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Jia K, You J, Zhu Y, Li M, Chen S, Ren S, Chen S, Zhang J, Wang H, Zhou Y. Platelet-rich fibrin as an autologous biomaterial for bone regeneration: mechanisms, applications, optimization. Front Bioeng Biotechnol 2024; 12:1286035. [PMID: 38689760 PMCID: PMC11058865 DOI: 10.3389/fbioe.2024.1286035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 03/22/2024] [Indexed: 05/02/2024] Open
Abstract
Platelet-rich fibrin, a classical autologous-derived bioactive material, consists of a fibrin scaffold and its internal loading of growth factors, platelets, and leukocytes, with the gradual degradation of the fibrin scaffold and the slow release of physiological doses of growth factors. PRF promotes vascular regeneration, promotes the proliferation and migration of osteoblast-related cells such as mesenchymal cells, osteoblasts, and osteoclasts while having certain immunomodulatory and anti-bacterial effects. PRF has excellent osteogenic potential and has been widely used in the field of bone tissue engineering and dentistry. However, there are still some limitations of PRF, and the improvement of its biological properties is one of the most important issues to be solved. Therefore, it is often combined with bone tissue engineering scaffolds to enhance its mechanical properties and delay its degradation. In this paper, we present a systematic review of the development of platelet-rich derivatives, the structure and biological properties of PRF, osteogenic mechanisms, applications, and optimization to broaden their clinical applications and provide guidance for their clinical translation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yanmin Zhou
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
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2
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Horváth A, Windisch P, Palkovics D, Li X. Novel Technique to Reconstruct Peri-Implant Keratinised Mucosa Width Using Xenogeneic Dermal Matrix. Clinical Case Series. Dent J (Basel) 2024; 12:43. [PMID: 38534267 DOI: 10.3390/dj12030043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 03/28/2024] Open
Abstract
Reconstruction of sufficient buccal peri-implant keratinised mucosa width (PIKM-W) is reported to reduce the symptoms of peri-implantitis. In order to reduce the drawbacks of autogenous graft harvesting, we investigated a novel porcine dermal matrix (XDM, mucoderm®) using a modified surgical technique for augmentation of PIKM-W. Twenty-four patients were recruited with insufficient (<2 mm) PIKM-W. After split thickness flap preparation, the XDM was trimmed, rehydrated and tightly attached to the recipient periosteal bed using modified internal/external horizontal periosteal mattress sutures via secondary wound healing. Change of the PIKM-W and dimension of the graft remodelling were evaluated at 6 and 12 months postoperatively. The mean PIKM-W changed from 0.42 ± 0.47 to 3.17 ± 1.21 mm at 6 M and to 2.36 ± 1.34 mm at 12 M in the maxilla and from 0.29 ± 0.45 mm to 1.58 ± 1.44 mm at 6 M and to 1.08 ± 1.07 mm at 12 M in the mandible. Graft dimensions decreased by 67.7 ± 11.8% and 81.6 ± 16.6% at 6 M, and continued to 75.9 ± 13.9% and 87.4 ± 12.3% at 12 M, in the maxilla and mandible, respectively. Clinical parameters showed statistically significant intra- and intergroup differences between the baseline and 6 and 12 months (p < 0.05). The present technique using the XDM was safe and successfully reconstructed PIKM-W in both arches. The XDM alone seems to be a suitable alternative to autograft for PIKM-W augmentation in the maxilla.
