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Elias VV, Lima RB, Lucisano MP, Araujo LDC, Pucinelli CM, Nelson-Filho P, da Silva RAB, da Silva LAB. Inflammatory response to bioceramic and epoxy resin-based endodontic sealers implanted in mice subcutaneous tissue: An in vivo study. Microsc Res Tech 2024; 87:2447-2458. [PMID: 38853352 DOI: 10.1002/jemt.24631] [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: 10/28/2023] [Revised: 04/23/2024] [Accepted: 05/30/2024] [Indexed: 06/11/2024]
Abstract
To evaluate the inflammatory tissue response to BioRoot™ RCS (BR) and AH Plus Jet (AHPJ) sealers implanted in mice subcutaneous tissue. It was hypothesized that the inflammatory tissue response to BR would be milder than to AHPJ. An in vivo study was carried out using isogenic mice. The sealers were implanted during standardized surgical procedures. The inflammatory response was evaluated by microscopic analysis and von Kossa reaction in the reactionary tissue around the specimens after 7, 21, and 63 days. For comparisons, a zinc oxide and eugenol sealer (ZOE) was used as a positive control, in addition to a negative control without a sealer (n = 10 per group/period). All statistical analyses considered a significance level of 5%. All endodontic sealers triggered an inflammatory tissue response after 7 days. BR had a higher inflammatory cell count and a thicker fibrous capsule when compared with AHPJ, but both were less inflammatory than ZOE (p < .001). After 21 days, BR continued to trigger an intense inflammatory tissue response, higher in both microscopic parameters compared to AHPJ, and a thicker fibrous capsule than ZOE (p < .001). After 63 days, the inflammatory tissue response decreased in BR, matching the fibrous capsule thickness with AHPJ and ZOE. BR promoted intense calcium precipitation in all study periods. After 63 days, AHPJ and BR sealers were more biocompatible to subcutaneous mice tissue, but AHPJ present better early inflammatory response, as well as BR showed potential bioactivity. RESEARCH HIGHLIGHTS: The inflammatory tissue response triggered by a bioceramic endodontic sealer (BR) was not milder than that triggered by an epoxy-resin based endodontic sealer (AHPJ) during the first 3 weeks, considering the microscopic analysis of the reactionary tissue.
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Affiliation(s)
- Vanessa Valente Elias
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ricardo Barbosa Lima
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Marília Pacífico Lucisano
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lisa Danielly Curcino Araujo
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Carolina Maschietto Pucinelli
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Paulo Nelson-Filho
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Raquel Assed Bezerra da Silva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Léa Assed Bezerra da Silva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Fuest S, Salviano-Silva A, Maire CL, Xu Y, Apel C, Grust ALC, Delle Coste A, Gosau M, Ricklefs FL, Smeets R. Doping of casted silk fibroin membranes with extracellular vesicles for regenerative therapy: a proof of concept. Sci Rep 2024; 14:3553. [PMID: 38347108 PMCID: PMC10861453 DOI: 10.1038/s41598-024-54014-y] [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: 12/15/2023] [Accepted: 02/07/2024] [Indexed: 02/15/2024] Open
Abstract
Bioactive material concepts for targeted therapy have been an important research focus in regenerative medicine for years. The aim of this study was to investigate a proof-of-concept composite structure in the form of a membrane made of natural silk fibroin (SF) and extracellular vesicles (EVs) from gingival fibroblasts. EVs have multiple abilities to act on their target cell and can thus play crucial roles in both physiology and regeneration. This study used pH neutral, degradable SF-based membranes, which have excellent cell- and tissue-specific properties, as the carrier material. The characterization of the vesicles showed a size range between 120 and 180 nm and a high expression of the usual EV markers (e.g. CD9, CD63 and CD81), measured by nanoparticle tracking analysis (NTA) and single-EV flow analysis (IFCM). An initial integration of the EVs into the membrane was analyzed using scanning and transmission electron microscopy (SEM and TEM) and vesicles were successfully detected, even if they were not homogeneously distributed in the membrane. Using direct and indirect tests, the cytocompatibility of the membranes with and without EVs could be proven and showed significant differences compared to the toxic control (p < 0.05). Additionally, proliferation of L929 cells was increased on membranes functionalized with EVs (p > 0.05).
