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Christie B, Musri N, Djustiana N, Takarini V, Tuygunov N, Zakaria M, Cahyanto A. Advances and challenges in regenerative dentistry: A systematic review of calcium phosphate and silicate-based materials on human dental pulp stem cells. Mater Today Bio 2023; 23:100815. [PMID: 37779917 PMCID: PMC10539671 DOI: 10.1016/j.mtbio.2023.100815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/11/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023] Open
Abstract
Conventional dentistry faces limitations in preserving tooth health due to the finite lifespan of restorative materials. Regenerative dentistry, utilizing stem cells and bioactive materials, offers a promising approach for regenerating dental tissues. Human dental pulp stem cells (hDPSCs) and bioactive materials like calcium phosphate (CaP) and silicate-based materials have shown potential for dental tissue regeneration. This systematic review aims to investigate the effects of CaP and silicate-based materials on hDPSCs through in vitro studies published since 2015. Following the PRISMA guidelines, a comprehensive search strategy was implemented in PubMed MedLine, Cochrane, and ScienceDirect databases. Eligibility criteria were established using the PICOS scheme. Data extraction and risk of bias (RoB) assessment were conducted, with the included studies assessed for bias using the Office of Health and Translation (OHAT) RoB tool. The research has been registered at OSF Registries. Ten in vitro studies met the eligibility criteria out of 1088 initial studies. Methodological heterogeneity and the use of self-synthesized biomaterials with limited generalizability were observed in the included study. The findings highlight the positive effect of CaP and silicate-based materials on hDPSCs viability, adhesion, migration, proliferation, and differentiation. While the overall RoB assessment indicated satisfactory credibility of the reviewed studies, the limited number of studies and methodological heterogeneity pose challenges for quantitative research. In conclusion, this systematic review provides valuable insights into the effects of CaP and silicate-based materials on hDPSCs. Further research is awaited to enhance our understanding and optimize regenerative dental treatments using bioactive materials and hDPSCs, which promise to improve patient outcomes.
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Affiliation(s)
- B. Christie
- Faculty of Dentistry, Universitas Padjadjaran, Jalan Sekeloa Selatan 1, Bandung, 40134, Indonesia
| | - N. Musri
- Faculty of Dentistry, Universitas Padjadjaran, Jalan Sekeloa Selatan 1, Bandung, 40134, Indonesia
| | - N. Djustiana
- Department of Dental Materials Science and Technology, Faculty of Dentistry, Universitas Padjadjaran, Jalan Raya Bandung Sumedang Km 21, Jatinangor, 45363, Indonesia
- Oral Biomaterials Study Center, Faculty of Dentistry, Universitas Padjadjaran, Jalan Sekeloa Selatan 1, Bandung, 40134, Indonesia
| | - V. Takarini
- Department of Dental Materials Science and Technology, Faculty of Dentistry, Universitas Padjadjaran, Jalan Raya Bandung Sumedang Km 21, Jatinangor, 45363, Indonesia
- Oral Biomaterials Study Center, Faculty of Dentistry, Universitas Padjadjaran, Jalan Sekeloa Selatan 1, Bandung, 40134, Indonesia
| | - N. Tuygunov
- Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - M.N. Zakaria
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - A. Cahyanto
- Department of Dental Materials Science and Technology, Faculty of Dentistry, Universitas Padjadjaran, Jalan Raya Bandung Sumedang Km 21, Jatinangor, 45363, Indonesia
- Oral Biomaterials Study Center, Faculty of Dentistry, Universitas Padjadjaran, Jalan Sekeloa Selatan 1, Bandung, 40134, Indonesia
- Functional Nano Powder University Center of Excellence (FiNder U CoE), Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km 21, Jatinangor, 45363, Indonesia
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
