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Song X, Segura-Egea JJ, Díaz-Cuenca A. Sol-Gel Technologies to Obtain Advanced Bioceramics for Dental Therapeutics. Molecules 2023; 28:6967. [PMID: 37836810 PMCID: PMC10574775 DOI: 10.3390/molecules28196967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/29/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
The aim of this work is to review the application of bioceramic materials in the context of current regenerative dentistry therapies, focusing on the latest advances in the synthesis of advanced materials using the sol-gel methodology. Chemical synthesis, processing and therapeutic possibilities are discussed in a structured way, according to the three main types of ceramic materials used in regenerative dentistry: bioactive glasses and glass ceramics, calcium phosphates and calcium silicates. The morphology and chemical composition of these bioceramics play a crucial role in their biological properties and effectiveness in dental therapeutics. The goal is to understand their chemical, surface, mechanical and biological properties better and develop strategies to control their pore structure, shape, size and compositions. Over the past decades, bioceramic materials have provided excellent results in a wide variety of clinical applications related to hard tissue repair and regeneration. Characteristics, such as their similarity to the chemical composition of the mineral phase of bones and teeth, as well as the possibilities offered by the advances in nanotechnology, are driving the development of new biomimetic materials that are required in regenerative dentistry. The sol-gel technique is a method for producing synthetic bioceramics with high purity and homogeneity at the molecular scale and to control the surfaces, interfaces and porosity at the nanometric scale. The intrinsic nanoporosity of materials produced by the sol-gel technique correlates with the high specific surface area, reactivity and bioactivity of advanced bioceramics.
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Affiliation(s)
- Xiaozhe Song
- Materials Science Institute of Seville (ICMS), Joint CSIC-University of Seville Center, 41092 Sevilla, Spain;
| | - Juan J. Segura-Egea
- Department of Stomatology, Faculty of Dentistry, University of Seville, 41009 Seville, Spain;
| | - Aránzazu Díaz-Cuenca
- Materials Science Institute of Seville (ICMS), Joint CSIC-University of Seville Center, 41092 Sevilla, Spain;
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Jeon MJ, Park JW, Seo DG. Intratubular crystal formation in the exposed dentin from nano-sized calcium silicate for dentin hypersensitivity treatment. Sci Rep 2023; 13:14243. [PMID: 37648709 PMCID: PMC10469191 DOI: 10.1038/s41598-023-30351-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/21/2023] [Indexed: 09/01/2023] Open
Abstract
The aim of this study is to evaluate intratubular crystal formation from the experimental material consisting of dicalcium silicate (C2S) and tricalcium silicate (C3S) with nano-scaled particle size. A total of twenty-four specimens were made by isolating 8 mm of the cervical part centered at the cementoenamel junction of extracted premolars. Twelve specimens were not treated and considered as control. The experimental material was applied to the other twelve specimens by brushing for 10,000 strokes. Each group was randomly divided into four subgroups according to the period of immersion in phosphate buffer saline (PBS) for 1, 30, 60, and 90 days each. The specimens were sectioned longitudinally and examined with scanning electron microscopy and energy dispersion X-ray spectroscopy. The intratubular crystal were formed in PBS and densely filled the dentinal tubules over time. The crystal formation occurred at a depth of more than 50 μm from the dentin surface. The Ca/P ratio of formed intratubular crystals was 1.68 after 3 months. The experimental material consisting of C2S and C3S with a nanoscale particle size can form hydroxyapatite-like crystals in dentinal tubules in PBS, and there is a possibility of reducing dentin hypersensitivity by blocking the dentinal fluid flow.
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Affiliation(s)
- Mi-Jeong Jeon
- Department of Conservative Dentistry, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- Department of Conservative Dentistry, College of Dentistry, Gangnam Severance Hospital, Yonsei University, Seoul, Republic of Korea
| | - Jeong-Won Park
- Department of Conservative Dentistry, College of Dentistry, Gangnam Severance Hospital, Yonsei University, Seoul, Republic of Korea
| | - Deog-Gyu Seo
- Department of Conservative Dentistry, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.
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Woo HJ, Chung SJ, Hill ML, Hadrick K, Kim T. Europium-Doped Calcium Silicate Nanoparticles as High-Quantum-Yield Red-Emitting Phosphors. ACS APPLIED NANO MATERIALS 2023; 6:9884-9891. [PMID: 38572409 PMCID: PMC10985654 DOI: 10.1021/acsanm.3c01547] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/05/2023] [Indexed: 04/05/2024]
Abstract
Europium ion-activated calcium silicate phosphors (Ca2SiO4:Eu3+) with sharp red-light emission were fabricated via the hydrothermal method. The size of Ca2SiO4:Eu3+ phosphors was controlled between 20 and 200 nm by precursor silicate particle sizes. Systematic studies to determine morphology, crystal phase, and photoluminescence (PL) were carried out for all the phosphors, and their optical efficiencies were compared. We found that the luminescence intensity and emission wavelength of Ca2SiO4:Eu3+ phosphors depend on their particle sizes. Particularly, the Ca2SiO4:Eu3+ synthesized with 20 nm silica seed contains the most intense red emission, high color purity, and high PL quantum yield. For the 20 nm-sized Ca2SiO4:Eu3+ phosphor, PL quantum yields are measured to be above 87.95% and high color purity of 99.8%. The unusually high intensity of 5D0 → 7F4 emission (712 nm) is explained by structural distortion arising from silicate particle size reductions. We show that the obtained phosphor is a suitable candidate for solid-state lighting as a red component through CIE chromaticity coordinate and color purity measurements. Furthermore, the Ca2SiO4:Eu3+ particles are examined for their validity as promising bio-imaging probes through cell labeling and imaging experiments and biodegradability studies.
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Affiliation(s)
- Hyun-Joo Woo
- Department of Biomedical
Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - Seock-Jin Chung
- Department of Biomedical
Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - Meghan L. Hill
- Department of Biomedical
Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - Kay Hadrick
- Department of Biomedical
Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - Taeho Kim
- Department of Biomedical
Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
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Dsouza T, Shetty A, Kini S, Shetty V, Rao S, Payaradka R, Satheesan N, Dsouza N, Shetty H. Investigation of the hydration process and biological activity of a novel nanosilver incorporated dicalcium silicate based retrograde filling material. PeerJ 2023; 11:e14632. [PMID: 36748089 PMCID: PMC9899052 DOI: 10.7717/peerj.14632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/04/2022] [Indexed: 02/04/2023] Open
Abstract
Background Although several materials have been used for retrograde filling following apical surgeries, there is no consensus on a single best material. Tricalcium silicate-based types of cement have been developed as root-end filling materials mainly due to tricalcium silicate's hydraulic properties. However, its unfavorable setting characteristics and minimal antimicrobial properties have necessitated the introduction of new additives into the existing commercially available materials. To design an affordable product based on a dicalcium silicate with a shorter set time, minimal cytotoxic complications, and enhanced antibacterial activity, we developed a new endodontic cement from pure raw materials, intending to satisfy the prerequisites of ideal retrograde material. Methods The composition of the experimental calcium silicate-based cement included the addition of calcium chloride and silver nanoparticles in varying concentrations. Structural characterization was carried out using energy dispersive analysis by X-rays using scanning electron microscope (EDAX SEM) and hydration characteristics were performed using an X-ray diffractometer (XRD). The experimental material was further evaluated for biocompatibility using MTT ([3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide)assay and antibacterial activity was evaluated using an agar diffusion test against Enterococcus faecalis. Results The structural characterization and hydration characteristics revealed that the experimental cement was dicalcium silicate based with favorable biocompatibility and enhanced antibacterial activity. Tricalcium silicate based mineral trioxide aggregate (MTA) also had favourable biocompatibility, however, its antibacterial activity was significantly decreased when compared to the novel cement. Conclusion All hydraulic cements that are available in the dental market are predominantly tricalcium silicate-based materials. There has been no evidence in the literature to date wherein it has been explored whether a dicalcium silicate-based hydraulic cement can solely be used in root-end cavities. The findings of the study revealed a dicalcium silicate based retrograde filling material with favourable biocompatibility exhibited immediately as well as in the set samples. Incorporation of silver nanoparticles boosted the antibacterial activity when compared to that of ProRoot MTA. This material could potentially reinstate the usual hype created with tricalcium silicate types of cement since dicalcium silicate cements also exhibit similar properties.
