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Lu T, Li G, Zhang L, Yuan X, Wu T, Ye J. Optimizing silicon doping levels for enhanced osteogenic and angiogenic properties of 3D-printed biphasic calcium phosphate scaffolds: An in vitro screening and in vivo validation study. Mater Today Bio 2024; 28:101203. [PMID: 39221203 PMCID: PMC11364896 DOI: 10.1016/j.mtbio.2024.101203] [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: 04/11/2024] [Revised: 07/24/2024] [Accepted: 08/13/2024] [Indexed: 09/04/2024] Open
Abstract
Biphasic calcium phosphate (BCP) ceramics are valued for their osteoconductive properties but have limited osteogenic and angiogenic activities, which restricts their clinical utility in bone defect repair. Silicon doping has emerged as an effective strategy to enhance these biological functions of BCP. However, the biological impact of BCP is influenced by the level of silicon doping, necessitating determination of the optimal concentration to maximize efficacy in bone repair. This study investigated the effects of silicon doping on both the physicochemical and biological properties of BCP, with a specific focus on osteogenic and angiogenic potentials. Results indicated that silicon doping exceeding 4 mol.% led to the formation of α-TCP, accelerating BCP degradation, enhancing silicon ion release, and promoting mineralization product formation. Simultaneously, silicon doping increased the porosity of BCP scaffolds, which typically reduces their compressive strength. Nevertheless, scaffolds doped with ≤4 mol.% silicon maintained compressive strengths exceeding 2 MPa. In vitro biological experiments indicated that higher levels of silicon doping (≥6 mol.%) partially inhibited the successful differentiation of stem cells and the vascularization of endothelial cells. Optimal conditions for promoting osteogenic differentiation and angiogenesis were identified between 2 and 4 mol.% silicon doping, with an optimal level of approximately 4 mol.%. Subsequent in vivo experiments confirmed that BCP scaffolds doped with 4 mol.% silicon effectively promoted vascularization and new bone formation, highlighting their potential for clinical bone defect repair.
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Affiliation(s)
- Teliang Lu
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510316, PR China
| | - Guohao Li
- The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, 510630, PR China
- Zhoukou Center Hospital, Zhoukou, Henan, 466000, PR China
| | - Luhui Zhang
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou, 510641, PR China
| | - Xinyuan Yuan
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou, 510641, PR China
| | - Tingting Wu
- National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510316, PR China
| | - Jiandong Ye
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, PR China
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2
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Wang C, Liu X, Zhou J, Zhang X, Zhou Z, Zhang Q. Sensory nerves drive migration of dental pulp stem cells via the CGRP-Ramp1 axis in pulp repair. Cell Mol Life Sci 2024; 81:373. [PMID: 39196292 PMCID: PMC11358583 DOI: 10.1007/s00018-024-05400-2] [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: 09/01/2023] [Revised: 07/17/2024] [Accepted: 08/06/2024] [Indexed: 08/29/2024]
Abstract
Dental pulp stem cells (DPSCs) are responsible for maintaining pulp structure and function after pulp injury. DPSCs migrate directionally to the injury site before differentiating into odontoblast-like cells, which is a prerequisite and a determinant in pulp repair. Increasing evidence suggests that sensory neuron-stem cell crosstalk is critical for maintaining normal physiological functions, and sensory nerves influence stem cells mainly by neuropeptides. However, the role of sensory nerves on DPSC behaviors after pulp injury is largely unexplored. Here, we find that sensory nerves released significant amounts of calcitonin gene-related peptide (CGRP) near the injury site, acting directly on DPSCs via receptor activity modifying protein 1 (RAMP1) to promote collective migration of DPSCs to the injury site, and ultimately promoting pulp repair. Specifically, sensory denervation leads to poor pulp repair and ectopic mineralization, in parallel with that DPSCs failed to be recruited to the injury site. Furthermore, in vitro evidence shows that sensory nerve-deficient microenvironment suppressed DPSC migration prominently among all related behaviors. Mechanistically, the CGRP-Ramp1 axis between sensory neurons and DPSCs was screened by single-cell RNA-seq analysis and immunohistochemical studies confirmed that the expression of CGRP rather than Ramp1 increases substantially near the damaged site. We further demonstrated that CGRP released by sensory nerves binds the receptor Ramp1 on DPSCs to facilitate cell collective migration by an indirect co-culture system using conditioned medium from trigeminal neurons, CGRP recombinant protein and antagonists BIBN4096. The treatment with exogenous CGRP promoted the recruitment of DPSCs, and ultimately enhanced the quality of pulp repair. Targeting the sensory nerve could therefore provide a new strategy for stem cell-based pulp repair and regeneration.
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Affiliation(s)
- Chunmeng Wang
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China
| | - Xiaochen Liu
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China
| | - Jiani Zhou
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China
| | - Xiaoyi Zhang
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China
| | - Zihao Zhou
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China
| | - Qi Zhang
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, No.399 Yanchang Middle Road, Jing'an District, Shanghai, 200072, China.
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Abdalla MM, Sayed O, Lung CYK, Rajasekar V, Yiu CKY. Applications of Bioactive Strontium Compounds in Dentistry. J Funct Biomater 2024; 15:216. [PMID: 39194654 DOI: 10.3390/jfb15080216] [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: 07/08/2024] [Revised: 07/26/2024] [Accepted: 07/30/2024] [Indexed: 08/29/2024] Open
Abstract
Divalent cations have captured the interest of researchers in biomedical and dental fields due to their beneficial effects on bone formation. These metallic elements are similar to trace elements found in human bone. Strontium is a divalent cation commonly found in various biomaterials. Since strontium has a radius similar to calcium, it has been used to replace calcium in many calcium-containing biomaterials. Strontium has the ability to inhibit bone resorption and increase bone deposition, making it useful in the treatment of osteoporosis. Strontium has also been used as a radiopacifier in dentistry and has been incorporated into a variety of dental materials to improve their radiopacity. Furthermore, strontium has been shown to improve the antimicrobial and mechanical properties of dental materials, promote enamel remineralization, alleviate dentin hypersensitivity, and enhance dentin regeneration. The objective of this review is to provide a comprehensive review of the applications of strontium in dentistry.
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Affiliation(s)
- Mohamed Mahmoud Abdalla
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Cairo 11651, Egypt
| | - Osama Sayed
- Faculty of Dentistry, Fayoum University, Faiyum 63514, Egypt
| | - Christie Ying Kei Lung
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Vidhyashree Rajasekar
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Cynthia Kar Yung Yiu
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Vlajić Tovilović T, Petrović S, Lazarević M, Pavić A, Plačkić N, Milovanović A, Milošević M, Miletic V, Veljović D, Radunović M. Effect of Acetylsalicylic Acid on Biological Properties of Novel Cement Based on Calcium Phosphate Doped with Ions of Strontium, Copper, and Zinc. Int J Mol Sci 2024; 25:7940. [PMID: 39063181 PMCID: PMC11276672 DOI: 10.3390/ijms25147940] [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: 06/10/2024] [Revised: 07/08/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
This study aimed to compare the biological properties of newly synthesized cements based on calcium phosphate with a commercially used cement, mineral trioxide aggregate (MTA). Strontium (Sr)-, Copper (Cu)-, and Zinc (Zn)-doped hydroxyapatite (miHAp) powder was obtained through hydrothermal synthesis and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive X-ray spectrometry (EDX). Calcium phosphate cement (CPC) was produced by mixing miHAp powder with a 20 wt.% citric acid solution, followed by the assessment of its compressive strength, setting time, and in vitro bioactivity. Acetylsalicylic acid (ASA) was added to the CPC, resulting in CPCA. Biological tests were conducted on CPC, CPCA, and MTA. The biocompatibility of the cement extracts was evaluated in vitro using human dental pulp stem cells (hDPSCs) and in vivo using a zebrafish model. Antibiofilm and antimicrobial effect (quantified by CFUs/mL) were assessed against Streptococcus mutans and Lactobacillus rhamnosus. None of the tested materials showed toxicity, while CPCA even increased hDPSCs proliferation. CPCA showed a better safety profile than MTA and CPC, and no toxic or immunomodulatory effects on the zebrafish model. CPCA exhibited similar antibiofilm effects against S. mutans and L. rhamnosus to MTA.
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Affiliation(s)
- Tamara Vlajić Tovilović
- School of Dental Medicine, University of Belgrade, 11 000 Belgrade, Serbia; (T.V.T.); (S.P.); (M.L.)
| | - Sanja Petrović
- School of Dental Medicine, University of Belgrade, 11 000 Belgrade, Serbia; (T.V.T.); (S.P.); (M.L.)
| | - Miloš Lazarević
- School of Dental Medicine, University of Belgrade, 11 000 Belgrade, Serbia; (T.V.T.); (S.P.); (M.L.)
| | - Aleksandar Pavić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11 000 Belgrade, Serbia; (A.P.); (N.P.)
| | - Nikola Plačkić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11 000 Belgrade, Serbia; (A.P.); (N.P.)
| | - Aleksa Milovanović
- Faculty of Mechanical Engineering, University of Belgrade, 11 000 Belgrade, Serbia; (A.M.); (M.M.)
| | - Miloš Milošević
- Faculty of Mechanical Engineering, University of Belgrade, 11 000 Belgrade, Serbia; (A.M.); (M.M.)
| | - Vesna Miletic
- Faculty of Medicine and Health, Sydney Dental School, University of Sydney, Surry Hills, NSW 2010, Australia;
| | - Djordje Veljović
- Faculty of Technology and Metallurgy, University of Belgrade, 11 000 Belgrade, Serbia
| | - Milena Radunović
- School of Dental Medicine, University of Belgrade, 11 000 Belgrade, Serbia; (T.V.T.); (S.P.); (M.L.)
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Huang C, Shi S, Qin M, Rong X, Ding Z, Fu X, Zeng W, Luo L, Wang D, Luo Z, Li Y, Zhou Z. A Composite Hydrogel Functionalized by Borosilicate Bioactive Glasses and VEGF for Critical-Size Bone Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400349. [PMID: 38713747 PMCID: PMC11234436 DOI: 10.1002/advs.202400349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/08/2024] [Indexed: 05/09/2024]
Abstract
Critical-size bone defects pose a formidable challenge in clinical treatment, prompting extensive research efforts to address this problem. In this study, an inorganic-organic multifunctional composite hydrogel denoted as PLG-g-TA/VEGF/Sr-BGNPs is developed, engineered for the synergistic management of bone defects. The composite hydrogel demonstrated the capacity for mineralization, hydroxyapatite formation, and gradual release of essential functional ions and vascular endothelial growth factor (VEGF) and also maintained an alkaline microenvironment. The composite hydrogel promoted the proliferation and osteogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs), as indicated by increased expression of osteogenesis-related genes and proteins in vitro. Moreover, the composite hydrogel significantly enhanced the tube-forming capability of human umbilical vein endothelial cells (HUVECs) and effectively inhibited the process of osteoblastic differentiation of nuclear factor kappa-B ligand (RANKL)-induced Raw264.7 cells and osteoclast bone resorption. After the implantation of the composite hydrogel into rat cranial bone defects, the expression of osteogenic and angiogenic biomarkers increased, substantiating its efficacy in promoting bone defect repair in vivo. The commendable attributes of the multifunctional composite hydrogel underscore its pivotal role in expediting hydrogel-associated bone growth and repairing critical bone defects, positioning it as a promising adjuvant therapy candidate for large-segment bone defects.