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Affiliation(s)
- Attila Horváth
- Department of Periodontology, Semmelweis University, 1088 Budapest, Hungary
- Evident Pro Private Practice, 1118 Budapest, Hungary
| | - Péter Windisch
- Department of Periodontology, Semmelweis University, 1088 Budapest, Hungary
| | - Dániel Palkovics
- Department of Periodontology, Semmelweis University, 1088 Budapest, Hungary
| | - Xinda Li
- Department of Periodontology, Semmelweis University, 1088 Budapest, Hungary
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3
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Jung J, Kwon YD, Park JS. EMD-liquid contributes to tissue thickness gain in soft tissue augmentation using a collagen matrix. Clin Oral Investig 2023; 27:5569-5576. [PMID: 37491613 DOI: 10.1007/s00784-023-05176-y] [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: 05/17/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023]
Abstract
OBJECTIVES To investigate the function of enamel matrix derivative (EMD)-liquid compared to EMD-gel (original Emdogain® with polyglycolic acid-carrier) in inducing soft tissue regeneration using a rat dorsal model. MATERIAL AND METHODS Four subcutaneous pouches were created through dorsal skin incisions in 18 female Wistar rats and randomly allocated to the following groups: (1) sterile saline + non-crosslinked collagen matrix (CM), (2) EMD-gel + CM, and (3) EMD-liquid + CM. After 2 and 4 weeks of healing, the specimens were harvested and stained with Goldner's trichrome, hematoxylin and eosin, and were immunohistochemically stained with an anti-CD31 antibody. RESULTS The EMD-liquid group showed the thickest connective tissue compared to the other groups, with statistical significance both at 2 (p < 0.001) and 4 weeks (p = 0.011 and 0.023, respectively). The number of multinucleated giant cells was not significantly different among the groups for both periods. Moreover, there was a tendency to have more blood vessels over a longer period, and the highest number of blood vessels was observed in the EMD-liquid group at 4 weeks (p = 0.009 and 0036, respectively). CONCLUSION EMD-liquid-treated CM is advantageous compared to using CM alone or EMD-gel-treated CM, owing to the histomorphometric results that show significantly increased soft tissue thickness and number of blood vessels when EMD-liquid was pre-primed to CM. CLINICAL RELEVANCE EMD with a liquid carrier may be an appropriate biologic supplement to provide cell-inducing properties to the CM scaffold and is clinically more beneficial for phenotype modification therapy than CM only and EMD-gel-treated CM.
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Affiliation(s)
- Junho Jung
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, 02447, Seoul, Republic of Korea.
| | - Yong-Dae Kwon
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, 02447, Seoul, Republic of Korea
| | - Jung Soo Park
- Department of Periodontology, Korea University Anam Hospital, Seoul, Republic of Korea.
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Biofunctionalization of Xenogeneic Collagen Membranes with Autologous Platelet Concentrate-Influence on Rehydration Protocol and Angiogenesis. Biomedicines 2022; 10:biomedicines10030706. [PMID: 35327506 PMCID: PMC8945896 DOI: 10.3390/biomedicines10030706] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/05/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
Background: The aim of this study was to analyze possible interactions of different xenogeneic collagen membranes (CM) and platelet-rich fibrin (PRF). PH values were evaluated in the CM rehydration process with PRF, and their influence on angiogenesis was analyzed in vivo. Materials and Methods: Porcine (Bio-Gide®, Geistlich)- and bovine-derived collagen membranes (Symbios®, Dentsply Sirona) were biofunctionalized with PRF by plotting process. PRF in comparison to blood, saline and a puffer pH7 solution was analysed for pH-value changes in CM rehydration process in vitro. The yolk sac membrane (YSM) model was used to investigate pro-angiogenic effects of the combination of PRF and the respective CM in comparison to native pendant by vessel in-growth and branching points after 24, 48 and 72 h evaluated light-microscopically and by immunohistochemical staining (CD105, αSMA) in vivo. Results: Significantly higher pH values were found at all points in time in PRF alone and its combined variants with Bio-Gide® and Symbios® compared with pure native saline solution and pH 7 solution, as well as saline with Symbios® and Bio-Gide® (each p < 0.01). In the YSM, vessel number and branching points showed no significant differences at 24 and 48 h between all groups (each p > 0.05). For PRF alone, a significantly increased vessel number and branching points between 24 and 48 h (each p < 0.05) and between 24 and 72 h (each p < 0.05) was shown. After 72 h, CM in combination with PRF induced a statistically significant addition to vessels and branching points in comparison with native YSM (p < 0.01) but not vs. its native pendants (p > 0.05). Summary: PRF represents a promising alternative for CM rehydration to enhance CM vascularization.
