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Deng X, Yu C, Zhang X, Tang X, Guo Q, Fu M, Wang Y, Fang K, Wu T. A chitosan-coated PCL/nano-hydroxyapatite aerogel integrated with a nanofiber membrane for providing antibacterial activity and guiding bone regeneration. NANOSCALE 2024; 16:9861-9874. [PMID: 38712977 DOI: 10.1039/d4nr00563e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
A guided bone regeneration (GBR) membrane can act as a barrier to prevent the invasion and interference from foreign soft tissues, promoting infiltration and proliferation of osteoblasts in the bone defect area. Herein, a composite scaffold with dual functions of osteogenesis and antibacterial effects was prepared for GBR. A polycaprolactone (PCL)/nano-hydroxyapatite (n-HA) aerogel produced by electrospinning and freeze-drying techniques was fabricated as the loose layer of the scaffold, while a PCL nanofiber membrane was used as the dense layer. Chitosan (CS) solution served as a middle layer to provide mechanical support and antibacterial effects between the two layers. Morphological results showed that the loose layer had a porous structure with n-HA successfully dispersed in the aerogels, while the dense layer possessed a sufficiently dense structure. In vitro antibacterial experiments illustrated that the CS solution in the middle layer stabilized the scaffold structure and endowed the scaffold with good antibacterial properties. The cytocompatibility results indicated that both fibroblasts and osteoblasts exhibited superior cell activity on the dense and loose layers, respectively. In particular, the dense layer made of nanofibers could work as a barrier layer to inhibit the infiltration of fibroblasts into the loose layer. In vitro osteogenesis analysis suggested that the PCL/n-HA aerogel could enhance the bone induction ability of bone mesenchymal stem cells, which was confirmed by the increased expression of the alkaline phosphatase activity. The loose structure facilitated the infiltration and migration of bone mesenchymal stem cells for better osteogenesis. In summary, such a composite scaffold exhibited excellent osteogenic and antibacterial properties as well as the barrier effect, thus holding promising potential for use as GBR materials.
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Affiliation(s)
- Xinyuan Deng
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
| | - Chenghao Yu
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xiaopei Zhang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xunmeng Tang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
| | - Qingxia Guo
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Manfei Fu
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yuanfei Wang
- Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, China.
| | - Kuanjun Fang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- Laboratory for Manufacturing Low Carbon and Functionalized Textiles in the Universities of Shandong Province, Qingdao, State Key Laboratory for Biofibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Tong Wu
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
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Sun H, Luan J, Dong S. Hydrogels promote periodontal regeneration. Front Bioeng Biotechnol 2024; 12:1411494. [PMID: 38827033 PMCID: PMC11140061 DOI: 10.3389/fbioe.2024.1411494] [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: 04/03/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
Periodontal defects involve the damage and loss of periodontal tissue, primarily caused by periodontitis. This inflammatory disease, resulting from various factors, can lead to irreversible harm to the tissues supporting the teeth if not treated effectively, potentially resulting in tooth loss or loosening. Such outcomes significantly impact a patient's facial appearance and their ability to eat and speak. Current clinical treatments for periodontitis, including surgery, root planing, and various types of curettage, as well as local antibiotic injections, aim to mitigate symptoms and halt disease progression. However, these methods fall short of fully restoring the original structure and functionality of the affected tissue, due to the complex and deep structure of periodontal pockets and the intricate nature of the supporting tissue. To overcome these limitations, numerous biomaterials have been explored for periodontal tissue regeneration, with hydrogels being particularly noteworthy. Hydrogels are favored in research for their exceptional absorption capacity, biodegradability, and tunable mechanical properties. They have shown promise as barrier membranes, scaffolds, carriers for cell transplantation and drug delivery systems in periodontal regeneration therapy. The review concludes by discussing the ongoing challenges and future prospects for hydrogel applications in periodontal treatment.