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Affiliation(s)
- Chao Huang
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Shun Shi
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduSichuan610065P. R. China
| | - Muyan Qin
- School of Materials Science and EngineeringTongji UniversityShanghai201804P. R. China
| | - Xiao Rong
- Department of UltrasoundWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Zichuan Ding
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Xiaoxue Fu
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Weinan Zeng
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Lei Luo
- West China School of Clinical MedicineSichuan UniversityChengduSichuan610041P. R. China
| | - Deping Wang
- School of Materials Science and EngineeringTongji UniversityShanghai201804P. R. China
| | - Zeyu Luo
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Yiwen Li
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduSichuan610065P. R. China
| | - Zongke Zhou
- Department of OrthopaedicsWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
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6
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Shearer A, Molinaro M, Montazerian M, Sly JJ, Miola M, Baino F, Mauro JC. The unexplored role of alkali and alkaline earth elements (ALAEs) on the structure, processing, and biological effects of bioactive glasses. Biomater Sci 2024; 12:2521-2560. [PMID: 38530228 DOI: 10.1039/d3bm01338c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Bioactive glass has been employed in several medical applications since its inception in 1969. The compositions of these materials have been investigated extensively with emphasis on glass network formers, therapeutic transition metals, and glass network modifiers. Through these experiments, several commercial and experimental compositions have been developed with varying chemical durability, induced physiological responses, and hydroxyapatite forming abilities. In many of these studies, the concentrations of each alkali and alkaline earth element have been altered to monitor changes in structure and biological response. This review aims to discuss the impact of each alkali and alkaline earth element on the structure, processing, and biological effects of bioactive glass. We explore critical questions regarding these elements from both a glass science and biological perspective. Should elements with little biological impact be included? Are alkali free bioactive glasses more promising for greater biological responses? Does this mixed alkali effect show increased degradation rates and should it be employed for optimized dissolution? Each of these questions along with others are evaluated comprehensively and discussed in the final section where guidance for compositional design is provided.
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Affiliation(s)
- Adam Shearer
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA.
| | - Matthew Molinaro
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Maziar Montazerian
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA.
| | - Jessica J Sly
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA.
| | - Marta Miola
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Torino, Italy.
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Torino, Italy.
| | - John C Mauro
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA.
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7
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Silva AV, Gomes DDS, Victor RDS, Santana LNDL, Neves GA, Menezes RR. Influence of Strontium on the Biological Behavior of Bioactive Glasses for Bone Regeneration. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7654. [PMID: 38138796 PMCID: PMC10744628 DOI: 10.3390/ma16247654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/26/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023]
Abstract
Bioactive glasses (BGs) can potentially be applied in biomedicine, mainly for bone repair and replacement, given their unique ability to connect to natural bone tissue and stimulate bone regeneration. Since their discovery, several glass compositions have been developed to improve the properties and clinical abilities of traditional bioactive glass. Different inorganic ions, such as strontium (Sr2+), have been incorporated in BG due to their ability to perform therapeutic functions. Sr2+ has been gaining prominence due to its ability to stimulate osteogenesis, providing an appropriate environment to improve bone regeneration, in addition to its antibacterial potential. However, as there are still points in the literature that are not well consolidated, such as the influence of ionic concentrations and the BG production technique, this review aims to collect information on the state of the art of the biological behavior of BGs containing Sr2+. It also aims to gather data on different types of BGs doped with different concentrations of Sr2+, and to highlight the manufacturing techniques used in order to analyze the influence of the incorporation of this ion for bone regeneration purposes.
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Affiliation(s)
- Amanda Vieira Silva
- Graduate Program in Materials Science and Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil;
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
| | - Déborah dos Santos Gomes
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
| | - Rayssa de Sousa Victor
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
| | - Lisiane Navarro de Lima Santana
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
| | - Gelmires Araújo Neves
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
| | - Romualdo Rodrigues Menezes
- Laboratory of Materials Technology (LTM), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (R.d.S.V.); (L.N.d.L.S.); (G.A.N.)
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Yuan X, Wu T, Lu T, Ye J. Effects of Zinc and Strontium Doping on In Vitro Osteogenesis and Angiogenesis of Calcium Silicate/Calcium Phosphate Cement. ACS Biomater Sci Eng 2023; 9:5761-5771. [PMID: 37676927 DOI: 10.1021/acsbiomaterials.3c00193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Based on multiple biological functions (mainly osteogenesis and angiogenesis) of bioactive ions, Zn/Sr-doped calcium silicate/calcium phosphate cements (Zn/Sr-CS/CPCs, including 10Zn-CS/CPC, 20Sr-CS/CPC, and 10Zn/20Sr-CS/CPC) were prepared by the addition of Zn and Sr dual active ions into CS/CPC to further accelerate its bone regeneration in this study. The physicochemical and biological properties of the Zn/Sr-CS/CPCs were systematically investigated. The results showed that the setting time was slightly prolonged, the compressive strength and porosity did not change much, and all groups maintained good injectability after the doping of Zn and Sr. Besides, the doping of Zn and Sr had little effect on the phase and microstructure of hydrated products of CS/CPC. The degradation rate of Zn/Sr-CS/CPCs decreased after doping with Zn and Sr. In mouse bone marrow mesenchymal stem cells (mBMSC) experiments, all Zn/Sr-CS/CPCs stimulated the viability, adhesion, proliferation, and alkaline phosphatase (ALP) activity together with osteogenesis-related genes (ALP, Runx2, Col-I, OCN, and OPN). The further addition of Zn and Sr played better and synergistic roles in in vitro osteogenesis. Thereinto, 10Zn/20Sr-CS/CPC manifested the optimum in vitro osteogenic performance. As for human umbilical vein endothelial cell (HUVEC) experiments, the incorporation of CS doped with Zn and Sr into CPC possessed good vascularization properties of proliferation, NO secretion, tube formation, and the expression of angiogenesis-related genes (VEGF, bFGF, and eNOS). In conclusion, the doping of Zn and Sr into CS/CPC could exhibit excellent osteogenesis and good angiogenesis potentials and 10Zn/20Sr-CS/CPC could be considered as a promising candidate in bone repair.
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Affiliation(s)
- Xinyuan Yuan
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
| | - Tingting Wu
- National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510536, P. R. China
| | - Teliang Lu
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, P. R. China
| | - Jiandong Ye
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
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Li X, Wang Y, Huang D, Jiang Z, He Z, Luo M, Lei J, Xiao Y. Nanomaterials Modulating the Fate of Dental-Derived Mesenchymal Stem Cells Involved in Oral Tissue Reconstruction: A Systematic Review. Int J Nanomedicine 2023; 18:5377-5406. [PMID: 37753067 PMCID: PMC10519211 DOI: 10.2147/ijn.s418675] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/03/2023] [Indexed: 09/28/2023] Open
Abstract
The critical challenges in repairing oral soft and hard tissue defects are infection control and the recovery of functions. Compared to conventional tissue regeneration methods, nano-bioactive materials have become the optimal materials with excellent physicochemical properties and biocompatibility. Dental-derived mesenchymal stem cells (DMSCs) are a particular type of mesenchymal stromal cells (MSCs) with great potential in tissue regeneration and differentiation. This paper presents a review of the application of various nano-bioactive materials for the induction of differentiation of DMSCs in oral and maxillofacial restorations in recent years, outlining the characteristics of DMSCs, detailing the biological regulatory effects of various nano-materials on stem cells and summarizing the material-induced differentiation of DMSCs into multiple types of tissue-induced regeneration strategies. Nanomaterials are different and complementary to each other. These studies are helpful for the development of new nanoscientific research technology and the clinical transformation of tissue reconstruction technology and provide a theoretical basis for the application of nanomaterial-modified dental implants. We extensively searched for papers related to tissue engineering bioactive constructs based on MSCs and nanomaterials in the databases of PubMed, Medline, and Google Scholar, using keywords such as "mesenchymal stem cells", "nanotechnology", "biomaterials", "dentistry" and "tissue regeneration". From 2013 to 2023, we selected approximately 150 articles that align with our philosophy.
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Affiliation(s)
- Xingrui Li
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Yue Wang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Denghao Huang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Zhonghao Jiang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Zhiyu He
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Maoxuan Luo
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Jie Lei
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Yao Xiao
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Department of Chengbei Outpatient, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
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10
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Qiu Y, Tian J, Kong S, Feng Y, Lu Y, Su L, Cai Y, Li M, Chang J, Yang C, Wei X. SrCuSi 4 O 10 /GelMA Composite Hydrogel-Mediated Vital Pulp Therapy: Integrating Antibacterial Property and Enhanced Pulp Regeneration Activity. Adv Healthc Mater 2023; 12:e2300546. [PMID: 37260366 PMCID: PMC11469286 DOI: 10.1002/adhm.202300546] [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: 02/20/2023] [Revised: 04/11/2023] [Indexed: 06/02/2023]
Abstract
Vital pulp therapy (VPT) is considered a conservative treatment for preserving pulp viability in caries-induced dental pulp infections. However, bacterial contamination negatively affects dentine-pulp complex repair. The common capping materials show limited antimicrobial effects against some microorganisms. To improve the VPT efficacy, capping materials with increased antibacterial properties and enhanced odontogenic and angiogenic activities are needed. Herein, a SrCuSi4 O10 /gelatin methacrylate(SC/Gel) composite hydrogel has been proposed for infected dental pulp treatment. SrCuSi4 O10 (SC) is a microscale bioceramic composed of assembled multilayered nanosheets that possesses good near-infrared photothermal conversion ability and multiple bioactivities due to sustained Sr2+ , Cu2+ , and SiO3 2- ion release. It is shown that the SC/Gel composite hydrogel efficiently eliminates Streptococcus mutans and Lactobacillus casei and inhibits biofilm formation under photothermal heating, while the ion extract from SC promotes odontogenesis of rat dental pulp stem cells and angiogenesis of human umbilical vein endothelial cells. The as-designed therapeutic effect of SC/Gel composite hydrogel-mediated VPT has been proven in a rat dental pulp infection model and yielded improved dentine-pulp complex repair compared with the commercially used iRoot® BP Plus. This study suggests that the SC/Gel composite hydrogel is a potential pulp-capping material with improved effects on dentine-pulp complex repair in infected pulp.
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Affiliation(s)
- Yu Qiu
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Jun Tian
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Siyi Kong
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Yanping Feng
- Joint Centre of Translational Medicinethe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000P. R. China
| | - Yangyu Lu
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Lefeng Su
- Joint Centre of Translational Medicinethe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000P. R. China
| | - Yanling Cai
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Mengjie Li
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
| | - Jiang Chang
- Joint Centre of Translational Medicinethe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000P. R. China
- Zhejiang Engineering Research Center for Tissue Repair MaterialsWenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou325000P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
| | - Chen Yang
- Joint Centre of Translational Medicinethe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000P. R. China
- Zhejiang Engineering Research Center for Tissue Repair MaterialsWenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou325000P. R. China
| | - Xi Wei
- Hospital of StomatologyGuanghua School of StomatologySun Yat‐Sen UniversityGuangzhouGuangdong510055P. R. China
- Guangdong Provincial Key Laboratory of StomatologyGuangzhouGuangdong510055P. R. China
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11
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Saghiri MA, Vakhnovetsky J, Samadi E, Napoli S, Samadi F, Conte M, Morgano SM. Effects of Diabetes on Elemental Levels and Nanostructure of Root Canal Dentin. J Endod 2023; 49:1169-1175. [PMID: 37429496 DOI: 10.1016/j.joen.2023.07.002] [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: 03/21/2023] [Revised: 06/26/2023] [Accepted: 07/02/2023] [Indexed: 07/12/2023]
Abstract
INTRODUCTION This study evaluated the effects of diabetes mellitus (DM) on the nanostructure of root canal dentin using high-resolution transmission electron microscopy (HRTEM) and inductively coupled plasma mass spectrometry (ICP-MS). METHODS Twenty extracted human premolars from diabetic and nondiabetic patients (n = 10 in each group) were decoronated and sectioned horizontally into 40 2-mm-thick dentin discs, with each disc designated for a specific test. ICP-MS was used to determine the different elemental levels of copper, lithium, zinc, selenium, strontium, manganese, and magnesium in diabetic and nondiabetic specimens. HRTEM was used to analyze the shape and quantity of the apatite crystals in diabetic and nondiabetic dentin at the nanostructural level. Statistical analysis was performed using Kolmogorov-Smirnov and Student t test (P < .05). RESULTS ICP-MS revealed significant differences in trace element concentrations between the diabetic and nondiabetic specimens (P < .05), with lower levels of magnesium, zinc, strontium, lithium, manganese, and selenium (P < .05), and higher levels of copper in diabetic specimens (P < .05). HRTEM revealed that diabetic dentin exhibited a less compact structure with smaller crystallites and significantly more crystals in the 2500 nm2 area (P < .05). CONCLUSION Diabetic dentin exhibited smaller crystallites and altered elemental levels more than nondiabetic dentin, which could explain the higher root canal treatment failure rate in diabetic patients.