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Affiliation(s)
- Teena Dsouza
- AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
| | - Aditya Shetty
- AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
| | - Sudarshan Kini
- Nitte University Centre for Science and Educational Research, Nitte (Deemed to be University), Mangalore, India
| | - Veena Shetty
- KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, India
| | - Shama Rao
- Texas A&M University, Texas, United States of America
| | - Rajesha Payaradka
- KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, India
| | - Nijil Satheesan
- Nitte University Centre for Science and Educational Research, Nitte (Deemed to be University), Mangalore, India
| | - Neevan Dsouza
- KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, India
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Zheng Y, Yang X, Liu S, Bao S, Xu Y, Wang Y, Zhang F, Gou Z. Fast self-curing α-tricalcium phosphate/β-dicalcium silicate composites beneficial for root canal sealing treatment. Heliyon 2022; 8:e10713. [PMID: 36177238 PMCID: PMC9513771 DOI: 10.1016/j.heliyon.2022.e10713] [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: 04/08/2022] [Revised: 06/07/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022] Open
Abstract
Objectives α-tricalcium phosphate (α-TCP) and β-dicalcium silicate (β-C2S) have attracted much attention since these two types of self-curing Ca-phosphate and Ca-silicate are valuable biomaterials for bone defect or endodontic therapy. However, the injectable paste of their individual with high liquid/solid ratio is junior for root canal sealing due to very long self-setting time, low pH value and/or much volume shrinkage during paste-to-cement transformation. Methods Our studies evaluated the effect of biphasic ratio, liquid/solid ratio and pH condition of aqueous medium on setting time and mechanical strength of this biphasic composite cement, and also the hydroxyapatite re-mineralization potential and anti-microleakage level of the cements with different α-TCP/β-C2S ratio were explored in vitro. A control group free of paste filler was included in the extracted teeth model. Dentine re-mineralization and microleakage degree were observed by scanning electron microscopy and microCT reconstruction analysis. Results It indicated that the weak acidic solution with pH value of 6.0 may produce a significantly shorter initial setting time (from 90 min to less 20 min) and expected final setting time (<150 min) for the biphasic composite (2:1 or 1:2) in comparison with the pure β-C2S. Notably, the phasic composites exhibited limited microleakage and induced hydroxyapatite mineralization in the dentine tubules. These hydraulic pastes also produced strong alkaline feature and appreciable compressive resistance (12–18 MPa) after setting for a very short time stage. Moreover, a link between the addition of α-TCP leading to fast re-mineralization reaction was established. Significance Our findings suggest that the appreciable self-setting and physicochemical properties adaption to root canal sealability make α-TCP/β-C2S composites as preferential candidates for endodontic treatments.
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Affiliation(s)
- Youyang Zheng
- Department of Stomatology, The Second Affiliated Hospital, School of Medicine Zhejiang University, Hangzhou 310009, China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China
| | - Shuxin Liu
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Siqi Bao
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yuyue Xu
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yunyi Wang
- Department of Stomatology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Feng Zhang
- Department of Stomatology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
- Corresponding author.
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China
- Corresponding author.
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Zheng Y, Yang X, Liu S, Xu Y, Bao S, Wang Y, Liu Y, Zhang F, Gou Z. Ball Milling Medium May Tune the Self-Curing Property and Root Canal Microleakage of β-Dicalcium Silicate-Based Cement. MATERIALS 2022; 15:ma15145043. [PMID: 35888510 PMCID: PMC9321766 DOI: 10.3390/ma15145043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/15/2022] [Accepted: 07/15/2022] [Indexed: 12/04/2022]
Abstract
It is still a challenge to overcome the extended setting process of pure Ca-silicate as root canal fillers. We investigated the effects of attapulgite (a basic hydrous silicate of magnesium and aluminum) and ball-milling liquid medium on the self-curing properties of conventional β-dicalcium silicate (C2Si)-based cements. It was shown that a minor amount of attapulgite nanofibers (1–4%) had only a slight influence on setting time but caused a large increase in compressive resistance and structural stability. In particular, the ball milling media with different acetone/water ratios (3:0, 2:1, 1:2, 0:3) could directly influence the particle size distribution of C2Si powders, and the co-existence of liquid media (2:1 or 1:2) may be beneficial for shortening the setting time, enhancing early-stage compressive strength, and significantly improving the anti-microleakage ability of cement. Moreover, the composite cements also exhibited appreciable antibacterial efficacy in vitro. These findings demonstrated that the physicochemical properties of the Ca-silicate powders could be tuned by adding a minor amount of inorganic silicate nanofibers and a simple ball milling condition, and such a facile strategy is favorable for developing novel (pre-mixed) Ca silicate-based cements as root canal sealers.
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Affiliation(s)
- Youyang Zheng
- Department of Stomatology, The Second Affiliated Hospital, School of Medicine Zhejiang University, Hangzhou 310009, China;
| | - Xianyan Yang
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China;
| | - Shuxin Liu
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China; (S.L.); (Y.X.); (S.B.)
| | - Yuyue Xu
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China; (S.L.); (Y.X.); (S.B.)
| | - Siqi Bao
- School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China; (S.L.); (Y.X.); (S.B.)
| | - Yunyi Wang
- Department of Stomatology, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China;
| | - Yuhan Liu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China;
| | - Feng Zhang
- Department of Stomatology, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China;
- Correspondence: (F.Z.); (Z.G.)
| | - Zhongru Gou
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China;
- Correspondence: (F.Z.); (Z.G.)
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Venkatraman SK, Swamiappan S. Review on calcium- and magnesium-based silicates for bone tissue engineering applications. J Biomed Mater Res A 2020; 108:1546-1562. [PMID: 32170908 DOI: 10.1002/jbm.a.36925] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 02/25/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022]
Abstract
Bone is a self-engineered structural component of the human body with multifaceted mechanical strength, which provides indomitable support to the effective functioning of the human body. It is indispensable to find a suitable biomaterial for substituting the bone as the bone substitute material requirement is very high due to the rate of bone fracture and infection lead to osteoporosis in human beings increases rapidly. It is not an easy task to design a material with good apatite deposition ability, a faster rate of dissolution, superior resorbability, high mechanical strength, and significant bactericidal activity. Since the synthetic hydroxyapatite was not able to achieve the dahlite phase of hydroxyapatite (natural bone mineral phase), silicates emerged as an alternate biomaterial to meet the need for bone graft substitutes. All silicates do not exhibit the properties required for bone graft substitutes, as their composition and methodology adopted for the synthesis are different. Calcium, magnesium, and silicon play a major role in the formation of bone mineral and their metabolism during bone formation. In this review, the relationship between composition and activity of calcium, magnesium-based silicates have been discussed along with the future scope of these materials for hard tissue engineering applications.
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Affiliation(s)
- Senthil Kumar Venkatraman
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Sasikumar Swamiappan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Zhang F, Zhou M, Gu W, Shen Z, Ma X, Lu F, Yang X, Zheng Y, Gou Z. Zinc-/copper-substituted dicalcium silicate cement: advanced biomaterials with enhanced osteogenesis and long-term antibacterial properties. J Mater Chem B 2020; 8:1060-1070. [PMID: 31939984 DOI: 10.1039/c9tb02691f] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The development of bioactive Ca-silicate-based cements which may simultaneously suppress infection is promising for periapical therapy or alveolar bone defect repair. While these treatments are usually effective in the short term, many of these cements have not been designed to have an affinity with dental tissue in a prolonged anti-infectious manner and are only high alkaline in the early stages. This can lead to less favorable long-term outcomes, such as in bone repair or secondary therapy. Inspired by the strong antibacterial activity of zinc and copper ions, we developed a nonstoichiometric dicalcium silicate (C2S) substituted by 5% or 10% Zn or Cu to endow it with appropriate multifunctions. It was found that the foreign ion substitution could inhibit free CaO content and increase the pH value in the initial ∼6 h. The C2S cement only showed antibacterial activity in the early stage (6-72 h), but the C2S displayed appreciable long-term antibacterial potential against P. aeruginosa, E. faecalis and E. coli (>6 h) and S. aureus (>72 h). Moreover, the enhanced new bone regeneration by Zn substitution in C2S was confirmed in a maxillofacial bone defect model in rabbits. The increases in new bone formation adjacent to C2S-10Zn and C2S after 16 weeks of implantation were 32% and 20%, respectively. And the Tb.N values in the C2S-10Zn and C2S-10Cu groups (∼5.7 and 4.9 mm-1) were over two-fold higher than in the C2S group (∼2.0 mm-1). It is considered that Zn- or Cu-substitution in C2S is promising for applications to infectious bone repair.
