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Sansupakorn A, Khongkhunthian P. Implant stability and clinical outcome between implant placement using internal sinus floor elevation with alloplastic bone material grafting and without grafting: A 1-year randomized clinical trial. Clin Oral Investig 2024; 28:342. [PMID: 38801474 DOI: 10.1007/s00784-024-05736-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE To compare implant stability and clinical outcome in implant placement between osteotome sinus floor elevation (OSFE) with biphasic calcium phosphate (BCP) which consisted of 30% of hydroxyapatite (HA) and 70% of beta-tricalcium phosphate (β -TCP) grafting material and OSFE without using bone grafting material. The research questions is whether the BCP provides any benefit in OSFE or not. MATERIALS AND METHODS Thirty patients (30 implants) with a single edentulous area of upper premolar or molar were randomly separated into OSFE with BCP (n = 15) and OSFE without grafting (n = 15). The patients were reevaluated 3, 6, 9, and 12 months after implant loading. The clinical assessments (implant stability quotient (ISQ), implant survival-failure rate, and surgical complication) were analyzed. Together with radiographic assessments in 2D (endo-sinus bone gain (ESBG), mean marginal bone change (MMBC)) and 3D (endo-sinus bone gain in CBCT (ESBG-CT)) were evaluated, with a mean follow-up time of at least 12 months of functional loading and prosthetic complication. RESULTS 20 remaining implants (OSFE with BCP, n = 10; OSFE without grafting, n = 10) were analyzed. Mean ISQ was 79.18 ± 3.43 in 1-year follow-up (ISQ; OSFE with BCP = 78.72 ± 3.46, OSFE without grafting = 79.65 ± 3.52). ISQ in both groups increased steadily without significant differences in each follow-up. (p = 0.56). In radiographic evaluation, at 6-, 9-, and 12-month, OSFE without grafting group showed statistically significant lower MMBC (p < 0.05). The 1-year clinical results showed that 2 implants failed in OSFE with BCP, and 1 implant failed in OSFE without grafting. CONCLUSIONS Graft material "BCP" (HA30:TCP70) coupled with OSFE presents no extraordinary benefit in implant stability, clinical and radiographic outcome in 1-year follow-up. CLINICAL RELEVANCE Clinically, OSFE with grafting materials provides no additional benefit. CLINICAL TRIAL REGISTRATION NUMBER TCTR20210517008 (date of registration: May 17, 2021).
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Affiliation(s)
- Arpapat Sansupakorn
- Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiang Mai University, T. Suthep, A. Muang, Chiang Mai, 50200, Thailand
| | - Pathawee Khongkhunthian
- Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiang Mai University, T. Suthep, A. Muang, Chiang Mai, 50200, Thailand.
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Frigério PB, de Moura J, Pitol-Palin L, Monteiro NG, Mourão CF, Shibli JA, Okamoto R. Combination of a Synthetic Bioceramic Associated with a Polydioxanone-Based Membrane as an Alternative to Autogenous Bone Grafting. Biomimetics (Basel) 2024; 9:284. [PMID: 38786494 PMCID: PMC11117809 DOI: 10.3390/biomimetics9050284] [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: 03/15/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/25/2024] Open
Abstract
The purpose of this study was to evaluate the repair process in rat calvaria filled with synthetic biphasic bioceramics (Plenum® Osshp-70:30, HA:βTCP) or autogenous bone, covered with a polydioxanone membrane (PDO). A total of 48 rats were divided into two groups (n = 24): particulate autogenous bone + Plenum® Guide (AUTOPT+PG) or Plenum® Osshp + Plenum® Guide (PO+PG). A defect was created in the calvaria, filled with the grafts, and covered with a PDO membrane, and euthanasia took place at 7, 30, and 60 days. Micro-CT showed no statistical difference between the groups, but there was an increase in bone volume (56.26%), the number of trabeculae (2.76 mm), and intersection surface (26.76 mm2) and a decrease in total porosity (43.79%) in the PO+PG group, as well as higher values for the daily mineral apposition rate (7.16 µm/day). Histometric analysis presented material replacement and increased bone formation at 30 days compared to 7 days in both groups. Immunostaining showed a similar pattern between the groups, with an increase in proteins related to bone remodeling and formation. In conclusion, Plenum® Osshp + Plenum® Guide showed similar and sometimes superior results when compared to autogenous bone, making it a competent option as a bone substitute.
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Affiliation(s)
- Paula Buzo Frigério
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Juliana de Moura
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Letícia Pitol-Palin
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Naara Gabriela Monteiro
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Carlos Fernando Mourão
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - Jamil Awad Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil;
| | - Roberta Okamoto
- Department of Basic Sciences, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16066-840, Brazil;
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Esfandiari S, Amid R, Kadkhodazadeh M, Kheiri A. Comparison of the Volume and Histological Properties of Newly Formed Bone after the Application of Three Types of Bone Substitutes in Critical-Sized Bone Defects. J Long Term Eff Med Implants 2024; 34:17-27. [PMID: 38305367 DOI: 10.1615/jlongtermeffmedimplants.2023046281] [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: 02/03/2024]
Abstract
This study aimed to compare the volume and quality of the newly formed bone following application of two types of xenografts and one synthetic material in bone defects in rabbit calvaria from histological and micro-CT aspects. Four 8-mm defects were created in 12 rabbit calvaria. Three defects were filled with bone substitutes and one was left unfilled as the control group. The newly formed bone was evaluated histologically and also by micro-CT at 8 and 12 weeks after the intervention. The percentage of osteogenesis was comparable in histomor-phometric assessment and micro-CT. Histological analysis showed that the percentage of the newly formed bone was 10.92 ± 5.17%, 14.70 ± 11.02%, 11.47 ± 7.04%, and 9.45 ± 5.18% in groups bovine 1, bovine 2, synthetic, and negative control, respectively after 8 weeks. These values were 33.70 ± 11.48%, 26.30 ± 18.05%, 22.92 ± 6.30%, and 14.82 ± 8.59%, respectively at 12 weeks. The difference in the percentage of the new bone formation at 8 and 12 weeks was not significant in any group (P > 0.05) except for bovine 1 group (P < 0.05). Micro-CT confirmed new bone formation in all groups but according to the micro-CT results, the difference between the control and other groups was significant in this respect (P < 0.05). All bone substitutes enhanced new bone formation compared with the control group. Micro-CT assessment yielded more accurate and different results compared with histological assessment.
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Affiliation(s)
- Shiva Esfandiari
- Department of Biology, School of Science, Shahid Beheshti University, Tehran, Iran
| | - Reza Amid
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aida Kheiri
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Pereira AC, Tovar N, Nayak VV, Mijares DQ, Smay JE, Torroni A, Flores RL, Witek L. Direct inkjet writing type 1 bovine collagen/β-tricalcium phosphate scaffolds for bone regeneration. J Biomed Mater Res B Appl Biomater 2024; 112:e35347. [PMID: 38247237 PMCID: PMC10832301 DOI: 10.1002/jbm.b.35347] [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: 09/14/2023] [Accepted: 10/27/2023] [Indexed: 01/23/2024]
Abstract
Bone tissue has the capacity to regenerate under healthy conditions, but complex cases like critically sized defects hinder natural bone regeneration, necessitating surgery, and use of a grafting material for rehabilitation. The field of bone tissue engineering (BTE) has pioneered ways to address such issues utilizing different biomaterials to create a platform for cell migration and tissue formation, leading to improved bone reconstruction. One such approach involves 3D-printed patient-specific scaffolds designed to aid in regeneration of boney defects. This study aimed to develop and characterize 3D printed scaffolds composed of type I collagen augmented with β-tricalcium phosphate (COL/β-TCP). A custom-built direct inkjet write (DIW) printer was used to fabricate β-TCP, COL, and COL/β-TCP scaffolds using synthesized colloidal gels. After chemical crosslinking, the scaffolds were lyophilized and subjected to several characterization techniques, including light microscopy, scanning electron microscopy, and x-ray diffraction to evaluate morphological and chemical properties. In vitro evaluation was performed using human osteoprogenitor cells to assess cytotoxicity and proliferative capacity of the different scaffold types. Characterization results confirmed the presence of β-TCP in the 3D printed COL/β-TCP scaffolds, which exhibited crystals that were attributed to β-TCP due to the presence of calcium and phosphorus, detected through energy dispersive x-ray spectroscopy. In vitro studies showed that the COL/β-TCP scaffolds yielded more favorable results in terms of cell viability and proliferation compared to β-TCP and COL scaffolds. The novel COL/β-TCP scaffold constructs hold promise for improving BTE applications and may offer a superior environment for bone regeneration compared with conventional COL and β-TCP scaffolds.
