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Sadeghian Dehkord E, De Carvalho B, Ernst M, Albert A, Lambert F, Geris L. Influence of physicochemical characteristics of calcium phosphate-based biomaterials in cranio-maxillofacial bone regeneration. A systematic literature review and meta-analysis of preclinical models. Mater Today Bio 2024; 26:101100. [PMID: 38854953 PMCID: PMC11157282 DOI: 10.1016/j.mtbio.2024.101100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives Calcium phosphate-based biomaterials (CaP) are the most widely used biomaterials to enhance bone regeneration in the treatment of alveolar bone deficiencies, cranio-maxillofacial and periodontal infrabony defects, with positive preclinical and clinical results reported. This systematic review aimed to assess the influence of the physicochemical properties of CaP biomaterials on the performance of bone regeneration in preclinical animal models. Methods The PubMed, EMBASE and Web of Science databases were searched to retrieve the preclinical studies investigating physicochemical characteristics of CaP biomaterials. The studies were screened for inclusion based on intervention (physicochemical characterization and in vivo evaluation) and reported measurable outcomes. Results A total of 1532 articles were retrieved and 58 studies were ultimately included in the systematic review. A wide range of physicochemical characteristics of CaP biomaterials was found to be assessed in the included studies. Despite a high degree of heterogeneity, the meta-analysis was performed on 39 studies and evidenced significant effects of biomaterial characteristics on their bone regeneration outcomes. The study specifically showed that macropore size, Ca/P ratio, and compressive strength exerted significant influence on the formation of newly regenerated bone. Moreover, factors such as particle size, Ca/P ratio, and surface area were found to impact bone-to-material contact during the regeneration process. In terms of biodegradability, the amount of residual graft was determined by macropore size, particle size, and compressive strength. Conclusion The systematic review showed that the physicochemical characteristics of CaP biomaterials are highly determining for scaffold's performance, emphasizing its usefulness in designing the next generation of bone scaffolds to target higher rates of regeneration.
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Affiliation(s)
- Ehsan Sadeghian Dehkord
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
| | - Bruno De Carvalho
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Marie Ernst
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
| | - Adelin Albert
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
- Department of Public Health Sciences, University of Liège, Belgium
| | - France Lambert
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Liesbet Geris
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
- Department of Mechanical Engineering, Biomechanics Section (BMe), KU Leuven, Belgium
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Codrea CI, Lincu D, Ene VL, Nicoară AI, Stan MS, Ficai D, Ficai A. Three-Dimensional-Printed Composite Scaffolds Containing Poly-ε-Caprolactone and Strontium-Doped Hydroxyapatite for Osteoporotic Bone Restoration. Polymers (Basel) 2024; 16:1511. [PMID: 38891458 PMCID: PMC11174839 DOI: 10.3390/polym16111511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 05/16/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
A challenge in tissue engineering and the pharmaceutical sector is the development of controlled local release of drugs that raise issues when systemic administration is applied. Strontium is an example of an effective anti-osteoporotic agent, used in treating osteoporosis due to both anti-resorptive and anabolic mechanisms of action. Designing bone scaffolds with a higher capability of promoting bone regeneration is a topical research subject. In this study, we developed composite multi-layer three-dimensional (3D) scaffolds for bone tissue engineering based on nano-hydroxyapatite (HA), Sr-containing nano-hydroxyapatite (SrHA), and poly-ε-caprolactone (PCL) through the material extrusion fabrication technique. Previously obtained HA and SrHA with various Sr content were used for the composite material. The chemical, morphological, and biocompatibility properties of the 3D-printed scaffolds obtained using HA/SrHA and PCL were investigated. The 3D composite scaffolds showed good cytocompatibility and osteogenic potential, which is specifically recommended in applications when faster mineralization is needed, such as osteoporosis treatment.