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Affiliation(s)
- Huiying Sun
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Jiayi Luan
- Foshan Stomatology Hospital and School of Medicine, Foshan, Guangdong, China
| | - Shujun Dong
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
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Apaza Alccayhuaman KA, Heimel P, Tangl S, Lettner S, Kampleitner C, Panahipour L, Kuchler U, Gruber R. Human versus Rat PRF on Collagen Membranes: A Pilot Study of Mineralization in Rat Calvaria Defect Model. Bioengineering (Basel) 2024; 11:414. [PMID: 38790282 PMCID: PMC11117948 DOI: 10.3390/bioengineering11050414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/03/2024] [Accepted: 04/06/2024] [Indexed: 05/26/2024] Open
Abstract
Platelet-rich fibrin, the coagulated plasma fraction of blood, is commonly used to support natural healing in clinical applications. The rat calvaria defect is a standardized model to study bone regeneration. It remains, however, unclear if the rat calvaria defect is appropriate to investigate the impact of human PRF (Platelet-Rich Fibrin) on bone regeneration. To this end, we soaked Bio-Gide® collagen membranes in human or rat liquid concentrated PRF before placing them onto 5 mm calvarial defects in Sprague Dawley rats. Three weeks later, histology and micro-computed tomography (μCT) were performed. We observed that the collagen membranes soaked with rat PRF show the characteristic features of new bone and areas of mineralized collagen matrix, indicated by a median mineralized volume of 1.5 mm3 (range: 0.9; 5.3 mm3). Histology revealed new bone growing underneath the membrane and hybrid bone where collagen fibers are embedded in the new bone. Moreover, areas of passive mineralization were observed. The collagen membranes soaked with human PRF, however, were devoid of histological features of new bone formation in the center of the defect; only occasionally, new bone formed at the defect margins. Human PRF (h-PRF) caused a median bone volume of 0.9 mm3 (range: 0.3-3.3 mm3), which was significantly lower than what was observed with rat PRF (r-PRF), with a BV median of 1.2 mm3 (range: 0.3-5.9 mm3). Our findings indicate that the rat calvaria defect model is suitable for assessing the effects of rat PRF on bone formation, but caution is warranted when extrapolating conclusions regarding the efficacy of human PRF.
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Affiliation(s)
- Karol Ali Apaza Alccayhuaman
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (K.A.A.A.); (L.P.)
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (S.T.); (S.L.); (C.K.)
| | - Patrick Heimel
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (S.T.); (S.L.); (C.K.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (S.T.); (S.L.); (C.K.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Lettner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (S.T.); (S.L.); (C.K.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Carina Kampleitner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (S.T.); (S.L.); (C.K.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | - Layla Panahipour
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (K.A.A.A.); (L.P.)
| | - Ulrike Kuchler
- Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria;
| | - Reinhard Gruber
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (K.A.A.A.); (L.P.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
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Valamvanos TF, Dereka X, Katifelis H, Gazouli M, Lagopati N. Recent Advances in Scaffolds for Guided Bone Regeneration. Biomimetics (Basel) 2024; 9:153. [PMID: 38534838 DOI: 10.3390/biomimetics9030153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
The rehabilitation of alveolar bone defects of moderate to severe size is often challenging. Currently, the therapeutic approaches used include, among others, the guided bone regeneration technique combined with various bone grafts. Although these techniques are widely applied, several limitations and complications have been reported such as morbidity, suboptimal graft/membrane resorption rate, low structural integrity, and dimensional stability. Thus, the development of biomimetic scaffolds with tailor-made characteristics that can modulate cell and tissue interaction may be a promising tool. This article presents a critical consideration in scaffold's design and development while also providing information on various fabrication methods of these nanosystems. Their utilization as delivery systems will also be mentioned.
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Affiliation(s)
- Theodoros-Filippos Valamvanos
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Xanthippi Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Hector Katifelis
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Maria Gazouli
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- School of Science and Technology, Hellenic Open University, 26335 Patra, Greece
| | - Nefeli Lagopati
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Greece Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
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Xue S, Tang N, Zhou C, Fang S, Haick H, Sun J, Wu X. Anti-Wound Dehiscence and Antibacterial Dressing with Highly Efficient Self-Healing Feature for Guided Bone Regeneration Wound Closure. Adv Healthc Mater 2024:e2304128. [PMID: 38411376 DOI: 10.1002/adhm.202304128] [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: 11/23/2023] [Revised: 02/15/2024] [Indexed: 02/28/2024]
Abstract
Guided bone regeneration (GBR) is a well-established technique for preserving and enhancing alveolar ridge structures. Success in GBR relies on fulfilling the Primary wound closure, Angiogenesis, Space maintenance, and Stability (PASS) principles. Conventional methods, involving titanium meshes and sutures, have drawbacks, including the need for secondary removal and customization challenges. To address these issues, an innovative multifunctional GBR dressing (MGD) based on self-healing elastomer (PUIDS) is introduced. MGD provides sutureless wound closure, prevents food particle accumulation, and maintains a stable environment for bone growth. It offers biocompatibility, bactericidal properties, and effectiveness in an oral GBR model. In summary, MGD provides a reliable, stable osteogenic environment for GBR, aligning with PASS principles and promoting superior post-surgery bone regeneration.
