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Lee YN, Kim MK, Kim HJ, Yu MK, Lee KW, Min KS. Evaluation of the root dentin bond strength and intratubular biomineralization of a premixed calcium aluminate-based hydraulic bioceramic endodontic sealer. J Oral Sci 2024; 66:96-101. [PMID: 38325857 DOI: 10.2334/josnusd.23-0235] [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] [Indexed: 02/09/2024]
Abstract
PURPOSE This study evaluated the dentin bonding strength and biomineralization effect of a recently developed premixed calcium aluminate-based endodontic sealer (Dia-Root Bio Sealer) in comparison with existing calcium silicate-based sealers. METHODS The root canals of 80 mandibular premolars were filled with Dia-Root Bio Sealer, Endoseal MTA, EndoSequence BC Sealer, and AH Plus Bioceramic Sealer. Medial and apical specimens were then obtained by sectioning. The push-out bond strength was measured using the medial specimens, and the failure mode was recorded. Intratubular biomineralization in the apical specimens was analyzed using scanning electron microscopy and energy-dispersive X-ray spectroscopy (EDS). The data were analyzed using one-way analysis of variance followed by the Tukey test (P < 0.05). RESULTS The push-out bond strength of Dia-Root Bio Sealer was significantly higher than that of the other tested materials, and a cohesive failure pattern was observed in all groups. Dia-Root Bio Sealer also exhibited a significantly higher degree of biomineralization than the other groups, and EDS analysis indicated that the biomineralized precipitates were amorphous calcium phosphate. CONCLUSION The results of this study indicate that Dia-Root Bio Sealer has the potential to be used as an adequate root canal sealer due to its favorable bonding performance.
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Affiliation(s)
- Yu-Na Lee
- Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University
| | - Min-Kyeong Kim
- Department of Dentistry, College of Medicine, Kosin University
| | - Hee-Jin Kim
- Department of Dentistry, College of Medicine, Kosin University
| | - Mi-Kyung Yu
- Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University
- Research Institute of Clinical Medicine of Jeonbuk National University
- Biomedical Research Institute of Jeonbuk National University Hospital
| | - Kwang-Won Lee
- Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University
- Research Institute of Clinical Medicine of Jeonbuk National University
- Biomedical Research Institute of Jeonbuk National University Hospital
| | - Kyung-San Min
- Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University
- Research Institute of Clinical Medicine of Jeonbuk National University
- Biomedical Research Institute of Jeonbuk National University Hospital
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Edanami N, Takenaka S, Ibn Belal RS, Yoshiba K, Takahara S, Yoshiba N, Ohkura N, Noiri Y. In Vivo Assessment of the Apatite-Forming Ability of New-Generation Hydraulic Calcium Silicate Cements Using a Rat Subcutaneous Implantation Model. J Funct Biomater 2023; 14:jfb14040213. [PMID: 37103303 PMCID: PMC10144219 DOI: 10.3390/jfb14040213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/07/2023] [Accepted: 04/09/2023] [Indexed: 04/28/2023] Open
Abstract
Hydroxyapatite formation on endodontic hydraulic calcium silicate cements (HCSCs) plays a significant role in sealing the root canal system and elevating the hard-tissue inductivity of the materials. This study evaluated the in vivo apatite-forming ability of 13 new-generation HCSCs using an original HCSC (white ProRoot MTA: PR) as a positive control. The HCSCs were loaded into polytetrafluoroethylene tubes and implanted in the subcutaneous tissue of 4-week-old male Wistar rats. At 28 days after implantation, hydroxyapatite formation on the HCSC implants was assessed with micro-Raman spectroscopy, surface ultrastructural and elemental characterization, and elemental mapping of the material-tissue interface. Seven new-generation HCSCs and PR had a Raman band for hydroxyapatite (v1 PO43- band at 960 cm-1) and hydroxyapatite-like calcium-phosphorus-rich spherical precipitates on the surfaces. The other six HCSCs with neither the hydroxyapatite Raman band nor hydroxyapatite-like spherical precipitates did not show calcium-phosphorus-rich hydroxyapatite-layer-like regions in the elemental mapping. These results indicated that 6 of the 13 new-generation HCSCs possessed little or no ability to produce hydroxyapatite in vivo, unlike PR. The weak in vivo apatite-forming ability of the six HCSCs may have a negative impact on their clinical performance.
