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Yadav AK, Tripathi H, Rajput S, Singh P, Dubey AK, Kumar K, Chawla R, Rath C. Drug kinetics and antimicrobial properties of quaternary bioactive glasses 81S(81SiO 2-(16-x)CaO-2P 2O 5-1Na 2O-xMgO); an in-vitro study. BIOMATERIALS ADVANCES 2024; 157:213729. [PMID: 38101068 DOI: 10.1016/j.bioadv.2023.213729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 11/20/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Bioactive glasses have recently been attracted to meet the challenge in bone tissue regeneration, repair, healing, dental implants, etc. Among the conventional bio-glasses, a novel quaternary mesoporous nano bio-glass with composition 81S(81SiO2-(16-x)CaO-2P2O5-1Na2O-xMgO) (x = 0, 1.6, 2.4, 4 and 8 mol%) employing Stober's method has been explored for examining the above potential application through in-vitro SBF assay, MTT assay, antimicrobial activity and drug loading and release ability. With increasing the MgO concentration up to 4 mol%, from in-vitro SBF assay, we observe that HAp layer develops on the surface of the nBGs confirmed from XRD, FTIR and FESEM. MTT assay using MG-63 cells confirms the biocompatibility of the nBGs having cell viability >225 % for MGO_4 after 72 h which is more than the clinically used 45S5 bio-glass. We have observed cell viability of >125 % even after 168 h. Moreover, MGO_4 is found to restrict the growth of E. coli by 65 % while S. aureus by 75 %, confirming the antimicrobial activity. Despite an increase in the concentration of magnesium, nBGs are found to be non-toxic towards the RBCs up to 4 mol% of MgO while for 8 %, the hemolysis percentage is >6 % which is toxic. Being confirmed MGO_4 nBG as a bioactive material, various concentrations of drug (Dexamethasone (DEX)) loading and release kinetics are examined. We show that 80 % of loading in case of 10 mg-ml-1 and 70 % of cumulative release in 100 h. The mesoporous structure of MGO_4 having an average pore diameter of 5 nm and surface area of 216 m2 g-1 confirmed from BET supports the loading and release kinetics. We conclude that the quaternary MGO_4 nBG may be employed effectively for bone tissue regeneration due to its high biocompatibility, excellent in-vitro cell viability, antimicrobial response and protracted drug release.
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Affiliation(s)
- Akhilesh Kumar Yadav
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Himanshu Tripathi
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Sanjna Rajput
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Priya Singh
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Krishan Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Ruchi Chawla
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Chandana Rath
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
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Vinaya KC, Awinashe V, Patil DB, Babaji P, Mahabob N, Shetty BK, Parihar AS. Intrabony defect management with a bone graft (hydroxyapatite and β-tricalcium phosphate) alone and in combination with a diode laser: A randomized control trial. Tzu Chi Med J 2023; 35:338-342. [PMID: 38035062 PMCID: PMC10683525 DOI: 10.4103/tcmj.tcmj_316_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/07/2023] [Accepted: 04/12/2023] [Indexed: 12/02/2023] Open
Abstract
Objectives The current research was conducted to evaluate the use of a diode laser and a bone graft (hydroxyapatite [HA] + β-tricalcium phosphate [β-TCP]) in healing of intrabony defects. Materials and Methods In this split-mouth evaluation, 40 patients with bilateral intrabony defects were treated with, Group I (control) - bone graft alone (HA + β-TCP) and Group II, (test) - bone graft with a diode laser. The clinical and radiologic parameters of all patients, such as plaque index (PI), probing depth (PD), gingival index (GI), gingival recession (GR), and relative clinical attachment level (RCAL) were recorded at baseline, after 3 months and after 6 months. Results Reductions in PI, PD, GI, GR, and RCAL were found after 6 months. Furthermore, significant differences were displayed in the intra-group comparison while those of the inter-group evaluation (P > 0.05) were insignificant. Conclusion In both groups, considerable decrease in intrabony pockets was discovered; however, the inter-group comparison was insignificant in relation to GR and RCAL.