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Affiliation(s)
- Cosmin Iulian Codrea
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania
| | - Daniel Lincu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania
| | - Vladimir Lucian Ene
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Adrian Ionuț Nicoară
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Miruna Silvia Stan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, 050095 Bucharest, Romania;
| | - Denisa Ficai
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (C.I.C.); (D.L.); (A.I.N.); (D.F.); (A.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- The Academy of Romanian Scientists, Ilfov St. 3, 050044 Bucharest, Romania
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Marques D, Teixeira LN, Elias CN, Lemos AB, Martinez EF. Surface topography of resorbable porcine collagen membranes, and their effect on early osteogenesis: An in vitro study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101607. [PMID: 37582461 DOI: 10.1016/j.jormas.2023.101607] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/08/2023] [Accepted: 08/12/2023] [Indexed: 08/17/2023]
Abstract
OBJECTIVE Guided tissue regeneration (GTR) is based on the use of different membranes that function as sealants and barriers in specific clinical situations. Among the several tissue production methods and origins, resorbable porcine-derived membranes are the most commonly used. Because these membranes are so diverse, and have several different clinical applications, doubts linger as to their effect in stimulating osteogenesis. The objective of this study was to make an in vitro evaluation of the viability and differentiation of osteoblastic cells cultured on the surface of the following collagen membranes: Jason® (Botiss Biomaterials), Collprotect® (Botiss Biomaterials), and Bio-Gide® (Geistlich). MATERIAL AND METHODS Fragments of the 3 resorbable collagen membranes (5 × 5 mm) were used, and pre-osteoblastic SAOS-2 cells (ATCC, USA) were plated on their porous surfaces. Evaluation of the membranes was performed at 3, 5 and 7 days, considering the following parameters: (1) topographic analysis of the different surfaces by scanning electron microscope; (2) cellular viability by MTT, (3) quantification of type I collagen and osteopontin by Elisa. The quantitative analyses were carried out using a significance level of 5%. RESULTS Collprotect® and Jason® membranes presented a rough surface with an irregular aspect on both sides, while double-layered Bio-Gide® had one layer with a smooth surface and the other with a rough surface along each respective length. The viability assays revealed that the cells cultured the cells grown on Collprotect® showed higher viability than those grown in Bio-Gide® or Jason®, especially after 5 and 7 days. After 3 and 5 days, evaluation of type I collagen showed that the cells plated on the Jason® and Collprotect® surfaces had greater collagen secretion than those plated on BioGide®. After 7 days, an increase in osteopontin levels was observed when the cells were plated on all the experimental membranes, compared with the control group. CONCLUSION All the tested membranes were suitable for use in GTR clinical procedures. Their indication in specific regenerative cases depends on the mechanical and biological properties of their originating tissues, thus enabling better results and assertive choices by dental professionals.
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Affiliation(s)
- Dalton Marques
- Division of Oral Implantology, Faculdade São Leopoldo Mandic, Campinas, SP, Brazil
| | | | - Carlos Nelson Elias
- Instituto Militar de Engenharia, Departamento de Ciência dos Materiais, Rio de Janeiro, RJ, Brasil
| | - Alexandre Barboza Lemos
- Division of Oral Implantology, Faculdade São Leopoldo Mandic, Campinas, SP, Brazil; Instituto Militar de Engenharia, Departamento de Ciência dos Materiais, Rio de Janeiro, RJ, Brasil
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Frigério PB, Quirino LC, Gabrielli MAC, Carvalho PHDA, Garcia Júnior IR, Pereira-Filho VA. Evaluation of Bone Repair Using a New Biphasic Synthetic Bioceramic (Plenum ® Oss hp) in Critical Calvaria Defect in Rats. BIOLOGY 2023; 12:1417. [PMID: 37998016 PMCID: PMC10668970 DOI: 10.3390/biology12111417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
(1) Background: Biphasic bioceramics are synthetic bone substitutes that provide greater safety and better predictability in guided bone regeneration. This study aimed to evaluate the bone repair process using a new biphasic bioceramic of synthetic origin (Plenum® Osshp-70HA: 30β-TCP) in critical calvarial defects. (2) Methods: seventy-four defects were created in rat calvaria and divided into two groups-Plenum® Osshp (PO), right side, and Straumann® BoneCeramic™ (BC), left side. Euthanasia was performed at 7, 15, 30, and 60 days after surgery. (3) Results: Lower gene expression was observed for runt-related transcription factor 2 (RUNX2) and vascular endothelial growth factor (VEGF) and higher expression for Integrin Binding Sialoprotein (IBSP). The results correlated with moderate immunolabeling for osteocalcin (OCN) and slight immunolabeling for osteopontin (OPN) in the PO group. Histometry showed a greater amount of biomaterial remaining in the PO group at 60 days. The microtomographic analysis showed a lower density of bone connectivity and a greater thickness of the trabeculae for the remnants of the PO group. (4) Conclusions: the Plenum® Osshp showed no differences compared to BoneCeramic™ and is therefore considered an effective option as a synthetic bone substitute in bone regeneration.