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Affiliation(s)
- Feng Zhang
- Department of Stomatology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China.
| | - Mingming Zhou
- Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Zheng Shen
- Center of Laboratory Testing, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Xiaohui Ma
- Department of Radiology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Fengling Lu
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Youyang Zheng
- Department of Stomatology, The Second Affiliated Hospital, Zhejiang University, School of Medicine, Hangzhou 310008, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
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Zhong W, Li X, Pathak JL, Chen L, Cao W, Zhu M, Luo Q, Wu A, Chen Y, Yi L, Ma M, Zhang Q. Dicalcium silicate microparticles modulate the differential expression of circRNAs and mRNAs in BMSCs and promote osteogenesis via circ_1983–miR-6931–Gas7 interaction. Biomater Sci 2020; 8:3664-3677. [PMID: 32463418 DOI: 10.1039/d0bm00459f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Among C2S-induced differentially expressed circRNAs, circ_1983 is involved in osteogenesis via circ_1983–miR-6931–Gas7 ceRNA interaction-mediated Runx2 upregulation.
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Strontium-Substituted Dicalcium Silicate Bone Cements with Enhanced Osteogenesis Potential for Orthopaedic Applications. MATERIALS 2019; 12:ma12142276. [PMID: 31311147 PMCID: PMC6678128 DOI: 10.3390/ma12142276] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/20/2022]
Abstract
Incorporating Sr element in biomaterials for bone implants is an effective way to improve their biological performance, as Sr element has been proved to enhance bone regeneration and depress bone resorption activity. In the present study, we developed a Sr-incorporated dicalcium silicate (C2S) bone cement as a potential candidate for bioactive self-setting bone cement in orthopaedics and stomatology. The Sr-C2S powders containing 0.3–6.8% Sr in molar ratio were prepared by means of chemical co-precipitation, and the results of XRD analysis indicated the incorporation of Sr element into the lattice of C2S. Sr-C2S bone cements, as prepared by mixing the powders with water, have a final setting time of 570 to 594 min, and compressive strength higher than that of C2S bone cement within certain incorporation range. The Sr-C2S bone cements possessed good in vitro bioactivity by inducing apatite formation in simulated body fluid (SBF) within 7 days. Moreover, the proliferation activity of human bone marrow mesenchymal stem cells (hBMSCs) with Sr-C2S bone cements was significantly higher than that with C2S bone cement, and the alkaline phosphatase (ALP) activity of hBMSCs was also enhanced with addition of Sr element in Sr-C2S groups. The Sr-C2S might therefore be a bioactive self-setting material with enhanced biological performance and holds the prospect for application in the bone regeneration area.
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Huang TH, Kao CT, Shen YF, Lin YT, Liu YT, Yen SY, Ho CC. Substitutions of strontium in bioactive calcium silicate bone cements stimulate osteogenic differentiation in human mesenchymal stem cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:68. [PMID: 31165270 DOI: 10.1007/s10856-019-6274-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
Calcium silicate cements have been considered as alternative bone substitutes owing to its extraordinary bioactivity and osteogenicity. Unfortunately, the major disadvantage of the cements was the slow degradation rate which may limit the efficiency of bone regeneration. In this study, we proposed a facile method to synthesize degradable calcium silicate cements by incorporating strontium into the cements through solid-state sintering. The effects of Sr incorporation on physicochemical and biological properties of the cements were evaluated. Although, our findings revealed that the incorporation of strontium retarded the hardening reaction of the cements, the setting time of different cements (11-19 min) were in the acceptable range for clinical use. The presence of Sr in the CS cements would hampered the precipitation of calcium phosphate products on the surface after immersion in SBF, however, a layer of precipitated calcium phosphate products can be formed on the surface of the Sr-CS cement within 1 day immersion in SBF. More importantly, the degradation rate of the cements increased with increasing content of strontium, consequentially raised the levels of released strontium and silicon ions. The elevated dissolving products may contribute to the enhancement of the cytocompatibility, alkaline phosphatase activity, osteocalcin secretion, and mineralization of human Wharton's jelly mesenchymal stem cells. Together, it is concluded that the strontium-incorporated calcium silicate cement might be a promising bone substitute that could accelerate the regeneration of irregularly shaped bone defects.
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Affiliation(s)
- Tsui-Hsien Huang
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung City, Taiwan
| | - Chia-Tze Kao
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung City, Taiwan
| | - Yu-Fang Shen
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
- 3D Printing Medical Research Institute, Asia University, Taichung City, Taiwan
| | - Yi-Ting Lin
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan
| | - Yen-Ting Liu
- School of Medicine, China Medical University, Taichung City, Taiwan
| | - Ssu-Yin Yen
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan.
| | - Chia-Che Ho
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan.
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Tang J, Cao W, Zhang Y, Luan J, Jiang F, Zhou X, Li M. Properties of vaterite-containing tricalcium silicate composited graphene oxide for biomaterials. Biomed Mater 2019; 14:045004. [DOI: 10.1088/1748-605x/ab0de3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Ghamor‐Amegavi EP, Yang X, Qiu J, Xie L, Pan Z, Wang J, Zhang X, Ke X, Zhao T, Zhang L, Gou Z. Composition control in biphasic silicate microspheres on stimulating new bone regeneration and repair of osteoporotic femoral bone defect. J Biomed Mater Res B Appl Biomater 2019; 108:377-390. [PMID: 31037822 DOI: 10.1002/jbm.b.34396] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 04/09/2019] [Accepted: 04/17/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Edem P. Ghamor‐Amegavi
- Department of Orthopedic Surgerythe Second Affiliated Hospital, Zhejiang University School of Medicine Hangzhou China
- Orthopedics Research InstituteZhejiang University Hangzhou China
| | - Xianyan Yang
- Bio‐Nanomaterials and Regenerative Medicine Research DivisionZhejiang‐California International Nanosystem Institute, Zhejiang University Hangzhou China
| | - Jiandi Qiu
- Department of Orthopaedic Surgerythe 3rd Hospital Affiliated to Wenzhou Medical College Rui'an China
| | - Lijun Xie
- Department of Orthopedic Surgerythe Second Affiliated Hospital, Zhejiang University School of Medicine Hangzhou China
- Orthopedics Research InstituteZhejiang University Hangzhou China
| | - Zhijun Pan
- Department of Orthopedic Surgerythe Second Affiliated Hospital, Zhejiang University School of Medicine Hangzhou China
- Orthopedics Research InstituteZhejiang University Hangzhou China
| | - Juncheng Wang
- Department of Orthopaedic Surgerythe 3rd Hospital Affiliated to Wenzhou Medical College Rui'an China
| | - Xiangfeng Zhang
- Department of Orthopedic Surgerythe Second Affiliated Hospital, Zhejiang University School of Medicine Hangzhou China
- Orthopedics Research InstituteZhejiang University Hangzhou China
| | - Xiurong Ke
- Department of Orthopaedic Surgerythe 3rd Hospital Affiliated to Wenzhou Medical College Rui'an China
| | - Tengfei Zhao
- Department of Orthopedic Surgerythe Second Affiliated Hospital, Zhejiang University School of Medicine Hangzhou China
- Orthopedics Research InstituteZhejiang University Hangzhou China
| | - Lei Zhang
- Department of Orthopaedic Surgerythe 3rd Hospital Affiliated to Wenzhou Medical College Rui'an China
| | - Zhongru Gou
- Bio‐Nanomaterials and Regenerative Medicine Research DivisionZhejiang‐California International Nanosystem Institute, Zhejiang University Hangzhou China
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14
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Ji M, Ding Z, Chen H, Peng H, Yan Y. Design of novel organic–inorganic composite bone cements with high compressive strength,
in vitro
bioactivity and cytocompatibility. J Biomed Mater Res B Appl Biomater 2019; 107:2365-2377. [DOI: 10.1002/jbm.b.34330] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/26/2018] [Accepted: 01/13/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Mizhi Ji
- College of Physical Science and TechnologySichuan University Chengdu Sichuan, 610065 China
| | - Zhengwen Ding
- College of Physical Science and TechnologySichuan University Chengdu Sichuan, 610065 China
| | - Hong Chen
- College of Physical Science and TechnologySichuan University Chengdu Sichuan, 610065 China
| | - Haitao Peng
- College of Physical Science and TechnologySichuan University Chengdu Sichuan, 610065 China
| | - Yonggang Yan
- College of Physical Science and TechnologySichuan University Chengdu Sichuan, 610065 China
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15
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WU T, XU C, DU R, WEN Y, CHANG J, HUAN Z, ZHU Y. Effects of silicate-based composite material on the proliferation and mineralization behaviors of human dental pulp cells: An in vitro assessment. Dent Mater J 2018; 37:889-896. [DOI: 10.4012/dmj.2017-328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Tiantian WU
- Department of General Dentistry, Ninth hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology
| | - Chen XU
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences
| | - Rong DU
- Department of General Dentistry, Ninth hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology
| | - Yang WEN
- Department of General Dentistry, Ninth hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology
| | - Jiang CHANG
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences
| | - Zhiguang HUAN
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences
| | - Yaqin ZHU
- Department of General Dentistry, Ninth hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology
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16
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Cao W, Peng Y, Zhang Y, Qiu F, Li M, Tang J, Wu Z. Novel bone wax based on tricalcium silicate cement and BGs mixtures. Biomed Mater 2018; 13:065001. [DOI: 10.1088/1748-605x/aad73c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Fu S, Liu W, Liu S, Zhao S, Zhu Y. 3D printed porous β-Ca 2SiO 4 scaffolds derived from preceramic resin and their physicochemical and biological properties. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:495-506. [PMID: 30034559 PMCID: PMC6052414 DOI: 10.1080/14686996.2018.1471653] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/28/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
Silicate bioceramic scaffolds are of great interest in bone tissue engineering, but the fabrication of silicate bioceramic scaffolds with complex geometries is still challenging. In this study, three-dimensional (3D) porous β-Ca2SiO4 scaffolds have been successfully fabricated from preceramic resin loaded with CaCO3 active filler by 3D printing. The fabricated β-Ca2SiO4 scaffolds had uniform interconnected macropores (ca. 400 μm), high porosity (>78%), enhanced mechanical strength (ca. 5.2 MPa), and excellent apatite mineralization ability. Importantly, the results showed that the increase of sintering temperature significantly enhanced the compressive strength and the scaffolds sintered at higher sintering temperature stimulated the adhesion, proliferation, alkaline phosphatase activity, and osteogenic-related gene expression of rat bone mesenchymal stem cells. Therefore, the 3D printed β-Ca2SiO4 scaffolds derived from preceramic resin and CaCO3 active fillers would be promising candidates for bone tissue engineering.