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Affiliation(s)
- K. C. Vinaya
- Department of Prosthodontics, Sharavathi Dental College, Shivamogga, Karnataka, India
| | - Vaibhav Awinashe
- Department of Prosthodontics, College of Dentistry in Ar Rass, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Dipak Baliram Patil
- Department of Dentistry, BKL Walawalkar Rural Medical College and Hospital, Chiplun, Maharashtra, India
| | - Prashant Babaji
- Department of Pediatric Dentistry, Sharavathi Dental College, Shivamogga, Karnataka, India
| | - Nazargi Mahabob
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Faisal University, Al Hofuf, Kingdom of Saudi Arabia
| | - B Kaushik Shetty
- Department of Orthodontics and Dentofacial Orthopedics, NITTE (Deemed to be University), AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Mangalore, Karnataka, India
| | - Anuj Singh Parihar
- Department of Periodontics, People’s Dental Academy, Bhopal, Madhya Pradesh, India
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Satpathy S, Gupta J, Tenglikar P, Kanapathy R, Shah D, Parihar AS, Ramaiah VV. Evaluation of Bone Graft (Hydroxyapatite + Platelet-Rich Plasma) Alone and in Combination with Diode Laser in Management of Infrabony Defect. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:S1230-S1232. [PMID: 37694055 PMCID: PMC10485500 DOI: 10.4103/jpbs.jpbs_151_23] [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: 02/16/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 09/12/2023] Open
Abstract
Objective The current study looked at how well bone graft (hydroxyapatite + platelet-rich plasma (PRP)) and a diode laser treated infrabony defects. Materials and Method Twenty patients with bilateral infrabony deficiency were treated in a split-moth evaluation with bone graft (hydroxyapatite + PRP) alone (group I) (control) and bone graft combined with a diode laser (group II) (test). Clinical and radiologic measures such as the relative clinical attachment level (RCAL), probing depth (PD), gingival index (GI), and plaque index (PI) were recorded at baseline, 3 months later, and 6 months later in all patients. Result At the 6-month follow-up, there was a decline in the plaque index, probing depth, gingival index, and relative clinical attachment level. Conclusion When compared across groups, the intrabony pocket was significantly reduced with either the bone graft (hydroxyapatite + PRP) or in conjunction with the laser.
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Affiliation(s)
- Soumyadev Satpathy
- Department of Dentistry, Fakir Mohan Medical College, Balasore, Odisha, India
| | | | - Pavan Tenglikar
- Department of Dentistry, College of Medicine, Komar University of Science and Technology, Sulaymaniyah, Kurdistan Region, Iraq
| | - Rosaish Kanapathy
- Department of Periodontolgy, College of Dental Science and Hospital, Amargarh, Punjab, India
| | - Dipanshu Shah
- Department of Oral Surgery, Goenka Dental College and Hospital, Gandhinagar, Gujarat, India
| | - Anuj Singh Parihar
- Department of Periodontics, People’s Dental Academy, Bhopal, Madhya Pradesh, India
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R V, Srinivasan S, N A. A short note on bioglass in Periodontics. Bioinformation 2023; 19:341-344. [PMID: 37808378 PMCID: PMC10557441 DOI: 10.6026/97320630019341] [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: 03/01/2023] [Revised: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 10/10/2023] Open
Abstract
Bone augmentation grafts may act as space-maintaining devices to allow coronal migration of periodontal progenitor cells. The ideal bone replacement graft should be able to trigger osteogenesis, cementogenesis and formation of a functional periodontal ligament. It has been theorized that bioactive glass, which is a ceramic has bioactive properties that guide and promote osteogenesis allowing rapid formation of bone. Bioactive glass consists of sodium and calcium salts, phosphates and silicon dioxide for dental applications. When this material comes into contact with tissue fluids, the surface of the particles becomes coated with hydroxy carbonate apatite, incorporates organic ground proteins such as chondroitin sulfate and glycosaminoglycans and attracts osteoblasts that rapidly form bone.
