kruskal-Wallis and Mann-Whitney U non-parametric tests for 5% significance level. No differences in the biocompatibility patterns among the materials for the 2 experimental periods were observed. Independently of the sealer, the tissue behavior showed a tendency to decrease the irritation effect over time. It can be concluded that all sealers are irritant, but its toxicity decreased with time. Endomethásone N showed biocompatible characteristics comparable with those provided by Endofill and Sealer 26.
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Affiliation(s)
- Karen Melina Trichês
- Integrated College from North of Minas Gerais, FUNORTE, Florianópolis/SC, Brazil
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Silva EJNLD, Santos CC, Zaia AA. Long-term cytotoxic effects of contemporary root canal sealers. J Appl Oral Sci 2013; 21:43-7. [PMID: 23559111 PMCID: PMC3881813 DOI: 10.1590/1678-7757201302304] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 01/07/2013] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES The aim of the present study was to investigate the effects of root canal sealers on the cytotoxicity of 3T3 fibroblasts during a period of 5 weeks. MATERIAL AND METHODS Fibroblasts (3T3, 1×105 cells per well) were incubated with elutes of fresh specimens from eight root canal sealers (AH Plus, Epiphany, Endomethasone N, EndoREZ, MTA Fillapex, Pulp Canal Sealer EWT, RoekoSeal and Sealapex) and with elutes of the same specimens for 5 succeeding weeks after immersing in simulated body fluid. The cytotoxicity of all root canal sealers was determined using the MTT assay. Data were analyzed using ANOVA and Tukey's test. RESULTS RoekoSeal was the only sealer that did not show any cytotoxic effects (p<0.05). All the other tested sealers exhibited severe toxicity initially (week 0). MTA Fillapex remained moderately cytotoxic after the end of experimental period. Toxicity of the other tested sealers decreased gradually over time. The evaluated root canal sealers presented varying degrees of cytotoxicity, mainly in fresh mode. CONCLUSIONS RoekoSeal had no cytotoxic effect both freshly mixed and in the other tested time points. MTA Fillapex was associated with significantly less cell viability when compared to the other tested root canal sealers.
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Long-term Dose- and Time-dependent Effects of Endodontic Sealers in Human In Vitro Osteoclastogenesis. J Endod 2013; 39:833-8. [DOI: 10.1016/j.joen.2012.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2012] [Revised: 10/24/2012] [Accepted: 11/06/2012] [Indexed: 01/08/2023]
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Accorsi-Mendonça T, Silva EJNL, Marcaccini AM, Gerlach RF, Duarte KMR, Pardo APS, Line SRP, Zaia AA. Evaluation of gelatinases, tissue inhibitor of matrix metalloproteinase-2, and myeloperoxidase protein in healthy and inflamed human dental pulp tissue. J Endod 2013; 39:879-82. [PMID: 23791255 DOI: 10.1016/j.joen.2012.11.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 11/05/2012] [Accepted: 11/06/2012] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The aim of this study was to compare the gelatinolytic activity of matrix metalloproteinase (MMP)-2 and MMP-9 and the expression of tissue inhibitor of matrix metalloproteinase (TIMP)-2 and myeloperoxidase protein (MPO) in clinically healthy human pulp and inflamed pulp tissue specimens. METHODS Twenty dental pulps clinically diagnosed as inflammatory tissues and 20 healthy pulp tissues from enclosed third molars were harvested and evaluated. The gelatinolytic activity for MMP-2 and MMP-9 was assessed by using the zymography technique, TIMP-2 gene expression was evaluated using the enzyme-linked immunosorbent assay, and MPO was determined using the MPO assay. RESULTS Data showed increased levels of MMP-9, active MMP-2, TIMP-2, and MPO in inflammatory pulp tissues compared with healthy tissues (P < .05). No statistical difference could be observed for pro-MMP-2 (P > .05). CONCLUSIONS Although all samples were associated with MMP-2 expression, the active form of this MMP was observed only in inflamed pulps. Inflamed pulps showed an up-regulation of MMP-9, TIMP-2, and MPO.
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Silva EJNL, Rollemberg CB, de Souza Coutinho-Filho T, Zaia AA. A multiparametric assay to compare the cytotoxicity of soy milk with different storage media. Dent Traumatol 2012; 29:319-22. [DOI: 10.1111/j.1600-9657.2012.01175.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2012] [Indexed: 11/27/2022]
Affiliation(s)
- Emmanuel J. N. L. Silva
- Endodontic Division; Department of Restorative Dentistry, Piracicaba Dental School; State University of Campinas; Piracicaba; SP; Brazil; Brazil
| | - Carolina B. Rollemberg
- Endodontic Division, Department of Restorative Dentistry; State University of Rio de Janeiro; Rio de Janeiro; Brazil
| | - Tauby de Souza Coutinho-Filho
- Endodontic Division, Department of Restorative Dentistry; State University of Rio de Janeiro; Rio de Janeiro; Brazil
| | - Alexandre A. Zaia
- Endodontic Division; Department of Restorative Dentistry, Piracicaba Dental School; State University of Campinas; Piracicaba; SP; Brazil; Brazil
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Silva EJNL, Herrera DR, Almeida JFA, Ferraz CCR, Gomes BPFA, Zaia AA. Evaluation of cytotoxicity and up-regulation of gelatinases in fibroblast cells by three root repair materials. Int Endod J 2012; 45:815-20. [DOI: 10.1111/j.1365-2591.2012.02038.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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