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Affiliation(s)
- Angel Cabrera Pereira
- Biomaterials Division, NYU College of Dentistry, 345 E. 24 St., Room 902A, New York, NY
| | - Nick Tovar
- Department of Oral and Maxillofacial Surgery, New York University, Langone Medical Center and Bellevue Hospital Center, 462 1 Ave, Building H5-S, New York, NY
| | - Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th St, Rm. 305, Miami, FL
| | - Dindo Q. Mijares
- Biomaterials Division, NYU College of Dentistry, 433 1 Ave., Office 715F, New York, NY
| | - James E. Smay
- School of Materials Science and Engineering, Oklahoma State University, 700 N Greenwood Ave – HRC 202 Tulsa, OK
| | - Andrea Torroni
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, 222 E 41st St, New York, NY
| | - Roberto L. Flores
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, 222 E 41st St, New York, NY
| | - Lukasz Witek
- Biomaterials Division, NYU College of Dentistry, New York, NY; Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York, NY; Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY; 345 E. 24th St., Room 902D New York, NY
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Lee H, Shin DY, Bang SJ, Han G, Na Y, Kang HS, Oh S, Yoon CB, Vijayavenkataraman S, Song J, Kim HE, Jung HD, Kang MH. A strategy for enhancing bioactivity and osseointegration with antibacterial effect by incorporating magnesium in polylactic acid based biodegradable orthopedic implant. Int J Biol Macromol 2024; 254:127797. [PMID: 37949272 DOI: 10.1016/j.ijbiomac.2023.127797] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/24/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
Biodegradable orthopedic implants are essential for restoring the physiological structure and function of bone tissue while ensuring complete degradation after recovery. Polylactic acid (PLA), a biodegradable polymer, is considered a promising material due to its considerable mechanical properties and biocompatibility. However, further improvements are necessary to enhance the mechanical strength and bioactivity of PLA for reliable load-bearing orthopedic applications. In this study, a multifunctional PLA-based composite was fabricated by incorporating tricalcium phosphate (TCP) microspheres and magnesium (Mg) particles homogenously at a volume fraction of 40 %. This approach aims to enhance mechanical strength, accelerate pore generation, and improve biological and antibacterial performance. Mg content was incorporated into the composite at varying values of 1, 3, and 5 vol% (referred to as PLA/TCP-1 Mg, PLA/TCP-3 Mg, and PLA/TCP-5 Mg, respectively). The compressive strength and stiffness were significantly enhanced in all composites, reaching 87.7, 85.9, and 84.1 MPa, and 2.7, 3.0, and 3.1 GPa, respectively. The degradation test indicated faster elimination of the reinforcers as the Mg content increased, resulting in accelerated pore generation to induce enhanced osseointegration. Because PLA/TCP-3 Mg and PLA/TCP-5 Mg exhibited cracks in the PLA matrix due to rapid corrosion of Mg forming corrosion byproducts, to optimize the Mg particle content, PLA/TCP-1 Mg was selected for further evaluation. As determined by in vitro biological and antibacterial testing, PLA/TCP-1 Mg showed enhanced bioactivity with pre-osteoblast cells and exhibited antibacterial properties by suppressing bacterial colonization. Overall, the multifunctional PLA/TCP-Mg composite showed improved mechanobiological performance, making it a promising material for biodegradable orthopedic implants.
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Affiliation(s)
- Hyun Lee
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Da Yong Shin
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seo-Jun Bang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Ginam Han
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Yuhyun Na
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Hyeong Seok Kang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - SeKwon Oh
- Research Institute of Advanced Manufacturing & Materials Technology, Korea Institute of Industrial Technology, Incheon 21999, Republic of Korea
| | - Chang-Bun Yoon
- Department of Advanced Materials Engineering, Tech University of Korea, Siheung-si 15073, Republic of Korea
| | - Sanjairaj Vijayavenkataraman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates; Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, NY, USA
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun-Do Jung
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Min-Ho Kang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea.
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Taha SK, Hassan EA, Mousa S, El-Bassyouni GT, Shalash HN, Abdel Hamid MA. Biphasic calcium phosphate doped with zirconia nanoparticles for reconstruction of induced mandibular defects in dogs: cone-beam computed tomographic and histopathologic evaluation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:27. [PMID: 37204535 DOI: 10.1007/s10856-023-06731-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 05/02/2023] [Indexed: 05/20/2023]
Abstract
The present study aimed to evaluate osteogenic potential and biocompatibility of combining biphasic calcium phosphate with zirconia nanoparticles (4Zr TCP/HA) compared to biphasic calcium phosphate (TCP/HA) for reconstruction of induced mandibular defects in dog model. TCP/HA and 4Zr TCP/HA scaffolds were prepared. Morphological, physicochemical, antibacterial, cytocompatibility characterization were tested. In vivo application was performed in 12 dogs where three critical-sized mandibular defects were created in each dog. Bone defects were randomly allocated into: control, TCP/HA, and 4Zr TCP/HA groups. Bone density and bone area percentage were evaluated at 12 weeks using cone-beam computed tomographic, histopathologic, histomorphometric examination. Bone area density was statistically increased (p < 0.001) in TCP/HA and 4Zr TCP/HA groups compared to control group both in sagittal and coronal views. Comparing TCP/HA and 4Zr TCP/HA groups, the increase in bone area density was statistically significant in coronal view (p = 0.002) and sagittal view (p = 0.05). Histopathologic sections of TCP/HA group demonstrated incomplete filling of the defect with osteoid tissue. Doping with zirconia (4Zr TCP/HA group), resulted in statistically significant increase (p < 0.001) in bone formation (as indicated by bone area percentage) and maturation (as confirmed by Masson trichrome staining) compared to TCP/HA group. The newly formed bone was mature and organized with more trabecular thickness and less trabecular space in between. Physicochemical, morphological and bactericidal properties of combining zirconia and TCP/HA were improved. Combining zirconia and TCP/HA resulted in synergistic action with effective osteoinduction, osteoconduction and osteointegration suggesting its suitability to restore damaged bone in clinical practice.
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Affiliation(s)
- Said K Taha
- Surgery and Oral Medicine Department, Oral and Dental Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
| | - Elham A Hassan
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Sahar Mousa
- Inorganic Chemistry Department, Advanced Materials Technology and Mineral Resources Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
| | - Gehan T El-Bassyouni
- Refractories, Ceramics and Building Materials Department, Advanced Materials Technology and Mineral Resources Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
| | - Heba N Shalash
- Basic Dental Science Department, Oral and Dental Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
| | - Mohamed A Abdel Hamid
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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Fadeeva IV, Deyneko DV, Knotko AV, Olkhov AA, Slukin PV, Davydova GA, Trubitsyna TA, Preobrazhenskiy II, Gosteva AN, Antoniac IV, Rau JV. Antibacterial Composite Material Based on Polyhydroxybutyrate and Zn-Doped Brushite Cement. Polymers (Basel) 2023; 15:polym15092106. [PMID: 37177252 PMCID: PMC10181370 DOI: 10.3390/polym15092106] [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: 03/14/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
A composite material based on electrospinning printed polyhydroxybutyrate fibers impregnated with brushite cement containing Zn substitution was developed for bone implant applications. Powder X-ray Diffraction (PXRD), Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy were applied for materials characterization. Soaking the composite in Ringer's solution led to the transformation of brushite into apatite phase, accompanied by the morphology changes of the material. The bending strength of the composite material was measured to be 3.1 ± 0.5 MPa. NCTC mouse fibroblast cells were used to demonstrate by means of the MTT test that the developed material was not cytotoxic. The behavior of the human dental pulp stem cells on the surface of the composite material investigated by the direct contact method was similar to the control. It was found that the developed Zn containing composite material possessed antibacterial properties, as testified by microbiology investigations against bacteria strains of Escherichia coli and Staphylococcus aureus. Thus, the developed composite material is promising for the treatment of damaged tissues with bacterial infection complications.