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Affiliation(s)
- Naoki Edanami
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Shoji Takenaka
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Razi Saifullah Ibn Belal
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Kunihiko Yoshiba
- Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Shintaro Takahara
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Nagako Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Naoto Ohkura
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
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El-Hamid HKA, Radwan MM. Influence of nano-silica additions on hydration characteristics and cytotoxicity of calcium aluminate as biomaterial. Heliyon 2019; 5:e02135. [PMID: 31372568 PMCID: PMC6661286 DOI: 10.1016/j.heliyon.2019.e02135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/04/2019] [Accepted: 07/18/2019] [Indexed: 11/26/2022] Open
Abstract
Composites of nano-calcium aluminate 'CA' biocement, synthesized by a solid state reaction, were prepared with 5, 10 and 20 wt.% of nano-SiO2 particles. The influence of nano-SiO2 particle additions on the physico-mechanical properties and hydration characteristics of CA biocement was studied. Calcium ion concentrations and, pH values of the curing medium were measured. The hydration characteristics of pure and composite CA phase were studied by determining the X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS). Evaluation of cytotoxicity against the skin normal human cell line BJ-1 was carried out. The results showed that the bulk density and micro-hardness of the composite CA containing 10 wt.% of nano-SiO2 were better than those of pure CA and composite prepared with higher weight percentages of nano-SiO2. Both pure and composite CA bio-cements showed no cytotoxicity, making these materials suitable for medical applications.
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Affiliation(s)
- H K Abd El-Hamid
- Refractories, Ceramics and Building Materials Department, National Research Centre (NRC), El-Buhouth St., Dokki, Cairo, 12622, Egypt
| | - M M Radwan
- Refractories, Ceramics and Building Materials Department, National Research Centre (NRC), El-Buhouth St., Dokki, Cairo, 12622, Egypt
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Choi Y, Bae JL, Kim HJ, Yu MK, Lee KW, Min KS. Effects of dodecacalcium hepta-aluminate content on the setting time, compressive strength, alkalinity, and cytocompatibility of tricalcium silicate cement. J Appl Oral Sci 2019; 27:e20180247. [PMID: 30624470 PMCID: PMC6322644 DOI: 10.1590/1678-7757-2018-0247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/20/2018] [Indexed: 11/21/2022] Open
Abstract
Objective This study aimed to investigate the effects of dodecacalcium hepta-aluminate (C12A7) content on some physicochemical properties and cytocompatibility of tricalcium silicate (C3S) cement using human dental pulp cells (hDPCs). Material and Methods High purity C3S cement was manufactured by a solid phase method. C12A7 was mixed with the cement in proportions of 0, 5, 8, and 10 wt% (C12A7-0, −5, −8, and −10, respectively). Physicochemical properties including initial setting time, compressive strength, and alkalinity were evaluated. Cytocompatibility was assessed with cell viability tests and cell number counts. Statistical analysis was performed by using one-way analysis of variance (ANOVA) and Tukey's test (p<0.05). Results The initial setting time of C3S-based cement was shorter in the presence of C12A7 (p<0.05). After 1 day, C12A7-5 showed significantly higher compressive strength than the other groups (p<0.05). After 7 days, the compressive strength of C12A7-5 was similar to that of C12A7-0, whereas other groups showed strength lower than C12A7-0. The pH values of all tested groups showed no significant differences after 1 day (p>0.05). The C12A7-5 group showed similar cell viability to the C12A7-0 group (p>0.05), while the other experimental groups showed lower values compared to C12A7-0 group (p<0.05). The number of cells grown on the C12A7-5 specimen was higher than that on C12A7-8 and −10 (p<0.05). Conclusions The addition of C12A7 to C3S cement at a proportion of 5% resulted in rapid initial setting time and higher compressive strength with no adverse effects on cytocompatibility.
