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Bernardini C, Zamparini F, Prati C, Salaroli R, Spinelli A, Zannoni A, Forni M, Gandolfi MG. Osteoinductive and regenerative potential of premixed calcium-silicate bioceramic sealers on vascular wall mesenchymal stem cells. Int Endod J 2024; 57:1264-1278. [PMID: 38943551 DOI: 10.1111/iej.14098] [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: 07/27/2023] [Revised: 04/04/2024] [Accepted: 05/13/2024] [Indexed: 07/01/2024]
Abstract
AIM The osteogenic potential of new premixed calcium-silicate-containing bioceramic sealers (Ca-Si sealers) was tested with porcine vascular wall-mesenchymal stem cells (pVW-MSCs). METHODOLOGY Two Ca-Si-containing sealers: Ceraseal (MetaBiomed, Cheong-si, South Korea) and AH Plus Bioceramic (Maruchi, Wonju-si, South Korea), and an epoxy resin sealer (AH Plus; Dentsply, Konstanz, Germany) as a control, were prepared according to the manufacturers' indications. All samples were allowed to set for 100% of their setting time in a sterile humid cabinet at 37°C and 95% relative humidity. pVW-MSC seeding efficiency and osteogenic differentiation were analysed as marker of gene/protein expression for up to 12 days. Mineralization assay and immunofluorescence staining were performed and evaluated over a period of 21 days. Statistical analyses were conducted using one-way analysis of variance (p < .05). Additional samples were prepared and stored under the same conditions and inspected using an environmental scanning electron microscope equipped with an energy dispersive X-ray spectroscopy system. RESULTS Significantly higher cell seeding efficiency (p < .05) was observed for both Ca-Si sealers from day 8. pVW-MSCs showed a significant shift towards the osteogenic lineage only when seeded in contact with Ca-Si sealers. Gene expression of osteopontin was upregulated significantly. Collagen I and osteocalcin were clearly expressed by cells in contact with Ca-Si sealers. Mineralization granules were observed in Alizarin red assays and confocal laser scanning microscopy analysis of both Ca-Si sealers. No gene expression or granule mineralization were observed on the epoxy resin sealer. CONCLUSIONS Premixed Ca-Si sealers displayed a higher potential for osteogenic activity on pVW-MSCs. Epoxy resin sealer was unable to induce any osteogenic activity. The properties of both Ca-Si sealers suggest their potential as osteoinductive platforms for vascular MSCs in periapical bone.
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Affiliation(s)
- Chiara Bernardini
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Fausto Zamparini
- Endodontic Clinical Section, Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
- Laboratory of Green Biomaterials and Oral Pathology, Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Carlo Prati
- Endodontic Clinical Section, Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Roberta Salaroli
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Andrea Spinelli
- Endodontic Clinical Section, Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Augusta Zannoni
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Monica Forni
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research (CIRI-SDV), Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Maria Giovanna Gandolfi
- Laboratory of Green Biomaterials and Oral Pathology, Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Moreno Florez AI, Malagon S, Ocampo S, Leal-Marin S, Gil González JH, Diaz-Cano A, Lopera A, Paucar C, Ossa A, Glasmacher B, Peláez-Vargas A, Garcia C. Antibacterial and osteoinductive properties of wollastonite scaffolds impregnated with propolis produced by additive manufacturing. Heliyon 2024; 10:e23955. [PMID: 38205336 PMCID: PMC10777370 DOI: 10.1016/j.heliyon.2023.e23955] [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: 08/18/2023] [Revised: 11/30/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Biocompatible ceramic scaffolds offer a promising approach to address the challenges in bone reconstruction. Wollastonite, well-known for its exceptional biocompatibility, has attracted significant attention in orthopedics and craniofacial fields. However, the antimicrobial properties of wollastonite have contradictory findings, necessitating further research to enhance its antibacterial characteristics. This study aimed to explore a new approach to improve in vitro biological response in terms of antimicrobial activity and cell proliferation by taking advantage of additive manufacturing for the development of scaffolds with complex geometries by 3D printing using propolis-modified wollastonite. The scaffolds were designed with a TPMS (Triply Periodic Minimal Surface) gyroid geometric shape and 3D printed prior to impregnation with propolis extract. The paste formulation was characterized by rheometric measurements, and the presence of propolis was confirmed by FTIR spectroscopy. The scaffolds were comprehensively assessed for their mechanical strength. The biological characterization involved evaluating the antimicrobial effects against Staphylococcus aureus and Staphylococcus epidermidis, employing Minimum Inhibitory Concentration (MIC), Zone of Inhibition (ZOI), and biofilm formation assays. Additionally, SaOs-2 cultures were used to study cell proliferation (Alamar blue assay), and potential osteogenic was tested (von Kossa, Alizarin Red, and ALP stainings) at different time points. Propolis impregnation did not compromise the mechanical properties of the scaffolds, which exhibited values comparable to human trabecular bone. Propolis incorporation conferred antibacterial activity against both Staphylococcus aureus and Staphylococcus epidermidis. The implementation of TPMS gyroid geometry in the scaffold design demonstrated favorable cell proliferation with increased metabolic activity and osteogenic potential after 21 days of cell cultures.
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Affiliation(s)
- Ana Isabel Moreno Florez
- Grupo de Cerámicos y Vítreos, Universidad Nacional de Colombia sede Medellín, Medellín 050034, Colombia
| | - Sarita Malagon
- Faculty of Dentistry, Universidad Cooperativa de Colombia sede Medellín, Medellín 055422, Colombia
| | - Sebastian Ocampo
- Grupo de Cerámicos y Vítreos, Universidad Nacional de Colombia sede Medellín, Medellín 050034, Colombia
| | - Sara Leal-Marin
- Institute for Multiphase Processes (IMP), Leibniz University Hannover, Garbsen, Germany, Lower Saxony Center for Biomedical Engineering, Implant Research and Development, Hannover, Germany
| | - Jesús Humberto Gil González
- Departamento de ingeniería agrícola y alimentos. Facultad de ciencias agrarias. Universidad Nacional de Colombia sede Medellín, Colombia
| | - Andres Diaz-Cano
- Grupo de Cerámicos y Vítreos, Universidad Nacional de Colombia sede Medellín, Medellín 050034, Colombia
| | - Alex Lopera
- Grupo de Nanoestructuras y Física Aplicada (NANOUPAR), Universidad Nacional de Colombia, La Paz 202017, Colombia
| | - Carlos Paucar
- Grupo de Cerámicos y Vítreos, Universidad Nacional de Colombia sede Medellín, Medellín 050034, Colombia
| | - Alex Ossa
- School of Applied Sciences and Engineering, Universidad Eafit, Medellín 050022, Colombia
| | - Birgit Glasmacher
- Institute for Multiphase Processes (IMP), Leibniz University Hannover, Garbsen, Germany, Lower Saxony Center for Biomedical Engineering, Implant Research and Development, Hannover, Germany
| | - Alejandro Peláez-Vargas
- Faculty of Dentistry, Universidad Cooperativa de Colombia sede Medellín, Medellín 055422, Colombia
| | - Claudia Garcia
- Grupo de Cerámicos y Vítreos, Universidad Nacional de Colombia sede Medellín, Medellín 050034, Colombia
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Ezawa N, Akashi Y, Nakajima K, Kokubun K, Furusawa M, Matsuzaka K. The Effects of Tricalcium-Silicate-Nanoparticle-Containing Cement: In Vitro and In Vivo Studies. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4451. [PMID: 37374634 DOI: 10.3390/ma16124451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
A tricalcium-silicate-nanoparticle-containing cement (Biodentine) was developed to overcome the disadvantages of existing mineral trioxide aggregate (MTA) dental materials. This study aimed at evaluating the effects of Biodentine on the osteogenic differentiation of human periodontal ligament fibroblasts (HPLFs) in vitro and the healing of furcal perforations created experimentally in rat molars in vivo, in comparison to MTA. The in vitro studies performed the following assays: pH measurement using a pH meter, the release of calcium ions using a calcium assay kit, cell attachment and morphology using SEM, cell proliferation using a coulter counter, marker expression using quantitative reverse transcription polymerase chain reaction (qRT-PCR) and cell mineralized deposit formation using Alizarin Red S (ARS) staining. In the in vivo studies, MTA and Biodentine were used to fill the rat molar perforations. Rat molars were processed at 7, 14 and 28 days for analysis of inflammatory processes using hematoxylin and eosin (HE) staining, immunohistochemical staining of Runx2 and tartrate-resistant acid phosphate (TRAP) staining. The results demonstrate that the nanoparticle size distribution of Biodentine is critical for osteogenic potential at an earlier stage compared to MTA. Further studies are required to elucidate the mechanism of action of Biodentine in osteogenic differentiation.