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Affiliation(s)
- Shengyang Fu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Wei Liu
- Department of Orthopedics, Shanghai Sixth People’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Shiwei Liu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Shichang Zhao
- Department of Orthopedics, Shanghai Sixth People’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yufang Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Innovation Institute for Materials, Shanghai, P. R. China
- Hubei Key Laboratory of Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang City, Hubei Province, China
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18
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Du X, Fu S, Zhu Y. 3D printing of ceramic-based scaffolds for bone tissue engineering: an overview. J Mater Chem B 2018; 6:4397-4412. [PMID: 32254656 DOI: 10.1039/c8tb00677f] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Currently, one of the most promising strategies in bone tissue engineering focuses on the development of biomimetic scaffolds. Ceramic-based scaffolds with favorable osteogenic ability and mechanical properties are promising candidates for bone repair. Three-dimensional (3D) printing is an additive manufacturing technique, which allows the fabrication of patient-specific scaffolds with high structural complexity and design flexibility, and gains growing attention. This review aims to highlight advances in 3D printing of ceramic-based scaffolds for bone tissue engineering. Technical limitations and practical challenges are emphasized and design considerations are also discussed.
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Affiliation(s)
- Xiaoyu Du
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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19
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Ding Z, Li H, Wei J, Li R, Yan Y. Developing a novel magnesium glycerophosphate/silicate-based organic-inorganic composite cement for bone repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 87:104-111. [DOI: 10.1016/j.msec.2018.03.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 12/11/2017] [Accepted: 03/01/2018] [Indexed: 02/06/2023]
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20
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Shu Y, Qiu F, Zhang Y, Cao W, Wu Z, Nian S, Zhou N. Novel vaterite-containing tricalcium silicate bone cement by surface functionalization using 3-aminopropyltriethoxysilane: setting behavior, in vitro bioactivity and cytocompatibility. ACTA ACUST UNITED AC 2017; 12:065007. [PMID: 28784935 DOI: 10.1088/1748-605x/aa84b8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A novel vaterite-containing tricalcium silicate (V-C3S) was grafted by 3-aminopropyltriethoxysilane (APTES), and the amino groups have been successfully fixed on the vaterite-containing tricalcium silicate powder's surface (after grafting the amino group, V-C3S was named A-V-C3S). The setting behavior, mechanical properties, porosity, weight loss and anti-washout properties of the tricalcium silicate (C3S), V-C3S and A-V-C3S bone cement were systematically investigated. The in vitro induction of hydroxyapatite (HAp) formation of C3S, V-C3S and A-V-C3S bone cement was confirmed by x-ray diffraction, Fourier-transform infrared spectroscopy and scanning electron microscopy. The cell viability, cell proliferation and cell attachment were investigated to assess the effects of bone cement on MC3T3-E1 cells. Results showed that the setting time of A-V-C3S bone cement can meet the requirements of a clinical test, with improved anti-washout properties and an appropriate degradation rate. The pH value of the soaking solution was obviously decreased by surface modification. Besides, the morphology and fluorescence photograph results revealed that the A-V-C3S bone cement showed an enhanced biocompatibility effect on the proliferation and attachment of MC3T3-E1 cells. The A-V-C3S bone cement was expected to be a potential bone-substitute material.
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Affiliation(s)
- Yan Shu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, People's Republic of China
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21
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SAGHIRI MA, ORANGI J, ASATOURIAN A, GUTMANN JL, Garcia-Godoy F, LOTFI M, SHEIBANI N. Calcium silicate-based cements and functional impacts of various constituents. Dent Mater J 2017; 36:8-18. [PMID: 27773894 PMCID: PMC5293667 DOI: 10.4012/dmj.2015-425] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Calcium silicate-based cements have superior sealing ability, bioactivity, and marginal adaptation, which make them suitable for different dental treatment applications. However, they exhibit some drawbacks such as long setting time and poor handling characteristics. To overcome these limitations calcium silicates are engineered with various constituents to improve specific characteristics of the base material, and are the focus of this review. An electronic search of the PubMed, MEDLINE, and EMBASE via OVID databases using appropriate terms and keywords related to the use, application, and properties of calcium silicate-based cements was conducted. Two independent reviewers obtained and analyzed the full texts of the selected articles. Although the effects of various constituents and additives to the base Portland cement-like materials have been investigated, there is no one particular ingredient that stands out as being most important. Applying nanotechnology and new synthesis methods for powders most positively affected the cement properties.
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Affiliation(s)
- Mohammad Ali SAGHIRI
- Department of Ophthalmology and Visual Sciences, and McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jafar ORANGI
- Department of Materials Science and Engineering, Auburn University, Auburn, AL, USA
- Sector of Angiogenesis and Regenerative Surgery, Dr. H Afsar Lajevardi Cluster, Shiraz, Iran
| | - Armen ASATOURIAN
- Sector of Angiogenesis and Regenerative Surgery, Dr. H Afsar Lajevardi Cluster, Shiraz, Iran
| | - James L. GUTMANN
- Department of Restorative Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Franklin Garcia-Godoy
- Bioscience Research Center, Health Science Center, College of Dentistry, University of Tennessee, Memphis, TN, USA
| | - Mehrdad LOTFI
- Sector of Angiogenesis and Regenerative Surgery, Dr. H Afsar Lajevardi Cluster, Shiraz, Iran
- Research Center for Pharmaceutical Nanotechnology and Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz, Iran
| | - Nader SHEIBANI
- Department of Ophthalmology and Visual Sciences, Biomedical Engineering, and McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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22
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Affiliation(s)
- Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Xiao-Xuan Guo
- Department of Chemistry, University of Western Ontario, London, ON, Canada
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, London, ON, Canada
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23
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Razmi H, Bolhari B, Karamzadeh Dashti N, Fazlyab M. The Effect of Canal Dryness on Bond Strength of Bioceramic and Epoxy-resin Sealers after Irrigation with Sodium Hypochlorite or Chlorhexidine. IRANIAN ENDODONTIC JOURNAL 2016; 11:129-33. [PMID: 27141222 PMCID: PMC4841349 DOI: 10.7508/iej.2016.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 01/21/2016] [Accepted: 02/08/2016] [Indexed: 11/30/2022]
Abstract
Introduction: The aim of this in vitro study was to evaluate the effect of canal dryness on the push-out bond strength of two resin sealers (AH-Plus and Adseal) and a bioceramic sealer (Endosequence BC sealer) after canal irrigation with sodium hypochlorite (NaOCl) and chlorhexidine (CHX). Methods and Materials: A total of 18 extracted human premolars were used. Canals were prepared and were divided to two groups based on irrigation solution (either NaOCl or CHX). The samples were again divided based on pre-obturation canal condition (wet, half-wet and dry). The samples were sub-divided into 3 groups based on the sealer type; the teeth were obturated with gutta-percha and test sealers (Adseal, AH-Plus or BC sealer). A total number of 18 groups were available to be cut into dentine disks (12 disks in each group). The type of bond failure was also assessed in each group. Data were analyzed using the 3-way ANOVA, post hoc Tukey’s tests, t-test and the Fisher’s exact test. The level of significance was set at 0.05. Results: The bond strength of Adseal was not affected by the canal condition or irrigation with either NaOCl or CHX. Although the bond strength of AH-Plus was not affected by the irrigant type, the highest bond strength was seen in dry canals. For Endosequence BC sealer, the canal conditions did not affect the bond strength; however, CHX reduced the bond strength. Conclusion: Bond strength of resin sealers was not affected by irrigation solution; however, canal moisture negatively affected the bond strength of AH-Plus. CHX reduced the bond strength of BC sealer.