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Affiliation(s)
- Vijayalakshmi R
- Department of Periodontology, Faculty of Dentistry, Meenakshi Ammal Dental College & Hospital, Maduravoyal, Chennai - 600095
| | - Sruthi Srinivasan
- Department of Periodontology, Faculty of Dentistry, Meenakshi Ammal Dental College & Hospital, Maduravoyal, Chennai - 600095
| | - Ambalavanan N
- Department of Periodontology, Faculty of Dentistry, Meenakshi Ammal Dental College & Hospital, Maduravoyal, Chennai - 600095
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Rahimnejad M, Charbonneau C, He Z, Lerouge S. Injectable cell-laden hybrid bioactive scaffold containing bioactive glass microspheres. J Biomed Mater Res A 2023; 111:1031-1043. [PMID: 36597835 DOI: 10.1002/jbm.a.37487] [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: 02/15/2022] [Revised: 08/18/2022] [Accepted: 12/05/2022] [Indexed: 01/05/2023]
Abstract
The rising incidence of bone disorders has resulted in the need for minimally invasive therapies to meet this demand. Injectable bioactive filler, alone or with cells, could be applied in a minimally invasive manner to fulfill irregular cavities in non-load bearing sites, which do not require high mechanical properties. Thermosensitive chitosan hydrogels that transition from a liquid to a mechanically stable solid at body temperature provide interesting features as in-situ injectable cytocompatible biomaterials, but they are not osteoconductive. Osteoconductivity can be applied in combination with bioactive ceramics e.g., 45S5-Bioglass® (BG). However, BG addition in chitosan hydrogels results in pH elevation, due to rapid ions release, which adversely affects gel formation, mechanical properties, and cytocompatibility. To address this, we created hybrid hydrogels, where BG is concentrated in chitosan-based microbeads, incorporated in in-situ gelling chitosan hydrogels. We then compared the hybrid hydrogels' properties to chitosan hydrogels with homogenously distributed BG. By varying the stirred emulsification process, BG percentage, and CH formulation, we could tune the microbeads' properties. Incorporation of BG microbeads drastically improved the hydrogel's compressive modulus in comparison to homogeneously distributed BG. It also strongly increased the survival and metabolic activities of encapsulated cells. Calcium/phosphate increase on BG microbeads suggests hydroxyapatite formation. The small diameter of microbeads allows minimally invasive injection through small needles. The feasibility of freezing and thawing microbeads provides the possibility of long-term storage for potential clinical applications. These data indicate that this hybrid hydrogel forms a promising injectable cell-laden bioactive biomaterial for the treatment of unloaded bone defects.
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Affiliation(s)
- Maedeh Rahimnejad
- Biomedical Engineering Institute, Université de Montreal, Montreal, QC - Québec, Canada.,Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC - Québec, Canada
| | - Cindy Charbonneau
- National Research Council Canada/Government of Canada, Boucherville, QC - Québec, Canada
| | - Zinan He
- National Research Council Canada/Government of Canada, Boucherville, QC - Québec, Canada
| | - Sophie Lerouge
- Biomedical Engineering Institute, Université de Montreal, Montreal, QC - Québec, Canada.,Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC - Québec, Canada.,Department of Mechanical Engineering, École de technologie supérieure (ÉTS), Montreal, QC - Québec, Canada
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Cannillo V, Salvatori R, Bergamini S, Bellucci D, Bertoldi C. Bioactive Glasses in Periodontal Regeneration: Existing Strategies and Future Prospects-A Literature Review. MATERIALS 2022; 15:ma15062194. [PMID: 35329645 PMCID: PMC8954447 DOI: 10.3390/ma15062194] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/11/2022] [Accepted: 03/13/2022] [Indexed: 12/22/2022]
Abstract
The present review deals with bioactive glasses (BGs), a class of biomaterials renowned for their osteoinductive and osteoconductive capabilities, and thus widely used in tissue engineering, i.e., for the repair and replacement of damaged or missing bone. In particular, the paper deals with applications in periodontal regeneration, with a special focus on in vitro, in vivo and clinical studies. The study reviewed eligible publications, identified on the basis of inclusion/exclusion criteria, over a ranged time of fifteen years (from 1 January 2006 to 31 March 2021). While there are many papers dealing with in vitro tests, only a few have reported in vivo (in animal) research, or even clinical trials. Regardless, BGs seem to be an adequate choice as grafts in periodontal regeneration.
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Affiliation(s)
- Valeria Cannillo
- Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy;
- Correspondence:
| | - Roberta Salvatori
- Department of Industrial Engineering and BIOtech Research Center, University of Trento, 38123 Trento, Italy;
| | - Stefania Bergamini
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41124 Modena, Italy; (S.B.); (C.B.)
| | - Devis Bellucci
- Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy;
| | - Carlo Bertoldi
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41124 Modena, Italy; (S.B.); (C.B.)