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Affiliation(s)
- Naho Ezawa
- Department of Endodontics, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Yoshihiko Akashi
- Department of Pathology, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Kei Nakajima
- Department of Pathology, Tokyo Dental College, Tokyo 101-0061, Japan
| | | | - Masahiro Furusawa
- Department of Endodontics, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Kenichi Matsuzaka
- Department of Pathology, Tokyo Dental College, Tokyo 101-0061, Japan
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Guerreiro JCM, Ochoa-Rodrígez VM, Rodrigues EM, Chavez-Andrade GM, Tanomaru-Filho M, Guerreiro-Tanomaru JM, Faria G. Antibacterial activity, cytocompatibility and effect of Bio-C Temp bioceramic intracanal medicament on osteoblast biology. Int Endod J 2021; 54:1155-1165. [PMID: 33638900 DOI: 10.1111/iej.13502] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/13/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
Abstract
AIM To analyse the antimicrobial and biological properties of a new bioceramic intracanal medicament (Bio-C Temp), and to compare it with two calcium hydroxide-based intracanal medicaments (Calen® and UltraCal® XS). METHODOLOGY The direct contact and the crystal violet tests were performed to assess the antimicrobial activity of intracanal medicaments against Enterococcus faecalis. The cytocompatibility and the effect of the medication on the biology of the human osteoblast-like cell line (Saos-2) were evaluated with methylthiazole tetrazolium (MTT), neutral red, alkaline phosphatase activity and mineralization (alizarin red) assays. The data were analysed using one-way anova and Tukey's tests, two-way anova and Bonferroni's tests, or Kruskal-Wallis and Dunn's tests (α = 0.05). RESULTS Bio-C Temp had significantly less antibacterial activity and biofilm biomass reduction than the other intracanal medicaments (P < 0.05). There was no difference in the viability of Saos-2 exposed to the various intracanal medicaments, except regarding the 1 : 2 dilution, when the Bio-C Temp group had significantly lower cell viability than the UltraCal® XS and Calen® groups (P < 0.05). Bio-C Temp induced significantly greater ALP activity than the other intracanal medicaments (P < 0.05) at day 1. Calen® induced significantly greater deposition of mineralized nodules than the other intracanal medicaments (P < 0.05), and no difference was observed between Bio-C Temp and UltraCal® XS (P > 0.05). CONCLUSIONS Bio-C Temp had similar cytocompatibility at higher dilutions, and higher or similar induction of ALP activity and deposition of mineralized nodules in comparison with Calen® and UltraCal® XS. However, it had significantly less antibacterial and antibiofilm activity than Calen® and UltraCal® XS.
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Affiliation(s)
- J C M Guerreiro
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil.,Araraquara School of Pharmaceutical Sciences, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - V M Ochoa-Rodrígez
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - E M Rodrigues
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - G M Chavez-Andrade
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - M Tanomaru-Filho
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - J M Guerreiro-Tanomaru
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - G Faria
- Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
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Development and properties of endodontic resin sealers with natural oils. J Dent 2020; 104:103538. [PMID: 33248212 DOI: 10.1016/j.jdent.2020.103538] [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: 08/20/2020] [Revised: 11/13/2020] [Accepted: 11/23/2020] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES To synthesize and evaluate the physicochemical, antimicrobial, and cytocompatibility properties of experimental resin-based endodontic sealers containing butia or copaiba natural oils. METHODS Experimental groups contained butia (Butia capitata) at 0.5 % (B0.5), 1 % (B1), 2 % (B2), and copaiba (Copaifera spp.) at 0.5 % (C0.5), 1 % (C1), and 2 % (C2). The control group contained no added oils (experimental material, EM) and the commercial group was a methacrylate-based resin material (RealSeal™, SybronEndo Corporation, Orange, CA, USA). Degree of conversion, film thickness, setting time, flow, water sorption and solubility, and radiopacity were measured. Meanwhile, antimicrobial (modified direct contact test) and cytotoxicity assays of the experimental groups and controls were performed. One-way ANOVA was used to determine the effect of the independent variable (material) on the degree of conversion, film thickness, radiopacity, flow, setting time, water sorption and solubility, and cytotoxicity. For antimicrobial assays, data were analyzed using two-way ANOVA and Ŝidák's test. RESULTS The experimental groups containing natural oils showed higher values of degree of conversion, and lowest water sorption and solubility. EM, B0.5, B1, B2, and RS showed similar film thicknesses. The flow values were statistically similar in all groups. The experimental groups showed adequate cell compatibility. Copaiba oil at 2% increased the antimicrobial effect after 1 and 24 h (p < 0.05). The incorporation of butia or copaiba resulted in a slight modification in some physicochemical properties of the experimental resin sealers. CONCLUSION Novel resin sealers containing natural oils are a promising alternative for endodontics, because of their good physicochemical properties, antimicrobial effects, and cytocompatibility when compared to a commercially available sealer. CLINICAL SIGNIFICANCE Endodontic sealers containing butia or copaiba had satisfactory cytocompatibility, antimicrobial effects, and adequate physicochemical properties.
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Qutieshat AS, Al-Hiyasat AS, Darmani H. Biocompatibility evaluation of Jordanian Portland cement for potential future dental application. J Conserv Dent 2019; 22:249-254. [PMID: 31367108 PMCID: PMC6632633 DOI: 10.4103/jcd.jcd_552_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background The demand for novel Portland cement (PC)-based formulations to be used in dental applications is ever increasing in viewing the foregoing knowledge on the favorable effects of these formulations on cellular proliferation and healing, leading to treatment success. Aim This study investigated the effect of white and gray mineral trioxide aggregate (W-MTA and G-MTA) and white and gray Jordanian PC (W-PC and G-PC) in their raw state on the viability of Balb/C 3T3 fibroblasts using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Materials and Methods Materials were prepared in the form of disks, with a diameter of 5 mm and a thickness of 2 mm. In the first experiment, Balb/C 3T3 fibroblasts were cultured with the material disks using culture plate inserts. In the second experiment, material elutes were added to cultured cells. The elutes were prepared by adding 2 ml serum-free media to 10 disks of each material and then incubated at 37°C for different time intervals. Material elutes were analyzed using ion chromatography for traces of calcium. The data were analyzed using analysis of variance followed by Dunnett test (α = 0.05) or Tukey test (α = 0.05). Results In response to material disks, G-PC had a proliferative effect on cells at day 1 and day 2 with a significant difference from the control at day 1. G-MTA reduced cell viability with a significant difference from the control level at day 2. Elutes of PC showed biocompatible and even proliferative effects on Balb/C 3T3 fibroblasts. Calcium ions were found to leach continuously over the measurement period for all the materials tested in this work. Conclusion Jordanian PC in its raw state was found to be biocompatible, and the results of this work give promise of its wider use as a base for further development to improve the physiochemical and mechanical properties of the material.