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Affiliation(s)
- Yoorina Choi
- Wonkwang University Dental Hospital, Department of Conservative Dentistry, Iksan, Korea.,Chonbuk National University, School of Dentistry and Institute of Oral Bioscience, Department of Conservative Dentistry, Jeonju, Korea
| | - Jong-Lye Bae
- Chonbuk National University, School of Dentistry and Institute of Oral Bioscience, Department of Conservative Dentistry, Jeonju, Korea
| | - Hee-Jin Kim
- Kosin University, College of Medicine, Department of Dentistry, Busan, Korea
| | - Mi-Kyung Yu
- Chonbuk National University, School of Dentistry and Institute of Oral Bioscience, Department of Conservative Dentistry, Jeonju, Korea.,Chonbuk National University, Research Institute of Clinical Medicine, Jeonju, Korea.,Chonbuk National University Hospital, Biomedical Research Institute, Jeonju, Korea
| | - Kwang-Won Lee
- Chonbuk National University, School of Dentistry and Institute of Oral Bioscience, Department of Conservative Dentistry, Jeonju, Korea.,Chonbuk National University, Research Institute of Clinical Medicine, Jeonju, Korea.,Chonbuk National University Hospital, Biomedical Research Institute, Jeonju, Korea
| | - Kyung-San Min
- Chonbuk National University, School of Dentistry and Institute of Oral Bioscience, Department of Conservative Dentistry, Jeonju, Korea.,Chonbuk National University, Research Institute of Clinical Medicine, Jeonju, Korea.,Chonbuk National University Hospital, Biomedical Research Institute, Jeonju, Korea
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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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Tu MG, Ho CC, Hsu TT, Huang TH, Lin MJ, Shie MY. Mineral Trioxide Aggregate with Mussel-inspired Surface Nanolayers for Stimulating Odontogenic Differentiation of Dental Pulp Cells. J Endod 2018; 44:963-970. [DOI: 10.1016/j.joen.2018.02.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/14/2018] [Accepted: 02/20/2018] [Indexed: 12/17/2022]
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Moon HJ, Lee JH, Kim JH, Knowles JC, Cho YB, Shin DH, Lee HH, Kim HW. Reformulated mineral trioxide aggregate components and the assessments for use as future dental regenerative cements. J Tissue Eng 2018; 9:2041731418807396. [PMID: 30397430 PMCID: PMC6207958 DOI: 10.1177/2041731418807396] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/26/2018] [Indexed: 11/16/2022] Open
Abstract
Mineral trioxide aggregate, which comprises three major inorganic components, namely, tricalcium silicate (C3S), dicalcium silicate (C2S), and tricalcium aluminate (C3A), is promising regenerative cement for dentistry. While mineral trioxide aggregate has been successfully applied in retrograde filling, the exact role of each component in the mineral trioxide aggregate system is largely unexplored. In this study, we individually synthesized the three components, namely, C3S, C2A, and C3A, and then mixed them to achieve various compositions (a total of 14 compositions including those similar to mineral trioxide aggregate). All powders were fabricated to obtain high purity. The setting reaction of all cement compositions was within 40 min, which is shorter than for commercial mineral trioxide aggregate (~150 min). Over time, the pH of the composed cements initially showed an abrupt increase and then plateaued (pH 10-12), which is a typical behavior of mineral trioxide aggregate. The compression and tensile strength of the composed cements increased (2-4 times the initial values) with time for up to 21 days in an aqueous medium, the degree to which largely depended on the composition. The cell viability test with rat mesenchymal stem cells revealed no toxicity for any composition except C3A, which contained aluminum. To confirm the in vivo biological response, cement was retro-filled into an extracted rat tooth and the complex was re-implanted. Four weeks post-operation, histological assessments revealed that C3A caused significant tissue toxicity, while good tissue compatibility was observed with the other compositions. Taken together, these results reveal that of the three major constituents of mineral trioxide aggregate, C3A generated significant toxicity in vitro and in vivo, although it accelerated setting time. This study highlights the need for careful consideration with regard to the composition of mineral trioxide aggregate, and if possible (when other properties are satisfactory), the C3A component should be avoided, which can be achieved by the mixture of individual components.