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Rezende TMB, Ribeiro Sobrinho AP, Vieira LQ, Sousa MGDC, Kawai T. Mineral trioxide aggregate (MTA) inhibits osteoclastogenesis and osteoclast activation through calcium and aluminum activities. Clin Oral Investig 2020; 25:1805-1814. [PMID: 32789653 DOI: 10.1007/s00784-020-03483-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/29/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To evaluate the effect(s) of mineral trioxide aggregate (MTA) on in vitro RANKL-mediated osteoclast-dependent bone resorption events and the influence of Ca2+ and Al3+ on the osteoclastogenesis inhibition by MTA. MATERIALS AND METHODS Two types of osteoclast precursors, RAW 264.7 (RAW) cell line or bone marrow cells (obtained from BALB/c mice and stimulated with recombinant (r) macrophage colony stimulation factor (M-CSF), were stimulated with or without recombinant (r) activator of nuclear kappa B ligand (RANKL), in the presence or absence of MTA for 6 to 8 days. White Angelus MTA and Bios MTA (Angelus, Londrina, Paraná, Brazil) were prepared and inserted into capillary tubes (direct contact surface = 0.50 mm2 and 0.01 mm2). Influence of MTA on these types of osteoclast precursors was measured by the number of differentiated tartrate-resistant acid phosphatase (TRAP)-positive multinuclear cells (RAW and bone marrow cells), TRAP enzyme activity (RAW cells), cathepsin K gene expression (RAW cells), and resorptive pit formation (RAW cells) by mature osteoclasts. Besides, RAW cells were also stimulated with Ca2+ and Al3+ to evaluate the influence of these ions on MTA anti-osteoclastogenic potential. RESULTS In bone marrow and RAW cells, the number of TRAP-positive mature osteoclast cells induced by rRANKL was significantly inhibited by the presence of MTA compared with control rRANKL stimulation without MTA (p < 0.05), along with the reduction of TRAP enzyme activity (p < 0.05) and the low expression of cathepsin K gene (p < 0.05). In contrast, to control mature osteoclasts, the resorption area on dentin was significantly decreased for mature osteoclasts incubated with MTA (p < 0.05). rRANKL-stimulated RAW cells treated with Ca2+ and Al3+ decreased the number of osteoclasts cells. Besides, the aluminum oxide was the dominant suppressor of the osteoclastogenesis process. CONCLUSIONS MTA significantly suppressed RANKL-mediated osteoclastogenesis and osteoclast activity and, therefore, appears able to suppress bone resorption events in periapical lesions. This process might be related to Ca2+ and Al3+ activities. CLINICAL RELEVANCE MTA is an important worldwidely acknowleged biomaterial. The knowledge about its molecular activities on osteoclasts might contribute to improving the understanding of its clinical efficacy.
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Affiliation(s)
- Taia Maria Berto Rezende
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil. .,Curso de Odontologia, Universidade Católica de Brasília, Brasília, DF, Brazil. .,Programa de Pós-graduação em Ciências da Saúde, Universidade de Brasília, Brasília, DF, Brazil.
| | - Antônio Paulino Ribeiro Sobrinho
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Leda Quercia Vieira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Toshihisa Kawai
- Department of Oral Science and Translational Research, College of Dental Medicine, NOVA Southeastern University, Fort Lauderdale, FL, USA.,Cell Therapy Institute, Center for Collaborative Research, NOVA Southeastern University, Fort Lauderdale, FL, USA
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Espaladori MC, Maciel KF, Brito LCND, Kawai T, Vieira LQ, Ribeiro Sobrinho AP. Experimental furcal perforation treated with mineral trioxide aggregate plus selenium: immune response. Braz Oral Res 2018; 32:e103. [PMID: 30328900 DOI: 10.1590/1807-3107bor-2018.vol32.0103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/01/2018] [Indexed: 11/22/2022] Open
Abstract
The aim of this study is to evaluate the expression of cytokines in response to mineral trioxide aggregate (MTA) plus selenium in germ-free mice with experimental furcal perforation. The first left maxillary molar was opened, and the furcal area was perforated and treated with post-MTA-Se (experimental group). The same surgical intervention was performed for the maxillary right first molar, which was treated with MTA (control group). Fifteen mice were sacrificed 7, 14, and 21 days after furcal perforation, and periapical tissue samples were collected. The mRNA expression levels of the cytokines TGF-β, TNF-α, IFN-γ, HPRT, IL-10, IL-4, RANK, RANKL, IL-1, and IL-17 were assessed by using real-time polymerase chain reaction. In the experimental group, at 21-days post-MTA-Se sealing, the mRNA levels of TNF-α and IL-10 were upregulated compared with those in the control group (p < 0.05). Futher assessment revealed basal mRNA expression levels of IL-1α, IFN-γ, RANK, RANKL, IL-17A, IL-4, and TGF-β, over long experimental times, in both the experimental and control groups (p > 0.05). In conclusion, MTA+Se sealing favoured increased expression of IL-10 and TNF-α at later time points (day 21).