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Affiliation(s)
- Abubaker S Qutieshat
- Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Ahmad S Al-Hiyasat
- Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Homa Darmani
- Department of Applied Biological Sciences, Faculty of Science and Arts, Jordan University of Science and Technology, Irbid, Jordan
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Akbulut MB, Arpaci PU, Eldeniz AU. Effects of four novel root-end filling materials on the viability of periodontal ligament fibroblasts. Restor Dent Endod 2018; 43:e24. [PMID: 30135845 PMCID: PMC6103538 DOI: 10.5395/rde.2018.43.e24] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 03/24/2018] [Indexed: 11/22/2022] Open
Abstract
Objectives The aim of this in vitro study was to evaluate the biocompatibility of newly proposed root-end filling materials, Biodentine, Micro-Mega mineral trioxide aggregate (MM-MTA), polymethylmethacrylate (PMMA) bone cement, and Smart Dentin Replacement (SDR), in comparison with contemporary root-end filling materials, intermediate restorative material (IRM), Dyract compomer, ProRoot MTA (PMTA), and Vitrebond, using human periodontal ligament (hPDL) fibroblasts. Materials and Methods Ten discs from each material were fabricated in sterile Teflon molds and 24-hour eluates were obtained from each root-end filling material in cell culture media after 1- or 3-day setting. hPDL fibroblasts were plated at a density of 5 × 103/well, and were incubated for 24 hours with 1:1, 1:2, 1:4, and 1:8 dilutions of eluates. Cell viability was evaluated by XTT assay. Data was statistically analysed. Apoptotic/necrotic activity of PDL cells exposed to material eluates was established by flow cytometry. Results The Vitrebond and IRM were significantly more cytotoxic than the other root-end filling materials (p < 0.05). Those cells exposed to the Biodentine and Dyract compomer eluates showed the highest survival rates (p < 0.05), while the PMTA, MM-MTA, SDR, and PMMA groups exhibited similar cell viabilities. Three-day samples were more cytotoxic than 1-day samples (p < 0.05). Eluates from the cements at 1:1 dilution were significantly more cytotoxic (p < 0.05). Vitrebond induced cell necrosis as indicated by flow cytometry. Conclusions This in vitro study demonstrated that Biodentine and Compomer were more biocompatible than the other root-end filling materials. Vitrebond eluate caused necrotic cell death.
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Affiliation(s)
- Makbule Bilge Akbulut
- Department of Endodontics, Faculty of Dentistry, Necmettin Erbakan University, Konya, Turkey
| | - Pembegul Uyar Arpaci
- Department of Biotechnology, Faculty of Science, Selcuk University, Konya, Turkey
| | - Ayce Unverdi Eldeniz
- Department of Endodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
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Tanomaru-Filho M, Andrade AS, Rodrigues EM, Viola KS, Faria G, Camilleri J, Guerreiro-Tanomaru JM. Biocompatibility and mineralized nodule formation of Neo MTA Plus and an experimental tricalcium silicate cement containing tantalum oxide. Int Endod J 2017; 50 Suppl 2:e31-e39. [DOI: 10.1111/iej.12780] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 04/04/2017] [Indexed: 12/01/2022]
Affiliation(s)
- M. Tanomaru-Filho
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - A. S. Andrade
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - E. M. Rodrigues
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - K. S. Viola
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - G. Faria
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - J. Camilleri
- University of Malta; Faculty of Dental Surgery; Department of Restorative Dentistry; Msida Malta
| | - J. M. Guerreiro-Tanomaru
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
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Rodrigues EM, Gomes-Cornélio AL, Soares-Costa A, Salles LP, Velayutham M, Rossa-Junior C, Guerreiro-Tanomaru JM, Tanomaru-Filho M. An assessment of the overexpression of BMP-2 in transfected human osteoblast cells stimulated by mineral trioxide aggregate and Biodentine. Int Endod J 2017; 50 Suppl 2:e9-e18. [DOI: 10.1111/iej.12745] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 01/17/2017] [Indexed: 01/18/2023]
Affiliation(s)
- E. M. Rodrigues
- Department of Restorative Dentistry; Dental School of São Paulo State University; Araraquara São Paulo
| | - A. L. Gomes-Cornélio
- Department of Restorative Dentistry; Dental School of São Paulo State University; Araraquara São Paulo
| | - A. Soares-Costa
- Department of Genetic and Evolution; Laboratory of Plant Biotechnology; Federal University of São Carlos; São Carlos São Paulo
| | - L. P. Salles
- Cellular Biology Department; Institute of Biological Sciences; University of Brasília; Brasília Distrito Federal
| | - M. Velayutham
- Department of Diagnosis and Surgery; Dental School of São Paulo State University, Araraquara; São Paulo Brazil
| | - C. Rossa-Junior
- Department of Diagnosis and Surgery; Dental School of São Paulo State University, Araraquara; São Paulo Brazil
| | - J. M. Guerreiro-Tanomaru
- Department of Restorative Dentistry; Dental School of São Paulo State University; Araraquara São Paulo
| | - M. Tanomaru-Filho
- Department of Restorative Dentistry; Dental School of São Paulo State University; Araraquara São Paulo
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Akbulut MB, Uyar Arpaci P, Unverdi Eldeniz A. ‘Effects of novel root repair materials on attachment and morphological behaviour of periodontal ligament fibroblasts: Scanning electron microscopy observation’. Microsc Res Tech 2016; 79:1214-1221. [DOI: 10.1002/jemt.22780] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/13/2016] [Accepted: 09/02/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Makbule Bilge Akbulut
- Department of Endodontics, Faculty of Dentistry; Necmettin Erbakan University; Konya Turkey
| | - Pembegul Uyar Arpaci
- Department of Biotechnology, Faculty of Science; Selcuk University; Konya Turkey
| | - Ayce Unverdi Eldeniz
- Department of Endodontics, Faculty of Dentistry; Selcuk University; Konya Turkey
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Ahmed HMA, Luddin N, Kannan TP, Mokhtar KI, Ahmad A. Chemical analysis and biological properties of two different formulations of white portland cements. SCANNING 2016; 38:303-316. [PMID: 26382064 DOI: 10.1002/sca.21270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/28/2015] [Accepted: 09/01/2015] [Indexed: 06/05/2023]
Abstract
White Portland cement (WPC) has generated research interests in the field of endodontics. This study compared between the properties of two formulations of white Portland cement (WPC) of different origin (Malaysia [MA] and Egypt [EG]). WPCs with and without calcium chloride dihydrate were prepared. Scanning electron microscope (SEM), energy dispersive X-ray micro-analysis, and X-ray diffraction were used for surface morphology evaluation, elemental, and phase analysis, respectively. After the preparation of optimized serial dilutions, the cytotoxicity was evaluated on human periodontal ligament fibroblasts (HPLFs) and dental pulp stem cells (DPSCs) using methyl-thiazol-diphenyltetrazolium assay after 24 and 72 h. Cell attachment properties were examined under SEM after 24 and 72 h. Results showed that the surface morphology and chemical composition of both formulations demonstrated detectable variations. The cytotoxicity evaluation showed different cellular responses of HPLFs compared to DSPCs. Both formulations favored the viability of HPLFs. However, the fast set formulations demonstrated severe cytotoxicity on DPSCs. Significant differences between EGWPC and MAWPC were identified (p < 0.05). The cell attachment properties were favorable; however, HPLFs attached and spread over the samples better than DPSCs. In conclusion, WPC of different origin may show differences in chemical and biological properties. The addition of CaCl2 ·2H2 O to WPC can affect its properties. Human cell types may react differently towards different formulations of WPCs. SCANNING 38:303-316, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
| | - Norhayati Luddin
- School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Thirumulu Ponnuraj Kannan
- School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Khairani Idah Mokhtar
- School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Kulliyyah of Dentistry, International Islamic University Malaysia, Bandar Indera Mahkota, Pahang, Kuantan, Malaysia
| | - Azlina Ahmad
- School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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Asawaworarit W, Yachor P, Kijsamanmith K, Vongsavan N. Comparison of the Apical Sealing Ability of Calcium Silicate-Based Sealer and Resin-Based Sealer Using the Fluid-Filtration Technique. Med Princ Pract 2016; 25:561-565. [PMID: 27599002 PMCID: PMC5588513 DOI: 10.1159/000450577] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/05/2016] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE The aim was to evaluate the apical sealing ability of tricalcium silicate-based (MTA Fillapex®) and resin-based (AH Plus®) sealers at 24 h, 7 days and 4 weeks. MATERIALS AND METHODS Thirty-four extracted human upper anterior teeth were used. All the teeth were sectioned to leave the root 15 mm long, and then all the roots were instrumented using a set of ProTaper® rotary instruments. Four roots were selected randomly as controls, and the remaining 30 were randomly divided into 2 groups of 15 each: MTA Fillapex and gutta-percha (group 1) and AH Plus and gutta-percha (group 2) using a warm vertical compaction technique. The apical sealing ability of the filled root canal was measured using the fluid-filtration method with 200 mm Hg (26.67 KPa) above atmospheric pressure at 24 h, 7 days and 4 weeks. The apical microleakage of the 2 groups was compared using Student's t test. p < 0.05 was considered statistically significant. RESULTS The mean apical microleakage in group 1 at 24 h, 7 days and 4 weeks was 1.01 ± 0.24, 0.43 ± 0.07 and 0.24 ± 0.08 nl/s. The corresponding values in group 2 were 1.15 ± 0.40, 0.32 ± 0.09, and 0.38 ± 0.10 nl/s. MTA Fillapex had significantly more leakage than AH Plus at 7 days, but at 4 weeks, MTA Fillapex showed a significantly better sealing ability than AH Plus (p < 0.05). CONCLUSIONS In this study, the tricalcium silicate-based sealer promoted proper sealing when used for filling the root canals.