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Affiliation(s)
- Ho-Jin Moon
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Joong-Hyun Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Laboratory Animal Center, Osong Medical Innovation Foundation, Cheongju, Republic of Korea
| | - Jonathan C Knowles
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
- The Discoveries Centre for Regenerative and Precision Medicine, Eastman Dental Institute, University College London, London, UK
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
| | - Yong-Bum Cho
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Dong-Hoon Shin
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
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Schembri-Wismayer P, Camilleri J. Why Biphasic? Assessment of the Effect on Cell Proliferation and Expression. J Endod 2017; 43:751-759. [DOI: 10.1016/j.joen.2016.12.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 10/25/2016] [Accepted: 12/19/2016] [Indexed: 10/20/2022]
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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: 34] [Impact Index Per Article: 4.9] [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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Niu LN, Pei DD, Morris M, Jiao K, Huang XQ, Primus CM, Susin LF, Bergeron BE, Pashley DH, Tay FR. Mineralogenic characteristics of osteogenic lineage-committed human dental pulp stem cells following their exposure to a discoloration-free calcium aluminosilicate cement. Dent Mater 2016; 32:1235-1247. [DOI: 10.1016/j.dental.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 07/11/2016] [Accepted: 07/18/2016] [Indexed: 10/21/2022]
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11
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Demirkaya K, Can Demirdöğen B, Öncel Torun Z, Erdem O, Çetinkaya S, Akay C. In vivo evaluation of the effects of hydraulic calcium silicate dental cements on plasma and liver aluminium levels in rats. Eur J Oral Sci 2015; 124:75-81. [DOI: 10.1111/eos.12238] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Kadriye Demirkaya
- Department of Restorative Dentistry and Endodontics; Gülhane Military Medical Academy; Ankara Turkey
| | - Birsen Can Demirdöğen
- Department of Biomedical Engineering; TOBB University of Economics and Technology; Ankara Turkey
| | - Zeynep Öncel Torun
- Department of Restorative Dentistry and Endodontics; Gülhane Military Medical Academy; Ankara Turkey
| | - Onur Erdem
- Department of Toxicology; Gülhane Military Medical Academy; Ankara Turkey
| | - Serdar Çetinkaya
- Department of Toxicology; Gülhane Military Medical Academy; Ankara Turkey
| | - Cemal Akay
- Department of Toxicology; Gülhane Military Medical Academy; Ankara Turkey
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Effect of tricalcium aluminate on the physicochemical properties, bioactivity, and biocompatibility of partially stabilized cements. PLoS One 2014; 9:e106754. [PMID: 25247808 PMCID: PMC4172564 DOI: 10.1371/journal.pone.0106754] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 08/01/2014] [Indexed: 11/24/2022] Open
Abstract
Background/Purpose Mineral Trioxide Aggregate (MTA) was widely used as a root-end filling material and for vital pulp therapy. A significant disadvantage to MTA is the prolonged setting time has limited the application in endodontic treatments. This study examined the physicochemical properties and biological performance of novel partially stabilized cements (PSCs) prepared to address some of the drawbacks of MTA, without causing any change in biological properties. PSC has a great potential as the vital pulp therapy material in dentistry. Methods This study examined three experimental groups consisting of samples that were fabricated using sol-gel processes in C3S/C3A molar ratios of 9/1, 7/3, and 5/5 (denoted as PSC-91, PSC-73, and PSC-55, respectively). The comparison group consisted of MTA samples. The setting times, pH variation, compressive strength, morphology, and phase composition of hydration products and ex vivo bioactivity were evaluated. Moreover, biocompatibility was assessed by using lactate dehydrogenase to determine the cytotoxicity and a cell proliferation (WST-1) assay kit to determine cell viability. Mineralization was evaluated using Alizarin Red S staining. Results Crystalline phases, which were determined using X-ray diffraction analysis, confirmed that the C3A contents of the material powder differed. The initial setting times of PSC-73 and PSC-55 ranged between 15 and 25 min; these values are significantly (p<0.05, ANOVA and post-hoc test) lower than those obtained for MTA (165 min) and PSC-91 (80.5 min). All of the PSCs exhibited ex vivo bioactivity when immersed in simulated body fluid. The biocompatibility results for all of the tested cements were as favorable as those of the negative control, except for PSC-55, which exhibited mild cytotoxicity. Conclusion PSC-91 is a favorable material for vital pulp therapy because it exhibits optimal compressive strength, a short setting time, and high biocompatibility and bioactivity.