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Affiliation(s)
- Marcela Carvalho Espaladori
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
| | - Kamilla Faria Maciel
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
| | | | - Toshihisa Kawai
- The Forsyth Institute, Department of Immunology, Boston, MA, USA
| | - Leda Quércia Vieira
- Universidade Federal de Minas Gerais - UFMG, Institute of Biological Sciences, Departament of Biochemistry and Immunology, Belo Horizonte, MG, Brazil
| | - Antônio Paulino Ribeiro Sobrinho
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
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Oliveira RR, Tavares WLF, Reis AL, Silva VA, Vieira LQ, Ribeiro Sobrinho AP. Cytokine expression in response to root repair agents. Int Endod J 2018; 51:1253-1260. [PMID: 29730894 DOI: 10.1111/iej.12944] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 04/26/2018] [Indexed: 12/31/2022]
Abstract
AIM To evaluate the expression of TNF-α, IL-6, IFN-γ, TGF-β, IL-4, IL-10, RANKL, RANK and OPG on mouse calvarial bone treated with MTA, Geristore® and Emdogain® . METHODOLOGY Bone wounds were made on the heads of C57BL/6 mice, breaking the periosteum and the cortical surface of the calvaria. Each repair agent was inserted into sectioned Eppendorf microtubes and placed on the bone wound, and soft tissues were sutured. At 14 and 21 days, animals were sacrificed and the treated region was dissected. The calvaria bone was removed, and RNA was extracted. mRNA expression of the aforementioned cytokines was assessed using real-time PCR. Data were analysed by nonparametric methods, including the Mann-Whitney and Kruskal-Wallis tests (P < 0.05). RESULTS Following treatment with Emdogain® and MTA, mRNA expression of RANKL, RANK and OPG increased significantly (P < 0.05) between days 14 to 21. Geristore® did not alter the basal expression of these mediators during the same period of evaluation. Whilst treatment with Emdogain® did cause a significant increase in TNF-α mRNA expression between days 14 and 21 (P < 0.05), treatment with MTA did not alter the basal expression of this cytokine at either experimental time point. However, TNF-α mRNA expression was down-regulated significantly at day 21 (P < 0.05) when Geristore® was applied. A significant increase in the mRNA expression of IL-6, TGF-β, IL-10, IL-4 and IFN-γ was observed with Emdogain® and MTA treatment between days 14 to 21, whereas Geristore® reduced significantly the expression of IL-6, TGF-β and IL-4 (P < 0.05). CONCLUSION The clinical indication of these repair agents depends on the root resorption diagnosis. Whilst MTA and Emdogain® induce a pro- and anti-inflammatory response early and late, respectively, Geristore® was not associated with an inflammatory reaction when compared with both repair agents.