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Affiliation(s)
- Mohammad Ali Saghiri
- Biomaterial and Prosthodontics Laboratory, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey; Department of Endodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, California.
| | - Julia Vakhnovetsky
- Sector of Innovation in Dentistry, Dr. Hajar Afsar Lajevardi Research Cluster (DHAL), Hackensack, New Jersey; Biomaterial and Prosthodontics Laboratory, Rutgers School of Dental Medicine, Newark, New Jersey; University of Michigan School of Dentistry, Ann Arbor, Michigan
| | - Elham Samadi
- Sector of Innovation in Dentistry, Dr. Hajar Afsar Lajevardi Research Cluster (DHAL), Hackensack, New Jersey; Biomaterial and Prosthodontics Laboratory, Rutgers School of Dental Medicine, Newark, New Jersey
| | - Salvatore Napoli
- Department of Oral and Maxillofacial Surgery, Rutgers School of Dental Medicine, Newark, New Jersey
| | - Fatereh Samadi
- Sector of Innovation in Dentistry, Dr. Hajar Afsar Lajevardi Research Cluster (DHAL), Hackensack, New Jersey; Biomaterial and Prosthodontics Laboratory, Rutgers School of Dental Medicine, Newark, New Jersey
| | - Michael Conte
- Office of Clinical Affairs, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey
| | - Steven M Morgano
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey
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12
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Nabil Sulyiman S, El-Rashidy AA, El Moshy S, Abbas MMS, Waly G. Nano eggshell-based slurry as a direct pulp-capping material: In vitro characterization and histopathological assessment in an experimental animal model. Int Endod J 2023; 56:1129-1146. [PMID: 37358385 DOI: 10.1111/iej.13949] [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: 11/21/2022] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/27/2023]
Abstract
AIM Pulp vitality is essential for tooth integrity. Following pulp exposure, choosing a suitable pulp-capping material is crucial to maintain pulp vitality. However, the reparative dentine bridge created by calcium hydroxide (Ca(OH)2 ) is generally porous and incomplete. The aim of the current study is to assess the in vitro and in vivo bioactivities of nano eggshell-based slurry (NES), using NES as a direct pulp-capping material, compared with Ca(OH)2 in rabbit animal model. METHODOLOGY Nano eggshell powder (NE) was characterized for particle morphology, chemical composition and ion release. In vitro bioactivity was tested by immersion in simulated body fluid (SBF) for 7 days. For histopathological evaluation, 36 adult New Zealand rabbits (72 pulp exposures) were divided into nine groups (n = 8) according to the pulp-capping material (NES, Ca(OH)2 and no capping as negative control group) and the animals were sacrificed after 7, 14 or 28 days. The pulps of the two lower central incisors were exposed and then directly capped by Ca(OH)2 or NES or left untreated. The cavities were then sealed with glass ionomer cement. Teeth were collected for histopathological evaluation using an optical microscope. Pulp haemorrhage, inflammation, fibrosis and calcific bridge formation were assessed. Results were statistically analysed using anova and Tukey's tests. RESULTS Nano eggshell particles were spherical with a 20 nm diameter and were composed mainly of calcite. Statistical analysis showed that there was a significant increase in the release of all investigated ions between days 1 and 28, except for copper. NES group showed a significantly higher release of all elements as compared to Ca(OH)2 . Environmental scanning electron microscope micrographs of NES incubated for 7 days in SBF showed the formation of HAp with a Ca/P ratio (1.686). For histopathological evaluation, the difference between groups was statistically significant. At day 28, 75% of the pulps of the Ca(OH)2 group showed mild calcific bridge in comparison with 100% moderate calcific bridge in the NES group. The NES group showed significantly less inflammation at days 7 and 28, and higher fibrosis at day 7 compared with Ca(OH)2 . CONCLUSIONS Nano eggshell-based slurry represents a promising novel direct pulp-capping material with favourable pulp tissue response.
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Affiliation(s)
| | - Aiah A El-Rashidy
- Biomaterials Department, Faculty of Dentistry, Cairo university, Cairo, Egypt
| | - Sara El Moshy
- Oral Biology Department, Faculty of Dentistry, Cairo university, Cairo, Egypt
| | - Marwa M S Abbas
- Oral Biology Department, Faculty of Dentistry, Cairo university, Cairo, Egypt
| | - Gihan Waly
- Biomaterials Department, Faculty of Dentistry, Cairo university, Cairo, Egypt
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Gurucharan I, Saravana Karthikeyan B, Mahalaxmi S, Baskar K, Rajkumar G, Dhivya V, Kishen A, Sankaranarayanan S, Gurucharan N. Characterization of nano-hydroxyapatite incorporated carboxymethyl chitosan composite on human dental pulp stem cells. Int Endod J 2023; 56:486-501. [PMID: 36565040 DOI: 10.1111/iej.13885] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/25/2022]
Abstract
AIM To compare the odontogenic differentiation potential of a composite scaffold (CSHA) comprising of nano-hydroxyapatite (nHAp) and carboxymethyl chitosan (CMC) with Biodentine on human dental pulp stem cells (hDPSCs). METHODOLOGY A CSHA scaffold was prepared through an ultrasonication route by adding nHAp and CMC (1:5 w/w) in water medium followed by freeze-drying. Physicochemical characterization was achieved using scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray diffraction and Fourier transform infrared spectroscopy. In-vitro bioactivity and pH assessments were done by soaking in simulated body fluid (SBF) for 28 days. The angiogenic and odontogenic differentiation abilities were assessed by expression of vascular endothelial growth factor (VEGF) and Dentine sialophosphoprotein (DSPP) markers on cultured hDPSCs by flow cytometry and RT-qPCR at 7, 14 and 21 days. Cell viability/proliferation and biomineralization abilities of CSHA were compared with Biodentine by MTT assay, alkaline phosphatase (ALP) activity, Alizarin Red Staining (ARS) and osteopontin (OPN) expression on hDPSCs following 7 and 14 days. Data were statistically analysed with Kruskal Wallis and Friedman tests as well as one way anova followed by appropriate post hoc tests (p < .05). RESULTS Characterization experiments revealed a porous microstructure of CSHA with pore diameter ranging between 60 and 200 μm and 1.67 Ca/P molar ratio along with the characteristic functional groups of both HAp and CMC. CSHA displayed bioactivity in SBF by forming apatite-like crystals and maintained a consistent pH value of 7.70 during 28 days' in vitro studies. CSHA significantly upregulated VEGF and DSPP levels on hDPSCs on day 21 compared with day 7 (p < .05). Further, CSHA supported cell viability/proliferation over 14 days like Biodentine with no statistical differences (p > .05). However, CSHA exhibited increased ALP and ARS activity with an intense OPN staining compared with Biodentine after 14 days (p < .05). CONCLUSION The results highlighted the odontogenic differentiation and biomineralization abilities of CSHA on hDPSCs with significant VEGF and DSPP gene upregulations. Further, CSHA exhibited enhanced mineralization activity than Biodentine, as evidenced by increased ALP, ARS and OPN activity on day 14. The nHAp-CMC scaffold has the potential to act as an effective pulp capping agent; however, this needs to be further validated through in-vivo animal studies.
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Affiliation(s)
- Ishwarya Gurucharan
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Balasubramanian Saravana Karthikeyan
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Sekar Mahalaxmi
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Kaviya Baskar
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Gurusamy Rajkumar
- Department of Physics, Easwari Engineering College, Chennai, Tamil Nadu, India
| | - Vijayakumar Dhivya
- Department of Physics, Easwari Engineering College, Chennai, Tamil Nadu, India
| | - Anil Kishen
- Professor & Dr. Lloyd and Mrs. Kay Chapman Chair in Clinical Sciences, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
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Influence of strontium containing fluorophosphate glass onto structural and mechanical behavior of MTA network. J Mech Behav Biomed Mater 2023; 140:105750. [PMID: 36878080 DOI: 10.1016/j.jmbbm.2023.105750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/04/2023]
Abstract
OBJECTIVE This study aimed to evaluate the effect of incorporation of strontium based fluoro phosphate glass (SrFPG) 48P2O5-29CaO-14NaO-3CaF2-6SrO on physico chemical and biological properties of mineral trioxide aggregate (MTA). METHODS Optimized SrFPG glass powder were prepared using planetary ball mill and incorporated into MTA in varying proportion (1, 5, 10 wt%) to obtain SrMT1, SrMT5, SrMT10 bio-composite respectively. The bio-composites were characterized using XRD, FTIR and SEM-EDAX before and after soaking for 28 days in stimulated body fluid (SBF) solution. To assess the mechanical properties and biocompatibility of the prepared bio-composite, density, pH analysis, compressive strength and cytotoxicity evaluation using MTT assay were done before and after soaking for 28 days in SBF solution. RESULTS A nonlinear variation in compressive strength and pH values was noted. Of the bio-composites, SrMT10 was evidenced with rich apatite formation in XRD, FTIR and SEM with EDAX analysis. MTT assay showed increased cell viability in all the samples before and after in vitro studies.
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15
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Diniz AC, Bauer J, Veloso SDAR, Abreu-Pereira CA, Carvalho CN, Leitão TJ, Firoozmand LM, Maia-Filho EM. Effect of Bioactive Filler Addition on the Mechanical and Biological Properties of Resin-Modified Glass Ionomer. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1765. [PMID: 36902881 PMCID: PMC10004000 DOI: 10.3390/ma16051765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/05/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
The maintenance of affected dentin can promote the greater conservation of tooth structure. The development of materials that have properties capable of reducing the demineralizing potential and/or even helping in dental remineralization is important for conservative dentistry. This study aimed to evaluate, in vitro, the alkalizing potential, fluoride as well as calcium ion release ability, antimicrobial activity, and dentin remineralization properties of resin-modified glass ionomer cement (RMGIC) incorporated with a bioactive filler (niobium phosphate (NbG) and bioglass (45S5)). The study samples were grouped into RMGIC, NbG, and 45S5. The materials' alkalizing potential, ability to release calcium as well as fluoride ions, and antimicrobial properties concerning Streptococcus mutans UA159 biofilms were analyzed. The remineralization potential was evaluated using the Knoop microhardness test, which was performed at different depths. The alkalizing and fluoride release potential was higher for the 45S5 group (p < 0.001) over time. An increase in the microhardness of demineralized dentin was observed in the 45S5 and NbG groups (p < 0.001). No differences in biofilm formation were observed between the bioactive materials, although 45S5 exhibited lower biofilm acidogenicity at different time points (p < 0.001) and greater calcium ion release in the microbial environment. A resin-modified glass ionomer cement enriched with bioactive glasses, particularly 45S5, is a promising alternative for the treatment of demineralized dentin.