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Affiliation(s)
| | - Prapaporn Yachor
- Department of Operative Dentistry and Endodontics, Bangkok, Thailand
| | - Kanittha Kijsamanmith
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
- *Dr. Kanittha Kijsamanmith, Department of Oral Biology, Faculty of Dentistry, Mahidol University, 6 Yothi Street, Bangkok 10400 (Thailand), E-Mail
| | - Noppakun Vongsavan
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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Mestieri LB, Tanomaru-Filho M, Gomes-Cornélio AL, Salles LP, Bernardi MIB, Guerreiro-Tanomaru JM. Radiopacity and cytotoxicity of Portland cement associated with niobium oxide micro and nanoparticles. J Appl Oral Sci 2015; 22:554-9. [PMID: 25591023 PMCID: PMC4307770 DOI: 10.1590/1678-775720140209] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/03/2014] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Mineral Trioxide Aggregate (MTA) is composed of Portland Cement (PC) and bismuth oxide (BO). Replacing BO for niobium oxide (NbO) microparticles (Nbµ) or nanoparticles (Nbη) may improve radiopacity and bioactivity. The aim of this study was to evaluate the radiopacity and cytotoxicity of the materials: (1) PC; (2) White MTA; (3) PC+30% Nbµ; (4) PC+30% Nbη. MATERIAL AND METHODS For the radiopacity test, specimens of the different materials were radiographed along an aluminum step-wedge. For cell culture assays, Saos-2 osteoblastic-cells (ATCC HTB-85) were used. Cell viability was evaluated through MTT assay, and bioactivity was assessed by alkaline phosphatase activity assay. RESULTS The results demonstrated higher radiopacity for MTA, followed by Nbµ and Nbη, which had similar values. Cell culture analysis showed that PC and PC+NbO associations promoted greater cell viability than MTA. CONCLUSIONS It was concluded that the combination of PC+NbO is a potential alternative for composition of MTA.
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Affiliation(s)
- Leticia Boldrin Mestieri
- Department of Restorative Dentistry, Araraquara Dental School, Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - Mário Tanomaru-Filho
- Department of Restorative Dentistry, Araraquara Dental School, Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - Ana Livia Gomes-Cornélio
- Department of Restorative Dentistry, Araraquara Dental School, Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - Loise Pedrosa Salles
- Department of Restorative Dentistry, Araraquara Dental School, Univ. Estadual Paulista, Araraquara, SP, Brazil
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Lim ES, Park YB, Kwon YS, Shon WJ, Lee KW, Min KS. Physical properties and biocompatibility of an injectable calcium-silicate-based root canal sealer: in vitro and in vivo study. BMC Oral Health 2015; 15:129. [PMID: 26490372 PMCID: PMC4618726 DOI: 10.1186/s12903-015-0112-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 10/08/2015] [Indexed: 11/30/2022] Open
Abstract
Background The aim of this study was to investigate the physical properties and biological effects of an experimentally developed injectable premixed calcium-silicate root canal sealer (Endoseal) in comparison with mineral trioxide aggregate (MTA) and a resin-based sealer (AHplus). Methods The pH, solubility, dimensional change, flow, and radiopacity of the materials were evaluated. Biocompatibility was evaluated on the basis of cell morphology and a viability test using MC3T3-E1 cells. For evaluate inflammatory reaction, the tested sealers were implanted into dorsal subcutaneous connective tissue of Sprague Dawley rats. After 7 days, the implants with the surrounding tissue were retrieved, and histological evaluation was performed. Results Endoseal showed high alkalinity similar to that of MTA. The solubility of the tested materials was similar. The dimensional change and flow of Endoseal was significantly higher than that of other materials (P < 0.05). The radiopacity of Endoseal was lower than that of AHplus (P < 0.05). The biocompatibility was similar to those of MTA. Inflammatory reaction of Endoseal was similar with that of MTA, but lower than that of AHplus (P < 0.05). Conclusions The present study indicates that Endoseal has favorable physical properties and biocompatibility. Therefore, we suggest that Endoseal has the potential to be used as a predictable root canal sealer.
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Affiliation(s)
- Eun-Su Lim
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, 567 Baekje-daero, Jeonju-si, 54896, Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro, 54907, Jeonju-si, Korea
| | - Young-Bae Park
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, 567 Baekje-daero, Jeonju-si, 54896, Korea
| | - Young-Sun Kwon
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, 567 Baekje-daero, Jeonju-si, 54896, Korea
| | - Won-Jun Shon
- Department of Conservative Dentistry, Dental Research Institute and School of Dentistry, Seoul National University, 101 Daehak-ro, 03080, Seoul, Korea.
| | - Kwang-Won Lee
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, 567 Baekje-daero, Jeonju-si, 54896, Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro, 54907, Jeonju-si, Korea
| | - Kyung-San Min
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, 567 Baekje-daero, Jeonju-si, 54896, Korea. .,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro, 54907, Jeonju-si, Korea.
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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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Sawhney S, Vivekananda Pai AR. Comparative evaluation of the calcium release from mineral trioxide aggregate and its mixture with glass ionomer cement in different proportions and time intervals - An in vitro study. Saudi Dent J 2015; 27:215-9. [PMID: 26644757 PMCID: PMC4642194 DOI: 10.1016/j.sdentj.2014.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 06/26/2014] [Accepted: 12/21/2014] [Indexed: 11/25/2022] Open
Abstract
Background Addition of glass ionomer cement (GIC) has been suggested to improve the setting time and handling characteristics of mineral trioxide aggregate (MTA). This study evaluated the effect of adding GIC to MTA in terms of calcium release, an issue that has not been previously studied. Materials and methods The study comprised four groups with five samples each: a control group of MTA alone and experimental groups I (1MTA:1GIC), II (2MTA:1GIC), and III (1MTA:2GIC) based on the mixture of MTA and GIC powders in the respective proportions by volume. Calcium release from the samples was measured by atomic absorption spectrophotometry at 15 min, 6 h, 24 h, and 1 week after setting. The level of statistical significance was set at p < 0.05. Results Groups I (1MTA:1GIC) and III (1MTA:2GIC) released significantly less calcium than the control group at all time periods, except at 15 min for group I. Group II (2MTA:1GIC) showed no significant difference in calcium release compared to the control at any time period. Group II exhibited greater calcium release than group I or III at all time periods, with significant differences between groups I and II at 1 week and between groups I and III at 24 h and 1 week. There were no statistical differences in calcium release between groups I and III. Conclusions Adding GIC to improve the setting time and handling properties of the MTA powder can be detrimental to the calcium-releasing ability of the resultant mixture, depending on the proportion of GIC added. Adding MTA and GIC at a proportion of 2:1 by volume did not impact calcium release from the mixture. These findings should be verified through further clinical studies.