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Guarnieri R, Reda R, Di Nardo D, Miccoli G, Zanza A, Testarelli L. In Vitro Direct and Indirect Cytotoxicity Comparative Analysis of One Pre-Hydrated versus One Dried Acellular Porcine Dermal Matrix. MATERIALS 2022; 15:ma15051937. [PMID: 35269168 PMCID: PMC8911924 DOI: 10.3390/ma15051937] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/29/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023]
Abstract
Aim: The aim of the present study was to compare the direct and indirect cytotoxicity of a porcine dried acellular dermal matrix (PDADM) versus a porcine hydrated acellular dermal matrix (PHADM) in vitro. Both are used for periodontal and peri-implant soft tissue regeneration. Materials and methods: Two standard direct cytotoxicity tests—namely, the Trypan exclusion method (TEM) and the reagent WST-1 test (4-3-[4-iodophenyl]-2-[4-nitrophenyl]-2H-[5-tetrazolio]-1,3-benzol-desulphonated)—were performed using human primary mesenchymal stem cells (HPMSCs) seeded directly onto a PDADM and PHADM after seven days. Two standard indirect cytotoxicity tests—namely, lactate dehydrogenase (LTT) and MTT (3-[4,5-dimethyl-2-thiazolyl]-2,5-diphenyl-2H-tetrazoliumbromide)—were performed using HPMSCs cultivated in eluates from the matrices incubated for 0.16 h (10 min), 1 h, and 24 h in a serum-free cell culture medium. Results: The WST and the TEM tests revealed significantly lower direct cytotoxicity values of HPMSCs on the PHADM compared with the PDADM. The indirect cytotoxicity levels were low for both the PHADM and PDADM, peaking in short-term eluates and decreasing with longer incubation times. However, they were lower for the PHADM with a statistically significant difference (p < 0.005). Conclusions: The results of the current study demonstrated a different biologic behavior between the PHADM and the PDADM, with the hydrated form showing a lower direct and indirect cytotoxicity.
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Affiliation(s)
- Renzo Guarnieri
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
- Private Periodontal Implant Practice, 31100 Treviso, Italy
| | - Rodolfo Reda
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
| | - Dario Di Nardo
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
- Correspondence:
| | - Gabriele Miccoli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
| | - Alessio Zanza
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
| | - Luca Testarelli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (R.R.); (G.M.); (A.Z.); (L.T.)
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6
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Fraser D, Caton J, Benoit DSW. Periodontal Wound Healing and Regeneration: Insights for Engineering New Therapeutic Approaches. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.815810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Periodontitis is a widespread inflammatory disease that leads to loss of the tooth supporting periodontal tissues. The few therapies available to regenerate periodontal tissues have high costs and inherent limitations, inspiring the development of new approaches. Studies have shown that periodontal tissues have an inherent capacity for regeneration, driven by multipotent cells residing in the periodontal ligament (PDL). The purpose of this review is to describe the current understanding of the mechanisms driving periodontal wound healing and regeneration that can inform the development of new treatment approaches. The biologic basis underlying established therapies such as guided tissue regeneration (GTR) and growth factor delivery are reviewed, along with examples of biomaterials that have been engineered to improve the effectiveness of these approaches. Emerging therapies such as those targeting Wnt signaling, periodontal cell delivery or recruitment, and tissue engineered scaffolds are described in the context of periodontal wound healing, using key in vivo studies to illustrate the impact these approaches can have on the formation of new cementum, alveolar bone, and PDL. Finally, design principles for engineering new therapies are suggested which build on current knowledge of periodontal wound healing and regeneration.
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Mordini L, Sun N, Chang N, De Guzman JP, Generali L, Consolo U. Peri-Implantitis Regenerative Therapy: A Review. BIOLOGY 2021; 10:biology10080773. [PMID: 34440005 PMCID: PMC8389675 DOI: 10.3390/biology10080773] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary Regenerative therapies are one of the options to treat peri-implantitis diseases that cause peri-implant bone loss. This review reports classic and current literature to describe the available knowledge on regenerative peri-implant techniques. Abstract The surgical techniques available to clinicians to treat peri-implant diseases can be divided into resective and regenerative. Peri-implant diseases are inflammatory conditions affecting the soft and hard tissues around dental implants. Despite the large number of investigations aimed at identifying the best approach to treat these conditions, there is still no universally recognized protocol to solve these complications successfully and predictably. This review will focus on the regenerative treatment of peri-implant osseous defects in order to provide some evidence that can aid clinicians in the approach to peri-implant disease treatment.
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Affiliation(s)
- Lorenzo Mordini
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA; (N.S.); (N.C.); (J.-P.D.G.)