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Affiliation(s)
- Inna V Fadeeva
- A.A. Baikov Institute of Metallurgy and Material Science, Russian Academy of Sciences, Leninsky Prospect 49, 119334 Moscow, Russia
| | - Dina V Deyneko
- Chemistry Department, Lomonosov Moscow State University, Vorobievy Gory 1, 119991 Moscow, Russia
- Laboratory of Arctic Mineralogy and Material Sciences, Kola Science Centre, Russian Academy of Sciences, 14 Fersman Str., 184209 Apatity, Russia
| | - Alexander V Knotko
- Chemistry Department, Lomonosov Moscow State University, Vorobievy Gory 1, 119991 Moscow, Russia
| | - Anatoly A Olkhov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina Street 4, Building 1, 119991 Moscow, Russia
- Plekhanov Russian University of Economics, Stremyanny Lane 36, 117997 Moscow, Russia
| | - Pavel V Slukin
- State Scientific Center of Applied Microbiology and Biotechnology of Rospotrebnadzor 24, Block A, 142279 Obolensk, Russia
| | - Galina A Davydova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Moscow, Russia
| | - Taisiia A Trubitsyna
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Moscow, Russia
| | - Ilya I Preobrazhenskiy
- Materials Science Department, Lomonosov Moscow State University, Vorobievy Gory 1, 119991 Moscow, Russia
| | - Alevtina N Gosteva
- Kola Science Centre RAS, Tananaev Institute of Chemistry, Akademgorodok District 26A, 184209 Apatity, Russia
| | - Iulian V Antoniac
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei Street, District 5, 050094 Bucharest, Romania
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, ISM-CNR, Via del Fosso del Cavaliere 100, 00133 Rome, Italy
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Chuang KW, Liu YC, Balaji R, Chiu YC, Yu J, Liao YC. Enhancing Stability of High-Concentration β-Tricalcium Phosphate Suspension for Biomedical Application. MATERIALS (BASEL, SWITZERLAND) 2022; 16:228. [PMID: 36614568 PMCID: PMC9822431 DOI: 10.3390/ma16010228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/05/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
We propose a novel process to efficiently prepare highly dispersed and stable Tricalcium Phosphate (β-TCP) suspensions. TCP is coupled with a polymer to enhance its brittleness to be used as an artificial hard tissue. A high solid fraction of β-TCP is mixed with the polymer in order to improve the mechanical strength of the prepared material. The high solid fractions led to fast particle aggregation due to Van der Waals forces, and sediments appeared quickly in the suspension. As a result, we used a dispersant, dispex AA4040 (A40), to boost the surface potential and steric hindrance of particles to make a stable suspension. However, the particle size of β-TCP is too large to form a suspension, as the gravity effect is much more dominant than Brownian motion. Hence, β-TCP was subjected to wet ball milling to break the aggregated particles, and particle size was reduced to ~300 nm. Further, to decrease sedimentation velocity, cellulose nanocrystals (CNCs) are added as a thickening agent to increase the overall viscosity of suspension. Besides the viscosity enhancement, CNCs were also wrapped with A40 micelles and increase the stability of the suspension. These CNC/A40 micelles further facilitated stable suspension of β-TCP particles with an average hydration radius of 244.5 nm. Finally, β-TCP bone cement was formulated with the suspension, and the related cytotoxicity was estimated to demonstrate its applicability for hard tissue applications.
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Mechanical Characteristics and Bioactivity of Nanocomposite Hydroxyapatite/Collagen Coated Titanium for Bone Tissue Engineering. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9120784. [PMID: 36550990 PMCID: PMC9774233 DOI: 10.3390/bioengineering9120784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
In the present study, we have analyzed the mechanical characteristics and bioactivity of titanium coating with hydroxyapatite/bovine collagen. Hydroxyapatite (HAp) was synthesized from a Pinctada maxima shell and has a stoichiometry (Ca/P) of 1.72 and a crystallinity of 92%, suitable for coating materials according to ISO and Food and Drug Administration (FDA) standards. Titanium (Ti) substrate coatings were fabricated at HAp concentrations of 1% (Ti/HAp-1) and 3% (Ti/HAp-3) and a bovine collagen concentration of 1% (Ti/HAp/Coll) by the electrophoresis deposition (EPD) method. The compressive strength of Ti/HAp-1 and Ti/HAp-3 was 87.28 and 86.19 MPa, respectively, and it increased significantly regarding the control/uncoated Ti (46.71 MPa). Furthermore, the Ti/HAp-coll (69.33 MPa) has lower compressive strength due to collagen substitution (1%). The bioactivity of Ti substrates after the immersion into simulated body fluids (SBF) for 3-10 days showed a high apatite growth (Ca2+ and PO43-), according to XRD, FTIR, and SEM-EDS results, significantly on the Ti/HAp-coll.
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Chen C, Huang B, Liu Y, Liu F, Lee IS. Functional engineering strategies of 3D printed implants for hard tissue replacement. Regen Biomater 2022; 10:rbac094. [PMID: 36683758 PMCID: PMC9845531 DOI: 10.1093/rb/rbac094] [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: 06/03/2022] [Revised: 10/20/2022] [Accepted: 10/27/2022] [Indexed: 11/27/2022] Open
Abstract
Three-dimensional printing technology with the rapid development of printing materials are widely recognized as a promising way to fabricate bioartificial bone tissues. In consideration of the disadvantages of bone substitutes, including poor mechanical properties, lack of vascularization and insufficient osteointegration, functional modification strategies can provide multiple functions and desired characteristics of printing materials, enhance their physicochemical and biological properties in bone tissue engineering. Thus, this review focuses on the advances of functional engineering strategies for 3D printed biomaterials in hard tissue replacement. It is structured as introducing 3D printing technologies, properties of printing materials (metals, ceramics and polymers) and typical functional engineering strategies utilized in the application of bone, cartilage and joint regeneration.
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Affiliation(s)
- Cen Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Bo Huang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Yi Liu
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang 110002, PR China
| | - Fan Liu
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang 110002, PR China
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11
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Assessment of crystallite size of UV-synthesized hydroxyapatite using different model equations. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02501-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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The experimental and theoretical investigation of Sm/Mg co-doped hydroxyapatites. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Iglesias-Fernandez M, Buxadera-Palomero J, Sadowska JM, Espanol M, Ginebra MP. Implementation of bactericidal topographies on biomimetic calcium phosphates and the potential effect of its reactivity. BIOMATERIALS ADVANCES 2022; 136:212797. [PMID: 35929296 DOI: 10.1016/j.bioadv.2022.212797] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/01/2022] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Since the discovery that nanostructured surfaces were able to kill bacteria, many works have been published focusing on the design of nanopatterned surfaces with antimicrobial properties. Synthetic bone grafts, based on calcium phosphate (CaP) formulations, can greatly benefit from this discovery if adequate nanotopographies can be developed. However, CaP are reactive materials and experience ionic exchanges when placed into aqueous solutions which may in turn affect cell behaviour and complicate the interpretation of the bactericidal results. The present study explores the bactericidal potential of two nanopillared CaP prepared by hydrolysis of two different sizes of α-tricalcium phosphate (α-TCP) powders under biomimetic or hydrothermal conditions. A more lethal bactericidal response toward Pseudomonas aeruginosa (~75% killing efficiency of adhered bacteria) was obtained from the hydrothermally treated CaP which consisted in a more irregular topography in terms of pillar size (radius: 20-60 nm), interpillar distances (100-1500 nm) and pillar distribution (pillar groups forming bouquets) than the biomimetically treated one (radius: 20-40 nm and interpillar distances: 50-200 nm with a homogeneous pillar distribution). The material reactivity was greatly influenced by the type of medium (nutrient-rich versus nutrient-free) and the presence or not of bacteria. A lower reactivity and superior bacterial attachment were observed in the nutrient-free medium while a lower attachment was observed for the nutrient rich medium which was explained by a superior reactivity of the material paired with the lower tendency of planktonic bacteria to adhere on surfaces in the presence of nutrients. Importantly, the ionic exchanges produced by the presence of materials were not toxic to planktonic cells. Thus, we can conclude that topography was the main contributor to mortality in the bacterial adhesion tests.
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Affiliation(s)
- Marc Iglesias-Fernandez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Judit Buxadera-Palomero
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Joanna-Maria Sadowska
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain.
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain
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14
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Lipid-assisted synthesis of magnesium-loaded hydroxyapatite as a potential bone healing material. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Raymond Y, Bonany M, Lehmann C, Thorel E, Benítez R, Franch J, Espanol M, Solé-Martí X, Manzanares MC, Canal C, Ginebra MP. Hydrothermal processing of 3D-printed calcium phosphate scaffolds enhances bone formation in vivo: a comparison with biomimetic treatment. Acta Biomater 2021; 135:671-688. [PMID: 34496283 DOI: 10.1016/j.actbio.2021.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/02/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
Hydrothermal (H) processes accelerate the hydrolysis reaction of α-tricalcium phosphate (α-TCP) compared to the long-established biomimetic (B) treatments. They are of special interest for patient-specific 3D-printed bone graft substitutes, where the manufacturing time represents a critical constraint. Altering the reaction conditions has implications for the physicochemical properties of the reaction product. However, the impact of the changes produced by the hydrothermal reaction on the in vivo performance was hitherto unknown. The present study compares the bone regeneration potential of 3D-printed α-TCP scaffolds hardened using these two treatments in rabbit condyle monocortical defects. Although both consolidation processes resulted in biocompatible scaffolds with osseointegrative and osteoconductive properties, the amount of newly formed bone increased by one third in the hydrothermal vs the biomimetic samples. B and H scaffolds consisted mostly of high specific surface area calcium-deficient hydroxyapatite (38 and 27 m2 g-1, respectively), with H samples containing also 10 wt.% β-tricalcium phosphate (β-TCP). The shrinkage produced during the consolidation process was shown to be very small in both cases, below 3%, and smaller for H than for B samples. The differences in the in vivo performance were mainly attributed to the distinct crystallisation nanostructures, which proved to have a major impact on permeability and protein adsorption capacity, using BSA as a model protein, with B samples being highly impermeable. Given the crucial role that soluble proteins play in osteogenesis, this is proposed to be a relevant factor behind the distinct in vivo performances observed for the two materials. STATEMENT OF SIGNIFICANCE: The possibility to accelerate the consolidation of self-setting calcium phosphate inks through hydrothermal treatments has aroused great interest due to the associated advantages for the development of 3D-printed personalised bone scaffolds. Understanding the implications of this approach on the in vivo performance of the scaffolds is of paramount importance. This study compares, for the first time, this treatment to the long-established biomimetic setting strategy in terms of osteogenic potential in vivo in a rabbit model, and relates the results obtained to the physicochemical properties of the 3D-printed scaffolds (composition, crystallinity, nanostructure, nanoporosity) and their interaction with soluble proteins.