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Affiliation(s)
- Surbhi Sawhney
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences (Manipal University), Light House Hill Road, Mangalore 575001, Karnataka, India
| | - A R Vivekananda Pai
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences (Manipal University), Light House Hill Road, Mangalore 575001, Karnataka, India
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Ahmed HMA, Luddin N, Kannan TP, Mokhtar KI, Ahmad A. Cell Attachment Properties of Portland Cement–based Endodontic Materials: Biological and Methodological Considerations. J Endod 2014; 40:1517-23. [DOI: 10.1016/j.joen.2014.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/10/2014] [Accepted: 06/21/2014] [Indexed: 10/24/2022]
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18
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Wu BC, Wei CK, Hsueh NS, Ding SJ. Comparative cell attachment, cytotoxicity and antibacterial activity of radiopaque dicalcium silicate cement and white-coloured mineral trioxide aggregate. Int Endod J 2014; 48:268-76. [PMID: 24802368 DOI: 10.1111/iej.12310] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 04/30/2014] [Indexed: 12/26/2022]
Abstract
AIM To comparatively examine the cell attachment, cytotoxicity, and antibacterial activity of radiopaque dicalcium silicate cement (RDSC) and ProRoot white-coloured mineral trioxide aggregate (WMTA). METHODOLOGY AlamarBlue was used for real-time and repeated monitoring of MG63 cell attachment on freshly mixed and set cements. The pH changes in the growth medium at different time-points were also measured. Cytotoxicity evaluation was performed according to ISO 10993-5 specifications. The antibacterial activity of the cement specimens was evaluated using Enterococcus faecalis. RESULTS There were no significant differences (P > 0.05) between the two cements for cell attachment either in the fresh groups or in the set groups at all culture times. Neither freshly mixed group nor set groups had significant pH differences. In the case of cytotoxicity, RDSC was significantly (P < 0.05) superior to WMTA at 12 and 24 h of incubation. RDSC and WMTA possessed similar antimicrobial activity, substantiated by the formation of growth inhibition zones and bacteriostasis ratio in E. faecalis strains. CONCLUSIONS The cell attachment, cytotoxicity and antibacterial efficacy of RDSC were comparable to those reported for ProRoot WMTA. The results of the current study suggest that this RDSC could be used as a root-end filling material and root sealer.
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Affiliation(s)
- B C Wu
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan; Department of Dentistry, Chung Shan Medical University Hospital, Taichung City, Taiwan
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de Aza PN, Zuleta F, Velasquez P, Vicente-Salar N, Reig JA. (α'(H))-Dicalcium silicate bone cement doped with tricalcium phosphate: characterization, bioactivity and biocompatibility. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:445-452. [PMID: 24218299 DOI: 10.1007/s10856-013-5084-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 10/25/2013] [Indexed: 06/02/2023]
Abstract
The influence of phosphorus doping on the properties of (α'(H))-dicalcium silicate (C(2)S) bone cement was analyzed, in addition to bioactivity and biocompatibility. All the cements were composed of a solid solution of TCP in C(2)S ([Formula: see text]-C(2)S(ss)) as the only phase present. The compressive strength ranged from 3.8-16.3 MPa. Final setting times ranged from 10 to 50 min and were lower for cements with lower L/P content. Calcium silicate hydrate was the principal phase formed during the hydration process of the cements. The cement exhibited a moderate degradation and could induce carbonated hydroxyapatite formation on its surface and into the pores. The cell attachment test showed that the (α'(H))-C(2)SiO(4) solid solution supported human adipose stem cells adhesion and spreading, and the cells established close contacts with the cement after 24 h of culture. The novel (α'(H))-C(2)S(ss) cements might be suitable for potential applications in the biomedical field, preferentially as materials for bone/dental repair.
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Affiliation(s)
- Piedad N de Aza
- Instituto de Bioingeniería, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03202, Elche, Alicante, Spain,
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20
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Yang X, Liu M, Zhao Y, Jia H, Xu S, Li X, Chen X, Zhang F, Gao C, Gou Z. Rational design and fabrication of a β-dicalcium silicate-based multifunctional cement with potential for root canal filling treatment. J Mater Chem B 2014; 2:3830-3838. [PMID: 32261729 DOI: 10.1039/c4tb00129j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gypsum-introduced, CaO-rich dicalcium silicate-based cements exhibit multifunctional physicochemical and biological properties and meet some challenging criteria in root canal therapy.
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Affiliation(s)
- Xianyan Yang
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058, China
| | - Min Liu
- Hangzhou Dental Hospital
- Hangzhou 310020, China
| | - Yu Zhao
- Hangzhou Dental Hospital
- Hangzhou 310020, China
| | - Hongyu Jia
- Hangzhou Dental Hospital
- Hangzhou 310020, China
| | - Sanzhong Xu
- The First Affiliated Hospital
- College of Medicine of Zhejiang University
- Hangzhou 310003, China
| | - Xigong Li
- The First Affiliated Hospital
- College of Medicine of Zhejiang University
- Hangzhou 310003, China
| | - Xiaoyi Chen
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058, China
| | - Feng Zhang
- Department of Stomatology Children's Hospital School of Medicine
- Zhejiang University
- Hangzhou 310006, China
| | - Changyou Gao
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058, China
| | - Zhongru Gou
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058, China
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Topçuoğlu HS, Tuncay Ö, Karataş E, Arslan H, Yeter K. In vitro fracture resistance of roots obturated with epoxy resin-based, mineral trioxide aggregate-based, and bioceramic root canal sealers. J Endod 2013; 39:1630-3. [PMID: 24238462 DOI: 10.1016/j.joen.2013.07.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 07/24/2013] [Accepted: 07/29/2013] [Indexed: 10/26/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the fracture resistance of teeth filled with 3 different endodontic sealers. METHODS Seventy-five single-rooted extracted mandibular premolars were decoronated to a length of 13 mm. The teeth were randomly divided into 5 groups (n = 15 for each group). In group 1, the teeth were left unprepared and unfilled (negative control), and in group 2, the teeth were left unobturated (positive control). The rest of the roots were prepared by using the ProTaper System up to a master apical file size of F3: group 3, bioceramic sealer (Endosequence BC sealer) + gutta-percha; group 4, mineral trioxide aggregate-based sealer (Tech Biosealer Endo) + gutta-percha; and group 5, epoxy resin-based sealer (AH Plus Jet) + gutta-percha. All root specimens were stored for 2 weeks at 100% humidity to allow the complete setting of the sealers. Each specimen was then subjected to fracture testing by using a universal testing machine at a crosshead speed of 1.0 mm/min(-1) until the root fractured. The force required to fracture each specimen was recorded, and the data were analyzed statistically. RESULTS The fracture values of groups 3 and 5 were significantly higher than those of group 4 (P < .05). There was no significant difference between groups 3 and 5 (P > .05). CONCLUSIONS In contrast to Tech Biosealer Endo, Endosequence BC and AH Plus Jet sealer increased the force to fracture in root-filled single-rooted premolar teeth.