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Affiliation(s)
- Shenghao Xue
- Department of Prothodontics, Shanghai Stomatological Hospital & School of Stomatology, Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, P. R. China
| | - Ning Tang
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Cheng Zhou
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shuobo Fang
- Department of Prothodontics, Shanghai Stomatological Hospital & School of Stomatology, Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, P. R. China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Jiao Sun
- Department of Dental Materials, Shanghai NinthPeople's Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, P. R. China
| | - Xueying Wu
- Department of Prothodontics, Shanghai Stomatological Hospital & School of Stomatology, Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, P. R. China
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Beitlitum I, Rayyan F, Pokhojaev A, Tal H, Sarig R. A novel micro-CT analysis for evaluating the regenerative potential of bone augmentation xenografts in rabbit calvarias. Sci Rep 2024; 14:4321. [PMID: 38383533 PMCID: PMC10881464 DOI: 10.1038/s41598-024-54313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 02/11/2024] [Indexed: 02/23/2024] Open
Abstract
Guided Bone Regeneration is a common procedure, yet, as new grafting materials are being introduced into the market, a reliable evaluation method is required. Critical size defect in animal models provides an accurate simulation, followed by histological sections to evaluate the new bone formation. However, histology is destructive, two-dimensional and technique-sensitive. In this study we developed a novel volumetric Micro-CT analysis to quantify new bone formation characteristics. Eight adult female New Zealand white rabbits were subjected to calvarial critical-size defects. Four 8 mm in diameter circular defects were preformed in each animal, to allow random allocation of four treatment modalities. All calvarias were scanned using Micro-CT. Each defect was segmented into four equal parts: pristine bone, outer, middle, and inner. Amira software (v. 6.3, www.fei.com ) was used to calculate the new bone volume in each region and compare it to that of the pristine bone. All grafting materials demonstrated that new bone formation decreased as it moved inward. Only the inner region differed across grafting materials (p = 0.001). The new Micro-CT analysis allowed us to divide each defect into 3D regions providing better understanding of the bone formation process. Amongst the various advantages of the Micro-CT, it enables us to quantify the graft materials and the newly formed bone independently, and to describe the defect morphology in 3D (bi- vs. uni-cortical defects). Providing an insight into the inner region of the defect can better predict the regenerative potential of the bone augmentation graft material. Therefore, the suggested Micro-CT analysis is beneficial for further developing of clinical approaches.
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Affiliation(s)
- Ilan Beitlitum
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Fatma Rayyan
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Ariel Pokhojaev
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Haim Tal
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Rachel Sarig
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel.
- Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Faculty of Medicine, Tel-Aviv University, Tel Aviv, 6997801, Israel.
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Epicoco L, Pellegrino R, Madaghiele M, Friuli M, Giannotti L, Di Chiara Stanca B, Palermo A, Siculella L, Savkovic V, Demitri C, Nitti P. Recent Advances in Functionalized Electrospun Membranes for Periodontal Regeneration. Pharmaceutics 2023; 15:2725. [PMID: 38140066 PMCID: PMC10747510 DOI: 10.3390/pharmaceutics15122725] [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: 11/06/2023] [Revised: 11/26/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
Periodontitis is a global, multifaceted, chronic inflammatory disease caused by bacterial microorganisms and an exaggerated host immune response that not only leads to the destruction of the periodontal apparatus but may also aggravate or promote the development of other systemic diseases. The periodontium is composed of four different tissues (alveolar bone, cementum, gingiva, and periodontal ligament) and various non-surgical and surgical therapies have been used to restore its normal function. However, due to the etiology of the disease and the heterogeneous nature of the periodontium components, complete regeneration is still a challenge. In this context, guided tissue/bone regeneration strategies in the field of tissue engineering and regenerative medicine have gained more and more interest, having as a goal the complete restoration of the periodontium and its functions. In particular, the use of electrospun nanofibrous scaffolds has emerged as an effective strategy to achieve this goal due to their ability to mimic the extracellular matrix and simultaneously exert antimicrobial, anti-inflammatory and regenerative activities. This review provides an overview of periodontal regeneration using electrospun membranes, highlighting the use of these nanofibrous scaffolds as delivery systems for bioactive molecules and drugs and their functionalization to promote periodontal regeneration.
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Affiliation(s)
- Luana Epicoco
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
- Institute of Medical Physics and Biophysics, University of Leipzig, 04103 Leipzig, Germany
| | - Rebecca Pellegrino
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Marta Madaghiele
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Marco Friuli
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Laura Giannotti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Benedetta Di Chiara Stanca
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Andrea Palermo
- Implant Dentistry College of Medicine and Dentistry, Birmingham B4 6BN, UK;
| | - Luisa Siculella
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Vuk Savkovic
- Clinic and Polyclinic for Oral and Maxillofacial Plastic Surgery, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Paola Nitti
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
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