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Affiliation(s)
- Paula Buzo Frigério
- Department of Diagnosis and Surgery, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo 16015-050, Brazil;
| | - Lilian Caldas Quirino
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Marisa Aparecida Cabrini Gabrielli
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Pedro Henrique de Azambuja Carvalho
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Idelmo Rangel Garcia Júnior
- Department of Diagnosis and Surgery, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo 16015-050, Brazil;
| | - Valfrido Antonio Pereira-Filho
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
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Destrez A, Colin E, Testelin S, Devauchelle B, Dakpé S, Naudot M. Evaluation of a Granular Bone Substitute for Bone Regeneration Using an Optimized In Vivo Alveolar Cleft Model. Bioengineering (Basel) 2023; 10:1035. [PMID: 37760137 PMCID: PMC10525109 DOI: 10.3390/bioengineering10091035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Alveolar cleft is a common congenital deformity that requires surgical intervention, notably using autologous bone grafts in young children. Bone substitutes, in combination with mesenchymal stem cells (MSCs), have shown promise in the repair of these defects. This study aimed to evaluate the regenerative capabilities of a granular bone substitute using an optimized alveolar cleft model. Thirty-six rats underwent a surgical procedure for the creation of a defect filled with a fragment of silicone. After 5 weeks, the silicone was removed and the biomaterial, with or without Wharton's jelly MSCs, was put into the defect, except for the control group. The rats underwent μCT scans immediately and after 4 and 8 weeks. Analyses showed a statistically significant improvement in bone regeneration in the two treatment groups compared with control at weeks 4 and 8, both for bone volume (94.64% ± 10.71% and 91.33% ± 13.30%, vs. 76.09% ± 7.99%) and mineral density (96.13% ± 24.19% and 93.01% ± 27.04%, vs. 51.64% ± 16.51%), but without having fully healed. This study validates our optimized alveolar cleft model in rats, but further work is needed to allow for the use of this granular bone substitute in the treatment of bone defects.
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Affiliation(s)
- Alban Destrez
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Emilien Colin
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Sylvie Testelin
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Bernard Devauchelle
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Stéphanie Dakpé
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Marie Naudot
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
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Varela PJR, Barros PAG, Montagner PG, Provout MB, Martinez EF, Suzuki SS, Garcez AS. Can Collagen Membrane on Bone Graft Interfere with Light Transmission and Influence Tissue Neoformation During Photobiomodulation? A Preliminary Study. Photobiomodul Photomed Laser Surg 2023; 41:167-174. [PMID: 37074308 DOI: 10.1089/photob.2022.0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023] Open
Abstract
Objective: This study qualitatively and quantitatively evaluated the transmission of light through a collagen membrane and the consequent local bone formation in a critical bone defect in vitro and in an animal model. Background: Currently, bone substitutes and collagen membranes are used to promote new bone formation; however, when associated with photobiomodulation, biomaterials can act as a barrier, hindering the passage of light radiation to the area to be treated. Methods: Light transmittance was evaluated in vitro with a power meter and a 100 mW, 808 nm laser source with and without membrane. Twenty-four male rats received a critical surgical defect of 5 mm in diameter in the calvarial bone, subsequently a biomaterial (Bio-Oss; Geistlich®, Switzerland) was applied, and the animals were divided into the following three groups: G1-collagen membrane and no irradiation; G2-collagen membrane and photobiomodulation (irradiation with 4 J of 808 nm); and G3-photobiomodulation (4 J) followed by a collagen membrane. Histomophometric analyses were performed at 7 and 14 days after euthanasia. Results: The membrane reduced the light transmittance (808 nm) by an average of 78%. Histomophometric analyses showed significant differences in new blood vessels on day 7 and bone neoformation on day 14. Irradiation without membrane interposition resulted in a 15% more neoformed bone compared with the control (G1), and 6.5% more bone compared with irradiation over the membrane (G2). Conclusions: The collagen membrane interferes with light penetration during photobiomodulation, decreases light dosimetry on the wound area, and interferes with bone neoformation.