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16
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Ibrahimzade L, Kaygili O, Dundar S, Ates T, Dorozhkin SV, Bulut N, Koytepe S, Ercan F, Gürses C, Hssain AH. Theoretical and experimental characterization of Pr/Ce co-doped hydroxyapatites. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130557] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Fadeeva IV, Goldberg MA, Preobrazhensky II, Mamin GV, Davidova GA, Agafonova NV, Fosca M, Russo F, Barinov SM, Cavalu S, Rau JV. Improved cytocompatibility and antibacterial properties of zinc-substituted brushite bone cement based on β-tricalcium phosphate. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:99. [PMID: 34406523 PMCID: PMC8373736 DOI: 10.1007/s10856-021-06575-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/09/2021] [Indexed: 05/11/2023]
Abstract
For bone replacement materials, osteoconductive, osteoinductive, and osteogenic properties are desired. The bacterial resistance and the need for new antibacterial strategies stand among the most challenging tasks of the modern medicine. In this work, brushite cements based on powders of Zinc (Zn) (1.4 wt%) substituted tricalcium phosphate (β-TCP) and non-substituted β-TCP were prepared and investigated. Their initial and final phase composition, time of setting, morphology, pH evolution, and compressive strength are reported. After soaking for 60 days in physiological solution, the cements transformed into a mixture of brushite and hydroxyapatite. Antibacterial activity of the cements against Enterococcus faecium, Escherichia coli, and Pseudomonas aeruginosa bacteria strains was attested. The absence of cytotoxicity of cements was proved for murine fibroblast NCTC L929 cells. Moreover, the cell viability on the β-TCP cement containing Zn2+ ions was 10% higher compared to the β-TCP cement without zinc. The developed cements are perspective for applications in orthopedics and traumatology.
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Affiliation(s)
- Inna V Fadeeva
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Margarita A Goldberg
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Ilya I Preobrazhensky
- Department of Materials Science, M.V. Lomonosov Moscow State University, Leninskie Gory 1, Moscow, Russian Federation, 119991
| | - Georgy V Mamin
- Kazan Federal University, Kremlevskaya 18, Kazan, Russian Federation, 420008
| | - Galina A Davidova
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow, Russian Federation, 142290
| | - Nadezhda V Agafonova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", pr. Nauki, 5, Pushchino, Moscow Region, Russian Federation, 142290
| | - Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Fabrizio Russo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo 200, 00128, Rome, Italy
| | - Sergey M Barinov
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410073, Oradea, Romania
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy.
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, build. 2, Moscow, Russian Federation, 119991.
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18
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Zhao R, Yang R, Cooper PR, Khurshid Z, Shavandi A, Ratnayake J. Bone Grafts and Substitutes in Dentistry: A Review of Current Trends and Developments. Molecules 2021; 26:3007. [PMID: 34070157 PMCID: PMC8158510 DOI: 10.3390/molecules26103007] [Citation(s) in RCA: 189] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/29/2021] [Accepted: 05/13/2021] [Indexed: 02/07/2023] Open
Abstract
After tooth loss, bone resorption is irreversible, leaving the area without adequate bone volume for successful implant treatment. Bone grafting is the only solution to reverse dental bone loss and is a well-accepted procedure required in one in every four dental implants. Research and development in materials, design and fabrication technologies have expanded over the years to achieve successful and long-lasting dental implants for tooth substitution. This review will critically present the various dental bone graft and substitute materials that have been used to achieve a successful dental implant. The article also reviews the properties of dental bone grafts and various dental bone substitutes that have been studied or are currently available commercially. The various classifications of bone grafts and substitutes, including natural and synthetic materials, are critically presented, and available commercial products in each category are discussed. Different bone substitute materials, including metals, ceramics, polymers, or their combinations, and their chemical, physical, and biocompatibility properties are explored. Limitations of the available materials are presented, and areas which require further research and development are highlighted. Tissue engineering hybrid constructions with enhanced bone regeneration ability, such as cell-based or growth factor-based bone substitutes, are discussed as an emerging area of development.
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Affiliation(s)
- Rusin Zhao
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Ruijia Yang
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Paul R. Cooper
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Amin Shavandi
- BioMatter Unit—École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), Avenue F.D. Roosevelt, 50—CP 165/61, 1050 Brussels, Belgium;
| | - Jithendra Ratnayake
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
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19
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Pires LCDA, da Silva RC, Poli PP, Ruas Esgalha F, Hadad H, Palin LP, Piquera Santos AF, Teixiera Colombo L, Kawamata de Jesus L, Bassi APF, Maiorana C, Okamoto R, de Carvalho PSP, Souza FÁ. Evaluation of Osteoconduction of a Synthetic Hydroxyapatite/β-Tricalcium Phosphate Block Fixed in Rabbit Mandibles. MATERIALS 2020; 13:ma13214902. [PMID: 33142881 PMCID: PMC7662777 DOI: 10.3390/ma13214902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/21/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
(1) Background: This study aimed to evaluate the incorporation of hydroxyapatite/β-tricalcium phosphate blocks grafted in rabbit mandibles. (2) Methods: Topographic characterization of biomaterial was performed through scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX). Ten rabbits randomly received autogenous bone graft harvested from the tibia (Autogenous Group—AG) or synthetic biomaterial manufactured in β-tricalcium phosphate (Biomaterial Group—BG) at their right and left mandibular angles. Euthanasia was performed at 30 and 60 postoperative days; (3) Results: SEM-EDX showed a surface with the formation of crystals clusters. Histological analyses in BG at 30 days showed a slower process of incorporation than AG. At 60 days, BG showed remnants of biomaterial enveloped by bone tissue in the anabolic modeling phase. Histometric analysis showed that mean values of newly formed bone-like tissue in the AG (6.56%/9.70%) were statistically higher compared to BG (3.14%/6.43%) in both periods, respectively. Immunohistochemical analysis demonstrated early bone formation and maturation in the AG with more intense osteopontin and osteocalcin staining. (4) Conclusions: The biomaterial proved to be a possible bone substitute, being incorporated into the receiving bed; however, it showed delayed bone incorporation compared to autogenous bone.
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Affiliation(s)
- Luis Carlos de Almeida Pires
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas, SP 13 045 755, São Paulo, Brazil; (L.C.d.A.P.); (F.R.E.); (P.S.P.d.C.)
| | - Rodrigo Capalbo da Silva
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Pier Paolo Poli
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCSS Cà Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy;
- Correspondence: ; Tel.: +39-02-55032621
| | - Fernando Ruas Esgalha
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas, SP 13 045 755, São Paulo, Brazil; (L.C.d.A.P.); (F.R.E.); (P.S.P.d.C.)
| | - Henrique Hadad
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Letícia Pitol Palin
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Ana Flávia Piquera Santos
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Luara Teixiera Colombo
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Laís Kawamata de Jesus
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
| | - Carlo Maiorana
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCSS Cà Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy;
| | - Roberta Okamoto
- Department of Basic Science, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil;
| | - Paulo Sérgio Perri de Carvalho
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas, SP 13 045 755, São Paulo, Brazil; (L.C.d.A.P.); (F.R.E.); (P.S.P.d.C.)
| | - Francisley Ávila Souza
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Araçatuba, SP 16 015 050, São Paulo, Brazil; (R.C.d.S.); (H.H.); (L.P.P.); (A.F.P.S.); (L.T.C.); (L.K.d.J.); (A.P.F.B.); (F.Á.S.)
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20
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Huang X, Cheng B, Song W, Wang L, Zhang Y, Hou Y, Song Y, Kong L. Superior CKIP-1 sensitivity of orofacial bone-derived mesenchymal stem cells in proliferation and osteogenic differentiation compared to long bone-derived mesenchymal stem cells. Mol Med Rep 2020; 22:1169-1178. [PMID: 32626993 PMCID: PMC7339610 DOI: 10.3892/mmr.2020.11239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 04/09/2020] [Indexed: 01/02/2023] Open
Abstract
Maxillofacial bone defects caused by multiple factors, including congenital deformations and tumors, have become a research focus in the field of oral medicine. Bone tissue engineering is increasingly regarded as a potential approach for maxillofacial bone repair. Mesenchymal stem cells (MSCs) with different origins display various biological characteristics. The aim of the present study was to investigate the effects of casein kinase‑2 interaction protein‑1 (CKIP‑1) on MSCs, including femoral bone marrow‑derived MSCs (BMMSCs) and orofacial bone‑derived MSCs (OMSCs), isolated from the femoral and orofacial bones of wild‑type (WT) and CKIP‑1 knockout (KO) mice. MSCs were isolated using collagenase II and the main biological characteristics, including proliferation, apoptosis and osteogenic differentiation, were investigated. Subcutaneous transplantation of MSCs in mice was also performed to assess ectopic bone formation. MTT and clone formation assay results indicated that cell proliferation in the KO group was increased compared with the WT group, and OMSCs exhibited significantly increased levels of proliferation compared with BMMSCs. However, the proportion of apoptotic cells was not significantly different between CKIP‑1 KO OMSCs and BMMSCs. Furthermore, it was revealed that osteogenic differentiation was increased in CKIP‑1 KO MSCs compared with WT MSCs, particularly in OMSCs. Consistent with the in vitro results, enhanced ectopic bone formation was observed in CKIP‑1 KO mice compared with WT mice, particularly in OMSCs compared with BMMSCs. In conclusion, the present results indicated that OMSCs may have a superior sensitivity to CKIP‑1 in promoting osteogenesis compared with BMMSCs; therefore, CKIP‑1 KO in OMSCs may serve as an efficient strategy for maxillofacial bone repair.