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Alsubait SA, Hashem Q, AlHargan N, AlMohimeed K, Alkahtani A. Comparative evaluation of push-out bond strength of ProRoot MTA, bioaggregate and biodentine. J Contemp Dent Pract 2014; 15:336-340. [PMID: 25307817 DOI: 10.5005/jp-journals-10024-1539] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To evaluate the push-out bond strength of Biodentine (BD) in comparison with two available calcium silicate based materials, bioaggregate (BA) and ProRoot MTA (WMTA). MATERIALS AND METHODS One hundred and twenty-three Root dentin slices of freshly extracted single Rooted human teeth were randomly divided into three groups (n = 41) according to the used test material: WMTA, BA, BD. After canal space preparation, the filling materials were placed inside the lumen of the slices. After 72 hours, the maximum force applied to materials at the time of dislodgement was recorded and slices were then examined under a stereomicroscope at ×40 magnification to determine the nature of bond failure. Analysis of variance (ANOVA) test was used to compare means of push-out bond strength. Post-hoc test was then accomplished for multiple comparisons. Chi-square test was used to determine if there is significant association between the type of material and type of failure. RESULTS The mean push-out bond strength ± standard deviation in MPa values of WMTA, BA and BD were 23.26 ± 5.49, 9.57 ± 3.45, 21.86 ± 6.9, respectively. There was no significant difference between the means of WMTA and BD (p = 0.566), but the mean of BA was significantly lower than those of WMTA and BD (p = 0.000). Under stereomicroscope, WMTA and BA showed a majority of mixed type of failure than cohesive failure, while BD showed the opposite. No adhesive failure was observed in any specimen. CONCLUSION The findings of the present study imply that the force needed for BD displacement is similar to WMTA and significantly higher than the force required to displace BA.