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Aljamhan AS, Alrefeai MH, Alhabdan A, Alhusseini SA, Farooq I, Vohra F, Naseem M, Alkhudhairy F. Influence of ER-CR-YSGG Laser and Photodynamic Therapy on the Dentin Bond Integrity of Nano-Hydroxyapatite Containing Resin Dentin Adhesive: SEM-EDX, Micro-Raman, Micro-Tensile, and FTIR Evaluation. Polymers (Basel) 2021; 13:polym13121903. [PMID: 34201060 PMCID: PMC8228082 DOI: 10.3390/polym13121903] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
The study aimed to analyze the effect of the addition of nano-hydroxyapatite (nano-HA) particles on the mechanical properties of experimental adhesive (EA). Furthermore, dentin interaction of EA (without nano-HA) and EA with nano-HA (hereon referred to as HA-10%) were also investigated and equated. Methods consisting of scanning electron microscopy (SEM)-energy-dispersive X-ray spectroscopy (EDX), micro-Raman spectroscopy, micro-tensile bond strength (µTBS) test, and Fourier transform infrared (FTIR) spectroscopy were employed to study nano-HA particles shape, dentin bond strength, degree of conversion (DC), and adhesive-dentin interaction. Ninety teeth (N = 90) were collected, and pre-bonding, conditioning of dentin was performed utilizing phosphoric acid (H3PO4) etching, photodynamic therapy (PDT), and ER-CR-YSGG (ECY) laser. The teeth were set to form bonded specimens using two adhesives. Nano-HA particles were spherical-shaped, and EDX confirmed the presence of oxygen, calcium, and phosphorus. Micro-Raman spectroscopy revealed distinct phosphate and carbonate peaks for nano-HA. The µTBS test demonstrated highest values for HA-10% group on the H3PO4 conditioned dentin. The greatest DC was observed for the EA group. The addition of nano-HA-10 wt.% particles in dentin adhesive resulted in improved bond strength. The incorporation also demonstrated acceptable DC (although lower than EA group), suitable dentin interaction, and resin tag formation.
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Affiliation(s)
- Abdullah S. Aljamhan
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.S.A.); (M.H.A.); (A.A.); (S.A.A.)
| | - Mohammad H. Alrefeai
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.S.A.); (M.H.A.); (A.A.); (S.A.A.)
| | - Alhanouf Alhabdan
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.S.A.); (M.H.A.); (A.A.); (S.A.A.)
| | - Sarah A. Alhusseini
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.S.A.); (M.H.A.); (A.A.); (S.A.A.)
| | - Imran Farooq
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada;
| | - Fahim Vohra
- Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia;
| | - Mustafa Naseem
- Department of Community and Preventive Dental Sciences, Dow International Dental College, Karachi 74200, Pakistan;
| | - Fahad Alkhudhairy
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.S.A.); (M.H.A.); (A.A.); (S.A.A.)
- Correspondence:
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Scaffolds Fabricated from Natural Polymers/Composites by Electrospinning for Bone Tissue Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:49-78. [DOI: 10.1007/978-981-13-0950-2_4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Dewi AH, Ana ID. The use of hydroxyapatite bone substitute grafting for alveolar ridge preservation, sinus augmentation, and periodontal bone defect: A systematic review. Heliyon 2018; 4:e00884. [PMID: 30417149 PMCID: PMC6218667 DOI: 10.1016/j.heliyon.2018.e00884] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 07/16/2018] [Accepted: 10/23/2018] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES We determined and structurally analyzed the reported effect of hydroxyapatite (HA) bone substitute on alveolar bone regeneration. To the best of our knowledge, no systematic reviews have previously reported the bone regenerative effect of the HA bone substitute. MATERIALS AND METHODS A literature search was performed for articles published up to August 2015 using MEDLINE with the search terms "hydroxyapatite," "bone regeneration," and "alveolar bone" as well as their known synonyms. The inclusion criteria were set up for human trials with at least five patients. The literature search, eligible article selection, and data extraction were independently performed by two readers, and their agreement was reported by κ value. RESULTS Of the 504 studies found using the MEDLINE literature search, 241 were included for further steps (inter-reader agreement, κ = 0.968). Abstract screening yielded 74 studies (κ = 0.910), with 42 completely fulfilling the inclusion criteria (κ = 0.864). In a final step, 42 studies were further analyzed, with 17 and 25 studies with and without statistical analysis, respectively. The 17 studies reporting similar outcome measures were compared using the calculated 95% confidence intervals. The effect of HA on ridge preservation could not be evaluated. CONCLUSIONS The use of the HA bone substitute interfered with the normal healing process, with significant differences found for sinus augmentation but not for periodontal bone defects. Thus, a bone substitute with optimal bone regenerative properties for alveolar ridge or socket preservation, sinus augmentation, and periodontal bony defect should be developed.