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Affiliation(s)
- Ana Carolina Diniz
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - José Bauer
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | | | - César Augusto Abreu-Pereira
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - Ceci Nunes Carvalho
- Department of Postgraduate Program in Dentistry, CEUMA University, São Luis 65075-120, MA, Brazil
| | - Tarcísio Jorge Leitão
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - Leily Macedo Firoozmand
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
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16
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Mangal U, Kang TY, Jung JW, Kim JY, Seo JY, Cha JY, Lee KJ, Yu HS, Kim KM, Kim JM, Kwon JS, Choi SH. Polybetaine-enhanced hybrid ionomer cement shows improved total biological effect with bacterial resistance and cellular stimulation. Biomater Sci 2023; 11:554-566. [PMID: 36472228 DOI: 10.1039/d2bm01428a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Hybrid ionomer cements (HICs) are aesthetic polyelectrolyte cements that have been modified with a resin. The setting of HICs occurs by both monomer polymerization and an acid-base reaction. In addition, HICs contain a resin, which is substituted for water. Thus, the competition between the setting reactions and reduced water content inherently limits polysalt formation and, consequently the bioactive interactions. In this study, we explored the effects of polybetaine zwitterionic derivatives (mZMs) on the augmentation of the bioactive response of HICs. The polybetaines were homogenized into an HIC in different proportions (α, β, and γ) at 3% w/v. Following basic characterization, the bioactive response of human dental pulp stem cells (hDPSCs) was evaluated. The augmented release of the principal constituent ions (strontium, silica, and fluoride) from the HIC was observed with the addition of the mZMs. Modification with α-mZM elicited the most favorable bioactive response, namely, increased ion elution, in vitro calcium phosphate precipitation, and excellent biofouling resistance, which deterred the growth of the bridging species of Veillonella. Moreover, α-mZM resulted in a significant increase in the hDPSC response, as confirmed by a significant increase (p < 0.05) in alizarin red staining. The results of mRNA expression tests, performed using periodically refreshed media, showed increased and early peak expression levels for RUNX2, OCN, and OPN in the case of α-mZM. Based on the results of the in vitro experiments, it can be concluded that modification of HICs with polybetaine α-mZM can augment the overall biological response.
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Affiliation(s)
- Utkarsh Mangal
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Tae-Yun Kang
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Ju Won Jung
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. .,Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 08826, South Korea.
| | - Ji-Yeong Kim
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. .,BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ji-Young Seo
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Jung-Yul Cha
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Kee-Joon Lee
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Hyung-Seog Yu
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Jin-Man Kim
- Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 08826, South Korea.
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. .,BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sung-Hwan Choi
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. .,BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Hu N, Li W, Jiang W, Wen J, Gu S. Creating a Microenvironment to Give Wings to Dental Pulp Regeneration-Bioactive Scaffolds. Pharmaceutics 2023; 15:158. [PMID: 36678787 PMCID: PMC9861529 DOI: 10.3390/pharmaceutics15010158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/13/2022] [Accepted: 12/23/2022] [Indexed: 01/05/2023] Open
Abstract
Dental pulp and periapical diseases make patients suffer from acute pain and economic loss. Although root canal therapies, as demonstrated through evidence-based medicine, can relieve symptoms and are commonly employed by dentists, it is still difficult to fully restore a dental pulp's nutrition, sensory, and immune-regulation functions. In recent years, researchers have made significant progress in tissue engineering to regenerate dental pulp in a desired microenvironment. With breakthroughs in regenerative medicine and material science, bioactive scaffolds play a pivotal role in creating a suitable microenvironment for cell survival, proliferation, and differentiation, following dental restoration and regeneration. This article focuses on current challenges and novel perspectives about bioactive scaffolds in creating a microenvironment to promote dental pulp regeneration. We hope our readers will gain a deeper understanding and new inspiration of dental pulp regeneration through our summary.
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Affiliation(s)
- Nan Hu
- Department of Endodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Weiping Li
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
- Department of Oral and Maxillofacial Head & Neck Oncology, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Wentao Jiang
- Department of Endodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Jin Wen
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai 200125, China
| | - Shensheng Gu
- Department of Endodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
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Pelepenko LE, Marciano MA, Francati TM, Bombarda G, Bessa Marconato Antunes T, Sorrentino F, Martin RA, Boanini E, Cooper PR, Shelton RM, Camilleri J. Can strontium replace calcium in bioactive materials for dental applications? J Biomed Mater Res A 2022; 110:1892-1911. [PMID: 35770805 PMCID: PMC9796236 DOI: 10.1002/jbm.a.37421] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 01/01/2023]
Abstract
The substitution of calcium with strontium in bioactive materials has been promising but there has been some concern over the material instability and possible toxicity. The aim of this research was the synthesis and characterization of calcium and strontium substituted bioactive materials and assessment of interactions with local tissues and peripheral elemental migration in an animal model. A bioactive glass, hydroxyapatite and hydraulic calcium silicate with 50% or 100% calcium substitution with strontium were developed and the set materials were characterized immediately after setting and after 30 and 180-days in solution. Following subcutaneous implantation, the local (tissue histology, elemental migration) and systemic effects (elemental deposition after organ digestion) were assessed. The strontium-replaced silicate cements resulted in the synthesis of partially substituted phases and strontium leaching at all-time points. The strontium silicate implanted in the animal model could not be retrieved in over half of the specimens showing the high rate of material digestion. Tissue histology showed that all materials caused inflammation after 30 days of implantation however this subsided and angiogenesis occurred after 180 days. Strontium was not detected in the local tissues or the peripheral organs while all calcium containing materials caused calcium deposition in the kidneys. The tricalcium silicate caused elemental migration of calcium and silicon in the local tissues shown by the elemental mapping but no deposition of calcium was identified in the peripheral organs verified by the assessment of the digested tissues. Strontium can substitute calcium in bioactive materials without adverse local or systemic effects.
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Affiliation(s)
| | | | | | - Gabriela Bombarda
- School of Dentistry of PiracicabaState University of CampinasPiracicabaBrazil
| | | | | | | | - Elisa Boanini
- Department of Chemistry, “Giacomo Ciamician”University of BolognaBolognaItaly
| | - Paul Roy Cooper
- Department of Oral ScienceSir John Walsh Research Institute, University of OtagoDunedinNew Zealand
| | - Richard Michael Shelton
- School of Dentistry, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Josette Camilleri
- School of Dentistry, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
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Dotta TC, Hayann L, de Padua Andrade Almeida L, Nogueira LFB, Arnez MM, Castelo R, Cassiano AFB, Faria G, Martelli-Tosi M, Bottini M, Ciancaglini P, Catirse ABCEB, Ramos AP. Strontium Carbonate and Strontium-Substituted Calcium Carbonate Nanoparticles Form Protective Deposits on Dentin Surface and Enhance Human Dental Pulp Stem Cells Mineralization. J Funct Biomater 2022; 13:jfb13040250. [PMID: 36412891 PMCID: PMC9680411 DOI: 10.3390/jfb13040250] [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: 10/25/2022] [Revised: 11/09/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Strontium acetate is applied for dental hypersensitivity treatment; however, the use of strontium carbonates for this purpose has not been described. The use of Sr-carbonate nanoparticles takes advantage of both the benefits of strontium on dentin mineralization and the abrasive properties of carbonates. Here in, we aimed to synthesize strontium carbonate and strontium-substituted calcium carbonate nanoparticles and test them as potential compounds in active dentifrices for treating dental hypersensitivity. For this, SrCO3, Sr0.5Ca0.5CO3, and CaCO3 nanoparticles were precipitated using Na2CO3, SrCl2, and/or CaCl2 as precursors. Their morphology and crystallinity were evaluated by electron microscopy (SEM) and X-ray diffraction, respectively. The nanoparticles were added to a poly (vinyl alcohol) gel and used to brush dentin surfaces isolated from human third molars. Dentin chemical composition before and after brushing was investigated by infrared spectroscopy (FTIR) and X-ray dispersive energy spectroscopy. Dentin tubule morphology, obliteration, and resistance of the coatings to acid attack were investigated by SEM and EDS. The cytotoxicity and ability of the particles to trigger the mineralization of hDPSCs in vitro were studied. Dentin brushed with the nanoparticles was coated by a mineral layer that was also able to penetrate the tubules, while CaCO3 remained as individual particles on the surface. FTIR bands related to carbonate groups were intensified after brushing with either SrCO3 or Sr0.5Ca0.5CO3. The shift of the phosphate-related FTIR band to a lower wavenumber indicated that strontium replaced calcium on the dentin structure after treatment. The coating promoted by SrCO3 or Sr0.5Ca0.5CO3 resisted the acid attack, while calcium and phosphorus were removed from the top of the dentin surface. The nanoparticles were not toxic to hDPSCs and elicited mineralization of the cells, as revealed by increased mineral nodule formation and enhanced expression of COL1, ALP, and RUNX2. Adding Sr0.5Ca0.5CO3 as an active ingredient in dentifrices formulations may be commercially advantageous since this compound combines the well-known abrasive properties of calcium carbonate with the mineralization ability of strontium, while the final cost remains between the cost of CaCO3 and SrCO3. The novel Sr0.5Ca0.5CO3 nanoparticles might emerge as an alternative for the treatment of dental hypersensitivity.
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Affiliation(s)
- Tatiane Cristina Dotta
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto 14040-904, Brazil
| | - Larwsk Hayann
- Department of Chemistry, Ribeirão Preto Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, Brazil
| | - Leonardo de Padua Andrade Almeida
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto 14040-904, Brazil
| | - Lucas Fabrício B. Nogueira
- Department of Chemistry, Ribeirão Preto Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, Brazil
| | - Mayara M. Arnez
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto 14040-904, Brazil
| | - Raisa Castelo
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto 14040-904, Brazil
| | - Ana Flávia B. Cassiano
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University (UNESP), Araraquara 14801-385, Brazil
| | - Gisele Faria
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University (UNESP), Araraquara 14801-385, Brazil
| | - Milena Martelli-Tosi
- Department of Chemistry, Ribeirão Preto Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, Brazil
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13645-900, Brazil
| | - Massimo Bottini
- Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Pietro Ciancaglini
- Department of Chemistry, Ribeirão Preto Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, Brazil
| | - Alma B. C. E. B. Catirse
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto 14040-904, Brazil
| | - Ana Paula Ramos
- Department of Chemistry, Ribeirão Preto Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, Brazil
- Correspondence:
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20
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Lee J, Hwang G, Gug H, Lee JH, Park SJ, Park JC. Desensitizing toothpastes for dentin sealing and tertiary dentin formation in vitro and in vivo: a comparative analysis. BMC Oral Health 2022; 22:483. [PMID: 36368979 PMCID: PMC9652853 DOI: 10.1186/s12903-022-02558-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 11/03/2022] [Indexed: 11/13/2022] Open
Abstract
Background Dentin hypersensitivity is a painful response to external stimuli applied to exposed dentinal tubules. Various toothpastes with active desensitizing ingredients for the relief of dentin hypersensitivity are commercially available. However, data from several studies suggest that the effects of desensitizing toothpastes are unstable and brief. This study aimed to investigate the effect of toothpastes containing CPNE7-derived oligopeptide (CPNE7-DP) and other active desensitizing ingredients in the dentin microleakage, tubule occlusion and tertiary dentin formation. Methods Using scanning electron microscopy (SEM), we evaluated the patency of dentinal tubules on the surface of human dentin disks after brushing experiments with the various toothpastes. Dentin was histologically evaluated in a hypersensitivity model of canine teeth, after the exposed dentin area was brushed for 6 weeks. The toothpaste used in group 1 (control) did not contain any desensitizing ingredients; that used in group 2 contained CPNE7-DP; Colgate Sensitive was used in group 3; and Sensodyne Rapid Relief was used in group 4. Finally, we conducted microleakage analysis to investigate the dentin sealing effect. The microleakage analysis data were subjected to one-way ANOVA and post-hoc Tukey tests (alpha = 0.05). Results In the SEM images, all four groups of teeth exhibited partial occlusion of the dentinal tubules on the tooth surface. In the in vivo hypersensitivity model, group 2 exhibited a newly formed tertiary dentin, whereas no new hard tissue formation was observed in groups 1, 3, and 4. Microleakage analysis revealed that the volume of dentinal fluid flow was significantly smaller in group 2 than in group 1. Conclusions These results indicate that CPNE7-DP is a promising active ingredient with long-term dentin sealing effects. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02558-8.