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Affiliation(s)
- Sandra Fuest
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.
| | - Amanda Salviano-Silva
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Cecile L Maire
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Yong Xu
- Department of Biohybrid and Medical Textiles (BioTex), AME - Institute of Applied Medical Engineering, Helmholtz Institute of RWTH Aachen University and Hospital, 52074, Aachen, Germany
| | - Christian Apel
- Department of Biohybrid and Medical Textiles (BioTex), AME - Institute of Applied Medical Engineering, Helmholtz Institute of RWTH Aachen University and Hospital, 52074, Aachen, Germany
| | - Audrey Laure Céline Grust
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Arianna Delle Coste
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Martin Gosau
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Franz L Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
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Morisbak E, Uvsløkk S, Samuelsen JT. In vitro effects of dental monomer exposure - Dependence on the cell culture model. Toxicol In Vitro 2020; 67:104906. [PMID: 32502623 DOI: 10.1016/j.tiv.2020.104906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/16/2020] [Accepted: 05/28/2020] [Indexed: 12/21/2022]
Abstract
Methacrylate monomers are major components of resin-based biomaterials. The polymerization of these materials is never complete, and methacrylates leaking from cured materials cause exposure of patients. Only some selected methacrylates have thoroughly been tested for possible interaction with living cells. In the current study, we compared the effects of 2-hydroxyethyl-methacrylate (HEMA; a carefully studied methacrylate) and hydroxypropyl-methacrylate (HPMA; a scarcely investigated methacrylate). Five cell lines differing in both source and cell type were used. The cells were exposed to methacrylates (1-8 mM). Cell viability, cell death, glutathione levels, reactive oxygen species (ROS), and cell growth pattern were measured. Both methacrylates reduced cell viability, and glutathione depletion was observed in all cell lines. The cell death pattern varied among the cell lines. The ROS levels and cell growth pattern also differed between the cell lines after exposure to methacrylate monomers. No difference between HEMA and HPMA exposures were observed in any of the cell lines. The variation between cell lines shows that the measured methacrylate toxicity depends heavily on the test system chosen. Further, the conformity between HEMA and HPMA effects suggests that the two methacrylates similarly affect living cells.
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Affiliation(s)
- Else Morisbak
- Nordic Institute of Dental Materials (NIOM), Oslo, Norway
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Jia M, Nai Z, Han Y, Huang Z, Wang J, He X. Physical and biological properties of a novel root canal sealer modified by polyhexamethylene guanidine. Dent Mater J 2020; 39:141-147. [PMID: 31694994 DOI: 10.4012/dmj.2018-154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The key of the root canal therapy is to eliminate the micro-organism infection, fill the root canal tightly and reduce the stimulation to the periapical tissues. However, it is quite difficult to meet all the conditions due to the defect of the material. Here we develop a novel root canal sealer (MZOE), in which zinc oxide eugenol (ZOE) were fabricated with polyhexamethylene guanidine (PHMG), and the PHMG's concentration is 0.8, 1.0, 1.2 and 1.4%. Our investigation tested its physical properties, antibacterial effect to E. faecalis, C. albicans, E. coli, S. aureus and cytotoxicity to human periodontal ligament fibroblasts (HPDLFs). The physical properties of the MZOE conformed to the ISO 6876:2001, and its antibacterial effect was stronger than ZOE (p<0.05), the RGR of HPDLFs was tested between 1 to 24%, belonging to moderate cytotoxicity. It was suggested that MZOE had good physical properties, high antibacterial effect, and moderate cytotoxicity.