- Correspondence:
| | - Ningyuan Sun
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA; (N.S.); (N.C.); (J.-P.D.G.)
| | - Naiwen Chang
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA; (N.S.); (N.C.); (J.-P.D.G.)
| | - John-Paul De Guzman
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA; (N.S.); (N.C.); (J.-P.D.G.)
| | - Luigi Generali
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41124 Modena, Italy; (L.G.); (U.C.)
| | - Ugo Consolo
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41124 Modena, Italy; (L.G.); (U.C.)
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8
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Lin Z, Nica C, Sculean A, Asparuhova MB. Positive Effects of Three-Dimensional Collagen-Based Matrices on the Behavior of Osteoprogenitors. Front Bioeng Biotechnol 2021; 9:708830. [PMID: 34368101 PMCID: PMC8334008 DOI: 10.3389/fbioe.2021.708830] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/05/2021] [Indexed: 12/22/2022] Open
Abstract
Recent research has demonstrated that reinforced three-dimensional (3D) collagen matrices can provide a stable scaffold for restoring the lost volume of a deficient alveolar bone. In the present study, we aimed to comparatively investigate the migratory, adhesive, proliferative, and differentiation potential of mesenchymal stromal ST2 and pre-osteoblastic MC3T3-E1 cells in response to four 3D collagen-based matrices. Dried acellular dermal matrix (DADM), hydrated acellular dermal matrix (HADM), non-crosslinked collagen matrix (NCM), and crosslinked collagen matrix (CCM) did all enhance the motility of the osteoprogenitor cells. Compared to DADM and NCM, HADM and CCM triggered stronger migratory response. While cells grown on DADM and NCM demonstrated proliferative rates comparable to control cells grown in the absence of a biomaterial, cells grown on HADM and CCM proliferated significantly faster. The pro-proliferative effects of the two matrices were supported by upregulated expression of genes regulating cell division. Increased expression of genes encoding the adhesive molecules fibronectin, vinculin, CD44 antigen, and the intracellular adhesive molecule-1 was detected in cells grown on each of the scaffolds, suggesting excellent adhesive properties of the investigated biomaterials. In contrast to genes encoding the bone matrix proteins collagen type I (Col1a1) and osteopontin (Spp1) induced by all matrices, the expression of the osteogenic differentiation markers Runx2, Alpl, Dlx5, Ibsp, Bglap2, and Phex was significantly increased in cells grown on HADM and CCM only. Short/clinically relevant pre-coating of the 3D biomaterials with enamel matrix derivative (EMD) or recombinant bone morphogenetic protein-2 (rBMP-2) significantly boosted the osteogenic differentiation of both osteoprogenitor lines on all matrices, including DADM and NCM, indicating that EMD and BMP-2 retained their biological activity after being released from the matrices. Whereas EMD triggered the expression of all osteogenesis-related genes, rBMP-2 upregulated early, intermediate, and late osteogenic differentiation markers except for Col1a1 and Spp1. Altogether, our results support favorable influence of HADM and CCM on the recruitment, growth, and osteogenic differentiation of the osteoprogenitor cell types. Furthermore, our data strongly support the biofunctionalization of the collagen-based matrices with EMD or rBMP-2 as a potential treatment modality for bone defects in the clinical practice.