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Affiliation(s)
- Xin Huang
- School of Stomatology of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Bingkun Cheng
- 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 Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wen Song
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Le Wang
- 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 Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yanyuan Zhang
- 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 Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yan Hou
- 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 Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yu Song
- Department of Orthodontics, Qingdao Stomatological Hospital, Qingdao, Shandong 266001, P.R. China
| | - 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 Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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21
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Du Z, Zhao Z, Liu H, Liu X, Zhang X, Huang Y, Leng H, Cai Q, Yang X. Macroporous scaffolds developed from CaSiO 3 nanofibers regulating bone regeneration via controlled calcination. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:111005. [PMID: 32487409 DOI: 10.1016/j.msec.2020.111005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 03/18/2020] [Accepted: 04/20/2020] [Indexed: 01/31/2023]
Abstract
Calcium silicate (CS) is envisioned as a good substrate for bone tissue engineering applications because it can provide bioactive ions like Ca2+ and Si4+ to promote bone regeneration. Calcination temperature is a critical factor in determining the crystallinity of CS ceramic, which subsequently influences its degradation and ion release behaviors. To investigate the effect of calcination temperature on the capacity of CS in inducing bone regeneration, CS nanofibers were fabricated via electrospinning of precursor sol-gel and subsequent sintering at 800 °C, 1000 °C or 1200 °C. As the calcination temperature was increased, the obtained CS nanofibers displayed higher crystallinity and slower degradation rate. The CS nanofibers calcined at 800 °C (800 m) would like to cause high pH (>9) in cell culture medium due to its rapid ion release rate, displaying adverse effect on cell viability. Among all the preparations, it was found the CS nanofibers calcined at 1000 °C (1000 m) demonstrated the strongest promotion effect on the osteogenic differentiation of bone marrow mesenchymal stromal cells. To facilitate in vivo implantation, the CS nanofibers were shaped into three-dimensional macroporous scaffolds and coated with gelatin to improve their mechanical stability. By implanting the scaffolds into rat calvarial defects, it was confirmed the scaffold made of CS nanofibers calcined at 1000 °C was able to enhance new bone formation more efficiently than the scaffolds made of CS nanofibers calcined at 800 °C or 1200 °C. To summarize, calcination temperature could be an effective and useful tool applied to produce CS bioceramic substrates with improved potential in enhancing osteogenesis by regulating their degradation and bioactive ion release behaviors.
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Affiliation(s)
- Zhiyun Du
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zhenda Zhao
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China
| | - Huanhuan Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xue Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xu Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Huijie Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China.
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
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Hayashi K, Kishida R, Tsuchiya A, Ishikawa K. Granular Honeycombs Composed of Carbonate Apatite, Hydroxyapatite, and β-Tricalcium Phosphate as Bone Graft Substitutes: Effects of Composition on Bone Formation and Maturation. ACS APPLIED BIO MATERIALS 2020; 3:1787-1795. [DOI: 10.1021/acsabm.0c00060] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Koichiro Hayashi
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Ryo Kishida
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Akira Tsuchiya
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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23
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Bystrom JL, Pujari-Palmer M. Phosphoserine Functionalized Cements Preserve Metastable Phases, and Reprecipitate Octacalcium Phosphate, Hydroxyapatite, Dicalcium Phosphate, and Amorphous Calcium Phosphate, during Degradation, In Vitro. J Funct Biomater 2019; 10:E54. [PMID: 31783637 PMCID: PMC6963472 DOI: 10.3390/jfb10040054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 01/15/2023] Open
Abstract
Phosphoserine modified cements (PMC) exhibit unique properties, including strong adhesion to tissues and biomaterials. While TTCP-PMCs remodel into bone in vivo, little is known regarding the bioactivity and physiochemical changes that occur during resorption. In the present study, changes in the mechanical strength and composition were evaluated for 28 days, for three formulations of αTCP based PMCs. PMCs were significantly stronger than unmodified cement (38-49 MPa vs. 10 MPa). Inclusion of wollastonite in PMCs appeared to accelerate the conversion to hydroxyapatite, coincident with slight decrease in strength. In non-wollastonite PMCs the initial compressive strength did not change after 28 days in PBS (p > 0.99). Dissolution/degradation of PMC was evaluated in acidic (pH 2.7, pH 4.0), and supersaturated fluids (simulated body fluid (SBF)). PMCs exhibited comparable mass loss (<15%) after 14 days, regardless of pH and ionic concentration. Electron microscopy, infrared spectroscopy, and X-ray analysis revealed that significant amounts of brushite, octacalcium phosphate, and hydroxyapatite reprecipitated, following dissolution in acidic conditions (pH 2.7), while amorphous calcium phosphate formed in SBF. In conclusion, PMC surfaces remodel into metastable precursors to hydroxyapatite, in both acidic and neutral environments. By tuning the composition of PMCs, durable strength in fluids, and rapid transformation can be obtained.
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Affiliation(s)
| | - Michael Pujari-Palmer
- Applied Material Science, Department of Engineering, Uppsala University, 75121 Uppsala, Sweden;
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24
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Hayashi K, Kishida R, Tsuchiya A, Ishikawa K. Honeycomb blocks composed of carbonate apatite, β-tricalcium phosphate, and hydroxyapatite for bone regeneration: effects of composition on biological responses. Mater Today Bio 2019; 4:100031. [PMID: 32159156 PMCID: PMC7061555 DOI: 10.1016/j.mtbio.2019.100031] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/02/2019] [Accepted: 09/14/2019] [Indexed: 10/26/2022] Open
Abstract
Synthetic scaffolds exhibiting bone repair ability equal to that of autogenous bone are required in the fields of orthopedics and dentistry. A suitable synthetic bone graft substitute should induce osteogenic differentiation of mesenchymal stem cells, osteogenesis, and angiogenesis. In this study, three types of honeycomb blocks (HCBs), composed of hydroxyapatite (HAp), β-tricalcium phosphate (TCP), and carbonate apatite (CO3Ap), were fabricated, and the effects of HCB composition on bone formation and maturation were investigated. The HC structure was selected to promote cell penetration and tissue ingrowth. HAp and β-TCP HCBs were fabricated by extrusion molding followed by sintering. The CO3Ap HCBs were fabricated by extrusion molding followed by sintering and dissolution-precipitation reactions. These HCBs had similar macroporous structures: all harbored uniformly distributed macropores (∼160 μm) that were regularly arrayed and penetrated the blocks unidirectionally. Moreover, the volumes of macropores were nearly equal (∼0.15 cm3/g). The compressive strengths of CO3Ap, HAp, and β-TCP HCBs were 22.8 ± 3.5, 34.2 ± 3.3, and 24.4 ± 2.4 MPa, respectively. Owing to the honeycomb-type macroporous structure, the compressive strengths of these HCBs were higher than those of commercial scaffolds with intricate three-dimensional or unidirectional macroporous structure. Notably, bone maturation was markedly faster in CO3Ap HCB grafting than in β-TCP and HAp HCB grafting, and the mature bone area percentages for CO3Ap HCBs at postsurgery weeks 4 and 12 were 14.3- and 4.3-fold higher and 7.5- and 1.4-fold higher than those for HAp and β-TCP HCBs, respectively. The differences in bone maturation and formation were probably caused by the disparity in concentrations of calcium ions surrounding the HCBs, which were dictated by the inherent material resorption behavior and mechanism; generally, CO3Ap is resorbed only by osteoclastic resorption, HAp is not resorbed, and β-TCP is rapidly dissolved even in the absence of osteoclasts. Besides the composition, the microporous structure of HC struts, inevitably generated during the formation of HCBs of various compositions, may contribute to the differences in bone maturation and formation.