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Affiliation(s)
- Sara A Alsubait
- Assistant Professor, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia, e-mail:
| | - Qamar Hashem
- Dental Intern, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Njood AlHargan
- Dental Intern, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Khawlah AlMohimeed
- Dental Intern, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Alkahtani
- Associate Professor, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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Effect of endodontic cement on bone mineral density using serial dual-energy x-ray absorptiometry. J Endod 2014; 40:648-51. [PMID: 24767558 DOI: 10.1016/j.joen.2013.11.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 11/28/2013] [Accepted: 11/29/2013] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Materials with new compositions were tested in order to develop dental materials with better properties. Calcium silicate-based cements, including white mineral trioxide aggregate (WMTA), may improve osteopromotion because of their composition. Nano-modified cements may help researchers produce ideal root-end filling materials. Serial dual-energy x-ray absorptiometry measurement was used to evaluate the effects of particle size and the addition of tricalcium aluminate (C3A) to a type of mineral trioxide aggregate-based cement on bone mineral density and the surrounding tissues in the mandible of rabbits. METHODS Forty mature male rabbits (N = 40) were anesthetized, and a bone defect measuring 7 × 1 × 1 mm was created on the semimandible. The rabbits were divided into 2 groups, which were subdivided into 5 subgroups with 4 animals each based on the defect filled by the following: Nano-WMTA (patent application #13/211.880), WMTA (as standard), WMTA without C3A, Nano-WMTA + 2% Nano-C3A (Fujindonjnan Industrial Co, Ltd, Fujindonjnan Xiamen, China), and a control group. Twenty and forty days postoperatively, the animals were sacrificed, and the semimandibles were removed for DXA measurement. RESULTS The Kruskal-Wallis test followed by the Mann-Whitney U test showed significant differences between the groups at a significance level of P < .05. P values calculated by the Kruskal-Wallis test were .002 for bone mineral density at both intervals and P20 day = .004 and P40 day = .005 for bone mineral content. CONCLUSIONS This study showed that bone regeneration was enhanced by reducing the particle size (nano-modified) and C3A mixture. This may relate to the existence of an external supply of minerals and a larger surface area of nano-modified material, which may lead to faster release rate of Ca(2+), inducing bone formation. Adding Nano-C3A to Nano-WMTA may improve bone regeneration properties.
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Correa D, Almirall A, García-Carrodeguas R, dos Santos LA, De Aza AH, Parra J, Delgado JÁ. β-Dicalcium silicate-based cement: synthesis, characterization and in vitro bioactivity and biocompatibility studies. J Biomed Mater Res A 2013; 102:3693-703. [PMID: 24277585 DOI: 10.1002/jbm.a.35041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/28/2013] [Accepted: 11/18/2013] [Indexed: 12/27/2022]
Abstract
β-dicalcium silicate (β-Ca₂ SiO₄, β-C₂ S) is one of the main constituents in Portland cement clinker and many refractory materials, itself is a hydraulic cement that reacts with water or aqueous solution at room/body temperature to form a hydrated phase (C-S-H), which provides mechanical strength to the end product. In the present investigation, β-C₂ S was synthesized by sol-gel process and it was used as powder to cement preparation, named CSiC. In vitro bioactivity and biocompatibility studies were assessed by soaking the cement samples in simulated body fluid solutions and human osteoblast cell cultures for various time periods, respectively. The results showed that the sol-gel process is an available synthesis method in order to obtain a pure powder of β-C₂ S at relatively low temperatures without chemical stabilizers. A bone-like apatite layer covered the material surface after soaking in SBF and its compressive strength (CSiC cement) was comparable with that of the human trabecular bone. The extracts of this cement were not cytotoxic and the cell growth and relative cell viability were comparable to negative control.
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Affiliation(s)
- Daniel Correa
- Departamento de Cerámicas y Composites, Centro de Biomateriales, Universidad de La Habana, 10400, La Habana, Cuba
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Oloomi K, Saberi E, Mokhtari H, Mokhtari Zonouzi HR, Nosrat A, Nekoofar MH, Dummer PMH. Evaluation of the effect of blood contamination on the compressive strength of MTA modified with hydration accelerators. Restor Dent Endod 2013; 38:128-33. [PMID: 24010078 PMCID: PMC3761120 DOI: 10.5395/rde.2013.38.3.128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/03/2013] [Accepted: 06/16/2013] [Indexed: 11/17/2022] Open
Abstract
Objectives This study was performed to evaluate the effect of blood contamination on the compressive strength (CS) of Root MTA (RMTA) modified with Calcium chloride (CaCl2) and Disodium hydrogen phosphate (Na2HPO4) as setting accelerators over time. Materials and Methods A total of 110 cylindrical specimens of RMTA were divided into 6 experimental groups as follows: Group1, RMTA; Group 2, RMTA modified with CaCl2 (RMTA-C); Group 3, RMTA modified with Na2HPO4 (RMTA-N); Group 4, RMTA contaminated with blood; Group 5, RMTA-C contaminated with blood; Group 6, RMTA-N contaminated with blood. The CS of specimens in all groups was evaluated after 3 hr, 24 hr, and 1 wk. In the modified groups (groups 2, 3, 5, and 6) the CS of five specimens per group was also evaluated after 1 hr. Results Blood contamination significantly reduced the CS of all materials at all time intervals (p < 0.05). After 3 hr, the CS of specimens in the RMTA groups (with and without blood contamination) was significantly lower than those in the RMTA-C and RMTA-N groups (p < 0.05). The CS values were not significantly different at the other time intervals. In all groups, the CS of specimens significantly increased over time (p < 0.05). Conclusions Blood contamination decreased the CS of both original and accelerated RMTA.