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Agarwal M, Dinesh K, Mathew S, Ramesh P, Shetty NK, Narayana IH. Evaluation of the effect of remineralization with strontium-doped nanohydroxyapatite with noncollagenous protein analog: Chitosan on the shear bond strength of resin composite to dentin - An in vitro study. J Conserv Dent 2022; 25:648-653. [PMID: 36591584 PMCID: PMC9795681 DOI: 10.4103/jcd.jcd_285_22] [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: 05/14/2022] [Revised: 07/07/2022] [Accepted: 07/14/2022] [Indexed: 11/06/2022] Open
Abstract
Context The resin-dentin interface is less durable, which reduces the longevity of tooth-colored restorations. To encounter this shortcoming, the use of nanotechnology to mimic biomineralization proves beneficial. Aims This study was conducted to evaluate the effect of remineralization with strontium-doped nanohydroxyapatite (Sr-nHAp) with chitosan on shear bond strength of resin composite to dentin. Materials and Methods Sixty five extracted human premolars were divided into five groups (n = 13) based on remineralization protocol as: Group A - 20% (Sr-nHAp) with chitosan, Group B - 10% (Sr-nHAp) with chitosan, Group C - 20% (Sr-nHAp) with simulated body fluid, Group D - 10% (Sr-nHAp) with simulated body fluid, and Group E - control. Following bonding, resin composite of specified dimension was built and was subjected to shear bond strength test after 24 h and 1 week using Universal Testing Machine, and mode of failure was assessed. ANOVA and paired sample t-test were used for analyzing the data, and the level of significance was set at 5%. Results The highest value of shear bond strength was obtained from Group A after aging for a week, and there is a significant increase in the value of all the groups as compared to the control group after 1 week of storage than 24 h. Conclusions Remineralization with Sr-nHAp and chitosan has positively improved the bond strength of resin to dentin at the end of 1 week.
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Affiliation(s)
- Manila Agarwal
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - K. Dinesh
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Sylvia Mathew
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Poornima Ramesh
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Nithin Kumar Shetty
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Indiresha H. Narayana
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
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22
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Abdalla MM, Lung CYK, Bijle MN, Yiu CKY. Physicochemical Properties and Inductive Effect of Calcium Strontium Silicate on the Differentiation of Human Dental Pulp Stem Cells for Vital Pulp Therapies: An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5854. [PMID: 36079235 PMCID: PMC9457449 DOI: 10.3390/ma15175854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
The development of biomaterials that exhibit profound bioactivity and stimulate stem cell differentiation is imperative for the success and prognosis of vital pulp therapies. The objectives were to (1) synthesize calcium strontium silicate (CSR) ceramic through the sol−gel process (2) investigate its physicochemical properties, bioactivity, cytocompatibility, and its stimulatory effect on the differentiation of human dental pulp stem cells (HDPSC). Calcium silicate (CS) and calcium strontium silicate (CSR) were synthesized by the sol−gel method and characterized by x-ray diffraction (XRD). Setting time, compressive strength, and pH were measured. The in vitro apatite formation was evaluated by SEM-EDX and FTIR. The NIH/3T3 cell viability was assessed using an MTT assay. The differentiation of HDPSC was evaluated using alkaline phosphatase activity (ALP), and Alizarin red staining (ARS). Ion release of Ca, Sr, and Si was measured using inductive coupled plasma optical emission spectroscopy (ICP-OES). XRD showed the synthesis of (CaSrSiO4). The initial and final setting times were significantly shorter in CSR (5 ± 0.75 min, 29 ± 1.9 min) than in CS (8 ± 0.77 min, 31 ± 1.39 min), respectively (p < 0.05). No significant difference in compressive strength was found between CS and CSR (p > 0.05). CSR demonstrated higher apatite formation and cell viability than CS. The ALP activity was significantly higher in CSR 1.16 ± 0.12 than CS 0.92 ± 0.15 after 14 d of culture (p < 0.05). ARS showed higher mineralization in CSR than CS after 14 and 21 d culture times. CSR revealed enhanced differentiation of HDPSC, physicochemical properties, and bioactivity compared to CS.
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Affiliation(s)
- Mohamed Mahmoud Abdalla
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Cairo 11651, Egypt
| | - Christie Y. K. Lung
- Dental Materials Science, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Mohammed Nadeem Bijle
- Paediatric Dentistry, Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Cynthia Kar Yung Yiu
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Bioinductive and anti-inflammatory properties of Propolis and Biodentine on SHED. Saudi Dent J 2022; 34:544-552. [PMID: 36267530 PMCID: PMC9577971 DOI: 10.1016/j.sdentj.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 12/02/2022] Open
Abstract
Objectives This study aimed to evaluate and compare the cell viability, differentiation potential and anti-inflammatory potential of propolis and Biodentine™ on stem cells isolated from human exfoliated deciduous teeth (SHED). Materials and methods SHED were segregated and cultured from the dental pulp of children after therapeutic extraction. Microculture Tetrazolium Assay (MTT) assay was carried out for assessing cell proliferation potential of propolis and Biodentine at different concentrations. As per the results from cell proliferation assay, cell differentiation potential of SHED was evaluated at concentration of 12.5 μg/ml using Alizarin Red staining. The anti-inflammatory potential of test materials was evaluated using gelatin zymography by detecting MMP-2 and MMP-9. Results The maximum cell proliferation percentage of SHED treated with propolis and Biodentine was observed at a concentration of 12.5 μg/ml, on day 7, 14 and 21 with Biodentine having maximum cell proliferation potential followed by propolis. SHED treated with Biodentine showed maximum cell differentiation on day 7 (107.16), 14 (106.29) and 21 (107.72). However, anti-inflammatory activity against MMP-2 was 95 % with propolis and 85 % with Biodentine and whereas, against MMP-9 it was 65 % for propolis and 47 % for Biodentine. Conclusion Propolis shows comparable cell viability, cell proliferation and differentiation potential on SHED when compared to Biodentine. It also exhibits better invitro anti-inflammatory activity on SHED compared to Biodentine. Further studies are warranted to validate the application of propolis as an effective and economical alternative biocompatible agent to Biodentine for vital pulp therapies.
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Saghiri MA, Vakhnovetsky J, Vakhnovetsky A, Ghobrial M, Nath D, Morgano SM. Functional role of inorganic trace elements in dentin apatite tissue-Part 1: Mg, Sr, Zn, and Fe. J Trace Elem Med Biol 2022; 71:126932. [PMID: 35101699 DOI: 10.1016/j.jtemb.2022.126932] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/16/2021] [Accepted: 01/14/2022] [Indexed: 12/19/2022]
Abstract
Many essential elements exist in nature with significant influence on dentin and bone apatite tissue. Hydroxyapatite (HAp) is the major inorganic crystalline structure of dentin that provides a site for various physiological functions such as surface layer ion exchange. Decades of apatite research have shown that enamel is a high-substituted crystalline apatite, but recent findings suggest that dentin apatite may play a more important role in regulating ion exchange as well as mineral crystallinity. This article is the first part of a review series on the functional role of inorganic trace elements including magnesium, strontium, zinc, and iron in dentin hydroxyapatite. The morphology, physiology, crystallinity, and solubility of these elements as they get substituted into the HAp lattice are extensively discussed. An electronic search was performed on the role of these elements in dentin apatite from January 2007 to September 2021. The relationship between different elements and their role in the mineral upkeep of dentin apatite was evaluated. Several studies recognized the role of these elements in dentinal apatite composition and its subsequent effects on morphology, crystallinity, and solubility. These elements are of great importance in physiological processes and an essential part of living organisms. Magnesium and strontium stimulate osteoblast activity, while zinc can improve overall bone quality with its antibacterial properties. Iron nanoparticles are also vital in promoting bone tissue growth as they donate or accept electrons in redox reactions. Thus, understanding how these elements impact dentin apatite structure is of great clinical significance.
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Affiliation(s)
- Mohammad Ali Saghiri
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States; Department of Endodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, CA, United States.
| | - Julia Vakhnovetsky
- Sector of Angiogenesis Regenerative Medicine, Dr. Hajar Afsar Lajevardi Research Cluster (DHAL), Hackensack, NJ, United States; Rutgers School of Dental Medicine, Newark, NJ, United States
| | | | - Marina Ghobrial
- New Jersey Institute of Technology, Newark, NJ, United States
| | - Devyani Nath
- Biomaterial and Prosthodontics Laboratory, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States
| | - Steven M Morgano
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States
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Raddall G, Mello I, M Leung B. Effects of intracanal antimicrobials on viability and differentiation of stem cells from the apical papilla – an in vitro study. J Endod 2022; 48:880-886. [DOI: 10.1016/j.joen.2022.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 03/21/2022] [Accepted: 04/01/2022] [Indexed: 12/11/2022]
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26
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Liu C, Hao Z, Yang T, Wang F, Sun F, Teng W. Anti-Acid Biomimetic Dentine Remineralization Using Inorganic Silica Stabilized Nanoparticles Distributed Electronspun Nanofibrous Mats. Int J Nanomedicine 2022; 16:8251-8264. [PMID: 34992364 PMCID: PMC8710523 DOI: 10.2147/ijn.s331321] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/24/2021] [Indexed: 12/14/2022] Open
Abstract
Background To manage the sharp pain of dentine hypersensitivity, various materials are utilized to conduct dentine remineralization. However, many prior materials are limited with their single function and complicated operations. In this study, silica and calcium (strontium) carbonates mineralized nano cellulose fibrous (Si/Ca(Sr)-NCF) mat with the ability to release acid resistant and biomimetic mineralizational silica/calcium (strontium) carbonate co-precipitation nanoparticles (Si/Ca(Sr) NPs) were fabricated. The dentine occluding effects, antibacterial activity and cytocompatibility of the Si/Ca(Sr)-NCF mats were evaluated. Methods The Si/Ca(Sr)-NCF mats were fabricated by dipping the electrospun nano cellulose fiber (NCF) into silica and calcium (strontium) carbonate liquid. Physicochemical characterizations and ion release were confirmed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), ion release assays and transmission electron microscopy (TEM). Sixty dentine discs were randomly divided into five groups: 1, blank NCF; 2, Si/Ca(Sr 0)-NCF; 3, Si/Ca(Sr 0.01)-NCF; 4, Si/Ca(Sr 0.05)-NCF; 5, Si/Ca(Sr 0.1)-NCF. Dentine discs were mineralized by the mats and observed with SEM immediately, after acid challenge and remineralized in artificial saliva. The releasing liquid was investigated by TEM and type I collagen model. Then, antibacterial property and cytocompatibility were evaluated. Results SEM and TEM results confirmed that the experiment mats continuously released amorphous Si/Ca(Sr) NPs and consequently realized anti-acid dentine biomimetic remineralization. Homogeneous surface coverage and collagen intrafibrillar mineralization in strontium adding groups illustrated the mineralization effect was not only by in site precipitation, but also collagen heterogeneous nucleation. Additionally, acceptable antibacterial and cytocompatibility properties were illustrated in low and middle Sr2+ containing mats. Conclusion In vitro studies on human dentine discs and type I collagen demonstrated that Si/Ca(Sr)–NCF system was a multifunction system inducing anti-acid, biomimetic, antibacterial and cytocompatible dentine remineralization. This multifunction mat would be a promising DH treatment candidate for complicated exposed dentine surfaces.
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Affiliation(s)
- Chuanzi Liu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Zhichao Hao
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Tao Yang
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Fushi Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei - MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Feng Sun
- Analysis and Testing Center, South China Normal University, Guangzhou, People's Republic of China
| | - Wei Teng
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
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Biocompatibility and pro-mineralization effect of tristrontium aluminate cement for endodontic use. J Dent Sci 2022; 17:1193-1200. [PMID: 35784112 PMCID: PMC9236952 DOI: 10.1016/j.jds.2021.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/25/2021] [Indexed: 11/23/2022] Open
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Zhu JY, Cheng L, Zhao YM, Li MY, Wang ZZ, Wang J, Wang C, Wang KY. Structural Investigation on the Efficient Capture of Cs+ and Sr2+ by a Microporous Cd-Sn-Se Ion Exchanger Constructed from Mono-Lacunary Supertetrahedral Clusters. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00338d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visualization of the ion exchange mechanism for 137Cs and 90Sr decontamination bears significance for safe radioactive liquid waste reprocessing and emergency response enhancement to nuclear accident. Here, the remediation of...