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Affiliation(s)
| | - Ika Dewi Ana
- Department of Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
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Biomechanical Evaluation of a Novel Apatite-Wollastonite Ceramic Cage Design for Lumbar Interbody Fusion: A Finite Element Model Study. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4152543. [PMID: 29581974 PMCID: PMC5822753 DOI: 10.1155/2018/4152543] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 12/13/2017] [Accepted: 12/20/2017] [Indexed: 11/18/2022]
Abstract
Objectives Cage design and material properties play a crucial role in the long-term results, since interbody fusions using intervertebral cages have become one of the basic procedures in spinal surgery. Our aim is to design a novel Apatite-Wollastonite interbody fusion cage and evaluate its biomechanical behavior in silico in a segmental spinal model. Materials and Methods Mechanical properties for the Apatite-Wollastonite bioceramic cages were obtained by fitting finite element results to the experimental compression behavior of a cage prototype. The prototype was made from hydroxyapatite, pseudowollastonite, and frit by sintering. The elastic modulus of the material was found to be 32 GPa. Three intact lumbar vertebral segments were modelled with the ANSYS 12.0.1 software and this model was modified to simulate a Posterior Lumbar Interbody Fusion. Four cage designs in different geometries were analyzed in silico under axial loading, flexion, extension, and lateral bending. Results The K2 design had the best overall biomechanical performance for the loads considered. Maximum cage stress recorded was 36.7 MPa in compression after a flexion load, which was within the biomechanical limits of the cage. Conclusion Biomechanical analyses suggest that K2 bioceramic cage is an optimal design and reveals essential material properties for a stable interbody fusion.
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Profeta AC, Prucher GM. Bioactive-glass in periodontal surgery and implant dentistry. Dent Mater J 2017; 34:559-71. [PMID: 26438980 DOI: 10.4012/dmj.2014-233] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bioactive-glass (B-G) is a material known for its favorable biological response when in contact with surrounding fibro-osseous tissues, due not only to an osteoconductive property, but also to an osteostimulatory capacity, and superior biocompatibility for use in human body. The objectives of this paper are to review recent studies on B-G in periodontal and implant therapy, describing its basic properties and mechanism of activity as well as discoursing about state of art and future perspective of utilization. From a demonstrated clinical benefit as bone graft for the elimination of osseous defects due to periodontal disease (intrabony/furcation defects) and surgeries (alveolar ridge preservation, maxillary sinus augmentation), to a potential use for manufacturing bioactive dental implants, possibly allowing wider case selection criteria together with improved integration rates even in the more challenging osteoporotic and medically compromised patients, this biomaterial represents an important field of study with high academic, clinical and industrial importance.
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Affiliation(s)
- Andrea Corrado Profeta
- Department of Restorative Dentistry, Biomaterials Science, Biomimetics and Biophotonics (B3) Research Group, King's College London Dental Institute
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Arepalli SK, Tripathi H, Hira SK, Manna PP, Pyare R. Enhanced bioactivity, biocompatibility and mechanical behavior of strontium substituted bioactive glasses. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:108-16. [PMID: 27612694 DOI: 10.1016/j.msec.2016.06.070] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/13/2016] [Accepted: 06/22/2016] [Indexed: 11/19/2022]
Abstract
Strontium contained biomaterials have been reported as a potential bioactive material for bone regeneration, as it reduces bone resorption and stimulates bone formation. In the present investigation, the bioactive glasses were designed to partially substitute SrO for SiO2 in Na2O-CaO-SrO-P2O5-SiO2 system. This work demonstrates that the substitution of SrO for SiO2 has got significant benefit than substitution for CaO in the bioactive glass. Bioactivity was assessed by the immersion of the samples in simulated body fluid for different intervals. The formation of hydroxy carbonate apatite layer was identified by X-ray diffractometry, scanning electron microscopy (SEM) and energy dispersive spectroscopy. The elastic modulus of the bioactive glasses was measured and found to increase with increasing SrO for SiO2. The blood compatibility of the samples was evaluated. In vitro cell culture studies of the samples were performed using human osteosarcoma U2-OS cell lines and found a significant improvement in cell viability and proliferation. The investigation showed enhancement in bioactivity, mechanical and biological properties of the strontia substituted for silica in glasses. Thus, these bioactive glasses would be highly potential for bone regeneration.