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Affiliation(s)
- Kaveh Oloomi
- Department of Endodontics, Tehran University of Medical Sciences School of Dentistry, Tehran, Iran
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Chang SW. Chemical characteristics of mineral trioxide aggregate and its hydration reaction. Restor Dent Endod 2012; 37:188-93. [PMID: 23429542 PMCID: PMC3568637 DOI: 10.5395/rde.2012.37.4.188] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 08/17/2012] [Accepted: 08/28/2012] [Indexed: 11/11/2022] Open
Abstract
Mineral trioxide aggregate (MTA) was developed in early 1990s and has been successfully used for root perforation repair, root end filling, and one-visit apexification. MTA is composed mainly of tricalcium silicate and dicalcium silicate. When MTA is hydrated, calcium silicate hydrate (CSH) and calcium hydroxide is formed. Formed calcium hydroxide interacts with the phosphate ion in body fluid and form amorphous calcium phosphate (ACP) which finally transforms into calcium deficient hydroxyapatite (CDHA). These mineral precipitate were reported to form the MTA-dentin interfacial layer which enhances the sealing ability of MTA. Clinically, the use of zinc oxide euginol (ZOE) based materials may retard the setting of MTA. Also, the use of acids or contact with excessive blood should be avoided before complete set of MTA, because these conditions could adversely affect the hydration reaction of MTA. Further studies on the chemical nature of MTA hydration reaction are needed.
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Affiliation(s)
- Seok-Woo Chang
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Chiang TY, Ding SJ. Physicochemical properties of radiopaque dicalcium silicate cement as a root-end filling material in an acidic environment. Int Endod J 2012; 46:234-41. [DOI: 10.1111/j.1365-2591.2012.02112.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 07/04/2012] [Indexed: 01/06/2023]
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Saghiri MA, Garcia-Godoy F, Gutmann JL, Lotfi M, Asatourian A, Ahmadi H. Push-out bond strength of a nano-modified mineral trioxide aggregate. Dent Traumatol 2012; 29:323-7. [DOI: 10.1111/j.1600-9657.2012.01176.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammad Ali Saghiri
- Department of Dental Materials and Craniofacial Research Center; Dental School, Azad University (Tehran Branch); Tehran; Iran
| | - Franklin Garcia-Godoy
- Bioscience Research Centerm, College of Dentistry, the University of Tennessee Health Science Center; Memphis; TN; USA
| | - James L. Gutmann
- Department of Restorative Sciences; Baylor College of Dentistry, Texas A&M University System Health Science Center; Dallas; TX; USA
| | - Mehrdad Lotfi
- Research Center for Pharmaceutical Nanotechnology and Department of Endodontics, Dental Faculty; Tabriz University (Medical Sciences); Tabriz; Iran
| | - Armen Asatourian
- Department of Dental Materials; Kamal Asgar Research Center (KARC); Tehran; Iran
| | - Hadi Ahmadi
- Department of Dental Materials; Kamal Asgar Research Center (KARC); 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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Shie MY, Chang HC, Ding SJ. Effects of altering the Si/Ca molar ratio of a calcium silicate cement on in vitro cell attachment. Int Endod J 2011; 45:337-45. [DOI: 10.1111/j.1365-2591.2011.01981.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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