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Neu5Ac Induces Human Dental Pulp Stem Cell Osteo-/Odontoblastic Differentiation by Enhancing MAPK/ERK Pathway Activation. Stem Cells Int 2021; 2021:5560872. [PMID: 34603453 PMCID: PMC8483915 DOI: 10.1155/2021/5560872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/26/2021] [Accepted: 08/09/2021] [Indexed: 01/09/2023] Open
Abstract
Dental pulp stem cells (DPSCs) must undergo odontoblastic differentiation in order to facilitate the process of dentin-pulp complex repair. Herein, we sought to explore the ability of Neu5Ac (one form of sialic acid) to influence DPSC osteo-/odontoblastic differentiation via modulating mitogen-activated protein kinase (MAPK) signaling. Methodology. DPSCs were isolated from human third permanent teeth and were grown in vitro. Fluorescent microscopy was used to detect the existence of sialic acid on the DPSC membrane. Following the treatment of different concentrations of Neu5Ac and removing sialic acid from the cell surface by neuraminidase, the osteo-/odontoblastic differentiation of these cells was evaluated via mineralization, alkaline phosphatase, and in vivo assays. In addition, the expression of genes related to osteo-/odontoblastic differentiation and MAPK signaling at different stages of this differentiation process was analyzed in the presence or absence of Neu5Ac. Results. The existence of sialic acid on the DPSC membrane was confirmed by fluorescent microscopy, and the ability of osteo-/odontoblastic differentiation was decreased after removing sialic acid by neuraminidase. Treatment of DPSCs with Neu5Ac (0.1 mM or 1 mM) significantly enhanced their mineralization ability and alkaline phosphatase activity. The expression levels of DMP1, DSPP, BSP, and RUNX2 were also increased. Treatment of nude mice with ManNAc (the prerequisite form of Neu5Ac) also enhanced DPSC mineralization activity in vivo. Furthermore, Neu5Ac treatment enhanced p-ERK expression in DPSCs, while ERK pathway inhibition disrupted the ability of Neu5Ac to enhance the osteo-/odontoblastic differentiation of these cells. Conclusions. Neu5Ac can promote DPSC osteo-/odontoblastic differentiation through a process associated with the modulation of the ERK signaling pathway activity.
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Acevedo LA, Campos LA, Dechandt IC, Alegria G, Siqueira RL, Zanotto ED, Carlos Serbena F, Santos FA. Effect of bioactive glasses containing strontium and potassium on dentin permeability. J Biomed Mater Res B Appl Biomater 2021; 110:517-526. [PMID: 34498810 DOI: 10.1002/jbm.b.34931] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 08/13/2021] [Accepted: 08/22/2021] [Indexed: 11/08/2022]
Abstract
Dentin hypersensitivity (DH) is characterized by pain caused by an external stimulus on exposed dentin. Different therapeutic approaches have been proposed to mitigate this problem; however, none of them provide permanent pain relief. In this study, we synthesized and characterized experimental bioactive glasses containing 3.07 mol% SrO or 3.36 mol% K2 O (both equivalent to 5 wt% in the glass), and evaluated their effect on dentin permeability to verify their potential to treat DH. The experimental materials were characterized by field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, micro-Raman spectroscopy, and X-ray diffraction to confirm the respective structures and chemical compositions. The reduction in the hydraulic conductance of dentin was evaluated at the three stages: minimum permeability; maximum permeability (24% ethylenediaminetetraacetic acid [EDTA] treatment); and final dentin permeability after treatment with the bioactive glasses. They all promoted a reduction in dentin permeability, with a significant difference for each sample and posttreatment group. Also, a significant reduction in dentin permeability was observed even after a simulated toothbrushing test, demonstrating effective action of these materials against DH. Besides, incorporating 3.07 mol% SrO was a positive factor. Therefore, strontium's desensitizing and re-mineralizing properties can be further exploited in bioactive glasses to promote a synergistic effect to treat DH.
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Affiliation(s)
- Luisa Alegria Acevedo
- School of Dentistry, State University of Ponta Grossa, UEPG, Ponta Grossa, PR, Brazil
| | | | | | - Gustavo Alegria
- Department of Dentistry, University of Valle, Santiago de Cali, Valle del Cauca, Colombia
| | - Renato Luiz Siqueira
- Department of Materials Engineering, Federal University of São Carlos, UFSCar, São Carlos, SP, Brazil
| | - Edgar Dutra Zanotto
- Department of Materials Engineering, Federal University of São Carlos, UFSCar, São Carlos, SP, Brazil
| | | | - Fabio André Santos
- School of Dentistry, State University of Ponta Grossa, UEPG, Ponta Grossa, PR, Brazil
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Peng W, Huan Z, Pei G, Li J, Cao Y, Jiang L, Zhu Y. Silicate bioceramics elicit proliferation and odonto-genic differentiation of human dental pulp cells. Dent Mater J 2021; 41:27-36. [PMID: 34408120 DOI: 10.4012/dmj.2021-042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to investigate the effects of silicates on the proliferation and odontogenic differentiation of human dental pulp cells (hDPCs) in vitro. HDPCs were cultured in the presence of calcium silicate (CS) extracts, while calcium hydroxide (CH) extracts and culture medium without CH or CS were used as the control groups. The calcium and phosphorus ion concentrations in the CS were similar to those in the control groups, but the concentration of silicon ions in the CS extracts was higher than that in the control groups. HDPCs cultured with CS and CH extracts at dilution of 1/128 proliferated significantly more than those cultured with the control treatments. CS extracts promoted cell migration, enhanced the expression of odontogenic marker genes and conspicuously increased odontogenesis-related protein production and the release of cytokines, suggesting that CS bioactive ceramics possess excellent biocompatibility and bioactivity and have the potential for application as pulp-capping agents.
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Affiliation(s)
- Weiwei Peng
- Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
| | - Zhiguang Huan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
| | - Ge Pei
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences.,College of Chemistry and Materials Science, Shanghai Normal University
| | - Jinheng Li
- Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
| | - Ying Cao
- Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
| | - Long Jiang
- Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
| | - Yaqin Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
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Pompeu DDS, de Paula BLF, Barros APO, Nunes SC, Carneiro AMP, Araújo JLN, Silva CM. Combination of strontium chloride and photobiomodulation in the control of tooth sensitivity post-bleaching: A split-mouth randomized clinical trial. PLoS One 2021; 16:e0250501. [PMID: 33909659 PMCID: PMC8081218 DOI: 10.1371/journal.pone.0250501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 04/06/2021] [Indexed: 01/10/2023] Open
Abstract
Objective This split-mouth randomized controlled clinical trial assessed the effect of 10% strontium chloride in combination with photobiomodulation (PBM) for the control of tooth sensitivity (TS) post-bleaching. Methods The upper/lower, right and left quadrants of fifty volunteers were randomized and allocated to four groups (n = 25): PLACEBO—placebo gel + simulation of PBM; Placebo + PBM; STRONTIUM—10% strontium chloride + simulation of PBM; and PBM + STRONTIUM—10% strontium chloride + PBM. All groups received tooth bleaching treatment with 35% hydrogen peroxide. For the PBM treatment, the laser tip was positioned in the apical and cervical regions of the teeth bleached in the respective hemi-arch. The laser system was operated in continuous mode, using 1.7 J of energy. A dose of 60 J/cm2 was applied to each point for 16 seconds under 808 nm near-infrared light (100mW of power), with a point area of 0.028 cm2. TS was assessed during a 21-day follow-up, using the modified visual analogue scale. Results In the intragroup assessment, the Friedman test indicated that PBM + STRONTIUM promoted the greatest reduction in TS after the second week of treatment (p ≤ 0.05). The Wilcoxon-Mann-Whitney test indicated that the groups Placebo + PBM, STRONTIUM, and STRONTIUM + PBM did not differ statistically (p ≥ 0.05) in the first and third weeks of treatment The group PLACEBO exhibited the greatest TS in the first three days after each bleaching session. Conclusion The combination of 10% strontium chloride with PBM was effective in reducing post-bleaching TS; however, the combination of 10% strontium chloride with PBM was effective in reducing post-bleaching TS; however, it did not differ from the individual use of Placebo + PBM or STRONTIUM groups assessed after 21 days of follow-up.
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Affiliation(s)
| | | | | | | | | | | | - Cecy Martins Silva
- Postgraduate Program in Dentistry of the Federal University of Pará, Belem, Brazil
- * E-mail:
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Remineralizing effect of a new strontium-doped bioactive glass and fluoride on demineralized enamel and dentine. J Dent 2021; 108:103633. [PMID: 33716101 DOI: 10.1016/j.jdent.2021.103633] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE To investigate the remineralizing effect of a strontium-doped bioactive glass (HX-BGC) and fluoride on demineralized enamel and dentine. MATERIALS Sixty demineralized human tooth specimens were allocated to four groups. Group 1 received 5% HX-BGC, Group 2 received 5% HX-BGC and 1450 ppm fluoride, Group 3 received 1450 ppm fluoride, and Group 4 received deionized water as negative control. The specimens were subjected to pH cycling for 14 days. The surface morphology, lesion depths, crystal characteristics and collagen matrix degradation of the specimens were assessed by scanning electron microscopy (SEM), micro-computed tomography (mico-CT), X-ray diffraction (XRD), and spectrophotometry with a hydroxyproline (HYP) assay, respectively. RESULTS SEM images showed the enamel surface was smooth with regularly arranged enamel rods in Groups 1-3. Granular grains were observed in both inter-tubular and intra-tubular dentine in Groups 1-3. The mean lesion depths in enamel were 80.8 μm, 50.6 μm, 72.7 μm and 130.7 μm in Groups 1-4, respectively (p < 0.001), and those in dentine were 152.6 μm, 140.9 μm, 165.4 μm and 214.1 μm, respectively (p < 0.001). The differences in mean mineral loss in enamel and in dentine between the four study groups follow the same pattern as that of the differences in lesion depth. XRD illustrated apatite formation in each group. There were no significant differences in the HYP concentrations among the four groups (p = 0.261). CONCLUSION Combined use of HX-BGC and fluoride can reduce mineral loss and promote remineralization of demineralized enamel and dentine through the precipitation of newly formed apatite. CLINICAL SIGNIFICANCE Adjunctive use of HX-BGC may enhance the remineralization effect of fluoride in the management of early dental caries lesions.
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Remineralising fluorine containing bioactive glass composites. Dent Mater 2021; 37:672-681. [PMID: 33632523 DOI: 10.1016/j.dental.2021.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVES The objective was to investigate the mechanical properties, fluoride release and apatite formation of resin based dental composites based on a fluoride containing Bioactive Glass (BG) with and without a silylating agent. METHODS A SiO2-P2O5-CaO-SrO-Na2O-CaF2 BG was synthesized by the melt quench route. This glass and a commercially available inert glass (IG) were incorporated into a light cured BisGMA-TEGMA resin. The composite resins were then evaluated in terms of their ability to form apatite by Fourier Transform Infrared spectroscopy (FTIR) and by scanning electron microscopy (SEM) following immersion in artificial saliva at pH 4 (AS4) and pH 7 (AS7). The experiments were performed with and without silylation of the BG. The compressive strength and flexural strength were determined after 1, 28 and 84 days of immersion in the AS4 and AS7 immersion media. RESULTS The FTIR spectra of the BG composites exhibited split bands at approximately 560 and 600 cm-1 corresponding to a apatite formation in the surface or on the surface under all immersion conditions. SEM showed the presence of a reacted layer of glass particles in the composite surface and the presence of a surface layer of apatite in AS7. The compressive strength and flexural strength were significantly higher for the silylated BG composites. The strengths of both silylated and non silylated BG composites and IG composites decreased upon immersion. SIGNIFICANCE BG composites exhibit reduced strengths upon immersion but still exhibit strengths comparable to existing composites after 84 days of immersion.