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Affiliation(s)
- Zhikai Lin
- Laboratory of Oral Cell Biology, Dental Research Center, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Periodontology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Cristina Nica
- Laboratory of Oral Cell Biology, Dental Research Center, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Maria B Asparuhova
- Laboratory of Oral Cell Biology, Dental Research Center, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Rahmati M, Frank MJ, Walter SM, Monjo MC, Satué M, Reseland JE, Lyngstadaas SP, Haugen HJ. Osteoimmunomodulatory Effects of Enamel Matrix Derivate and Strontium Coating Layers: A Short- and Long-Term In Vivo Study. ACS APPLIED BIO MATERIALS 2020; 3:5169-5181. [PMID: 32954227 PMCID: PMC7493216 DOI: 10.1021/acsabm.0c00608] [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: 05/22/2020] [Accepted: 07/23/2020] [Indexed: 12/22/2022]
Abstract
Over the past few years, surface modification of implant surfaces has gained substantial attention as a promising solution to avoid the failure of biomaterials after implantation. Although researchers suggest several strategies for surface functionalization of titanium-based implants, only a few studies have compared the osteoimmunomodulatory effects of ionic nanostructures and biofunctionalization in the same biological model. Enamel matrix derivate (EMD) and strontium are both known for their positive influences on bone cell responses. In this study, we functionalized the titanium-zirconium implant surface with EMD and strontium using an electrochemical cathodic polarization method. Afterward, we evaluated the osteoimmunomodulatory effects of EMD or strontium coated titanium-zirconium implants in the tibia of eight Gray Bastard Chinchilla rabbits. We performed 2 and 3D micro-CT, wound fluid, histologic, and histomorphometric analyses on bone tissues after 4- and 8-weeks of implantation. Although the results could indicate some differences between groups regarding the bone quality, there was no difference in bone amount or volume. EMD stimulated higher ALP activity and lower cytotoxicity in wound fluid, as well as a lower expression of inflammatory markers after 8 weeks indicating its osteoimmunomodulatory effects after implantation. Overall, the results suggested that ionic nanostructure modification and biofunctionalization might be useful in regulating the immune responses to implants.
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Affiliation(s)
- Maryam Rahmati
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
| | - Matthias Johannes Frank
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
- Institute
of Medical and Polymer Engineering, Chair of Medical Engineering, Technische Universität München, Boltzmannstrasse 15, 85748 Garching, Germany
| | - Sebastian Martin Walter
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
- Institute
of Medical and Polymer Engineering, Chair of Medical Engineering, Technische Universität München, Boltzmannstrasse 15, 85748 Garching, Germany
| | - Marta Cabrer Monjo
- Department
of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS), University of Balearic
Islands, ES-07122 Palma, Spain
- Balearic
Islands Health Institute (IdISBa), ES-07010 Palma, Spain
| | - Maria Satué
- Department
of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS), University of Balearic
Islands, ES-07122 Palma, Spain
- Balearic
Islands Health Institute (IdISBa), ES-07010 Palma, Spain
- Department
of Biomedical Sciences, University of Veterinary
Medicine, 1210 Vienna, Austria
| | - Janne Elin Reseland
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
| | - Ståle Petter Lyngstadaas
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
| | - Håvard Jostein Haugen
- Department
of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109
Blindern, NO-0317 Oslo, Norway
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10
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Dau M, Volprich L, Grambow E, Vollmar B, Frerich B, Al-Nawas B, Kämmerer PW. Collagen membranes of dermal and pericardial origin-In vivo evolvement of vascularization over time. J Biomed Mater Res A 2020; 108:2368-2378. [PMID: 32363796 DOI: 10.1002/jbm.a.36989] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/29/2020] [Accepted: 04/04/2020] [Indexed: 02/06/2023]
Abstract
Aim of the study was to compare the evolvement of vascularization over time of collagen membranes (CMs) of dermal and pericardial origin in an in vivo animal study. Twenty-eight mice underwent implantation of three commercially available CM derived from porcine dermis (homogenous structure: CM1 (Control 1) and bilayer structure: CM2 [Control 2]), from porcine pericardium (CM3; Test 1) as well as CM3 sprayed with silica-enhanced nanostructured hydroxyapatite (CM4, Test 2). After 3, 6, 9, and 12 days, intravital fluorescence microscopy was conducted for determination of capillary diameter, density, flow, and length. At Day 12, samples were examined immunohistologically for expression of fibroblast growth factor receptor 4 (FGFR4), CD11b, CD68, αSMA, and CD34. In all CM, intravital fluorescence microscopy over time showed increasing values for all parameters with the highest levels in CM4 and the lowest values in CM1. Significant lower amounts of FGFR4, CD11b, and CD68 were detected in CM4 when compared to CM2 (p < .05). In contrast to CM3, lower values of αSMA and higher numbers of CD34 positive-marked vessels were observed in CM4 (p < .05). In conclusion, dermal bilayer as well as pericardial CM seem to have a higher vascularization rate than dermal homogenous CM. Additional coating of pericardial CM with a silica-enhanced hydroxyapatite increases the speed of vascularization as well as biological remodeling processes.