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Affiliation(s)
- Hasan Razmi
- Department of Endodontics, Dental School, Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnam Bolhari
- Department of Endodontics, Dental School, Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahta Fazlyab
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran and Department of Endodontics, Dental Branch, Islamic Azad University, Tehran, Iran
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24
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Chen L, Zhang Y, Liu J, Wei L, Song B, Shao L. Exposure of the murine RAW 264.7 macrophage cell line to dicalcium silicate coating: assessment of cytotoxicity and pro-inflammatory effects. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:59. [PMID: 26800690 DOI: 10.1007/s10856-016-5668-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 01/08/2016] [Indexed: 06/05/2023]
Abstract
Inflammatory effects are significant elements of the immune response to biomaterials. Previously, we reported inflammatory effects in response to dicalcium silicate (Ca2SiO4, C2S) particles. However, the immunological effects of C2S coatings have not been studied. C2S often used as coatings materials in orthopedic and dentistry applications. It may have different effect from C2S particles. Further, it remains unclear whether C2S coating is equally biocompatible as 45S5 coating. The aim of this study was to test the cytotoxicity and pro-inflammatory effects of C2S coating on RAW 264.7 macrophages. C2S and 45S5 coatings were characterized using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive analysis (EDS) and X-ray diffraction (XRD). inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to detect ionic concentrations after soaking coated discs in medium. The cytotoxicity of C2S and 45S5 coatings against RAW 264.7 macrophages was measured using the LDH Cytotoxicity Assay Kit, Cell Counting Kit-8 (CCK-8) assays and flow cytometry for apoptosis assays. The gene and protein expression of TNF-α, IL-6 and IL-1β were detected using RT-q PCR and ELISA, respectively. The tested coating materials are not cytotoxic to macrophages. The C2S-coated surface stimulated macrophages to express pro-inflammatory mediators, such as TNF-α, IL-6 and IL-1β, and C2S coating caused less IL-6 but greater IL-1β production than the 45S5 coating. C2S coating have no cytotoxicity when directly cultured with macrophages. C2S and 45S5 coatings both have the potential to induce pro-inflammatory effects, and the biocompatibility of C2S is similar to that of 45S5.
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Affiliation(s)
- Liangjiao Chen
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, 510140, People's Republic of China
| | - Yanli Zhang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, People's Republic of China
| | - Jia Liu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, People's Republic of China
| | - Limin Wei
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, People's Republic of China
| | - Bin Song
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, People's Republic of China
| | - Longquan Shao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, People's Republic of China.
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25
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Zhang F, Yang X, Zhuang C, Wang L, Gu XH, Shen Z, Xu S, Gao C, Gou Z. Design and evaluation of multifunctional antibacterial ion-doped β-dicalcium silicate cements favorable for root canal sealing. RSC Adv 2016. [DOI: 10.1039/c6ra00172f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cu or Zn-doping dicalcium silicate-based cements exhibit multifunctional physiochemical and biological performances and meet some challenging criteria in root canal treatment.
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Affiliation(s)
- Feng Zhang
- Department of Stomatology
- Children's Hospital
- School of Medicine of Zhejiang University
- Hangzhou 310003
- China
| | - Xianyan Yang
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058
- China
| | - Chen Zhuang
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310058
- China
| | - Lin Wang
- Department of Stomatology
- The First Affiliated Hospital
- School of Medicine of Zhejiang University
- Hangzhou 310009
- China
| | - Xin-Hua Gu
- Department of Stomatology
- The First Affiliated Hospital
- School of Medicine of Zhejiang University
- Hangzhou 310009
- China
| | - Zheng Shen
- Lab Center Children's Hospital
- School of Medicine of Zhejiang University
- Hangzhou 310003
- China
| | - Sanzhong Xu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital
- School of Medicine of Zhejiang University
- Hangzhou 310009
- 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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26
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Sun M, Liu A, Ma C, Shao H, Yu M, Liu Y, Yan S, Gou Z. Systematic investigation of β-dicalcium silicate-based bone cements in vitro and in vivo in comparison with clinically applied calcium phosphate cement and Bio-Oss®. RSC Adv 2016. [DOI: 10.1039/c5ra21340a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Herein we systematically investigated the biological performance of a β-dicalcium silicate (β-C2S)-based bone cement in comparison with the clinically used calcium phosphate cement (CPC) and Bio-Oss®.
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Affiliation(s)
- Miao Sun
- Department of Oral and Maxillofacial Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310009
| | - An Liu
- Department of Orthopaedic Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou
| | - Chiyuan Ma
- Department of Orthopaedic Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou
| | - Huifeng Shao
- The State Key Lab of Fluid Power Transmission and Control Systems
- College of Mechanical Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Menghua Yu
- Department of Oral and Maxillofacial Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310009
| | - Yanming Liu
- Department of Oral and Maxillofacial Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310009
| | - Shigui Yan
- Department of Orthopaedic Surgery
- Second Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou
| | - Zhongru Gou
- Zhejiang-California International Nanosystems Institute
- Zhejiang University
- Hangzhou 310029
- China
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27
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Novel tricalcium silicate/magnesium phosphate composite bone cement having high compressive strength, in vitro bioactivity and cytocompatibility. Acta Biomater 2015; 21:217-27. [PMID: 25890099 DOI: 10.1016/j.actbio.2015.04.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/23/2015] [Accepted: 04/02/2015] [Indexed: 11/21/2022]
Abstract
Although inorganic bone cements such as calcium phosphate cements have been widely applied in orthopaedic and dental fields because of their self-setting ability, development of high-strength bone cement with bioactivity and biodegradability remains a major challenge. Therefore, the purpose of this study is to prepare a tricalcium silicate/magnesium phosphate (C3S/MPC) composite bone cement, which is intended to combine the excellent bioactivity of C3S with remarkable self-setting properties and mechanical strength of MPC. The self-setting and mechanical properties, in vitro induction of apatite formation and degradation behaviour, and cytocompatibility of the composite cements were investigated. Our results showed that the C3S/MPC composite cement with an optimal composition had compressive strength up to 87 MPa, which was significantly higher than C3S (25 MPa) and MPC (64 MPa). The setting time could be adjusted between 3 min and 29 min with the variation of compositions. The hydraulic reaction products of the C3S/MPC composite cement were composed of calcium silicate hydrate (CSH) derived from the hydration of C3S and gel-like amorphous substance. The C3S/MPC composite cements could induce apatite mineralization on its surface in SBF solution and degraded gradually in Tris-HCl solution. Besides, the composite cements showed good cytocompatibility and stimulatory effect on the proliferation of MC3T3-E1 osteoblast cells. Our results indicated that the C3S/MPC composite bone cement might be a new promising high-strength inorganic bioactive material which may hold the potential for bone repair in load-bearing site.