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Güven EP, Taşlı PN, Yalvac ME, Sofiev N, Kayahan MB, Sahin F. In vitrocomparison of induction capacity and biomineralization ability of mineral trioxide aggregate and a bioceramic root canal sealer. Int Endod J 2013; 46:1173-82. [DOI: 10.1111/iej.12115] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 04/02/2013] [Indexed: 12/29/2022]
Affiliation(s)
- E. P. Güven
- Department of Endodontics; Faculty of Dentistry; Yeditepe University; Istanbul Turkey
| | - P. N. Taşlı
- Department of Genetics and Bioengineering; Faculty of Engineering and Architecture; Yeditepe University; Istanbul Turkey
| | - M. E. Yalvac
- Center for Gene Therapy; Department of Pediatrics; The Research Institute at Nationwide Children's Hospital; Ohio State University; Columbus OH USA
| | - N. Sofiev
- Department of Oral and Maxillofacial Surgery; Faculty of Dentistry; Istanbul University; Capa; Istanbul Turkey
| | - M. B. Kayahan
- Department of Endodontics; Faculty of Dentistry; Yeditepe University; Istanbul Turkey
| | - F. Sahin
- Department of Genetics and Bioengineering; Faculty of Engineering and Architecture; Yeditepe University; Istanbul Turkey
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Gandolfi MG, Taddei P, Modena E, Siboni F, Prati C. Biointeractivity-related versus chemi/physisorption-related apatite precursor-forming ability of current root end filling materials. J Biomed Mater Res B Appl Biomater 2013; 101:1107-23. [DOI: 10.1002/jbm.b.32920] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/23/2013] [Accepted: 01/30/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Giovanna Gandolfi
- Laboratory of Biomaterials and Oral Pathology; Unit of Odontostomatological Sciences, Department of Biomedical and NeuroMotor Sciences, University of Bologna; Bologna Italy
| | - Paola Taddei
- Unit of Biochemistry; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - Enrico Modena
- Unit of Biochemistry; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - Francesco Siboni
- Laboratory of Biomaterials and Oral Pathology; Unit of Odontostomatological Sciences, Department of Biomedical and NeuroMotor Sciences, University of Bologna; Bologna Italy
| | - Carlo Prati
- Endodontic Clinical Section (Unit of Odontostomatological Sciences); Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
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Hakki SS, Bozkurt BS, Ozcopur B, Gandolfi MG, Prati C, Belli S. The response of cementoblasts to calcium phosphate resin-based and calcium silicate-based commercial sealers. Int Endod J 2012; 46:242-52. [DOI: 10.1111/j.1365-2591.2012.02122.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 08/03/2012] [Indexed: 01/11/2023]
Affiliation(s)
- S. S. Hakki
- Department of Periodontology; Selcuk University; Konya; Turkey
| | - B. S. Bozkurt
- Department of Periodontology; Selcuk University; Konya; Turkey
| | - B. Ozcopur
- Department of Operative Dentistry; Faculty of Dentistry; Yuzuncu Yil University; Van; Turkey
| | - M. G. Gandolfi
- Laboratory of Biomaterials; Department of Odontostomatological Sciences; University of Bologna; Bologna; Italy
| | - C. Prati
- Laboratory of Biomaterials; Department of Odontostomatological Sciences; University of Bologna; Bologna; Italy
| | - S. Belli
- Department of Endodontics; Selcuk University; Konya; Turkey
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Chiang TY, Ding SJ. Physicochemical properties of radiopaque dicalcium silicate cement as a root-end filling material in an acidic environment. Int Endod J 2012; 46:234-41. [DOI: 10.1111/j.1365-2591.2012.02112.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 07/04/2012] [Indexed: 01/06/2023]
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Salles LP, Gomes-Cornélio AL, Guimarães FC, Herrera BS, Bao SN, Rossa-Junior C, Guerreiro-Tanomaru JM, Tanomaru-Filho M. Mineral trioxide aggregate-based endodontic sealer stimulates hydroxyapatite nucleation in human osteoblast-like cell culture. J Endod 2012; 38:971-6. [PMID: 22703663 DOI: 10.1016/j.joen.2012.02.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 02/21/2012] [Accepted: 02/22/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION The main purpose of this study was to evaluate the biocompatibility and bioactivity of a new mineral trioxide aggregate (MTA)-based endodontic sealer, MTA Fillapex (MTA-F; Angelus, Londrina, Brazil), in human cell culture. METHODS Human osteoblast-like cells (Saos-2) were exposed for 1, 2, 3, and 7 days to MTA-F, Epiphany SE (EP-SE; SybronEndo, Orange, CA), and zinc oxide-eugenol sealer (ZOE). Unexposed cultures were the control group (CT). The viability of the cells was assessed by MTT assay and the morphology by scanning electron microscopy (SEM). The bioactivity of MTA-F was evaluated by alkaline phosphatase activity (ALP) and the detection of calcium deposits in the culture with alizarin red stain (ARS). Energy-dispersive X-ray spectroscopy (EDS) was used to chemically characterize the hydroxyapatite crystallites (HAP). Saos-2 cells were cultured for 21 days for ARS and SEM/EDS. ARS results were expressed as the number of stained nodules per area. Statistical analysis was performed with analysis of variance and Bonferroni tests (P < .01). RESULTS MTA-F exposure for 1, 2, and 3 days resulted in increased cytotoxicity. In contrast, viability increased after 7 days of exposure to MTA-F. Exposure to EP-SE and ZOE was cytotoxic at all time points. At day 7, ALP activity increase was significant in the MTA-F group. MTA-F presented the highest percentage of ARS-stained nodules (MTA-F > CT > EP-SE > ZOE). SEM/EDS analysis showed hydroxyapatite crystals only in the MTA-F and CT groups. In the MTA-F group, crystallite morphology and chemical composition were different from CT. CONCLUSIONS After setting, the cytotoxicity of MTA-F decreases and the sealer presents suitable bioactivity to stimulate HAP crystal nucleation.
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Affiliation(s)
- Loise Pedrosa Salles
- Department of Restorative Dentistry, Dental School of São Paulo State University, Araraquara, São Paulo, Brazil
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Optimization of calcium chloride content on bioactivity and mechanical properties of white Portland cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.10.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gandolfi MG, Shah SN, Feng R, Prati C, Akintoye SO. Biomimetic calcium-silicate cements support differentiation of human orofacial mesenchymal stem cells. J Endod 2011; 37:1102-8. [PMID: 21763902 DOI: 10.1016/j.joen.2011.05.009] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 04/18/2011] [Accepted: 05/03/2011] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Human orofacial bone mesenchymal stem cells (OFMSCs) from maxilla and mandible have robust osteogenic regenerative properties on the basis of our previous reports that demonstrate phenotypic and functional differences between jaw and axial bone mesenchymal stem cells in same individuals. Furthermore, a combination of OFMSCs with bioactive calcium-releasing cements can potentially improve OFMSC multilineage differentiation capacity, but biocompatibility of calcium-silicate cements with OFMSCs is still unclear. We tested the hypothesis that material extracts of calcium-releasing calcium-silicate cements support biomimetic microenvironment for survival and differentiation of human OFMSCs. METHODS Two experimental calcium-silicate cements, (1) calcium-silicate mineral powder (wTC) containing dicalcium and tricalcium-silicate, calcium sulfate, and calcium chloride and (2) wTC doped with alpha-tricalcium phosphate (wTC-αTCP), were designed and prepared. Cement setting times were assessed by Gilmore needles, ability to release calcium and hydroxyl ions was assessed by potentiometric methods, and OFMSC attachment to calcium-silicate discs was assessed. Calcium-silicate material extracts were tested for ability to support OFMSC survival and in vitro/in vivo differentiation. RESULTS Fewer OFMSCs attached to calcium-silicate discs relative to tissue culture plastic (P = .001). Extracts of calcium-silicate cements sustained OFMSC survival, maintained steady state levels of vascular cell adhesion molecule-1, alkaline phosphatase, and bone sialoprotein while up-regulating their respective gene transcripts. Adipogenic and in vivo bone regenerative capacities of OFMSCs were also unaffected by calcium-silicate extracts. CONCLUSIONS Ion-releasing calcium-silicate cements support a biomimetic microenvironment conducive to survival and differentiation of OFMSCs. Combination of OFMSCs and calcium-silicate cement can potentially promote tissue regeneration in periapical bone defects.