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Affiliation(s)
- Michael Dau
- Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Lisann Volprich
- Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Eberhard Grambow
- Department for General-, Visceral-, Vascular- and Transplantation Surgery, University Medical Center Rostock, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, University Medical Center Rostock, Rostock, Germany
| | - Bernhard Frerich
- Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Bilal Al-Nawas
- Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Mainz, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Rostock, Rostock, Germany.,Department of Oral, Maxillofacial Plastic Surgery, University Medical Center Mainz, Mainz, Germany
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11
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Pabst A, Ackermann M, Thiem D, Kämmerer P. Influence of Different Rehydration Protocols on Biomechanical Properties of Allogeneic Cortical Bone Plates: A Combined in-vitro/ in-vivo Study. J INVEST SURG 2020; 34:1158-1164. [PMID: 32441171 DOI: 10.1080/08941939.2020.1767735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: Allogeneic cortical bone plates (CP) are used for alveolar ridge augmentation. Since CP are freeze-dried and dehydrated during processing, the breaking strength (BS) and the flexibility (FX) are reduced, resulting in a relevant risk for plate fractures during insertion. The aim of this study was to evaluate the influence of rehydration time on the biomechanical properties (BS & FX) of CP in-vitro and in vivo.Material and Methods: 40 CP were randomly divided into four experimental groups. (A) untreated control (n = 10), rehydration for 10 (B), 30 (C) and 60 (D) minutes in 0.9% saline solution (n = 10 each). BS [Newton, N] and FX [mm] (force till fracture and distance of deflection to the breaking point) were analyzed. Besides, architectural features of all CP groups were visualized and examined by scanning electron microscopy (SEM). In addition, the frequency of CP fractures of rehydrated- vs. non-rehydrated CP was retrospectively analyzed in 6 patients.Results: Compared to the control group, significantly increased BS and FX were demonstrated after 10, 30 and 60 minutes of rehydration (p each ≤ 0.035). After a rehydration time of 10 minutes, no additional increase of BS and FX was seen when compared to30 and 60 minutes (p each = 1.0). SEM scans demonstrated that the CP fracture characteristics were influenced by the different rehydration protocols. The frequency of CP fractures was reduced in patients by CP rehydration.Conclusion: The biomechanical properties of CP can be significantly improved by 10 min of rehydration, resulting in an increased BS and FX, that might be clinically relevant.
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Affiliation(s)
- Andreas Pabst
- Department of Oral- and Maxillofacial Surgery, Federal Armed Forces Hospital, Koblenz, Germany
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center, Mainz, Germany
| | - Daniel Thiem
- Department of Oral- and Maxillofacial Surgery, University Medical Center, Mainz, Germany
| | - Peer Kämmerer
- Department of Oral- and Maxillofacial Surgery, University Medical Center, Mainz, Germany
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Biofunctionalization of porcine-derived collagen matrices with platelet rich fibrin: influence on angiogenesis in vitro and in vivo. Clin Oral Investig 2020; 24:3425-3436. [DOI: 10.1007/s00784-020-03213-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/15/2020] [Indexed: 02/07/2023]
Abstract
Abstract
Objectives
Porcine-derived collagen matrices (CM) can be used for oral tissue regeneration, but sufficient revascularization is crucial. The aim of this study was to analyze the influence of platelet-rich fibrin (PRF) on angiogenesis of different CM in vitro and in vivo.
Materials and methods
Three different CM (mucoderm, jason, collprotect) were combined with PRF in a plotting process. Growth factor release (VEGF, TGF-β) was measured in vitro via ELISA quantification after 1,4 and 7 days in comparison to PRF alone. In ovo yolk sac (YSM) and chorion allantois membrane (CAM) model, angiogenic potential were analyzed in vivo with light- and intravital fluorescence microscopy after 24 h, then verified with immunohistochemical staining for CD105 and αSMA.
Results
Highest growth factor release was seen after 24 h for all three activated membranes in comparison to the native CM (VEGF 24 h: each p < 0.05; TGF-β: each p < 0.001) and the PRF (no significant difference). All activated membranes revealed a significantly increased angiogenic potential in vivo after 24 h (vessels per mm2: each p < 0.05; branching points per mm2: each p < 0.01; vessel density: each p < 0.05) and with immunohistochemical staining for CD105 (each p < 0.01) and αSMA (each p < 0.05).
Conclusions
PRF improved the angiogenesis of CM in vitro and in vivo.