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Affiliation(s)
- R R Oliveira
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - W L F Tavares
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A L Reis
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - V A Silva
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - L Q Vieira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A P Ribeiro Sobrinho
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Lara VDPL, Cardoso FP, Brito LCN, Vieira LQ, Ribeiro Sobrinho AP, Rezende TMB. Experimental Furcal Perforation Treated with MTA: Analysis of the Cytokine Expression. Braz Dent J 2015; 26:337-41. [DOI: 10.1590/0103-6440201300006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 06/23/2015] [Indexed: 01/18/2023] Open
Abstract
<p>The aim of this study was to evaluate mineral trioxide aggregate (MTA)-induced cytokine expression in mice after experimental furcal perforation. BALB/c mice (n=5) were subjected to induced furcal drilling of the maxillary first molar followed by MTA sealing in the left side (experimental group) and paraffin sealing in the right side (control group). Animals were euthanized at 7, 14 and 21 days after sealing the perforations. The expression levels of the IFN-γ, TNF-α, IL-10, IL-4, TGF-β and RANKL genes were investigated by real time polymerase chain reaction (PCR) in the teeth and surrounding tissues. In the experimental groups, after the 7th day, there was a down-regulation of the mRNA levels of TNF-α and IL-4 compared to the 14th day (p<0.05). In these groups, the mRNA levels of RANKL, IFN-γ and TNF-α were statistically higher after 14 days compared to 21 days post-MTA sealing (p<0.05). The level of IL-10 mRNA was increased at the 21st day (p<0.05). The mRNA expression of TGF-β did not exhibit any statistically relevant results. There was a statistical down-regulation of IL-4 gene expressions when control and experimental groups were compared at days 7 and 21. In conclusion, MTA sealing favored the expression of pro-inflammatory cytokines in the intermediate phase of the immuno-inflammatory response (14th day). The reduction of these cytokines in later phase of the response was probably due to immunoregulation by IL-10.</p>
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Affiliation(s)
| | | | | | | | | | - Taia Maria Berto Rezende
- Universidade Católica de Brasília, Brazil; Universidade Católica de Brasília, Brazil; Universidade de Brasília, Brazil
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Karygianni L, Proksch S, Schneider S, Vach K, Hellwig E, Steinberg T, Schulz SD, Tchorz JP, Altenburger MJ. The effects of various mixing solutions on the biocompatibility of mineral trioxide aggregate. Int Endod J 2015; 49:561-73. [DOI: 10.1111/iej.12483] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/10/2015] [Indexed: 12/19/2022]
Affiliation(s)
- L. Karygianni
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - S. Proksch
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - S. Schneider
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - K. Vach
- Institute for Medical Biometry and Statistics; Center for Medical Biometry and Medical Informatics; University of Freiburg; Freiburg Germany
| | - E. Hellwig
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - T. Steinberg
- Department of Oral Biotechnology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - S. D. Schulz
- Department of Oral Biotechnology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - J. P. Tchorz
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
| | - M. J. Altenburger
- Department of Operative Dentistry and Periodontology; Center for Dental Medicine; University of Freiburg; Freiburg Germany
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Ghorbanzadeh A, Ghorbanzadeh A. Maturogenesis of Two Maxillary Central Incisors: A Case Report with 10 Years of Follow Up. JOURNAL OF DENTISTRY (TEHRAN, IRAN) 2015; 12:306-15. [PMID: 26622286 PMCID: PMC4662769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This case report describes the treatment of two immature maxillary central incisors in a 7-year-old female patient. She suffered complicated crown fracture because of trauma, and the root formation was incomplete. White mineral trioxide aggregate (MTA) was selected as the pulp-capping material after cervical pulpotomy to preserve the pulp tissue vitality and achieve maturogenesis. Follow-up evaluations showed successful treatment in terms of preservation of pulp vitality and demonstrated marked continuous physiological root development. During 10 years of follow-up, both teeth were clinically asymptomatic, and radiographic evaluations showed apparent root regeneration with apical root-end closure without pulp or periapical pathosis.