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28
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Liangjiao C, Ping Z, Ruoyu L, Yanli Z, Ting S, Yanjun L, Longquan S. Potential proinflammatory and osteogenic effects of dicalcium silicate particles in vitro. J Mech Behav Biomed Mater 2014; 44:10-22. [PMID: 25594366 DOI: 10.1016/j.jmbbm.2014.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 12/09/2014] [Accepted: 12/10/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Due to their biocompatibility and bioactivity, dicalcium silicate (C2S) and hydroxyapatite (HA) are used as coating materials for prosthetic orthopedic and dental implants or as bone substitute materials to fill bone defects. However, prostheses and bone substitutes can release particles that trigger an immune response in the recipient. The immunological effects of C2S particles have not yet been studied. OBJECTIVE The aim of this study was to determine the cytotoxic effects of C2S particles on primary human monocytes, a human monocyte cell line (THP-1) and an osteoblast-like cell line (MG-63). The proinflammatory effects of C2S particles on THP-1 were also detected. Moreover, the osteogenic effects of C2S and HA on MG-63 cells were investigated. METHODS Characterization of C2S and HA was performed using scanning electron microscopy (SEM), energy dispersive analysis (EDS), X-ray diffraction (XRD), Brunner-Emmett-Teller (BET) measurements and laser diffraction. The cytotoxic effect of C2S on primary human monocytes as well as THP-1 and MG-63 cells was measured using Trypan blue assays, Cell Counting Kit-8 (CCK-8) assays and flow cytometry to detect apoptosis. THP-1 human monocytes with or without lipopolysaccharide (LPS) stimulation were exposed to C2S and HA for 6 and 24h. Thereafter, the mRNA expression and protein concentrations of MMP-2, MMP-9, TIMP-2, TIMP-1 and TNF-α were evaluated using real-time PCR and ELISA, respectively. RANKL and OPG mRNA expression levels in MG-63 cells were examined using real-time PCR. RESULTS No significant cytotoxicity was recorded when cells were directly cultured with C2S/HA particles. After THP-1 cells were cultured with C2S/HA for 24h, MMP-2, MMP-9 and TNF-α expression increased, whereas TIMP-2 and TIMP-1 expression decreased. Compared with HA, C2S slightly increased MMP-9 expression and slightly decreased TIMP-1 expression. The MMP: TIMP ratio increased in the C2S and HA groups; however, HA significantly increased the MMP-9: TIMP-1 ratio compared with C2S. Compared with HA, C2S caused less TNF-α production. C2S/HA did not modify the expression of proinflammatory mediators in LPS-stimulated cells. Furthermore, C2S/HA significantly increased OPG expression and slightly increased RANKL expression in MG-63 cells. C2S and HA decreased the RANKL: OPG ratio. CONCLUSION Our in vitro data suggest that C2S is relatively safe when directly cultured with cells. In addition, C2S may exert proinflammatory effects; however, compared with HA, C2S had fewer proinflammatory effects on THP-1. C2S and HA did not alter the LPS-induced production of proinflammatory mediators and had similar osteogenic effects on MG-63 cells.
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Affiliation(s)
- Chen Liangjiao
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhu Ping
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Liu Ruoyu
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhang Yanli
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Sun Ting
- The Medical Centre of Stomatology, the 1st Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Liu Yanjun
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Shao Longquan
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Niu LN, Jiao K, Wang TD, Zhang W, Camilleri J, Bergeron BE, Feng HL, Mao J, Chen JH, Pashley DH, Tay FR. A review of the bioactivity of hydraulic calcium silicate cements. J Dent 2014; 42:517-33. [PMID: 24440449 PMCID: PMC3995854 DOI: 10.1016/j.jdent.2013.12.015] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 12/30/2013] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES In tissue regeneration research, the term "bioactivity" was initially used to describe the resistance to removal of a biomaterial from host tissues after intraosseous implantation. Hydraulic calcium silicate cements (HCSCs) are putatively accepted as bioactive materials, as exemplified by the increasing number of publications reporting that these cements produce an apatite-rich surface layer after they contact simulated body fluids. METHODS In this review, the same definitions employed for establishing in vitro and in vivo bioactivity in glass-ceramics, and the proposed mechanisms involved in these phenomena are used as blueprints for investigating whether HCSCs are bioactive. RESULTS The literature abounds with evidence that HCSCs exhibit in vitro bioactivity; however, there is a general lack of stringent methodologies for characterizing the calcium phosphate phases precipitated on HCSCs. Although in vivo bioactivity has been demonstrated for some HCSCs, a fibrous connective tissue layer is frequently identified along the bone-cement interface that is reminiscent of the responses observed in bioinert materials, without accompanying clarifications to account for such observations. CONCLUSIONS As bone-bonding is not predictably achieved, there is insufficient scientific evidence to substantiate that HCSCs are indeed bioactive. Objective appraisal criteria should be developed for more accurately defining the bioactivity profiles of HCSCs designed for clinical use.
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Affiliation(s)
- Li-Na Niu
- Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Kai Jiao
- Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Tian-da Wang
- Department of Prosthodontics, School of Stomatology, Peking University, Beijing, China
| | - Wei Zhang
- Department of Stomatology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Josette Camilleri
- Department of Restorative Dentistry, Faculty of Dental Surgery, University of Malta, Malta
| | - Brian E Bergeron
- Department of Endodontics, College of Dental Medicine, Georgia Regents University, Augusta, GA, USA
| | - Hai-Lan Feng
- Department of Prosthodontics, School of Stomatology, Peking University, Beijing, China
| | - Jing Mao
- Department of Stomatology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Ji-Hua Chen
- Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China.
| | - David H Pashley
- College of Graduate Studies, Georgia Regents University, Augusta, GA, USA
| | - Franklin R Tay
- Department of Endodontics, College of Dental Medicine, Georgia Regents University, Augusta, GA, USA; College of Graduate Studies, Georgia Regents University, Augusta, GA, USA.
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Tan Y, Liu Y, Zhao Z, Paxton JZ, Grover LM. Synthesis andin vitrodegradation of a novel magnesium oxychloride cement. J Biomed Mater Res A 2014; 103:194-202. [DOI: 10.1002/jbm.a.35166] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 03/05/2014] [Accepted: 03/10/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Yanni Tan
- State Key Laboratory of Powder Metallurgy; Central South University; Changsha Hunan 410083 People's Republic of China
- School of Metallurgy and Environment, Central South University; Changsha Hunan 410083 People's Republic of China
| | - Yong Liu
- State Key Laboratory of Powder Metallurgy; Central South University; Changsha Hunan 410083 People's Republic of China
| | - Zhongwei Zhao
- School of Metallurgy and Environment, Central South University; Changsha Hunan 410083 People's Republic of China
| | - Jennifer Z. Paxton
- School of Chemical Engineering, University of Birmingham; Birmingham B15 2TT United Kingdom
| | - Liam M. Grover
- School of Chemical Engineering, University of Birmingham; Birmingham B15 2TT United Kingdom
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Zhang X, Li XW, Li JG, Sun XD. Preparation and characterizations of bioglass ceramic cement/Ca-P coating on pure magnesium for biomedical applications. ACS APPLIED MATERIALS & INTERFACES 2014; 6:513-525. [PMID: 24295089 DOI: 10.1021/am404574t] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Magnesium has been recently recognized as a biodegradable metal for bone substitute applications. In order to improve the biocompatibility and osteointegration of pure Mg, two kinds of coatings, i.e., the Ca-P coating and bioglass ceramic cement (BGCC)/Ca-P coating, were prepared on the pure Mg ribbons in the present work. The Ca-P coating was obtained by aqueous solution method. Subsequently, Ca-P coated Mg was immersed into the BGCC slurry, which was prepared by the mix of SiO2-CaO-P2O5 bioglass ceramic (BGC) powders and phosphate liquid with a liquid-to-solid ratio (L/S) of 1.6, to obtain BGCC/Ca-P coating by a dipping-pulling method. The microstructures, morphologies, and compositions of these coatings have been characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS). The effect of these coatings on the mineralization activity of pure Mg has been investigated. The results indicated that both the Ca-P coating and BGCC/Ca-P coating could promote the nucleation of osteoconductive minerals, i.e., bone-like apatite, and the hydroxyapatite (HA) layer formed on the surface of the BGCC/Ca-P coating is obviously more dense, thick, and stable than that formed on the Ca-P coating after immersion in SBF solution for 15 days. The potentiodynamic polarization test indicated that the corrosion current density of the BGCC/Ca-P coated Mg is obviously lower than that of the Ca-P coating and 10 times lower than that of uncoated Mg. These results demonstrated that the BGCC/Ca-P coating can increase significantly the corrosion resistance of Mg and introduce a high biocompatibility of the bone-Mg substrate interface. In summary, the newly developed BGCC/Ca-P coated Mg has a good potential for biomedical applications.