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Affiliation(s)
- Mei'e Jia
- School of Stomatology, Lanzhou University
| | | | - Yu Han
- School of Stomatology, Lanzhou University
| | | | - Jun Wang
- Dental Department, People's Hospital of Gansu Province
| | - Xiangyi He
- School of Stomatology, Lanzhou University
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Souza GL, Rosatto CMP, Silva MJB, Silva MV, Rocha Rodrigues DB, Moura CCG. Evaluation of apoptosis/necrosis and cytokine release provoked by three root canal sealers in human polymorphonuclears and monocytes. Int Endod J 2018; 52:629-638. [PMID: 30388307 DOI: 10.1111/iej.13036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/31/2018] [Indexed: 12/14/2022]
Abstract
AIM To evaluate the in vitro cytotoxicity and cytokine release of three fresh root canal sealers and to determine the type of cell death they induce. METHODOLOGY The sealers tested were Sealer 26 (S26), AH Plus (AHP), and Endosequence BC Sealer (END). Fresh sealers were cultivated in contact with monocytes and polymorphonuclears (PMNs) obtained from the peripheral blood of humans. Cell viability, apoptosis and necrosis were analysed at 4 h (PMNs) or 24 h (monocytes) using Annexin-V and propidium iodide in a cytometer. The supernatants were used to quantify Interleukin (IL)-4, IL-6, IL-10, IL-12 and tumour necrosis factor-α (TNF-α) in monocytes and IL-8 in PMNs by ELISA. One-way ANOVA and the Tukey post-test were used to compare data for cytotoxicity, and the multiple T-test was used to determine the differences between sealers in the release of cytokines that were statistically significant. RESULTS After 4 h of treatment, S26 was associated with greater cell viability than the other sealers (P < 0.05) in the PMN culture and had similar values of necrosis as END (P > 0.05). After 24 h of treatment, AHP and END had greater monocyte cell viability than S26 (P < 0.05), which had more necrosis (P < 0.05). END had the lowest levels of IL-12 compared to the other sealers (P < 0.05) and higher levels of IL-6 compared to S26 (P < 0.05). The tested sealers did not differ in the release of IL-8, IL-10, TNF-α and IL-4 (P > 0.05). CONCLUSIONS The effect of toxic agents released varied depending on the cell type studied. The composition of the sealers appeared to alter the form of self-regulation in the production of these cytokines by cells.
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Affiliation(s)
- G L Souza
- Department of Endodontics, School of Dentistry, University of Uberlândia, Uberlândia, MG, Brazil
| | - C M P Rosatto
- Department of Endodontics, School of Dentistry, University of Uberlândia, Uberlândia, MG, Brazil
| | - M J B Silva
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - M V Silva
- Department of Microbiology, Immunology and Parasitology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil
| | - D B Rocha Rodrigues
- Department of Microbiology, Immunology and Parasitology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil
| | - C C G Moura
- Department of Endodontics, School of Dentistry, University of Uberlândia, Uberlândia, MG, Brazil
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6
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Graunaite I, Lodiene G, Arandarcikaite O, Pukalskas A, Machiulskiene V. Leachables and cytotoxicity of root canal sealers. J Oral Sci 2018; 60:381-387. [PMID: 30101818 DOI: 10.2334/josnusd.17-0173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This in vitro study aimed to detect leaching components from an epoxy resin- and a methacrylate-based endodontic sealer and correlate them to cytotoxicity induced by material extracts for up to 36 weeks. We qualitatively determined the substances released by aged AH Plus and RealSeal SE specimens at seven intervals between 0 and 36 weeks. Quantification was performed by ultra-performance liquid chromatography/mass spectrometry (UPLC/MS). We determined the viability of murine macrophage J774 cells after 24 h exposure to material extracts, at each interval, using a fluorescence staining/microscopy method. The leachables detected were 1-adamantylamine and bisphenol A diglycidyl ether from AH Plus and N-(p-tolyl) diethanolamine and caprolactone-2-(methacryloyloxy) ethyl ester from RealSeal SE. The largest UPLC/MS chromatogram peak areas of the leachables were detected within 72 h. Induction of cytotoxicity after exposure to AH Plus and RealSeal SE extracts coincided with leachant detected within the first 72 and 24 h, respectively. The clinical impact of the cytotoxicity due to resin-based endodontic sealers is unknown.
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Affiliation(s)
- Indre Graunaite
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Greta Lodiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Odeta Arandarcikaite
- Institute of Neurosciences, Laboratory of Biochemistry, Lithuanian University of Health Sciences
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technologies
| | - Vita Machiulskiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
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Nascimento J, Scelza MZ, Alves GG, Linhares A, Canabarro A, Granjeiro JM, De-Deus G. Cytocompatibility of a self-adhesive gutta-percha root-filling material. J Conserv Dent 2017; 20:152-156. [PMID: 29279616 PMCID: PMC5706313 DOI: 10.4103/0972-0707.218303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Context: A novel root-filling material based on the incorporation of ultrafine alkaline bioactive glass particles (bioactive gutta-percha, [BGP]) was developed to work without sealer. Aim: In the present study, the objective was to verify the in vitro biological response to this material by assessing its cytocompatibility. Materials and Methods: Prototypes of BGP were compared to conventional gutta-percha (GP), dense polystyrene beads as a negative control and fragments of latex as a positive control. Extracts of each material were prepared according to ISO 10993-5:2009, and human osteoblast-like cells in primary culture were exposed to all extracts for 24 h. Cell viability was assayed sequentially for three different parameters: mitochondrial activity, membrane integrity, and cell density. Statistical Analysis Used: Nonparametric analysis (using Kruskal–Wallis test combined with post hoc Dunn's test) was performed for comparison among groups, with significance established at 5%. Results: BGP reduced mitochondrial activity to 62% of control, but presented no toxicity on membrane integrity and proliferation assays. BGP effect on metabolism was dose-dependent and reduced to acceptable levels with dilution. Conclusion: The novel GP material presented slight dose-dependent effects on cell metabolism but did not affect cell survival.