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Affiliation(s)
- Abdollah Ghorbanzadeh
- Assistant Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Atiyeh Ghorbanzadeh
- Dental Student, School of Dentistry, Semmelwies University, Budapest, Hungary,Corresponding author: A. Ghorbanzadeh, Dental Student, School of Dentistry, Semmelwies University, Budapest, Hungary,
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Hung CJ, Kao CT, Shie MY, Huang TH. Comparison of host inflammatory responses between calcium-silicate base material and IRM. J Dent Sci 2014. [DOI: 10.1016/j.jds.2013.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Braga JM, Oliveira RR, Martins RC, Ribeiro Sobrinho AP. The effects of a mineral trioxide aggregate-based sealer on the production of reactive oxygen species, nitrogen species and cytokines by two macrophage subtypes. Int Endod J 2014; 47:909-19. [DOI: 10.1111/iej.12234] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 12/16/2013] [Indexed: 01/29/2023]
Affiliation(s)
- J. M. Braga
- Departamento de Odontologia Restauradora; Faculdade de Odontologia; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - R. R. Oliveira
- Departamento de Odontologia Restauradora; Faculdade de Odontologia; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - R. C. Martins
- Departamento de Odontologia Social e Preventiva; Faculdade de Odontologia; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - A. P. Ribeiro Sobrinho
- Departamento de Odontologia Restauradora; Faculdade de Odontologia; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
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Pereda GO, Fudinaga ACC, Beltrán HS, Peroni LA, Stach-Machado D. Inflammatory and bone regulators expression in murine macrophages under exposure of commercial and experimental mineral trioxide aggregate. Aust Dent J 2012; 57:284-91. [DOI: 10.1111/j.1834-7819.2012.01701.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Silva MJB, Kajiya M, AlShwaimi E, Sasaki H, Hong J, Ok P, Rezende TMB, Pagonis TC, White RR, Paster BJ, Stashenko P, Kawai T. Bacteria-reactive immune response may induce RANKL-expressing T cells in the mouse periapical bone loss lesion. J Endod 2012; 38:346-50. [PMID: 22341072 DOI: 10.1016/j.joen.2011.12.029] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 12/21/2011] [Accepted: 12/22/2011] [Indexed: 10/14/2022]
Abstract
INTRODUCTION The present study investigated whether bacteria infecting the root canal can activate any infiltrating T cells to produce receptor activator of nuclear factor kappa B (NF-κB) ligand (RANKL). METHODS Using a mouse model of periapical lesion induced by artificial dental pulp exposure, the presence of RANKL-positive T cells and osteoclasts in the periapical lesion was examined by an immunohistochemical approach. The bacteria colonizing the exposed root canal were identified by 16S ribosomal RNA (rRNA) sequence analysis. The isolated endodontic bacteria were further immunized to normal mice, and soluble activator of NF-κB ligand (sRANKL) production by the T cells isolated from the immunized mice was evaluated by ex vivo culture system. RESULTS RANKL-positive T cells along with TRAP+ osteoclasts were identified in periapical bone resorption lesions. The gram-negative bacterium Pasteurella pnumotropica, which was most frequently detected from the root canal of exposed pulp, showed remarkably elevated serum immunoglobulin G (IgG)-antibody response in pulp-exposed mice compared with control nontreated mice. Immunization of mice with P. pneumotropica induced not only serum IgG-antibody but also primed bacteria-reactive T cells that produced sRANKL in response to ex vivo exposure to P. pneumotropica. CONCLUSIONS T cells infiltrating the periapical region express RANKL, and the endodontic bacteria colonizing the root canal appear to induce RANKL expression from bacteria-reactive T cells, suggesting the possible pathogenic engagement of the immune response to endodontic bacteria in the context of developing bone resorptive periapical lesions.