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Affiliation(s)
- Xue Zhang
- Institute of Materials Physics and Chemistry, College of Sciences, Northeastern University , Shenyang 110819, P. R. China
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Lin M, Zhang L, Wang J, Chen X, Yang X, Cui W, Zhang W, Yang G, Liu M, Zhao Y, Gao C, Gou Z. Novel highly bioactive and biodegradable gypsum/calcium silicate composite bone cements: from physicochemical characteristics to in vivo aspects. J Mater Chem B 2014; 2:2030-2038. [DOI: 10.1039/c3tb21786h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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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Ersahan S, Aydin C. Solubility and apical sealing characteristics of a new calcium silicate-based root canal sealer in comparison to calcium hydroxide-, methacrylate resin- and epoxy resin-based sealers. Acta Odontol Scand 2013; 71:857-62. [PMID: 23088627 DOI: 10.3109/00016357.2012.734410] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To assess and compare the water sorption, solubility and apical sealing ability of iRoot SP and three other widely used root canal sealers. MATERIALS AND METHODS Solubility was assessed by immersing standardized samples of calcium silicate- (iRoot SP), calcium hydroxide- (Sealapex), methacrylate resin- (EndoREZ) and epoxy resin- (AH Plus) based sealers in distilled water and measuring weight gain and weight loss at 6 h, 24 h and daily for 14 days. Roots of extracted mandibular premolars (n = 80) were prepared with 0.04-taper nickel-titanium rotary files to a final size 40. Roots were then randomly divided into four experimental groups (n = 18) and two control groups (n = 4), root canal sealers were applied and apical leakage was assessed using the fluid filtration method. Data was analyzed using Kruskal Wallis analysis of variance and Mann-Whitney U-tests, with the level of significance set at p ≤ 0.05. RESULTS EndoREZ exhibited the highest water sorption, followed by iRoot SP, Sealapex and AH Plus. Sealapex exhibited significantly higher solubility than the other sealers, whereas no significant differences in solubility levels were observed between the other three sealers tested. AH Plus exhibited significantly lower microleakage than Sealapex and EndoREZ, whereas no difference in microleakage was found between AH Plus and iRoot SP. CONCLUSIONS In view of the study findings, all tested sealers except Sealapex met the ANSI/ADA's requirements for solubility and no difference was found between AH Plus and iRoot SP in terms of apical sealing ability.
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Affiliation(s)
- Seyda Ersahan
- Department of Endodontics, Center for Dental Sciences, Gulhane School of Medicine, Ankara, Turkey
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36
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Wang L, Wang Y, Qu J, Hu Y, You R, Li M. The Cytocompatibility of Genipin-Crosslinked Silk Fibroin Films. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jbnb.2013.43026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Paul ML, Mazumdar D, Vyavahare NK, Baranwal AK. Healing of the periapical lesion in posterior teeth with mineral trioxide aggregate using orthograde technique - Two case reports. Contemp Clin Dent 2012; 3:S264-8. [PMID: 23230378 PMCID: PMC3514935 DOI: 10.4103/0976-237x.101111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Conventional root canal treatment (RCT) of the teeth has long shown high success rate. However, the endodontic treatment of a pulpless tooth with periapical radiolucency of a considerable size always has a question of success. In modern days, surgical exploration is avoided, especially in the posterior teeth. These types of cases may be successfully managed by orthograde Mineral Trioxide Aggregate (MTA) placement in the apical third of the root followed by proper obturation. The objective of our present case reports was to evaluate the periapical pathology of posterior teeth clinically and radiographically by using MTA in orthograde way and avoiding traumatic surgical exploration. In the first case, the patient reported with intraoral sinus and pus discharge related to tooth #45. On radiograph, open apex (blunderbuss) was found along with periapical radiolucency. In the second case, the patient reported with pain and swelling related to tooth #26, having large periapical radiolucency related to the palatal canal. On vitality test, both the teeth responded negative, i.e., non-vital. Conventional RCT was planned in both the cases with orthograde MTA- Angelus (Angelus, Londrina, PR, Brazil) apical plug followed by the proper obturation with gutta-percha (G.P.), and after that the patients were kept on periodic follow-up and the outcome-based clinical and radiographic criteria were assessed. The post-obturation assessment at 1-month interval showed changes in the size of radiolucency with a gradual decrease, and after 6 months a remarkable decrease of radiolucency or the defect was almost filled with bone formation visible around the roots.
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Affiliation(s)
- Mohan L Paul
- Department of Conservative Dentistry and Endodontics, Dr. R. Ahmed Dental College and Hospital, Kolkata, West Bengal, India
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Liu W, Wu C, Liu W, Zhai W, Chang J. The effect of plaster (CaSO4·1/2H2O) on the compressive strength, self-setting property, and in vitro bioactivity of silicate-based bone cement. J Biomed Mater Res B Appl Biomater 2012; 101:279-86. [DOI: 10.1002/jbm.b.32837] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 09/13/2012] [Accepted: 09/25/2012] [Indexed: 11/09/2022]
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39
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Shokouhinejad N, Hoseini A, Gorjestani H, Raoof M, Assadian H, Shamshiri AR. Effect of phosphate-buffered saline on push-out bond strength of a new bioceramic sealer to root canal dentin. Dent Res J (Isfahan) 2012; 9:595-9. [PMID: 23559925 PMCID: PMC3612197 DOI: 10.4103/1735-3327.104879] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The aim of this study was to compare push-out bond strength of a new bioceramic endodontic sealer, EndoSequence BC sealer (Brasseler USA, Savannah, GA), used with gutta-percha in the presence or absence of phosphate-buffered saline solution (PBS) within the root canals. MATERIALS AND METHODS Forty single-rooted human teeth were prepared and randomly divided into four groups. Samples in groups 1 and 2 were dried, but those in groups 3 and 4 were moistened with PBS before obturation. All root canals were obturated with gutta-percha/EndoSequence BC sealer. The specimens were stored in PBS for 7 days in groups 1 and 3 and for 2 months in groups 2 and 4. Push-out bond strength values and failure modes were evaluated. The data on push-out bond strength were analyzed using two-way ANOVA. RESULTS The mean value for the bond strength of the obturation material in moistened canals was significantly higher than that in dried ones at 1 week (P = 0.00). Contrarily, there was no significant difference between dried and moistened root canals at 2 months (P = 0.61). In dried canals, bond strength increased significantly with time but in moistened ones, the difference was not significant. Inspection of the specimens revealed the bond failure to be mainly cohesive for all groups. CONCLUSION The presence of PBS within the root canals increased the bond strength of EndoSequence BC sealer/gutta-percha at 1 week. However, no difference was found between the bond strength of EndoSequence BC sealer/gutta-percha in the presence or absence of PBS in the root canals at 2 months.
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Affiliation(s)
- Noushin Shokouhinejad
- Dental Research Center/Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
- Iranian Center for Endodontic Research, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Hoseini
- Department of Endodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hedayat Gorjestani
- Oral and Dental Diseases Research Center/School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Raoof
- Oral and Dental Diseases Research Center/School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
- Department of Endodontics, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Ahmad Reza Shamshiri
- Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Liu W, Peng W, Zhu Y, Chang J. Physicochemical properties and in vitro biocompatibility of a hydraulic calcium silicate/tricalcium aluminate cement for endodontic use. J Biomed Mater Res B Appl Biomater 2012; 100:1257-63. [PMID: 22576986 DOI: 10.1002/jbm.b.32690] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Revised: 10/06/2011] [Accepted: 10/09/2011] [Indexed: 11/10/2022]
Abstract
This study sought to prepare a calcium silicate cement (CSC) with varying additions of tricalcium aluminate (Ca(3)Al(2)O(6), C(3)A), and to find an optimal amount of C(3)A by evaluating the effect of C(3)A on the physicochemical and in vitro biological properties of the CS/C(3)A cement. The results indicated that the addition of C(3)A into CSC reduced the setting time and improved the compressive strength especially at the early stage of setting. However, the 15% C(3)A was too much for the CS/C(3)A system and did harm to its strength development. Furthermore, the CS/C(3)A cement was bioactive and biocompatible in vitro, and had a stimulatory effect on the cell growth, when the content of C(3)A was 5 or 10%. When compared with the commercially available Dycal(®), the CS/C(3)A cement was notably more compatible with the human dental pulp cells. Therefore, the CS/C(3)A cement with 5-10% C(3)A produced the best compromise between setting and in vitro biological properties, and may be a promising candidate for endodontic use.