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Silveira BBB, Teixeira LN, Miron RJ, Martinez EF. Effect of platelet-rich fibrin (PRF) membranes on the healing of infected skin wounds. Arch Dermatol Res 2023; 315:559-567. [PMID: 36201046 DOI: 10.1007/s00403-022-02401-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 11/02/2022]
Abstract
Tissue engineering focuses on wound healing and tissue regeneration. Platelet-rich fibrin (PRF) is a fibrin matrix containing cytokines, growth factors and cells that are gradually released into the wound over time. This study aimed to evaluate the effect of PRF membranes on wound repair and microbial control in infected wounds. Skin wounds were performed on the dorsum of rats using a 6 mm diameter metal punch. The defects were randomly assigned into four groups (n = 12/each) accordingly to the treatment: G1, noninfected wound filled only with clot; G2, noninfected wound with PRF; G3, infected wound (S. aureus) without PRF; G4, infected wound (S. aureus) with PRF. After 7 and 14 days, macroscopic and histological analyses of the wounds were performed. Furthermore, the quantification of β-defensin in PRF was measured by ELISA. At 14 days, the groups with PRF (G2 and G4) had wound sizes significantly smaller than the original defects (6 mm) (p < 0.05) and significantly smaller than those not treated with PRF, in both the infected and noninfected groups (p < 0.05). Furthermore, the groups with infected wounds (G3 and G4) demonstrated a significantly lower inflammation score in the PRF group than in the noninfected groups (p < 0.05). In vitro analysis of β-defensin was performed in all PRF membrane groups, and the median value was 1.444 pg/mL. PRF in the wounds of both control and infected rats played an important role in the modulation of tissue healing, most notably in infected sites.
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Affiliation(s)
| | - Lucas Novaes Teixeira
- Division of Cell Biology, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Rua José Rocha Junqueira, 13, CEP, Campinas, São Paulo, 13045-610, Brazil
| | - Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Elizabeth Ferreira Martinez
- Division of Cell Biology, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Rua José Rocha Junqueira, 13, CEP, Campinas, São Paulo, 13045-610, Brazil.
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Effect of ozone therapy on the modulation of inflammation and on new bone formation in critical defects of rat calvaria filled with autogenous graft. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101292. [PMID: 36150689 DOI: 10.1016/j.jormas.2022.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/19/2022] [Accepted: 09/19/2022] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effect of ozone therapy on new bone formation and inflammation modulation in defects of rat calvaria filled with autogenous bone. MATERIAL AND METHODS Critical size defects were created in the calvaria of 24 male Wistar rats. The animals were randomly divided into four groups according to the treatment: G1: clot; G2: clot and covered with xenogenic membrane; G3: particulate autogenous bone graft; G4: autogenous bone graft and application of 3 mL O2/O3 gas mixture (10 µg/ml). The defects were filled immediately after surgery with a bilateral retroauricular application, in the region immediately above the incision. After 21 days, the animals were euthanized, and the samples were processed for morphometric evaluations designed to measure both the intensity of the inflammatory infiltrate, and the presence of new bone formation in the defect. RESULTS The results showed a lower inflammation score and higher mean of newly formed bone in the region of the defect for the group associated with ozone therapy (G4). The bone formed in the region of the defect could be observed as being more lamellar and mineralized in the case of associated ozone therapy. CONCLUSION Ozone therapy represents a promising adjuvant therapy to accelerate tissue regeneration.
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Di Pillo MK, Montagner PG, Teixeira LN, Martinez EF. In vivo evaluation of a collagen membrane in bone neoformation: A morphological and histomorphometric study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101372. [PMID: 36574881 DOI: 10.1016/j.jormas.2022.101372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Guided bone regeneration (GBR) is a technique that involves the placement of mechanical barriers to protect the blood clot, and create an isolated space to prevent competition from epithelial and connective tissues in bone augmentation treatments. Collagen membranes stand out from other materials available for performing regenerative surgeries, and are widely used because of their ability to promote cell adhesion and homeostasis, and their biocompatibility, ease of handling, and low immunogenicity. In this context, researchers have investigated xenogenic membranes/barriers that cost less and have slower resorption rates. The current study aimed to assess the osteogenic potential induced by a crosslinked, synthesized xenogenic membrane 100 µm thick when applied in vivo to critical defects in rat calvaria. MATERIAL AND METHODS Critical size defects were created in the calvaria of thirty male Wistar rats, and randomly divided into the following two groups: G1 - clot covered with a commercial xenogenic membrane (Lumina-Coat®, Criteria, Brazil), and G2 - clot covered with a synthesized xenogenic membrane. The animals were euthanized after 7, 15 and 30 days, and samples of calvaria were processed to perform morphometric evaluations to measure bone neoformation in the defect region. In addition, ultrastructural characterization of the collagen membranes was performed by scanning electron microscope. The quantitative analyses were carried out by adopting a significance level of 5%. RESULTS The ultrastructural characterization revealed that the synthesized membrane had thicker collagen fibers and a more cohesive surface, compared with the Lumina-Coat® collagen membrane (G1). There was no significant difference in bone neoformation between the membranes (p>0.05), at any of the time periods analyzed. The bone quantification area increased significantly over time for both membranes (p<0.05). CONCLUSION The synthesized membrane exhibited morphological characteristics similar to those of the commercial membrane evaluated, allowed potentially active participation in the bone neoformation process, and served as a low-cost alternative for GBR procedures.