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Key Words
- Bone regeneration
- Bone-graft substitute
- Fourier transform infrared, FTIR
- Osteogenesis
- Osteogenic differentiation
- Scaffold
- blood vessels, BV
- calcium phosphate, CaP
- carbonate apatite, CO3Ap
- hematoxylin-eosin, HE
- honeycomb blocks, HCBs
- honeycomb, HC
- hydroxyapatite, HAp
- mesenchymal stem cells, MSCs
- osteoblast, OB
- osteoclasts, OCs
- postoperative week, POW
- tricalcium phosphate, TCP
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Affiliation(s)
- K. Hayashi
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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25
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Khurana K, Guillem-Marti J, Soldera F, Mücklich F, Canal C, Ginebra MP. Injectable calcium phosphate foams for the delivery of Pitavastatin as osteogenic and angiogenic agent. J Biomed Mater Res B Appl Biomater 2019; 108:760-770. [PMID: 31187939 DOI: 10.1002/jbm.b.34430] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 05/22/2019] [Accepted: 05/26/2019] [Indexed: 12/20/2022]
Abstract
Apatitic bone cements have been used as a clinical bone substitutes and drug delivery vehicles for therapeutic agents in orthopedic applications. This has led to their combination with different drugs with known ability to foster bone formation. Recent studies have evaluated Simvastatin for its role in enhanced bone regeneration, but its lipophilicity hampers incorporation and release to and from the bone graft. In this study, injectable calcium phosphate foams (i-CPF) based on α-tricalcium phosphate were loaded for the first time with Pitavastatin. The stability of the drug in different conditions relevant to this study, the effect of the drug on the i-CPFs properties, the release profile, and the in vitro biological performance with regard to mineralization and vascularization were investigated. Pitavastatin did not cause any changes in neither the micro nor the macro structure of the i-CPFs, which retained their biomimetic features. PITA-loaded i-CPFs showed a dose-dependent drug release, with early stage release kinetics clearly affected by the evolving microstructure due to the setting of cement. in vitro studies showed dose-dependent enhancement of mineralization and vascularization. Our findings contribute towards the design of controlled release with low drug dosing bone grafts: i-CPFs loaded with PITA as osteogenic and angiogenic agent.
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Affiliation(s)
- Kanupriya Khurana
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Chair of Functional Materials, Department of Materials Science and Engineering, Saarland University, Germany
| | - Jordi Guillem-Marti
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - Flavio Soldera
- Chair of Functional Materials, Department of Materials Science and Engineering, Saarland University, Germany
| | - Frank Mücklich
- Chair of Functional Materials, Department of Materials Science and Engineering, Saarland University, Germany
| | - Cristina Canal
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.,Institute of Bioengineering of Catalonia (IBEC), Barcelona, Spain
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26
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Zhang J, Wu H, He F, Wu T, Zhou L, Ye J. Concentration-dependent osteogenic and angiogenic biological performances of calcium phosphate cement modified with copper ions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:1199-1212. [PMID: 30889654 DOI: 10.1016/j.msec.2019.02.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 01/26/2019] [Accepted: 02/13/2019] [Indexed: 01/14/2023]
Abstract
Development of multifunctional bone grafting biomaterials with both osteogenesis and angiogenesis properties have earned increasing interest in the field of regenerative medicine. In the present investigation, copper-doped β-tricalcium phosphate (Cu-TCP) powders were successfully synthesized. And Cu-containing calcium phosphate cement (Cu-CPC) was acquired through uniformly mixing CPC and Cu-TCP powders, with Cu-TCP serving as the donor of Cu2+. Cu-CPC exhibited suitable setting time, and the incorporation of Cu-TCP aggregating into CPC exhibited positive effect on the compressive strength while Cu2+ was in lower concentration. Investigation results showed that Cu-CPC had relatively low releasing amount of Cu2+, which was attributed to the re-bonding of Cu2+ into the newly formed HA crystals on surface. In vitro osteogenesis and angiogenesis properties of Cu-CPC were systematically evaluated through co-culture with mouse bone marrow stromal cells (mBMSCs) and human umbilical vein endothelial cells (HUVECs) respectively. The results indicated dose-dependent biological functions of Cu2+ in Cu-CPCs. The mBMSCs and HUVECs showed well activity and attachment morphology on TCP/CPC, 0.05 Cu-TCP/CPC, 0.1 Cu-TCP/CPC. The upregulated osteogenic-related genes expression and angiogenic-related genes expression were detected with lower Cu2+ content. Taken together, Cu-containing CPC is of great potential for the regeneration of vascularized new bone.
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Affiliation(s)
- Jing Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huae Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fupo He
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tingting Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou 510006, China
| | - Lian Zhou
- Department of Stomatology, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Science (CAMS) and PUMC, Beijing 100730, China
| | - Jiandong Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
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27
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Raymond S, Maazouz Y, Montufar EB, Perez RA, González B, Konka J, Kaiser J, Ginebra MP. Accelerated hardening of nanotextured 3D-plotted self-setting calcium phosphate inks. Acta Biomater 2018; 75:451-462. [PMID: 29842972 DOI: 10.1016/j.actbio.2018.05.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/03/2018] [Accepted: 05/25/2018] [Indexed: 11/30/2022]
Abstract
Direct ink writing (DIW) techniques open up new possibilities for the fabrication of patient-specific bone grafts. Self-setting calcium phosphate inks, which harden at low temperature, allow obtaining nanostructured scaffolds with biomimetic properties and enhanced bioactivity. However, the slow hardening kinetics hampers the translation to the clinics. Different hydrothermal treatments for the consolidation of DIW scaffolds fabricated with an α-tricalcium phosphate /pluronic F127 ink were explored, comparing them with a biomimetic treatment. Three different scaffold architectures were analysed. The hardening process, associated to the conversion of α-tricalcium phosphate to hydroxyapatite was drastically accelerated by the hydrothermal treatments, reducing the time for complete reaction from 7 days to 30 minutes, while preserving the scaffold architectural integrity and retaining the nanostructured features. β-tricalcium phosphate was formed as a secondary phase, and a change of morphology from plate-like to needle-like crystals in the hydroxyapatite phase was observed. The binder was largely released during the treatment. The hydrothermal treatment resulted in a 30% reduction of the compressive strength, associated to the residual presence of β-tricalcium phosphate. Biomimetic and hydrothermally treated scaffolds supported the adhesion and proliferation of rat mesenchymal stem cells, indicating a good suitability for bone tissue engineering applications. STATEMENT OF SIGNIFICANCE 3D plotting has opened up new perspectives in the bone regeneration field allowing the customisation of synthetic bone grafts able to fit patient-specific bone defects. Moreover, this technique allows the control of the scaffolds' architecture and porosity. The present work introduces a new method to harden biomimetic hydroxyapatite 3D-plotted scaffolds which avoids high-temperature sintering. It has two main advantages: i) it is fast and simple, reducing the whole fabrication process from the several days required for the biomimetic processing to a few hours; and ii) it retains the nanostructured character of biomimetic hydroxyapatite and allows controlling the porosity from the nano- to the macroscale. Moreover, the good in vitro cytocompatibility results support its suitability for cell-based bone regeneration therapies.
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Affiliation(s)
- Santiago Raymond
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Mimetis Biomaterials, Cerdanyola del Vallès, Barcelona, Spain
| | - Yassine Maazouz
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Mimetis Biomaterials, Cerdanyola del Vallès, Barcelona, Spain
| | - Edgar B Montufar
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; CEITEC - Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Roman A Perez
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; UIC Regenerative Medicine Research Institute. Universitat Internacional de Catalunya (UIC), Barcelona, Spain
| | - Borja González
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - Joanna Konka
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - Jozef Kaiser
- CEITEC - Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Maria-Pau Ginebra
- Dept. Materials Science and Metallurgical Engineering, Group of Biomaterials, Biomechanics and Tissue Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain.
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28
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Shin DY, Kang MH, Kang IG, Kim HE, Jeong SH. In vitro and in vivo evaluation of polylactic acid-based composite with tricalcium phosphate microsphere for enhanced biodegradability and osseointegration. J Biomater Appl 2018; 32:1360-1370. [DOI: 10.1177/0885328218763660] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A biodegradable polylactic acid composite containing tricalcium phosphate microsphere was fabricated. The composite exhibited enhanced biocompatibility and a well-interconnected porous structure that enabled tissue ingrowth after degradation. The tricalcium phosphate microspheres had an average size of 106 ± 43 μm and were incorporated into the polylactic acid matrix using a high-shear mixer. The resulting bioactivity and hydrophilicity were enhanced to levels comparable to those of a polylactic acid composite containing tricalcium phosphate powder, which is a well-known material used in the medical field. An accelerated 30-day degradation test in HCl revealed successful generation of an open porous structure with ∼98% interconnectivity in the polylactic acid–tricalcium phosphate microsphere composite, demonstrating the potential of this material to induce enhanced osseointegration in the later stage of bone regeneration. The early stage osseointegration was also evaluated by implanting the composite in vivo using a rabbit femoral defect model. After 16 weeks of implantation, the bone-to-implant contact ratio of the polylactic acid–tricalcium phosphate microsphere composite was enhanced owing to tissue ingrowth through the generated pores near the surface.