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Affiliation(s)
- Marcelo J B Silva
- Department of Immunology, The Forsyth Institute, Cambridge, Massachusetts, USA
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Chen CC, Shie MY, Ding SJ. Human dental pulp cell responses to new calcium silicate-based endodontic materials. Int Endod J 2011; 44:836-42. [DOI: 10.1111/j.1365-2591.2011.01890.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Darvell BW, Wu RCT. "MTA"-an Hydraulic Silicate Cement: review update and setting reaction. Dent Mater 2011; 27:407-22. [PMID: 21353694 DOI: 10.1016/j.dental.2011.02.001] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2010] [Revised: 02/03/2011] [Accepted: 02/03/2011] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To review the current status and understanding of Portland cement-like endodontic materials commonly referred to by the trade designation "MTA" (alias "Mineral Trioxide Aggregate"), and to present an outline setting reaction scheme, hitherto unattempted. METHOD The literature was searched using on-line tools, overlapping an earlier substantial review to pick up any omissions, including that in respect of ordinary Portland cement (OPC), with which MTA shares much. The search was conducted for the period January 2005 to December 2009 using 'MTA', 'GMTA', 'WMTA', and 'mineral AND trioxide AND aggregate' as keywords, with various on-line search engines including ScienceDirect (http://www.sciencedirect.com), SAGE Journals Online (http://online.sagepub.com), Wiley Online Library (http://onlinelibrary.wiley.com), SciELO Scientific electronic library online (http://www.scielo.br/scielo.php), JSTOR (http://www.jstor.org), and Scopus (http://www.scopus.com). References of articles found were cross-checked where appropriate for missed publications. Manufacturers' and related websites were searched with Google Search (http://www.google.com.hk). RESULTS A generic name for this class of materials, Hydraulic Silicate Cement (HSC), is proposed, and an outline reaction scheme has been deduced. HSC has distinct advantages apparent, including sealing, sterilizing, mineralizing, dentinogenic and osteogenic capacities, which research continues to demonstrate. However, ad hoc modifications have little supporting justification. SIGNIFICANCE While HSC has a definite place in dentistry, with few of the drawbacks associated with other materials, some improvements in handling and other properties are highly desirable, as are studies of the mechanisms of the several beneficial physiological effects. Reference to the extensive, but complex, literature on OPC may provide the necessary insight.
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Affiliation(s)
- B W Darvell
- Bioclinical Sciences, Faculty of Dentistry, Kuwait University, Health Sciences Centre, PO Box 24923, Safat 13110, Kuwait.
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Shahi S, Rahimi S, Yavari HR, Mokhtari H, Roshangar L, Abasi MM, Sattari S, Abdolrahimi M. Effect of mineral trioxide aggregates and Portland cements on inflammatory cells. J Endod 2010; 36:899-903. [PMID: 20416442 DOI: 10.1016/j.joen.2010.01.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2009] [Revised: 01/02/2010] [Accepted: 01/03/2010] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Recently, some studies have compared mineral trioxide aggregate (MTA) with Portland cements, concluding that the principal ingredients of Portland cements are similar to those of MTA. The purpose of the present study was to evaluate the effect of gray MTA, white MTA, and gray and white Portland cements on inflammatory cells in rats. METHODS Fresh mixtures mixed with distilled water were placed in polyethylene tubes, which were implanted in the dorsal subcutaneous connective tissue of 60 Sprague-Dawley rats along with empty tubes as controls. Tissue specimens were collected after the rats were sacrificed after 7, 15, 30, 60, and 90 days. The specimens were fixed, stained, processed, and histologically evaluated under a light microscope. Inflammatory reactions were classified as grade 0: without inflammatory cells, grade I: sporadic infiltration of inflammatory cells, grade II: moderate infiltration (<25 cells), grade III: dense and severe infiltration (25-125 cells), and grade IV: very dense and severe infiltration (>125 cells). Data were analyzed with the nonparametric (two factor) analysis of variance and Kruskal-Wallis H-test. RESULTS All the groups showed grade III inflammation after 7 and 15 days; there was a decrease in the inflammatory process after 30, 60, and 90 days. After 90 days, gray MTA, white MTA, and control groups had grade 0 inflammatory process, but gray Portland cement and white Portland cement groups showed grade 0 to grade I inflammatory processes. CONCLUSION MTAs were more biocompatible; however, more studies are required.
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Affiliation(s)
- Shahriar Shahi
- Department of Endodontics, Tabriz University of Medical Sciences, Tabriz, Iran
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