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Iftikhar S, Jahanzeb N, Saleem M, Ur Rehman S, Matinlinna JP, Khan AS. The trends of dental biomaterials research and future directions: A mapping review. Saudi Dent J 2021; 33:229-238. [PMID: 34194185 PMCID: PMC8236547 DOI: 10.1016/j.sdentj.2021.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 12/10/2020] [Accepted: 01/03/2021] [Indexed: 12/24/2022] Open
Abstract
Objective This literature research aimed to compare, contrast and quantify the innovations in the most commonly used dental biomaterials. Methodology Original research articles based on experimental dental biomaterials published between 2007 and 2019 were retrieved and reviewed. A search of electronic databases, PubMed, Scopus, and Web of Science indexed dental/biomaterials journals, has been conducted. The inclusion criteria in this research were: synthesis of experimental dental materials, whereas commercial dental materials, review articles, and clinical trials (case reports) were excluded. Results It was found that the amount of publications related to dental subgingival implants, computer-aided modeling ceramics, aesthetic restorative materials, adhesives cements, ceramics, bioceramics, endodontic materials, bioactive scaffolds, stem cells, and guided-tissue membranes had increased significantly from 2007. At the same time, the number of publications related to dental cements, silver amalgam, and dental alloys has decreased. For characterization of dental materials it was noted that mechanical properties were tested mostly for restorative materials. On the other hand, biological properties were most assessed for dental subgingival implants and endodontic materials, however, physical properties predominantly for bioceramics. Conclusion It is concluded that to meet clinical demands there was more focus on restorative materials that provided better aesthetics, including resin composites, adhesive resin composites (luting cements), zirconia, and other ceramics. The boost in laboratory and animal research related to bioceramics was attributed to their regenerative potential. This current literature study will help growing researchers to consider and judge the direction to which research might be guided in order to plan prospective research projects.
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Affiliation(s)
- Sundus Iftikhar
- Department of Medical Education, Shalamar Medical and Dental College, Lahore 54000, Pakistan
| | - Noureen Jahanzeb
- Department of Dental Materials, University of Health Sciences, Lahore 54000, Pakistan
| | - Mehvish Saleem
- Department of Dental Biomaterials, Bakhtawar Amin Medical and Dental College, Multan 66000, Pakistan
| | - Shafiq Ur Rehman
- Deanship of Library Affairs, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Jukka Pekka Matinlinna
- Dental Materials Science, Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, P. R. China
| | - Abdul Samad Khan
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
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Zhong NY, Wang LP. [Research progress in the osteogenetic mechanism of strontium]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2020; 38:697-703. [PMID: 33377350 PMCID: PMC7738917 DOI: 10.7518/hxkq.2020.06.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/10/2020] [Indexed: 11/21/2022]
Abstract
Strontium (Sr) is an essential trace element and widely exists in nature. It plays an important role in the in vivo regulation of bone metabolism. Sr locates below Fe in the periodic table, and its chemical structure and polarity are similar to those of Ca. It can induce bone mesenchymal stem cells to differentiate into osteoblasts by inhibiting the activity of osteoclasts and reducing bone resorption. It promotes bone formation through a series of related pathways. The mechanism of Sr regulation of bone metabolism has been extensively researched in recent years. The current study aims to investigate the mechanism of Sr and provide a theoretical basis for its clinical application.
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Affiliation(s)
- Ning-Ying Zhong
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatological Hospital of Guangzhou Medical University, Guangzhou 510140, China;Stomatology Center, Shunde Hospital, Southern Medical University The First People's Hospital of Shunde, Foshan 528308, China
| | - Li-Ping Wang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatological Hospital of Guangzhou Medical University, Guangzhou 510140, China
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Mocquot C, Colon P, Fernando D, Jackson P, Pradelle-Plasse N, Grosgogeat B, Attik N. The influence of experimental bioactive glasses on pulp cells behavior in vitro. Dent Mater 2020; 36:1322-1331. [DOI: 10.1016/j.dental.2020.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/01/2020] [Accepted: 07/14/2020] [Indexed: 02/06/2023]
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Strontium Promotes the Proliferation and Osteogenic Differentiation of Human Placental Decidual Basalis- and Bone Marrow-Derived MSCs in a Dose-Dependent Manner. Stem Cells Int 2019; 2019:4242178. [PMID: 31885606 PMCID: PMC6893266 DOI: 10.1155/2019/4242178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 07/28/2019] [Accepted: 08/22/2019] [Indexed: 02/05/2023] Open
Abstract
The osteogenic potential of mesenchymal stromal cells (MSCs) varies among different tissue sources. Strontium enhances the osteogenic differentiation of bone marrow-derived MSCs (BM-MSCs), but whether it exerts similar effects on placental decidual basalis-derived MSCs (PDB-MSCs) remains unknown. Here, we compared the influence of strontium on the proliferation and osteogenic differentiation of human PDB- and BM-MSCs in vitro. We found that 1 mM and 10 mM strontium, but not 0.1 mM strontium, evidently promoted the proliferation of human PDB- and BM-MSCs. These doses of strontium showed a comparable alkaline phosphatase activity in both cell types, but their osteogenic gene expressions were promoted in a dose-dependent manner. Strontium at doses of 0.1 mM and 1 mM elevated several osteogenic gene expressions of PDB-MSCs, but not those of BM-MSCs at an early stage. Nevertheless, they failed to enhance the mineralization of either cell type. By contrast, 10 mM strontium facilitated the osteogenic gene expression as well as the mineralization of human PDB- and BM-MSCs. Collectively, this study demonstrated that human PDB- and BM-MSCs shared a great similarity in response to strontium, which promoted their proliferation and osteogenic differentiation in a dose-dependent manner.
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Chitra S, Bargavi P, Balasubramaniam M, Chandran RR, Balakumar S. Impact of copper on in-vitro biomineralization, drug release efficacy and antimicrobial properties of bioactive glasses. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110598. [PMID: 32229004 DOI: 10.1016/j.msec.2019.110598] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 12/10/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022]
Abstract
This study highlights the incorporation of copper in the bioactive glasses (BAG) network that greatly influences the morphological, structural and biological properties. By increasing the copper incorporation in BAG, increment in cell volume was obtained from XRD patterns, and concomitantly, dominant phosphate bands and latent silica bands were observed by FT-IR and Raman spectroscopic results. The Cu addition also affected particle appearance to vary from spherical to cluster-like cubes in 1.5% and 2.5% copper-doped BAG. Due to the mesoporous network 1.5% and 2.5% copper-doped BAG showed enhanced release of anti-inflammatory drugs such as Acetaminophen (ACE) and Ibuprofen (IBU) in which, the drug release profiles showed best fit with kinetic models of First order, Korsmeyar-Peppas and Higuchi. Copper doping influences the lattice of BAG, as a result morphology and porosity varied, which regulates the ionic dissolution, hence, prompting bioactivity was perceived from 1.5% and 2.5% copper-doped bioactive glasses (Cu-BGs). Moreover, 2.5% Cu-BG and 1.5% Cu-BG showed highest rate of ROS detection, as well as improved antimicrobial activity. This study established that up to certain proportion of copper incorporation in BAG network, potentially enhances the biomineralization and turns the morphology towards minimal size with mesoporous nature. Due to the abundance in oral microbial exposure, copper amplifies the superior antimicrobial properties, and Cu-BGs act as a drug carrier to load ACE and IBU, which potentially up-regulate the healing properties in dental application.
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Affiliation(s)
- S Chitra
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - P Bargavi
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - M Balasubramaniam
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - R Riju Chandran
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - S Balakumar
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India.
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Zhang M, Ni S, Zhang X, Lu J, Gao S, Yang Y, Wang Z, Sun H, Li Y. Dexamethasone-loaded hollow hydroxyapatite microsphere promotes odontogenic differentiation of human dental pulp cells in vitro. Odontology 2019; 108:222-230. [PMID: 31598795 DOI: 10.1007/s10266-019-00459-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 09/08/2019] [Indexed: 12/28/2022]
Abstract
A sustained-release system was established by synthesis of dexamethasone-loaded hollow hydroxyapatite microspheres (DHHAM). The in vitro effect of DHHAM on odontogenic differentiation of human dental pulp cells (hDPCs) was evaluated. Hollow hydroxyapatite microspheres (HHAM) are successfully manufactured using simple biomimetic one-step strategy in the presence of glycine and sodium dodecyl sulfonate. Dexamethasone (DEX) was loaded to the system after the formation of HHAM. The drug encapsulation capacity of DEX in HHAM is 40.3% and its loading efficiency is 16.7%. The cumulative release of DEX in vitro is 55% up to 35 days. Results of Real-time Polymerase Chain Reaction (Real-time PCR), alkaline phosphatase (ALP) activity and Alizarin Red S staining revealed that DHHAM can obviously promote bio-mineralization of hDPCs in the absence of osteogenic medium and enhance the gene expression of ALP, Runt-related transcription factor 2 (RUNX2), osteocalcin, dentin sialophosphoprotein (DSPP) and dentin matrix protein 1 (DMP1). The data suggest that sustained release of DEX from DHHAM could efficiently enhance odontogenic differentiation of hDPCs.
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Affiliation(s)
- Menglin Zhang
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Shilei Ni
- Department of Pathology, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Xue Zhang
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Jinjin Lu
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Siyu Gao
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Yalan Yang
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Zhe Wang
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China
| | - Hongchen Sun
- School of Stomatology, China Medical University, Shenyang, 110001, China
| | - Yi Li
- Department of Pediatric Dentistry, School of Stomatology, Jilin University, Changchun, 130021, China.
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Mandakhbayar N, El-Fiqi A, Lee JH, Kim HW. Evaluation of Strontium-Doped Nanobioactive Glass Cement for Dentin–Pulp Complex Regeneration Therapy. ACS Biomater Sci Eng 2019; 5:6117-6126. [DOI: 10.1021/acsbiomaterials.9b01018] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nandin Mandakhbayar
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
| | - Ahmed El-Fiqi
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
- Glass Research Department, National Research Centre, Cairo 12622, Egypt
| | - Jung-Hwan Lee
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
- Glass Research Department, National Research Centre, Cairo 12622, Egypt
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 330-714, South Korea
| | - Hae-Won Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 330-714, South Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Republic of Korea
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Kargozar S, Montazerian M, Fiume E, Baino F. Multiple and Promising Applications of Strontium (Sr)-Containing Bioactive Glasses in Bone Tissue Engineering. Front Bioeng Biotechnol 2019; 7:161. [PMID: 31334228 PMCID: PMC6625228 DOI: 10.3389/fbioe.2019.00161] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 06/20/2019] [Indexed: 12/22/2022] Open
Abstract
Improving and accelerating bone repair still are partially unmet needs in bone regenerative therapies. In this regard, strontium (Sr)-containing bioactive glasses (BGs) are highly-promising materials to tackle this challenge. The positive impacts of Sr on the osteogenesis makes it routinely used in the form of strontium ranelate (SR) in the clinical setting, especially for patients suffering from osteoporosis. Therefore, a large number of silicate-, borate-, and phosphate-based BGs doped with Sr and produced in different shapes have been developed and characterized, in order to be used in the most advanced therapeutic strategies designed for the management of bone defects and injuries. Although the influence of Sr incorporation in the glass is debated regarding the obtained physicochemical and mechanical properties, the biological improvements have been found to be substantial both in vitro and in vivo. In the present study, we provide a comprehensive overview of Sr-containing glasses along with the current state of their clinical use. For this purpose, different types of Sr-doped BG systems are described, including composites, coatings and porous scaffolds, and their applications are discussed in the light of existing experimental data along with the significant challenges ahead.