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Affiliation(s)
- Joyce Nascimento
- Department of Cell and Molecular Biology, Fluminense Federal University, Niterói, Brazil
| | - Miriam Zaccaro Scelza
- Department of Cell and Molecular Biology, Fluminense Federal University, Niterói, Brazil
| | - Gutemberg Gomes Alves
- Department of Cell and Molecular Biology, Fluminense Federal University, Niterói, Brazil
| | - Adriana Linhares
- Department of Cell and Molecular Biology, Fluminense Federal University, Niterói, Brazil
| | - Antonio Canabarro
- Department of Periodontology, Veiga de Almeida University, Rio de Janeiro, Brazil
| | - Jose Mauro Granjeiro
- Bioengineering Division, National Institute of Metrology, Quality and Technology, Duque de Caxias, Brazil
| | - Gustavo De-Deus
- Department of Endodontics, Grande Rio University, Duque de Caxias, Brazil
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8
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Shin H, Ko H, Kim M. Cytotoxicity and biocompatibility of Zirconia (Y-TZP) posts with various dental cements. Restor Dent Endod 2016; 41:167-75. [PMID: 27508157 PMCID: PMC4977346 DOI: 10.5395/rde.2016.41.3.167] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/22/2016] [Indexed: 01/20/2023] Open
Abstract
Objectives Endodontically treated teeth with insufficient tooth structure are often restored with esthetic restorations. This study evaluated the cytotoxicity and biological effects of yttria partially stabilized zirconia (Y-TZP) blocks in combination with several dental cements. Materials and Methods Pairs of zirconia cylinders with medium alone or cemented with three types of dental cement including RelyX U200 (3M ESPE), FujiCEM 2 (GC), and Panavia F 2.0 (Kuraray) were incubated in medium for 14 days. The cytotoxicity of each supernatant was determined using 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays on L929 fibroblasts and MC3T3-E1 osteoblasts. The levels of interleukin-6 (IL-6) mRNA were evaluated by reverse transcription polymerase chain reaction (RT-PCR), and IL-6 protein was evaluated by enzyme-linked immunosorbent assays (ELISA). The data were analyzed using one-way ANOVA and Tukey post-hoc tests. A p < 0.05 was considered statistically significant. Results The MTT assays showed that MC3T3-E1 osteoblasts were more susceptible to dental cements than L929 fibroblasts. The resin based dental cements increased IL-6 expression in L929 cells, but reduced IL-6 expression in MC3T3-E1 cells. Conclusions Zirconia alone or blocks cemented with dental cement showed acceptable biocompatibilities. The results showed resin-modified glass-ionomer based cement less produced inflammatory cytokines than other self-adhesive resin-based cements. Furthermore, osteoblasts were more susceptible than fibroblasts to the biological effects of dental cement.