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Kim SJ, Kim JS, Kim W, Kim SY, Lee WP. Radiographic and Histomorphometric Evaluation of Sinus Floor Augmentation Using Biomimetic Octacalcium Phosphate Alloplasts: A Prospective Pilot Study. MATERIALS 2022; 15:ma15124061. [PMID: 35744118 PMCID: PMC9229888 DOI: 10.3390/ma15124061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/22/2022] [Accepted: 06/06/2022] [Indexed: 12/02/2022]
Abstract
This prospective single-arm clinical study aimed to radiographically and histomorphometrically evaluate the efficacy of the lateral approach for sinus floor elevation (LSFE) using biomimetic octacalcium phosphate (OCP) synthetic bone graft (Bontree®). LSFE using Bontree® was performed on 10 patients (15 implant placement sites) willing to undergo implant surgery, followed by implant placements after 6 months of the healing period. The vertical bone height (VBH) and Hounsfield unit (HU) values at each implant placement site were evaluated radiographically using cone-beam computed tomography at baseline immediately after surgery (T1) and 6 months after surgery (T2). A histomorphometric evaluation of the bone core biopsy specimen was also performed. The mean VBH and HU changes at all sites included a decrease by 0.91 mm and a statistically significant increase by 431.86, respectively, from T1 to T2. The mean ratio of the newly formed bone (23.34% ± 10.63%) was greater than that of the residual bone graft (19.09% ± 8.74%), indicating that Bontree® is effective for new bone formation. This pilot study suggests that Bontree® is a promising bone substitute for LSFE.
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Affiliation(s)
- Seok-Jun Kim
- Department of Biomedical Science, College of Natural Sciences, Chosun University, Gwangju 61452, Korea; (S.-J.K.); (W.K.)
| | - Joo-Seong Kim
- Department of Biomedical Engineering, Yeungnam University, Daegu 42415, Korea;
| | - Woong Kim
- Department of Biomedical Science, College of Natural Sciences, Chosun University, Gwangju 61452, Korea; (S.-J.K.); (W.K.)
| | - Suk-Young Kim
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Korea;
| | - Won-Pyo Lee
- Department of Periodontology, School of Dentistry, Chosun University, Gwangju 61452, Korea
- Correspondence: ; Tel.: +82-62-220-3850
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Yang Z, Xue J, Li T, Zhai D, Yu X, Huan Z, Wu C. 3D printing of sponge spicules-inspired flexible bioceramic-based scaffolds. Biofabrication 2022; 14. [PMID: 35417888 DOI: 10.1088/1758-5090/ac66ff] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 04/13/2022] [Indexed: 11/12/2022]
Abstract
Bioceramics are widely used in bone tissue repair and regeneration due to their desirable biocompatibility and bioactivity. However, the brittleness of bioceramics results in difficulty of surgical operation, which greatly limits their clinical applications. The spicules of the marine sponge Euplectella aspergillum (Ea) possess high flexibility and fracture toughness resulting from concentric layered silica glued by a thin organic layer. Inspired by the unique properties of sponge spicules, flexible bioceramic-based scaffolds with spicule-like concentric layered biomimetic microstructures were constructed by combining two-dimensional (2D) bioceramics and 3D printing. 2D bioceramics could be assembled and aligned by modulating the shear force field in the direct ink writing (DIW) of 3D printing. The prepared spicules-inspired flexible bioceramic-based (SFB) scaffolds differentiated themselves from traditional 3D-printed irregular particles-based bioceramic-based scaffolds as they could be adaptably compressed, cut, folded, rolled and twisted without the occurrence of fracture, significantly breaking through the bottleneck of inherent brittleness of traditional bioceramic scaffolds. In addition, SFB scaffolds showed significantly enhanced in vitro and in vivo bone-forming bioactivity as compared to conventional β-tricalcium phosphate (β-TCP) scaffolds, suggesting that SFB scaffolds combined both of excellent mechanical and bioactive characteristics, which is believed to greatly promote the bioceramic science and their clinical applications.
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Affiliation(s)
- Zhibo Yang
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Jianmin Xue
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Tian Li
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Dong Zhai
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Xiaopeng Yu
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Zhiguang Huan
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Chengtie Wu
- Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Changning District, 200050, CHINA
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