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Affiliation(s)
- Sampath Kumar Arepalli
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
| | - Himanshu Tripathi
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Sumit Kumar Hira
- Immunobiology Laboratory, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Partha Pratim Manna
- Immunobiology Laboratory, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Ram Pyare
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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Stuart BW, Gimeno-Fabra M, Segal J, Ahmed I, Grant DM. Degradation and Characterization of Resorbable Phosphate-Based Glass Thin-Film Coatings Applied by Radio-Frequency Magnetron Sputtering. ACS APPLIED MATERIALS & INTERFACES 2015; 7:27362-27372. [PMID: 26523618 DOI: 10.1021/acsami.5b08957] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Quinternary phosphate-based glasses of up to 2.67 μm, deposited by radio-frequency magnetron sputtering, were degraded in distilled water and phosphate-buffered saline (PBS) to investigate their degradation characteristics. Magnetron-sputtered coatings have been structurally compared to their compositionally equivalent melt-quenched bulk glass counterparts. The coatings were found to have structurally variable surfaces to melt-quenched glass such that the respective bridging oxygen to nonbridging oxygen bonds were 34.2% to 65.8% versus 20.5% to 79.5%, forming metaphosphate (PO3)(-) (Q(2)) versus less soluble (P2O7)(4-) (Q(1)) and (PO4)(3-) (Q(0)), respectively. This factor led to highly soluble coatings, exhibiting a t(1/2) degradation dependence in the first 2 h in distilled water, followed by a more characteristic linear profile because the subsequent layers were less soluble. Degradation was observed to preferentially occur, forming voids characteristic of pitting corrosion, which was confirmed by the use of a focused ion beam. Coating degradation in PBS precipitated a (PO3)(-) metaphosphate, an X-ray amorphous layer, which remained adherent to the substrate and seemingly formed a protective diffusion barrier, which inhibited further coating degradation. The implications are that while compositionally similar, sputter-deposited coatings and melt-quenched glasses are structurally dissimilar, most notably, with regard to the surface layer. This factor has been attributed to surface etching of the as-deposited coating layer during deposition and variation in the thermal history between the processes of magnetron sputtering and melt quenching.
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Affiliation(s)
- Bryan W Stuart
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - Miquel Gimeno-Fabra
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - Joel Segal
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - Ifty Ahmed
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - David M Grant
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham , Nottingham NG7 2RD, United Kingdom
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Odontogenic differentiation and dentin formation of dental pulp cells under nanobioactive glass induction. Acta Biomater 2014; 10:2792-803. [PMID: 24576581 DOI: 10.1016/j.actbio.2014.02.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/20/2013] [Accepted: 02/05/2014] [Indexed: 01/09/2023]
Abstract
Bioactive glass (BG) has been widely used in bone regeneration; however, reports on the biological effects of BG on dental pulp cells are rare. This study aims to investigate the effects of nanoscale BG (n-BG) on odontogenic differentiation and dentin formation of dental pulp cells and to compare these effects with those of microscale BG (m-BG). Human dental pulp cells (hDPCs) from third molars were cultured directly with m-BG and n-BG in vitro. The cell proliferation increased at 0.1mgml(-1) BG, which also had a chemotactic effect on hDPCs. The mineralization capacity and expression of odontogenic-related proteins and genes (dentin sialophosphoprotein, dentin matrix protein 1 and collagen type I) of hDPCs were significantly up-regulated under BG induction, and were particularly higher in the n-BG group than in the control group. m-BG and n-BG combined with pulp tissues were transplanted into the dorsum of immunodeficient mice to observe their biological effects on dental pulp cells in vivo. A continuous layer of dentin-like tissue with uniform thickness, a well-organized dentinal tubule structure and polarizing odontoblast-like cells aligned along it was generated upon the n-BG layer, whereas some irregular sporadic osteodentin-like mineralized tissues were observed in the control group. This study reveals that BG, especially n-BG, induces the odontogenic differentiation and dentin formation of dental pulp cells and may serve as a potential material for pulp repair and dentin regeneration.
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