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Affiliation(s)
- Da Yong Shin
- Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Min-Ho Kang
- Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - In-Gu Kang
- Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyoun-Ee Kim
- Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Seol-Ha Jeong
- Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
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29
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Self-Setting Calcium Orthophosphate (CaPO4) Formulations. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/978-981-10-5975-9_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Das D, Bang S, Zhang S, Noh I. Bioactive Molecules Release and Cellular Responses of Alginate-Tricalcium Phosphate Particles Hybrid Gel. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E389. [PMID: 29135939 PMCID: PMC5707606 DOI: 10.3390/nano7110389] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 11/07/2017] [Accepted: 11/13/2017] [Indexed: 12/14/2022]
Abstract
In this article, a hybrid gel has been developed using sodium alginate (Alg) and α-tricalcium phosphate (α-TCP) particles through ionic crosslinking process for the application in bone tissue engineering. The effects of pH and composition of the gel on osteoblast cells (MC3T3) response and bioactive molecules release have been evaluated. At first, a slurry of Alg and α-TCP has been prepared using an ultrasonicator for the homogeneous distribution of α-TCP particles in the Alg network and to achieve adequate interfacial interaction between them. After that, CaCl2 solution has been added to the slurry so that ionic crosslinked gel (Alg-α-TCP) is formed. The developed hybrid gel has been physico-chemically characterized using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and a swelling study. The SEM analysis depicted the presence of α-TCP micro-particles on the surface of the hybrid gel, while cross-section images signified that the α-TCP particles are fully embedded in the porous gel network. Different % swelling ratio at pH 4, 7 and 7.4 confirmed the pH responsiveness of the Alg-α-TCP gel. The hybrid gel having lower % α-TCP particles showed higher % swelling at pH 7.4. The hybrid gel demonstrated a faster release rate of bovine serum albumin (BSA), tetracycline (TCN) and dimethyloxalylglycine (DMOG) at pH 7.4 and for the grade having lower % α-TCP particles. The MC3T3 cells are viable inside the hybrid gel, while the rate of cell proliferation is higher at pH 7.4 compared to pH 7. The in vitro cytotoxicity analysis using thiazolyl blue tetrazolium bromide (MTT), bromodeoxyuridine (BrdU) and neutral red assays ascertained that the hybrid gel is non-toxic for MC3T3 cells. The experimental results implied that the non-toxic and biocompatible Alg-α-TCP hybrid gel could be used as scaffold in bone tissue engineering.
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Affiliation(s)
- Dipankar Das
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science of Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea.
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science of Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea.
| | - Sumi Bang
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science of Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea.
| | - Shengmin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Insup Noh
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science of Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea.
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science of Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea.
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31
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Pajovich HT, Banerjee IA. Biomineralization of Fucoidan-Peptide Blends and Their Potential Applications in Bone Tissue Regeneration. J Funct Biomater 2017; 8:E41. [PMID: 29036882 PMCID: PMC5618292 DOI: 10.3390/jfb8030041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/11/2017] [Accepted: 09/13/2017] [Indexed: 02/07/2023] Open
Abstract
Fucoidan (Fuc), a natural polysaccharide derived from brown seaweed algae, and gelatin (Gel) were conjugated to form a template for preparation of biomimetic scaffolds for potential applications in bone tissue regeneration. To the Fuc-Gel we then incorporated the peptide sequence MTNYDEAAMAIASLN (MTN) derived from the E-F hand domain, known for its calcium binding properties. To mimic the components of the extracellular matrix of bone tissue, the Fuc-Gel-MTN assemblies were incubated in simulated body fluid (SBF) to induce biomineralization, resulting in the formation of β-tricalcium phosphate, and hydroxyapatite (HAp). The formed Fuc-Gel-MTN-beta-TCP/HAP scaffolds were found to display an average Young's Modulus value of 0.32 GPa (n = 5) with an average surface roughness of 91 nm. Rheological studies show that the biomineralized scaffold exhibited higher storage and loss modulus compared to the composites formed before biomineralization. Thermal phase changes were studied through DSC and TGA analysis. XRD and EDS analyses indicated a biphasic mixture of β-tricalcium phosphate and hydroxyapatite and the composition of the scaffold. The scaffold promoted cell proliferation, differentiation and displayed actin stress fibers indicating the formation of cell-scaffold matrices in the presence of MT3C3-E1 mouse preosteoblasts. Osteogenesis and mineralization were found to increase with Fuc-Gel-MTN-beta-TCP/HAP scaffolds. Thus, we have developed a novel scaffold for possible applications in bone tissue engineering.
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Affiliation(s)
- Harrison T Pajovich
- Department of Chemistry, Fordham University, 441 E Fordham Rd, Bronx, NY 10458, USA.
| | - Ipsita A Banerjee
- Department of Chemistry, Fordham University, 441 E Fordham Rd, Bronx, NY 10458, USA.
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Diez-Escudero A, Espanol M, Beats S, Ginebra MP. In vitro degradation of calcium phosphates: Effect of multiscale porosity, textural properties and composition. Acta Biomater 2017; 60:81-92. [PMID: 28739544 DOI: 10.1016/j.actbio.2017.07.033] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/02/2017] [Accepted: 07/20/2017] [Indexed: 10/19/2022]
Abstract
The capacity of calcium phosphates to be replaced by bone is tightly linked to their resorbability. However, the relative importance of some textural parameters on their degradation behavior is still unclear. The present study aims to quantify the effect of composition, specific surface area (SSA), and porosity at various length scales (nano-, micro- and macroporosity) on the in vitro degradation of different calcium phosphates. Degradation studies were performed in an acidic medium to mimic the osteoclastic environment. Small degradations were found in samples with interconnected nano- and micropores with sizes below 3µm although they were highly porous (35-65%), with maximum weight loss of 8wt%. Biomimetic calcium deficient hydroxyapatite, with high SSA and low crystallinity, presented the highest degradation rates exceeding even the more soluble β-TCP. A dependence of degradation on SSA was indisputable when porosity and pore sizes were increased. The introduction of additional macroporosity with pore interconnections above 20µm significantly impacted degradation, more markedly in the substrates with high SSA (>15m2/g), whereas in sintered substrates with low SSA (<1m2/g) it resulted just in a linear increase of degradation. Up to 30 % of degradation was registered in biomimetic substrates, compared to 15 % in β-TCP or 8 % in sintered hydroxyapatite. The incorporation of carbonate in calcium deficient hydroxyapatite did not increase its degradation rate. Overall, the study highlights the importance of textural properties, which can modulate or even outweigh the effect of other features such as the solubility of the compounds. STATEMENT OF SIGNIFICANCE The physicochemical features of calcium phosphates are crucial to tune biological events like resorption during bone remodeling. Understanding in vitro resorption can help to predict the in vivo behavior. Besides chemical composition, other parameters such as porosity and specific surface area have a strong influence on resorption. The complexity of isolating the contribution of each parameter lies in the close interrelation between them. In this work, a multiscale study was proposed to discern the extent to which each parameter influences degradation in a variety of calcium phosphates, using an acidic medium to resemble the osteoclastic environment. The results emphasize the importance of textural properties, which can modulate or even outweigh the effect of the intrinsic solubility of the compounds.
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Rau JV, Wu VM, Graziani V, Fadeeva IV, Fomin AS, Fosca M, Uskoković V. The Bone Building Blues: Self-hardening copper-doped calcium phosphate cement and its in vitro assessment against mammalian cells and bacteria. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629018 DOI: 10.1016/j.msec.2017.05.052] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A blue calcium phosphate cement with optimal self-hardening properties was synthesized by doping whitlockite (β-TCP) with copper ions. The mechanism and the kinetics of the cement solidification process were studied using energy dispersive X-ray diffraction and it was found out that hardening was accompanied by the phase transition from TCP to brushite. Reduced lattice parameters in all crystallographic directions resulting from the rather low (1:180) substitution rate of copper for calcium was consistent with the higher ionic radius of the latter. The lower cationic hydration resulting from the partial Ca→Cu substitution facilitated the release of constitutive hydroxyls and lowered the energy of formation of TCP from the apatite precursor at elevated temperatures. Addition of copper thus effectively inhibited the formation of apatite as the secondary phase. The copper-doped cement exhibited an antibacterial effect, though exclusively against Gram-negative bacteria, including E. coli, P. aeruginosa and S. enteritidis. This antibacterial effect was due to copper ions, as demonstrated by an almost negligible antibacterial effect of the pure, copper-free cement. Also, the antibacterial activity of the copper-containing cement was significantly higher than that of its precursor powder. Since there was no significant difference between the kinetics of the release of copper from the precursor TCP powder and from the final, brushite phase of the hardened cement, this has suggested that the antibacterial effect was not solely due to copper ions, but due to the synergy between cationic copper and a particular phase and aggregation state of calcium phosphate. Though inhibitory to bacteria, the copper-doped cement increased the viability of human glial E297 cells, murine osteoblastic K7M2 cells and especially human primary lung fibroblasts. That this effect was also due to copper ions was evidenced by the null effect on viability increase exhibited by the copper-free cements. The difference in the mechanism of protection of dehydratases in prokaryotes and eukaryotes was used as a rationale for explaining the hereby evidenced selectivity in biological response. It presents the basis for the consideration of copper as a dually effective ion when synergized with calcium phosphates: toxic for bacteria and beneficial for the healthy cells.