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Affiliation(s)
- Hyeongsoon Shin
- Department of Conservative Dentistry, Asan Medical Center, Ulsan University, Seoul, Korea
| | - Hyunjung Ko
- Department of Conservative Dentistry, Asan Medical Center, Ulsan University, Seoul, Korea
| | - Miri Kim
- Department of Conservative Dentistry, Asan Medical Center, Ulsan University, Seoul, Korea
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Portella FF, Collares FM, dos Santos LA, dos Santos BP, Camassola M, Leitune VCB, Samuel SMW. Glycerol salicylate-based containing α-tricalcium phosphate as a bioactive root canal sealer. J Biomed Mater Res B Appl Biomater 2015; 103:1663-9. [DOI: 10.1002/jbm.b.33326] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/05/2014] [Accepted: 10/26/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Fernando F. Portella
- Dental Materials Laboratory; School of Dentistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Fabrício M. Collares
- Dental Materials Laboratory; School of Dentistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Luís A. dos Santos
- Biomaterials Laboratory; Department of Materials; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Bruno P. dos Santos
- Laboratory of Stem Cells and Tissue Engineering; Universidade Luterana do Brasil; Canoas RS Brazil
| | - Melissa Camassola
- Laboratory of Stem Cells and Tissue Engineering; Universidade Luterana do Brasil; Canoas RS Brazil
| | - Vicente C. B. Leitune
- Dental Materials Laboratory; School of Dentistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Susana M. W. Samuel
- Dental Materials Laboratory; School of Dentistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
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Barros J, Costa-Rodrigues J, Lopes MA, Pina-Vaz I, Fernandes MH. Response of Human Osteoblastic and Osteoclastic Cells to AH Plus and Pulp Canal Sealer Containing Quaternary Ammonium Polyethylenimine Nanoparticles. J Endod 2014; 40:1149-55. [DOI: 10.1016/j.joen.2014.03.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/26/2014] [Accepted: 03/30/2014] [Indexed: 01/03/2023]
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Accardo C, Himel VT, Lallier TE. A Novel GuttaFlow Sealer Supports Cell Survival and Attachment. J Endod 2014; 40:231-4. [DOI: 10.1016/j.joen.2013.08.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 08/24/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
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Diomede F, Caputi S, Merciaro I, Frisone S, D'Arcangelo C, Piattelli A, Trubiani O. Pro-inflammatory cytokine release and cell growth inhibition in primary human oral cells after exposure to endodontic sealer. Int Endod J 2014; 47:864-72. [PMID: 24325570 DOI: 10.1111/iej.12230] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 12/05/2013] [Indexed: 11/30/2022]
Abstract
AIM To assay the toxicity of the single-methacrylate-based sealer urethane dimethacrylate (UDMA) (EndoRez) in terms of cell growth and pro-inflammatory cytokines release, in expanded ex vivo human dental pulp stem cells (hDPSCs), human periodontal ligament stem cells (hPDLSCs), human gingival fibroblasts (hGFs) and human osteoblasts (hOSTs). METHODOLOGY Dental pulp and periodontal ligament stem cells, osteoblasts and fibroblasts were derived from five young donors. After in vitro isolation, hDPSCs, hPDLSCs, hGFs and hOSTs were seeded to resin-based sealers for 24, 48, 72 h up to 1 week. The morphological features and the cell growth and the release of pro-inflammatory interleukin (IL)6, IL8, IL12 and tumour necrosis factor (TNF) α were analysed. Differences in cell growth and in interleukin secretion were analysed for statistical significance with two-way anova tests for multiple comparisons. RESULTS Exposure to endodontic sealer based on UDMA resulted in a 50% decrease in survival oral cells at 24 h of incubation. No evident morphological changes were present in cell cultures examined. After 48 h, 72 h and 1-week culture time, a progressive cell growth was evident. A significant up-regulation of IL6, IL8, IL12 and TNFα cytokines in cells in contact with the dental sealer compared to the control was observed. CONCLUSION In vitro, EndoRez interacted with primary human hDPSCs, hPDLSCs, hGFs and hOSTs causing damage to biological system evidenced through cell growth inhibition and up-regulation of IL6, IL8, IL12 and TNFα proinflammatory mediators.
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Affiliation(s)
- F Diomede
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio', Chieti-Pescara, Italy
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13
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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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Rodrigues C, Costa-Rodrigues J, Capelas JA, Fernandes MH. Behaviour of co-cultured human osteoclastic and osteoblastic cells exposed to endodontic sealers' extracts. Clin Oral Investig 2013; 18:479-88. [PMID: 23604699 DOI: 10.1007/s00784-013-0983-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Accepted: 04/08/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Bone tissue is constantly being moulded and shaped by the coordinated action of bone-resorbing osteoclasts and bone-synthesizing osteoblasts. This study addresses the long-term effects of endodontic sealers' extracts (AH Plus™, GuttaFlow™, Tubliseal™, Sealapex™ and RealSeal™) on co-cultures of human osteoclastic and osteoblastic cells. METHODS The sealers were mixed according to the manufacturer's instructions, freshly extracted with culture medium (1.3 cm(2)/ml; 24 h; 37 °C, 5% CO2/air) and diluted (1:20-1:2,500). Co-cultures of osteoclastic and osteoblastic cells, established from precursors present in human peripheral blood mononuclear cells and bone marrow cells, respectively, were exposed to the extracts for 21 days. Co-cultures were characterized for the osteoclastic and osteoblastic response. RESULTS The sealers caused a dose-dependent decrease on TRAP and ALP activities, respectively, an osteoclastic and an osteoblastic marker. The resorbing ability of the osteoclastic cells and the expression of osteoclastic and osteoblastic genes were also decreased; in addition, the extracts affected several intracellular signalling pathways. Inhibition was higher during the two first weeks, followed by adaptive cell responses. Osteoblastic response was more sensitive to the extracts' toxicity and showed lower adaptive ability. SIGNIFICANCE A correlation to the clinical situation cannot be predicted; however, the results suggest that the sealers' eluents might disrupt the highly regulated interaction between osteoblastic and osteoclastic cells, compromising the local bone metabolism. Also, the higher susceptibility of the osteoblastic response might be particularly relevant in the initial stages of the healing of periapical lesions, due to the significant role of the bone formation events.