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Affiliation(s)
- Maria Giovanna Gandolfi
- Laboratory of Biomaterials and Oral Pathology, Department of Odontostomatological Sciences, University of Bologna, Bologna, Italy
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Shie MY, Chang HC, Ding SJ. Effects of altering the Si/Ca molar ratio of a calcium silicate cement on in vitro cell attachment. Int Endod J 2011; 45:337-45. [DOI: 10.1111/j.1365-2591.2011.01981.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Lendini M, Fornara R, Pasqualini D. L’otturazione di apici canalari ampi o alterati con MTA. GIORNALE ITALIANO DI ENDODONZIA 2011. [DOI: 10.1016/j.gien.2011.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Hakki SS, Bozkurt SB, Ozcopur B, Purali N, Belli S. Periodontal ligament fibroblast response to root perforations restored with different materials - a laboratory study. Int Endod J 2011; 45:240-8. [DOI: 10.1111/j.1365-2591.2011.01968.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Alpha-TCP improves the apatite-formation ability of calcium-silicate hydraulic cement soaked in phosphate solutions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.05.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Improvement of the Properties of Mineral Trioxide Aggregate by Mixing with Hydration Accelerators. J Endod 2011; 37:1433-6. [DOI: 10.1016/j.joen.2011.06.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 06/14/2011] [Accepted: 06/14/2011] [Indexed: 11/22/2022]
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Gandolfi MG, Taddei P, Siboni F, Modena E, Ginebra MP, Prati C. Fluoride-containing nanoporous calcium-silicate MTA cements for endodontics and oral surgery: early fluorapatite formation in a phosphate-containing solution. Int Endod J 2011; 44:938-49. [DOI: 10.1111/j.1365-2591.2011.01907.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gandolfi MG, Taddei P, Siboni F, Modena E, Ciapetti G, Prati C. Development of the foremost light-curable calcium-silicate MTA cement as root-end in oral surgery. Chemical–physical properties, bioactivity and biological behavior. Dent Mater 2011; 27:e134-57. [DOI: 10.1016/j.dental.2011.03.011] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 02/11/2011] [Accepted: 03/28/2011] [Indexed: 10/18/2022]
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Taddei P, Modena E, Tinti A, Siboni F, Prati C, Gandolfi MG. Vibrational investigation of calcium-silicate cements for endodontics in simulated body fluids. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2010.12.058] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cytotoxicity of Portland Cement with Different Radiopacifying Agents: A Cell Death Study. J Endod 2011; 37:203-10. [PMID: 21238803 DOI: 10.1016/j.joen.2010.11.017] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 11/10/2010] [Accepted: 11/12/2010] [Indexed: 11/20/2022]
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Effects of iRoot SP on Mineralization-related Genes Expression in MG63 Cells. J Endod 2010; 36:1978-82. [DOI: 10.1016/j.joen.2010.08.038] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 08/07/2010] [Accepted: 08/25/2010] [Indexed: 11/23/2022]
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Parirokh M, Mirsoltani B, Raoof M, Tabrizchi H, Haghdoost AA. Comparative study of subcutaneous tissue responses to a novel root-end filling material and white and grey mineral trioxide aggregate. Int Endod J 2010; 44:283-9. [PMID: 21091493 DOI: 10.1111/j.1365-2591.2010.01808.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM To compare the subcutaneous tissue response to grey mineral trioxide aggregate (GMTA), white mineral trioxide aggregate (WMTA) and a new experimental cement (calcium enriched cement, CEM). METHODOLOGY Thirty-six Wistar male albino rats each received three implants, containing one of the tested materials, and an empty tube as a control. Seven, 30 and 60 days after implantation, the animals were sacrificed. After histological preparation and H&E staining, the specimens were evaluated for capsule thickness, necrosis, and for the type, the severity, and the extent of inflammation. Kruskal Wallis and Chi-square tests were used for data analysis. RESULTS After 1 week, CEM produced no necrosis compared to both types of WMTA and GMTA (P = 0.007). After 30 days, GMTA specimens had significantly less inflammation compared with WMTA and CEM (P = 0.011). After 60 days, less inflammation was associated with CEM specimens (P = 0.0001) compared to the other materials. Dystrophic calcifications in the connective tissue adjacent to all experimental material were detected. CONCLUSION Histological observation illustrated that all materials were well tolerated by the subcutaneous tissues.
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Affiliation(s)
- M Parirokh
- Oral and Dental Diseases Research Center, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
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Gandolfi MG, Prati C. MTA and F-doped MTA cements used as sealers with warm gutta-percha. Long-term study of sealing ability. Int Endod J 2010; 43:889-901. [PMID: 20618878 DOI: 10.1111/j.1365-2591.2010.01763.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the long-term sealing ability (up to 6 months) of two experimental calcium silicate MTA cements used as root canal sealers in association with warm gutta-percha. METHODOLOGY Calcium silicate (MTA) and calcium-fluoro-silicate powders were prepared. Sodium fluoride was included in FMTA (Fluoride-doped Mineral Trioxide Aggregate) as an expansive and retardant agent. Single-rooted teeth were instrumented with NiTi rotary instruments, filled with warm gutta-percha in association with one of the experimental sealers or with AH Plus as a control (n = 20 for each sealer) and stored at 37 °C. Sealing was assessed at 24, 48 h, 1, 2 weeks and 1, 3, 6 months by a fluid filtration method. Scanning electron microscopy with energy dispersive analysis (SEM/EDX) was used to study the dentine/sealer interface of roots stored for 6 months and the surface of cement disks stored for 24 h. RESULTS All sealers revealed a statistically significant reduction (P < 0.05) in fluid filtration after the first 2 weeks. No statistically significant differences were observed between FMTA and AH Plus at all analysis times. At short times (24, 48-h), no statistically significant differences were found between the experimental cements and AH Plus. At long-term evaluations (1, 3, 6 months), FMTA and AH Plus sealed significantly better (P < 0.05) than MTA. FMTA was associated with lower fluid filtration rates, and the seal was stable from 48 h to 6 months, thus proving the most effective material. Scanning electron microscopy with energy dispersive analysis of root sections filled with calcium silicate sealers revealed the formation of a blend layer of gutta-percha and cement consequent to the warm gutta-percha condensation technique. Scanning electron microscopy with energy dispersive analysis of 24-h-stored disks identified a Ca-rich coating on the outer surface consisting of globular particles (calcium hydroxide and calcium carbonate), and a deeper internal Ca- and Si-rich region consisting of needle-like ettringite crystals and round formations of calcium silicate hydrate gel. CONCLUSION Fluoride-doped MTA demonstrated stable sealing during a period of up to 6 months and significantly better than conventional calcium silicate MTA cements and comparable to AH Plus. The study supports the suitability of calcium silicate MTA cements as sealers in association with warm gutta-percha for root filling.
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Affiliation(s)
- M G Gandolfi
- Laboratory of Biomaterials and Oral Pathology of Endodontic Clinical Section, Department of Odontostomatological Sciences, University of Bologna, Bologna, Italy.
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Environmental scanning electron microscopy connected with energy dispersive x-ray analysis and Raman techniques to study ProRoot mineral trioxide aggregate and calcium silicate cements in wet conditions and in real time. J Endod 2010; 36:851-7. [PMID: 20416432 DOI: 10.1016/j.joen.2009.12.007] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 12/10/2009] [Accepted: 12/12/2009] [Indexed: 11/22/2022]
Abstract
INTRODUCTION ProRoot mineral trioxide aggregate (MTA) and calcium silicate cements are able to set in a moist environment. The aim of the study was to examine the surface structure and composition of a cement paste under wet conditions and in real time during setting by environmental scanning electron microscopy connected with energy dispersive x-ray analysis (ESEM-EDX) and micro-Raman techniques. METHODS White ProRoot MTA and experimental white tetrasilicate cement (wTC) and wTC containing bismuth oxide (wTC-Bi) were studied. Cement disks were analyzed 10 minutes after powder-liquid mixing (freshly prepared samples) and after immersion in Dulbecco phosphate-buffered saline at 37 degrees C for 24 hours (24-hour-aged samples). RESULTS Freshly prepared wet cements at ESEM-EDX exposed an irregular surface (displaying calcium, silicon, aluminum, chlorine reflexes, and bismuth traces in MTA and wTC-Bi) with needle-like and cubic-hexagonal shaped crystals. Aggregates of spheroidal Ca-P-rich crystals (spherulites) appeared on the surface of 24-hour-aged samples. The starting unhydrated powders displayed the typical Raman bands of Portland cement components: alite, belite, and calcium sulfate (only as anhydrite in MTA and as both anhydrite and gypsum in wTC and wTC-Bi). MTA powder showed higher amount of calcium carbonate and lower quantities of anhydrite and higher crystallinity of the silicate component, leading to a slower hydration reaction. Products/markers of hydration reactions were present on fresh samples; ettringite formed on the surface of all the cements; calcium hydroxide (portlandite) was detected only on the surface of wTC, but no conclusion can be drawn on wTC-Bi and MTA because of the interference of bismuth oxide. Calcium phosphate and calcite/aragonite bands were detected on all 24-hour-aged cements; portlandite was no longer detected on wTC. CONCLUSIONS ESEM and micro-Raman are powerful and suitable techniques to investigate endodontic calcium silicate hydrated cements in real time and in their humid state without inducing artifacts by sample preparation. The formation of apatite spherulites on calcium silicate cements might have clinical relevance.