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Affiliation(s)
- Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100-00133 Rome, Italy.
| | - Victoria M Wu
- Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, USA
| | - Valerio Graziani
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100-00133 Rome, Italy
| | - Inna V Fadeeva
- AA Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky prospect 49, 119991 Moscow, Russia
| | - Alexander S Fomin
- AA Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky prospect 49, 119991 Moscow, Russia
| | - Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100-00133 Rome, Italy
| | - Vuk Uskoković
- Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, USA.
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Arahira T, Maruta M, Matsuya S. Characterization and in vitro evaluation of biphasic α-tricalcium phosphate/β-tricalcium phosphate cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 74:478-484. [DOI: 10.1016/j.msec.2016.12.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 11/25/2016] [Accepted: 12/11/2016] [Indexed: 12/30/2022]
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O'Neill R, McCarthy HO, Montufar EB, Ginebra MP, Wilson DI, Lennon A, Dunne N. Critical review: Injectability of calcium phosphate pastes and cements. Acta Biomater 2017; 50:1-19. [PMID: 27838464 DOI: 10.1016/j.actbio.2016.11.019] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 11/03/2016] [Accepted: 11/08/2016] [Indexed: 12/26/2022]
Abstract
Calcium phosphate cements (CPC) have seen clinical success in many dental and orthopaedic applications in recent years. The properties of CPC essential for clinical success are reviewed in this article, which includes properties of the set cement (e.g. bioresorbability, biocompatibility, porosity and mechanical properties) and unset cement (e.g. setting time, cohesion, flow properties and ease of delivery to the surgical site). Emphasis is on the delivery of calcium phosphate (CaP) pastes and CPC, in particular the occurrence of separation of the liquid and solid components of the pastes and cements during injection; and established methods to reduce this phase separation. In addition a review of phase separation mechanisms observed during the extrusion of other biphasic paste systems and the theoretical models used to describe these mechanisms are discussed. STATEMENT OF SIGNIFICANCE Occurrence of phase separation of calcium phosphate pastes and cements during injection limits their full exploitation as a bone substitute in minimally invasive surgical applications. Due to lack of theoretical understanding of the phase separation mechanism(s), optimisation of an injectable CPC that satisfies clinical requirements has proven difficult. However, phase separation of pastes during delivery has been the focus across several research fields. Therefore in addition to a review of methods to reduce phase separation of CPC and the associated constraints, a review of phase separation mechanisms observed during extrusion of other pastes and the theoretical models used to describe these mechanisms is presented. It is anticipated this review will benefit future attempts to develop injectable calcium phosphate based systems.
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Affiliation(s)
- R O'Neill
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Ashby Building, Stranmillis Rd, Belfast BT9 5AH, United Kingdom
| | - H O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - E B Montufar
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya. BarcelonaTech (UPC), Av. Diagonal 647, 08028 Barcelona, Spain; Institute for Bioengineering of Catalonia, C. Baldiri Reixach 10, 08028 Barcelona, Spain
| | - M-P Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya. BarcelonaTech (UPC), Av. Diagonal 647, 08028 Barcelona, Spain; Institute for Bioengineering of Catalonia, C. Baldiri Reixach 10, 08028 Barcelona, Spain
| | - D I Wilson
- Department of Chemical Engineering and Biotechnology, New Museums Site, Pembroke Street, University of Cambridge, CB2 3RA, United Kingdom
| | - A Lennon
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Ashby Building, Stranmillis Rd, Belfast BT9 5AH, United Kingdom
| | - N Dunne
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland; Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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Diez-Escudero A, Espanol M, Montufar EB, Di Pompo G, Ciapetti G, Baldini N, Ginebra MP. Focus Ion Beam/Scanning Electron Microscopy Characterization of Osteoclastic Resorption of Calcium Phosphate Substrates. Tissue Eng Part C Methods 2017; 23:118-124. [DOI: 10.1089/ten.tec.2016.0361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Anna Diez-Escudero
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC), Barcelona, Spain
- Center for Research in NanoEngineering (CRnE), UPC, Barcelona, Spain
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC), Barcelona, Spain
- Center for Research in NanoEngineering (CRnE), UPC, Barcelona, Spain
| | - Edgar B. Montufar
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC), Barcelona, Spain
- Center for Research in NanoEngineering (CRnE), UPC, Barcelona, Spain
| | - Gemma Di Pompo
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IstitutoOrtopedico Rizzoli, Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Gabriela Ciapetti
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IstitutoOrtopedico Rizzoli, Bologna, Italy
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IstitutoOrtopedico Rizzoli, Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC), Barcelona, Spain
- Center for Research in NanoEngineering (CRnE), UPC, Barcelona, Spain
- Institute for Bioengineering of Catalonia, Barcelona, Spain
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Zhu H, Guo D, Qi W, Xu K. Development of Sr-incorporated biphasic calcium phosphate bone cement. ACTA ACUST UNITED AC 2017; 12:015016. [PMID: 28094246 DOI: 10.1088/1748-605x/12/1/015016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
To follow the design strategy of traditional biphasic calcium phosphate (BCP) ceramic, in the present study, strontium-doped biphasic calcium phosphate bone cement (Sr-BCPC) composites comprising Sr-β-tricalcium phosphate (TCP)/Sr-hydroxyapatite (HAP) had been prepared for the first time using Sr x -β-TCP/tetracalcium phosphate (TTCP) as a cement powder and diluted phosphoric acid as a cement liquid. The phase composition, setting time, compressive strength, washout resistance, in vitro degradation rate, microstructure evolutions, hydration dynamics and cytotoxicity of Sr-BCPC at various Sr contents were intensively investigated. It was found that the final cement product was composed of entangled Sr-HAP nano-needles and cobblestone-like Sr-β-TCP sub-micron particles, and the weight percentages in the final cement product after hydration in simulated body fluid for 24 h were in the ranges of 60 wt%-70 wt% Sr-HAP and 30 wt%-40 wt% Sr-β-TCP, respectively. Sr and the concentration of Sr exhibit significant effects on the phase compositions, compressive strength, setting time, in vitro degradation rate and cytotoxicity of the biphasic bone cement. In particular, the degradation rate increased considerably with the increase of the Sr-β-TCP phase. It is anticipated that the introduction of the 'biphasic' design into calcium phosphate bone cements is an effective strategy to improve their degradation properties.
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Affiliation(s)
- Hui Zhu
- State Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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Shao RX, Quan RF, Huang XL, Wang T, Xie SJ, Gao HH, Wei XC, Yang DS. Evaluation of porous gradient hydroxyapatite/zirconia composites for repair of lumbar vertebra defect in dogs. J Biomater Appl 2016; 30:1312-21. [PMID: 26809701 DOI: 10.1177/0885328215627616] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective To evaluate the effects of porous gradient composites with hydroxyapatite/zirconia and autologous iliac in repair of lumbar vertebra body defects in dogs. Methods (1) New porous gradient hydroxyapatite/zirconia composites were prepared using foam immersion, gradient compound and high temperature sintering; (2) A total of 18 adult beagle dogs, aged five to eight months and weighted 10–13 kg, were randomly assigned into two subgroups, which were implanted with new porous gradient hydroxyapatite/zirconia composites (subgroup A in 12) or autologous iliac bone (subgroup B in 6); (3) The post-operative data were analyzed and compared between the subgroups to repair the vertebral body defect by roentgenoscopy, morphology and biomechanics. Results The porosity of new porous gradient hydroxyapatite/zirconia composites is at 25 poles per inch, and the size of pores is at between 150 and 300 µm. The post-operative roentgenoscopy displayed that new-bone formation is increased gradually, and the interface between composites and host-bone becomes became blur, and the new-bone around the composites were integrated into host-bone at 24 weeks postoperatively in subgroup A. As to subgroup B, the resorption and restructure were found at six weeks after the surgery, and the graft-bone and host-bone have been integrated completely without obvious boundary at 24 weeks postoperatively. Histomorphologic study showed that the amount of bone within pores of the porous gradient hydroxyapatite/zirconia composites increased continuously with a prolonged implantation time, and that partial composites were degradated and replaced by new-bone trabeculae. There was no significant difference between subgroups ( P > 0.05) in the ultimate compressive strengths. Conclusion New porous gradient hydroxyapatite/zirconia composites can promote the repair of bony defect, and induce bone tissue to ingrow into the pores, which may be applied widely to the treatment of bony defect in the future.
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Affiliation(s)
- Rong-Xue Shao
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Ren-Fu Quan
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Zhejiang, China
| | - Xiao-Long Huang
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Tuo Wang
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Shang-Ju Xie
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Zhejiang, China
| | - Huan-Huan Gao
- Yunnan University of Traditional Chinese Medicine, YunNan, China
| | - Xi-Cheng Wei
- School of Materials Science and Engineering, Shanghai University, Shanghai, China
| | - Di-Sheng Yang
- Department of Orthopedics, The Second Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China
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Hollow CDHA nanorods with mesopores on surface: Bi-micelle-templating method, dissolvability, cytocompatibility and protein delivery. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2015.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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