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Affiliation(s)
- Cláudia Rodrigues
- Department of Endodontics, Faculty of Dental Medicine, University of Porto (FMDUP), Rua Dr. Manuel Pereira da Silva, 4200-393, Porto, Portugal
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Brackett MG, Lewis JB, Kious AR, Messer RLW, Lockwood PE, Brackett WW, Wataha JC. Cytotoxicity of endodontic sealers after one year of agingin vitro. J Biomed Mater Res B Appl Biomater 2012; 100:1729-35. [DOI: 10.1002/jbm.b.32739] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 04/19/2012] [Accepted: 04/24/2012] [Indexed: 11/07/2022]
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Silva EJNL, Accorsi-Mendonça T, Almeida JFA, Ferraz CCR, Gomes BPFA, Zaia AA. Evaluation of cytotoxicity and up-regulation of gelatinases in human fibroblast cells by four root canal sealers. Int Endod J 2011; 45:49-56. [DOI: 10.1111/j.1365-2591.2011.01946.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Scelza MZ, Linhares AB, da Silva LE, Granjeiro JM, Alves GG. A multiparametric assay to compare the cytotoxicity of endodontic sealers with primary human osteoblasts. Int Endod J 2011; 45:12-8. [DOI: 10.1111/j.1365-2591.2011.01941.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Willershausen I, Callaway A, Briseño B, Willershausen B. In vitro analysis of the cytotoxicity and the antimicrobial effect of four endodontic sealers. Head Face Med 2011; 7:15. [PMID: 21831282 PMCID: PMC3164599 DOI: 10.1186/1746-160x-7-15] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 08/10/2011] [Indexed: 12/04/2022] Open
Abstract
Introduction The aim of this study was to investigate in vitro the cytotoxicity and antibacterial properties of four different endodontic sealers using human periodontal ligament fibroblast cell proliferation and visual analysis of growth inhibition. Methods A silicone (GuttaFlow), silicate (EndoSequence BC), zinc oxide eugenol (Pulp Canal Sealer EWT) and epoxy resin (AH Plus Jet) based sealer were incubated with PDL fibroblasts (104 cells/ml, n = 6) up to 96 h. Cell proliferation (RFU) was determined by means of the Alamar Blue assay. Cell growth and morphology was visualized by means of fluorescent dyes. Possible antibacterial properties of the different sealers were visualized by means of SEM (Enterococcus faecalis; Parvimonas micra). Results Fibroblast proliferation depended on sealer and cultivation time. After 72 and 96 h GuttaFlow and EndoSequence BC showed relatively non-cytotoxic reactions, while Pulp Canal Sealer EWT and AH Plus Jet caused a significant decrease of cell proliferation (p < 0.001). Visualization of cell growth and morphology with various fluorescent dyes supplemented the results. No antibacterial effect of EndoSequence BC to P. micra was found, whereas GuttaFlow showed a weak, Pulp Canal Sealer EWT and AH Plus Jet extensive growth inhibition. Also, no antibacterial effect of GuttaFlow, EndoSequence BC or AH Plus Jet to E. faecalis could be detected. Conclusions These in vitro findings reveal that GuttaFlow and EndoSequence BC can be considered as biocompatible sealing materials. However, prior to their clinical employment, studies regarding their sealing properties also need to be considered.
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Affiliation(s)
- Ines Willershausen
- Department of Operative Dentistry, University Medical Centre of the Johannes Gutenberg University Mainz, Germany
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Brackett MG, Lewis JB, Messer RLW, Lei L, Lockwood PE, Wataha JC. Dysregulation of monocytic cytokine secretion by endodontic sealers. J Biomed Mater Res B Appl Biomater 2011; 97:49-57. [DOI: 10.1002/jbm.b.31785] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 09/22/2010] [Accepted: 10/13/2010] [Indexed: 11/11/2022]
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