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Affiliation(s)
- Weining Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
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41
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Lin Q, Xu Z, Lan X, Ni Y, Lu C. The reactivity of nano silica with calcium hydroxide. J Biomed Mater Res B Appl Biomater 2011; 99:239-46. [DOI: 10.1002/jbm.b.31891] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 04/28/2011] [Accepted: 05/08/2011] [Indexed: 11/08/2022]
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Han L, Okiji T. Uptake of calcium and silicon released from calcium silicate-based endodontic materials into root canal dentine. Int Endod J 2011; 44:1081-7. [PMID: 21777256 DOI: 10.1111/j.1365-2591.2011.01924.x] [Citation(s) in RCA: 183] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To compare Biodentine and White ProRoot mineral trioxide aggregate (MTA) with regard to Ca and Si uptake by adjacent root canal dentine in the presence of phosphate-buffered saline (PBS). METHODOLOGY Root canals of bovine incisor root segments were instrumented, filled with either Biodentine or MTA (n = 20 each) and then immersed in Ca-and Mg-free PBS for 1, 7, 30 or 90 days (n = 5 each). Unfilled, unimmersed dentine specimens (n = 5) served as controls. The specimens were sectioned longitudinally, and the ultrastructure of the dentine-material interface and the elemental composition/distribution in the material-adjacent dentine were analysed using a wavelength-dispersive X-ray spectroscopy electron probe microanalyser with image observation function. Data were statistically analyzed using one-way anova and Tukey's honestly significant difference test or the Mann-Whitney U-test. RESULTS Along the material-dentine interface, both materials formed a tag-like structure that was composed of either Ca- and P-rich crystalline deposits or the material itself. The width of a Ca- and Si-rich layer detected along the dentine layer of the material-dentine interface showed increases over time. The Ca- and Si-rich layer width was significantly larger (P < 0.05) in Biodentine than MTA at 30 and 90 days. CONCLUSIONS Both Biodentine and MTA caused the uptake of Ca and Si in the adjacent root canal dentine in the presence of PBS. The dentine element uptake was more prominent for Biodentine than MTA.
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Affiliation(s)
- L Han
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
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Liu W, Chang J. Setting properties and biocompatibility of dicalcium silicate with varying additions of tricalcium aluminate. J Biomater Appl 2011; 27:171-8. [DOI: 10.1177/0885328211398507] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study sought to prepare biphasic mixtures by adding tricalcium aluminate (Ca3Al2O6) into dicalcium silicate (Ca2SiO4) and to evaluate the effect of Ca3Al2O6 on setting properties and biocompatibility of the Ca2SiO4/Ca3Al2O6 mixtures as compared to pure Ca2SiO4. The results indicated that the addition of Ca3Al2O6 into Ca2SiO4 reduced the setting time and improved the compressive strength. Furthermore, Ca2SiO4/Ca3Al2O6 mixtures were bioactive and biocompatible, and had a stimulatory effect on the L929 cell growth when the content of Ca3Al2O6 was below 10%. Therefore, the mixtures with 10% Ca3Al2O6 produced the best compromise between setting and in vitro biological properties.
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Affiliation(s)
- Weining Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
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HAN L, OKIJI T. Evaluation of the ions release / incorporation of the prototype S-PRG filler-containing endodontic sealer. Dent Mater J 2011; 30:898-903. [DOI: 10.4012/dmj.2011-101] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Linlin HAN
- Division of Cariology, Operative Dentistry, and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences
| | - Takashi OKIJI
- Division of Cariology, Operative Dentistry, and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences
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45
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Ding SJ, Shie MY, Hoshiba T, Kawazoe N, Chen G, Chang HC. Osteogenic differentiation and immune response of human bone-marrow-derived mesenchymal stem cells on injectable calcium-silicate-based bone grafts. Tissue Eng Part A 2010; 16:2343-54. [PMID: 20205531 DOI: 10.1089/ten.tea.2009.0749] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Calcium silicate cement (CSC) is biocompatible and possesses in vitro bioactivity. The aim of this study was to improve the handling and enhance osteogenic and immune properties of CSC by the addition of adjuvants to modify the cement. Human bone-marrow-derived mesenchymal stem cells were used to study the osteogenic behavior and immune response of cells on hybrid cements with added gelatin (GLT) and chitosan oligosaccharides (COS), which are analogs of the extracellular matrix components collagen and glycosaminoglycan, respectively. The addition of COS to the liquid phase slightly prolonged the setting time of CSC, whereas GLT in the solid phase significantly (p < 0.05) extended the hydration reaction. However, the addition of GLT appreciably improved the injectability of CSC, compared to COS. Cell viability was higher on CSC-COS than on the CSC control or on CSC-GLT at all culture times. The hybrid bone cements elicited less immune response than the CSC control. Additionally, COS inhibited expression of inducible nitric oxide synthase and interleukin-1 and activated interleukin-10 more effectively than GLT. Osteocalcin production and bone sialoprotein production were higher, and more calcium was detected in human bone-marrow-derived mesenchymal stem cells cultured on a CSC-GLT-COS surface than on CSC, CSC-GLT, or CSC-COS. These synergistic improvements in injectability, immune response, and osteogenesis suggest that the combination of bioactive calcium silicate, GLT, and COS has potential for use in clinical applications.
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Affiliation(s)
- Shinn-Jyh Ding
- Institute of Oral Biology and Biomaterials Science, Chung-Shan Medical University, Taichung, Taiwan, Republic of China.
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Low KL, Tan SH, Zein SHS, Roether JA, Mouriño V, Boccaccini AR. Calcium phosphate-based composites as injectable bone substitute materials. J Biomed Mater Res B Appl Biomater 2010; 94:273-86. [PMID: 20336722 DOI: 10.1002/jbm.b.31619] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A major weakness of current orthopedic implant materials, for instance sintered hydroxyapatite (HA), is that they exist as a hardened form, requiring the surgeon to fit the surgical site around an implant to the desired shape. This can cause an increase in bone loss, trauma to the surrounding tissue, and longer surgical time. A convenient alternative to harden bone filling materials are injectable bone substitutes (IBS). In this article, recent progress in the development and application of calcium phosphate (CP)-based composites use as IBS is reviewed. CP materials have been used widely for bone replacement because of their similarity to the mineral component of bone. The main limitation of bulk CP materials is their brittle nature and poor mechanical properties. There is significant effort to reinforce or improve the mechanical properties and injectability of calcium phosphate cement (CPC) and this review resumes different alternatives presented in this specialized literature.
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Affiliation(s)
- Kah Ling Low
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia
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47
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Portela A, Vasconcelos M, Branco R, Gartner F, Faria M, Cavalheiro J. An in vitro and in vivo investigation of the biological behavior of a ferrimagnetic cement for highly focalized thermotherapy. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:2413-2423. [PMID: 20549312 DOI: 10.1007/s10856-010-4093-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2008] [Accepted: 05/05/2010] [Indexed: 05/29/2023]
Abstract
The cancer treatment by local hyperthermia, using a high frequency electromagnetic field is an extensively studied subject. For this propose it was developed a ferrimagnetic cement (FC) to be injected directly into the tumor. In this study it was determined the FC injectability, its capability to generate heat when placed within a magnetic field and its interaction with a modified simulated body fluid using SEM/EDS and XRD. The FC biological response was assessed by the intramuscular implantation in rats and histological analysis of the surrounding tissues. The results suggest that FC can be injected directly into the tumor, its temperature can be increased when exposed to a magnetic field and the surface of the immersed samples quickly becomes coated with precipitate denoting its ionic change with the surrounding medium. The histological analysis revealed a transient local inflammatory reaction, similar to the control material, only slightly more abundant during the first weeks, with a gradual decrease over the implantation time. Based on these results, we concluded that FC might be useful for highly focalized thermotherapy, with a good potential for clinical use.
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Affiliation(s)
- Ana Portela
- Faculty of Dental Medicine, University of Porto, Porto, Portugal.
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48
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Chen CC, Lai MH, Wang WC, Ding SJ. Properties of anti-washout-type calcium silicate bone cements containing gelatin. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1057-1068. [PMID: 19941041 DOI: 10.1007/s10856-009-3948-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Accepted: 11/16/2009] [Indexed: 05/28/2023]
Abstract
Novel washout-resistant bone substitute materials consisting of gelatin-containing calcium silicate cements (CSCs) were developed. The washout resistance, setting time, diametral tensile strength (DTS), morphology, and phase composition of the hybrid cements were evaluated. The results indicated that the dominant phase of beta-Ca(2)SiO(4) for the SiO(2)-CaO powders increased with an increase in the CaO content of the sols. After mixing with water, the setting times of the CSCs ranged from 10 to 29 min, increasing with a decrease in the amount of CaO in the sols. Addition of gelatin into the CSC significantly prolonged (P < 0.05) the setting time by about 2 and 8 times, respectively, for 5% and 10% gelatin. However, the presence of gelatin appreciably improved the anti-washout and brittle properties of the cements without adversely affecting mechanical strength. It was concluded that 5% gelatin-containing CSC may be useful as bioactive bone repair materials.
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Affiliation(s)
- Chun-Cheng Chen
- Department of Dentistry, Chung-Shan Medical University Hospital, Taichung, Taiwan, Republic of China
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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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HAN L, OKIJI T, OKAWA S. Morphological and chemical analysis of different precipitates on mineral trioxide aggregate immersed in different fluids. Dent Mater J 2010; 29:512-7. [DOI: 10.4012/dmj.2009-133] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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