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Reparative dentinogenesis induced by mineral trioxide aggregate: a review from the biological and physicochemical points of view. Int J Dent 2009; 2009:464280. [PMID: 20339574 PMCID: PMC2837314 DOI: 10.1155/2009/464280] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Accepted: 09/19/2009] [Indexed: 01/02/2023] Open
Abstract
This paper aims to review the biological and physicochemical properties of mineral trioxide aggregate (MTA) with respect to its ability to induce reparative dentinogenesis, which involves complex cellular and molecular events leading to hard-tissue repair by newly differentiated odontoblast-like cells. Compared with that of calcium hydroxide-based materials, MTA is more efficient at inducing reparative dentinogenesis in vivo. The available literature suggests that the action of MTA is attributable to the natural wound healing process of exposed pulps, although MTA can stimulate hard-tissue-forming cells to induce matrix formation and mineralization in vitro. Physicochemical analyses have revealed that MTA not only acts as a "calcium hydroxide-releasing" material, but also interacts with phosphate-containing fluids to form apatite precipitates. MTA also shows better sealing ability and structural stability, but less potent antimicrobial activity compared with that of calcium hydroxide. The clinical outcome of direct pulp capping and pulpotomy with MTA appears quite favorable, although the number of controled prospective studies is still limited. Attempts are being conducted to improve the properties of MTA by the addition of setting accelerators and the development of new calcium silicate-based materials.
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Kinetics of apatite formation on a calcium-silicate cement for root-end filling during ageing in physiological-like phosphate solutions. Clin Oral Investig 2009; 14:659-68. [DOI: 10.1007/s00784-009-0356-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Accepted: 11/10/2009] [Indexed: 10/20/2022]
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In Vitro Bioactivity and Biocompatibility of Dicalcium Silicate Cements for Endodontic Use. J Endod 2009; 35:1554-7. [DOI: 10.1016/j.joen.2009.08.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Revised: 08/12/2009] [Accepted: 08/16/2009] [Indexed: 11/18/2022]
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Gandolfi MG, Iacono F, Agee K, Siboni F, Tay F, Pashley DH, Prati C. Setting time and expansion in different soaking media of experimental accelerated calcium-silicate cements and ProRoot MTA. ACTA ACUST UNITED AC 2009; 108:e39-45. [PMID: 19846328 DOI: 10.1016/j.tripleo.2009.07.039] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Accepted: 07/20/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The setting time and the expansion in deionized water, phosphate-buffered saline (PBS), 20% fetal bovine serum (FBS)/80% PBS or hexadecane oil of experimental accelerated calcium-silicate cements and ProRoot MTA were evaluated. STUDY DESIGN Different compounds such as sodium fluoride, strontium chloride, hydroxyapatite, and tricalcium phosphate were separately added to a basic experimental calcium-silicate cement to test their effect on setting and expansion. The initial and final setting times were determined using appropriate Gilmore needles. A linear variable differential transformer (LVDT) device was used to test the restricted hygroscopic linear expansion over 180 minutes of cements immersed in different solutions. Results were statistically compared using a 2-way ANOVA test (cement type versus solution type). RESULTS All experimental cements showed initial setting times between 28 and 45 minutes and final setting times between 52 and 80 minutes. MTA showed a final setting time of 170 minutes. Final setting time of all experimental cements was faster than MTA. All cements showed slight (0.04%-0.77%) expansion in water, PBS, or FBS/PBS. Only fluoride-containing cement showed a significant expansion in water (6.68%) and in PBS (6.72%). The PBS/FBS contamination significantly reduced the expansion of fluoride-containing cement (2.98%) and MTA (0.07%). In contrast, cements showed a slight shrinkage when immersed in hexadecane, especially fluoride-containing cement. CONCLUSIONS The study demonstrated that: (1) the setting time of calcium-silicate cements may be effectively reduced; (2) the expansion is a water dependent mechanism owing to water uptake, because no expansion occurred in cements immersed in oil; (3) a correlation between setting time and expansion in water and PBS exists; (4) fluorine-containing cement showed a significant expansion in water and in PBS; (5) the immersion in FBS/PBS strongly reduced the expansion of MTA and fluoride-doped cement suggesting that fluid contamination (ie, blood) during surgical procedures may greatly affect the expansion of some calcium-silicate cements.
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Affiliation(s)
- Maria Giovanna Gandolfi
- Department of Dental Sciences, Endodontic Clinical Section, University of Bologna, Bologna, Italy.
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Chen CC, Ho CC, David Chen CH, Ding SJ. Physicochemical Properties of Calcium Silicate Cements for Endodontic Treatment. J Endod 2009; 35:1288-91. [DOI: 10.1016/j.joen.2009.05.036] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 05/25/2009] [Accepted: 05/28/2009] [Indexed: 10/20/2022]
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Lygre H, Moe G, Nerdal W, Holmsen H. Interaction of articaine hydrochloride with prokaryotic membrane lipids. Acta Odontol Scand 2009; 67:1-7. [PMID: 18941950 DOI: 10.1080/00016350802443466] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Local anesthetics are the most commonly used drugs in dentistry, with a wide range of effects, including antimicrobial activity. High antimicrobial effects have recently been reported on oral microbes from articaine hydrochloride, revealed by the minimum inhibitory concentration and minimal bactericidal concentration. Additionally, articaine has recently been used as an alkaline component in endodontic materials with a proposed antibacterial activity. However, the detailed mechanisms of action have not been discussed. MATERIAL AND METHODS We determined the Langmuir surface pressure/molecular area isotherms of prokaryotic lipid monolayers, as well as the phospholipid phase transitions, by employing differential scanning calorimetry on unilamellar prokaryotic liposomes (bilayers). RESULTS Articaine hydrochloride was found to interact with the prokaryotic membrane lipids in both monolayers and bilayers. An increase of the phospholipid molecular area of acidic glycerophospholipids as well as a decrease in phase transition temperature and enthalpy were found with increasing articaine hydrochloride concentration. The thermodynamic changes by adding articaine hydrochloride to prokaryotic membrane lipids are potentially related to the effects observed from antimicrobial peptides resulting from membrane insertion, aggregate composition, pore formation, and lysis. CONCLUSION Interaction of articaine hydrochloride with prokaryotic membrane lipids is indicated. Hence, further research is necessary to gain insight into where these compounds exert their effects at the molecular level.
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Asgary S, Eghbal MJ, Parirokh M, Ghoddusi J, Kheirieh S, Brink F. Comparison of Mineral Trioxide Aggregate's Composition with Portland Cements and a New Endodontic Cement. J Endod 2009; 35:243-50. [PMID: 19166783 DOI: 10.1016/j.joen.2008.10.026] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 10/19/2008] [Accepted: 10/22/2008] [Indexed: 11/16/2022]
Affiliation(s)
- Saeed Asgary
- Department of Endodontics, Iranian Center for Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University M.C., Tehran, Iran.
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