Clinical relevance
Bio-functionalization of CM with PRF could easily implemented in the clinical pathway and may lead to advanced soft tissue healing.
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Strauss FJ, Nasirzade J, Kargarpoor Z, Stähli A, Gruber R. Effect of platelet-rich fibrin on cell proliferation, migration, differentiation, inflammation, and osteoclastogenesis: a systematic review of in vitro studies. Clin Oral Investig 2019; 24:569-584. [PMID: 31879804 PMCID: PMC6988133 DOI: 10.1007/s00784-019-03156-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/13/2019] [Indexed: 12/15/2022]
Abstract
Objective To systematically assess the effects of platelet-rich fibrin (PRF) on in vitro cellular behavior. Methods A systematic electronic search using MEDLINE database was performed. In vitro studies using PRF were considered and articles published up to June 31, 2018 were screened. Eligible studies were selected based on the use of human PRF. Results In total, 1746 titles were identified with the search terms, from these 37 met the inclusion criteria and were chosen for data extraction. In addition, 16 new studies, mainly published in 2019, were also included in the analysis resulting in 53 studies. No meta-analysis could be performed due to the heterogeneity of study designs. Included studies show that PRF enhances proliferation, migration, adhesion, and osteogenic differentiation on a variety of cell types along with cell signaling activation. Furthermore, PRF reduces inflammation, suppresses osteoclastogenesis, and increases the expression of various growth factors in mesenchymal cells. Summary and conclusions Despite some notable differences of the studies, the overall findings suggest a positive effect of PRF on cell proliferation, migration, adhesion, differentiation, and inflammation pointing towards a therapeutic potential in regenerative dentistry. Clinical relevance PRF serves as a reservoir of bioactive molecules to support wound healing and bone regeneration. Although the cellular mechanisms by which PRF supports the clinical outcomes remain unclear, in vitro research provides possible explanations. This systematic review aims to provide an update of the existing research on how PRF affects basic physiological processes in vitro. The overall findings suggest that PRF induces cell proliferation, migration, adhesion, and differentiation along with possessing anti-inflammatory properties further supporting its therapeutic potential in wound healing and bone regeneration.
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Affiliation(s)
- Franz-Josef Strauss
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.,Department of Conservative Dentistry, School of Dentistry, Universidad de Chile, Av. Sergio Livingstone, 943, Santiago, Chile
| | - Jila Nasirzade
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Zahra Kargarpoor
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Alexandra Stähli
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.,Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
| | - Reinhard Gruber
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria. .,Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland. .,Austrian Cluster for Tissue Regeneration, Donaueschingenstrasse 13, 1200, Vienna, Austria.
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The Use of a Novel Porcine Derived Acellular Dermal Matrix (Mucoderm) in Peri-Implant Soft Tissue Augmentation: Preliminary Results of a Prospective Pilot Cohort Study. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6406051. [PMID: 30112412 PMCID: PMC6077540 DOI: 10.1155/2018/6406051] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/19/2018] [Accepted: 04/03/2018] [Indexed: 12/20/2022]
Abstract
Objective Over the years, several techniques have been proposed for soft tissue augmentation around dental implants in order to improve keratinized mucosa width (KMW). Recently, a porcine derived acellular dermal matrix (Mucoderm®) has been proposed as autogenous graft substitute in order to avoid palatal harvesting and obtain comparable results to connective tissue grafts, in terms of aesthetics and function. The aim of this study is to present the one-year follow-up results of this matrix in peri-implant soft tissue augmentation procedures. Material and Methods Twelve patients were enrolled in this pilot prospective study: a dental implant was placed in the upper premolar area and, at implant uncovering after eight weeks, the matrix was inserted. KMW gain was considered as primary outcome variable. Results After one month from matrix insertion, mean KMW was 7.86±3.22 mm (100%), with no statistically significant intragroup variations (p>0.05). No membrane exposures or wound healing complications occurred during postoperative phase and, after one year, mean KMW was 5.67±2.12 mm (72.13%). Conclusions The results of the present pilot study indicate that by placing a Mucoderm membrane during implant surgery the keratinized tissue width can be augmented, and the width remains stable for the assessment period of 12 months. Further studies with greater power and longer investigation period are needed to confirm the suggestion for clinical use. Clinical trial registration number is EudraCT number 2018-000147-16.
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