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Affiliation(s)
- Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maziar Montazerian
- Center for Research, Technology and Education in Vitreous Materials, Federal University of São Carlos, São Carlos, Brazil
| | - Elisa Fiume
- Department of Applied Science and Technology, Institute of Materials Physics and Engineering, Politecnico di Torino, Turin, Italy
| | - Francesco Baino
- Department of Applied Science and Technology, Institute of Materials Physics and Engineering, Politecnico di Torino, Turin, Italy
- Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Italy
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Jia X, Miron RJ, Yin C, Xu H, Luo T, Wang J, Jia R, Wu M, Zhang Y, Li Y. HnRNPL inhibits the osteogenic differentiation of PDLCs stimulated by SrCl 2 through repressing Setd2. J Cell Mol Med 2019; 23:2667-2677. [PMID: 30746871 PMCID: PMC6433863 DOI: 10.1111/jcmm.14166] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/29/2018] [Indexed: 12/31/2022] Open
Abstract
Osteoporosis has been shown to intensify bone loss caused by periodontitis and both share common risk factors. One strategy utilized to manage the disease has been via the release of Sr ions by Strontium Ranelate having a direct effect on preventing osteoclast activation and promoting osteoblast differentiation. Previously we have developed and characterized porous Sr-mesoporous bioactive glass (Sr-MBG) scaffolds and demonstrated their ability to promote periodontal regeneration when compared to MBG alone. Our group further discovered a splicing factor, heterogeneous nuclear ribonucleoprotein L (hnRNPL), was drastically down-regulated in periodontal ligament stem cells (PDLCs) stimulated by Sr through the activation of AKT pathway. Furthermore, hnRNPL restrained the osteogenic differentiation of PDLCs through down-regulating H3K36me3-specific methyltransferase Setd2. The goal of the present study was to investigate the mechanism of periodontal regeneration stimulated by Sr It was first found that the epigenetic mechanism of splicing factor hnRNPL participated in the osteogenesis processing of PDLCs stimulated by SrCl2 . Meanwhile, the different role of hnRNPL and SET domain containing 2 (Setd2) may provide some implication of the treatment of periodontitis patients simultaneously suffering from osteoporosis.
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Affiliation(s)
- Xiaoshi Jia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
| | - Richard J. Miron
- Department of Periodontology, Cell Therapy Institute, College of Dental MedicineNova Southeastern UniversityFort LauderdaleFlorida
| | - Chengcheng Yin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
| | - Hudi Xu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
| | - Tao Luo
- Key Laboratory of Oral MedicineGuangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Jiwei Wang
- Key Laboratory of Oral MedicineGuangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Rong Jia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
| | - Min Wu
- Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, Department of Biochemistry and Molecular Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
| | - Yuhong Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationWuhan UniversityWuhanPeople's Republic of China
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Götz W, Tobiasch E, Witzleben S, Schulze M. Effects of Silicon Compounds on Biomineralization, Osteogenesis, and Hard Tissue Formation. Pharmaceutics 2019; 11:E117. [PMID: 30871062 PMCID: PMC6471146 DOI: 10.3390/pharmaceutics11030117] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/25/2019] [Accepted: 03/03/2019] [Indexed: 12/19/2022] Open
Abstract
Bioinspired stem cell-based hard tissue engineering includes numerous aspects: The synthesis and fabrication of appropriate scaffold materials, their analytical characterization, and guided osteogenesis using the sustained release of osteoinducing and/or osteoconducting drugs for mesenchymal stem cell differentiation, growth, and proliferation. Here, the effect of silicon- and silicate-containing materials on osteogenesis at the molecular level has been a particular focus within the last decade. This review summarizes recently published scientific results, including material developments and analysis, with a special focus on silicon hybrid bone composites. First, the sources, bioavailability, and functions of silicon on various tissues are discussed. The second focus is on the effects of calcium-silicate biomineralization and corresponding analytical methods in investigating osteogenesis and bone formation. Finally, recent developments in the manufacturing of Si-containing scaffolds are discussed, including in vitro and in vivo studies, as well as recently filed patents that focus on the influence of silicon on hard tissue formation.
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Affiliation(s)
- Werner Götz
- Department of Orthodontics, Oral Biology Laboratory, School of Dentistry, Rheinische Wilhelms University of Bonn, Welschnonnenstr. 17, D-53111 Bonn, Germany.
| | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
| | - Steffen Witzleben
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
| | - Margit Schulze
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
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Liu F, Li Y, Liang J, Sui W, Bellare A, Kong L. Effects of micro/nano strontium‐loaded surface implants on osseointegration in ovariectomized sheep. Clin Implant Dent Relat Res 2019; 21:377-385. [DOI: 10.1111/cid.12719] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/04/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Fuwei Liu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
| | - Yongfeng Li
- Department of StomatologyPLA 301 Hospital Beijing People's Republic of China
| | - Jianfei Liang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
| | - Wen Sui
- Department of StomatologyShenzhen Hospital of Southern Medical University Shenzhen People's Republic of China
| | - Anuj Bellare
- Department of Orthopedic SurgeryBrigham and Women's Hospital Boston Massachusetts
| | - Liang Kong
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
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Biological interactions of a calcium silicate based cement (Biodentine™) with Stem Cells from Human Exfoliated Deciduous teeth. Dent Mater 2018; 34:1797-1813. [PMID: 30316525 DOI: 10.1016/j.dental.2018.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To investigate the biological interactions of a calcium silicate based cement (Biodentine™) with Stem Cells from Human Exfoliated Deciduous teeth (SHED), focusing on viability/proliferation, odontogenic differentiation, biomineralization and elemental release/exchange. METHODS Biodentine™ specimens were used directly or for eluate preparation at serial dilutions (1:1-1:64). SHED cultures were established from deciduous teeth of healthy children. Viability/proliferation and morphological characteristics were evaluated by live/dead fluorescent staining, MTT assay and Scanning Electron Microscopy. Odontogenic differentiation by qRT-PCR, biomineralization by Alizarin red S staining, while ion elution by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). RESULTS SHED effectively attached within the crystalline surface of Biodentine™ specimens acquiring a spindle-shaped phenotype. Statistically significant stimulation of cell proliferation was induced at day 3 by eluates in dilutions from 1:16 to 1:64. Differential, concentration- and time-dependent expression patterns of odontogenic genes were observed under non-inductive and inductive (osteogenic) conditions, with significant up-regulation of DSPP and Runx2 at higher dilutions and a peak in expression of BMP-2, BGLAP and MSX-2 at 1:8 dilution on day 7. Progressive increase in mineralized tissue formation was observed with increasing dilutions of Biodentine™ eluates. ICP-OES indicated that Biodentine™ absorbed Ca, Mg and P ions from culture medium, while releasing Si and Sr ions from its backbone. SIGNIFICANCE Biodentine™ interacts through elemental release/uptake with the cellular microenvironment, triggering odontogenic differentiation and biomineralization in a concentration-dependent manner. These results reveal a promising strategy for application of the calcium silicate based cement (Biodentine™) for vital pulp therapies of deciduous teeth in Paediatric Dentistry.
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Xiao S, Wang M, Wang L, Zhu Y. Environment-Friendly Synthesis of Trace Element Zn, Sr, and F Codoping Hydroxyapatite with Non-cytotoxicity and Improved Osteoblast Proliferation and Differentiation. Biol Trace Elem Res 2018; 185:148-161. [PMID: 29349676 DOI: 10.1007/s12011-017-1226-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 12/18/2017] [Indexed: 01/26/2023]
Abstract
Hydroxyapatite (HAp, Ca10[PO4]6[OH]2) doped with numerous trace elements possesses sensational biochemical effects in natural bones. To study the biochemical function of Zn, Sr, and F elements, a series of neoteric HAp biomaterials with Zn, Sr, and F concentrations close to natural bones are firstly synthesized by one-pot hydrothermal method. These materials are characterized through powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM). All the synthesized materials are HAp phase. The morphology of these materials is nanorods. The phenomenon that L929 cells can live even at 400 μg/mL powder concentration indicates that these materials are non-cytotoxic. The active effects of samples on proliferation and differentiation of osteoblast cells (MC3T3-E1) are certified by MTT and alkaline phosphatase (ALP) activity assays. The adhesion and proliferation of osteoblast measurement manifest that amounts of MC3T3-E1 advances about 1.86 times for ZnSrF/HAp compared with undoped HAp. This achievement may inspire us on the artificial design of new-style bionic bone grafts using trace bioactive elements and also suggest its latent applications in orthopedic surgery and bone osseointegration.
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Affiliation(s)
- Shengjie Xiao
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ming Wang
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liping Wang
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yingchun Zhu
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Zhou C, Xu AT, Wang DD, Lin GF, Liu T, He FM. The effects of Sr-incorporated micro/nano rough titanium surface on rBMSC migration and osteogenic differentiation for rapid osteointegration. Biomater Sci 2018; 6:1946-1961. [DOI: 10.1039/c8bm00473k] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
MNT-Sr can promote rBMSC osteogenic differentiation and significantly enhance rBMSC migration and homing via activation of SDF-1α/CXCR4 signaling.
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Affiliation(s)
- Chuan Zhou
- Department of Oral Implantology and Prothodontics
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - An-tian Xu
- Department of Oral Implantology and Prothodontics
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Dan-dan Wang
- Department of Oral Implantology and Prothodontics
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Guo-fen Lin
- Department of General Dentistry
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Tie Liu
- Department of Oral Implantology
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Fu-ming He
- Department of Oral Implantology and Prothodontics
- The Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
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Silva GAB, Bertassoli BM, Sousa CA, Albergaria JD, de Paula RS, Jorge EC. Effects of strontium ranelate treatment on osteoblasts cultivated onto scaffolds of trabeculae bovine bone. J Bone Miner Metab 2018; 36:73-86. [PMID: 28321651 DOI: 10.1007/s00774-017-0822-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 02/08/2017] [Indexed: 10/19/2022]
Abstract
Blocks of Bovine bone have shown promising results as implantable scaffolds to promote bone regeneration. Strontium ranelate (SrR) is both an antiresorptive and an anabolic drug that has been indicated for oral administration to treat osteoporosis. Few studies, however, have investigated the local effects of SrR and its use in association with biomaterials thus far. In this work, we investigated SrR effects in cultures of primary osteoblasts (PO, from Wistar rats calvaria) and immortalized osteoblasts (IO, from MC3T3-E1 cell line) cultivated as a monolayer or in association with scaffolds of bovine bone in mineralized (MBB) and demineralized (DBB) forms. The optimum dose to induce SrR effects on cell viability was established as 0.1 mM. Our results suggested that the local administration of SrR is biocompatible and non-cytotoxic. In addition, SrR appeared to accelerate primary osteoblast cell differentiation by enhancing alkaline phosphatase activity, the expression of osteogenic differentiation markers, the synthesis of the organic matrix, and a decrease of Ca2+ ions in mineralized nodules. DBB was found to be a better scaffold material to promote PO and IO cell proliferation. Exposing the proteins of the demineralized bone matrix might improve scaffold osteoconductive properties. Our results indicated the importance of further investigation of the administration of SrR at sites of bone repair. The association of SrR and bone grafts suggests the possibility of using SrR as a co-adjuvant for bone tissue bioengineering and in bone regeneration therapies.
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Affiliation(s)
- Gerluza Aparecida Borges Silva
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Bruno Machado Bertassoli
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Cristiane Aparecida Sousa
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Juliano Douglas Albergaria
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Rayan Silva de Paula
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Erika Cristina Jorge
- Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Biologia Oral e do Desenvolvimento, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil.
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Liu D, Zheng H. Xylenol orange probe-based spectroscopic insight into the interaction between strontium (II) and bovine serum albumin. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5508-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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