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https://www.readbyqxmd.com/read/29777616/regenerative-endodontics-a-review
#1
REVIEW
S G Kim, M Malek, A Sigurdsson, L M Lin, B Kahler
The European Society of Endodontology and the American Association for Endodontists have released position statements and clinical considerations for regenerative endodontics. There is increasing literature on this field since the initial reports of Iwaya et al. (2001) and Banchs & Trope (2004). Endogenous stem cells from an induced periapical bleeding and scaffolds using blood clot, platelet rich plasma or platelet rich fibrin have been utilized in regenerative endodontics. This approach has been described as a 'paradigm shift" and considered the first treatment option for immature teeth with pulp necrosis...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29772691/periodontal-tissues-maxillary-jaw-bone-and-tooth-regeneration-approaches-from-animal-models-analyses-to-clinical-applications
#2
REVIEW
Fareeha Batool, Marion Strub, Catherine Petit, Isaac Maximiliano Bugueno, Fabien Bornert, François Clauss, Olivier Huck, Sabine Kuchler-Bopp, Nadia Benkirane-Jessel
This review encompasses different pre-clinical bioengineering approaches for periodontal tissues, maxillary jaw bone, and the entire tooth. Moreover, it sheds light on their potential clinical therapeutic applications in the field of regenerative medicine. Herein, the electrospinning method for the synthesis of polycaprolactone (PCL) membranes, that are capable of mimicking the extracellular matrix (ECM), has been described. Furthermore, their functionalization with cyclosporine A (CsA), bone morphogenetic protein-2 (BMP-2), or anti-inflammatory drugs' nanoreservoirs has been demonstrated to induce a localized and targeted action of these molecules after implantation in the maxillary jaw bone...
May 16, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29769418/application-of-stem-cells-in-denstistry-for-bone-regeneration
#3
R Brozek, M Kurpisz, R Koczorowski
Stem cells constitute a non-specialised cell pool able for proliferation, self-renewal and differentiation into progeny constantly replacing used up tissue and/or organ fragments. They have been observed to be present in many tissue reservoirs, including stomatognathic system. Oral cavity seems to be a particularly attractive stem cells' source as these cells are richly present and easily accessible in dental and periodontal tissues and they can be used for therapeutic purposes. Their application is also morally and ethically non-controversial...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29763345/tissue-engineering-of-necrotic-dental-pulp-of-immature-teeth-with-apical-periodontitis-in-dogs-radiographic-and-histological-evaluation
#4
Eman A El Ashiry, Najlaa M Alamoudi, Mahmoud K El Ashiry, Hagar A Bastawy, Douaa A El Derwi, Hazem M Atta
AIM: To evaluate tissue engineering technology to regenerate pulp-dentin like tissues in pulp canals of immature necrotic permanent teeth with apical periodontitis in dogs. STUDY DESIGN: The study was performed on 36 teeth in 12 dogs. The experiment was carried out using split mouth design. In each dog 3 teeth were selected for implementing the study procedure. Apical periodontitis was induced in Group A and B teeth. Group (A): immature upper left 2nd permanent incisors that were transplanted with a construct of autologous dental pulp stem cells with growth factors seeded in a chitosn hydrogel scaffold...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29751776/negative-effects-of-a-high-tumour-necrosis-factor-%C3%AE-concentration-on-human-gingival-mesenchymal-stem-cell-trophism-the-use-of-natural-compounds-as-modulatory-agents
#5
Chiara Giacomelli, Letizia Natali, Marco Nisi, Marinella De Leo, Simona Daniele, Barbara Costa, Filippo Graziani, Mario Gabriele, Alessandra Braca, M Letizia Trincavelli, Claudia Martini
BACKGROUND: Adult mesenchymal stem cells (MSCs) play a crucial role in the maintenance of tissue homeostasis and in regenerative processes. Among the different MSC types, the gingiva-derived mesenchymal stem cells (GMSCs) have arisen as a promising tool to promote the repair of damaged tissues secreting trophic mediators that affect different types of cells involved in regenerative processes. Tumour necrosis factor (TNF)-α is one of the key mediators of inflammation that could affect tissue regenerative processes and modify the MSC properties in in-vitro applications...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29713167/characterization-and-evaluation-of-graphene-oxide-scaffold-for-periodontal-wound-healing-of-class-ii-furcation-defects-in-dog
#6
Kohei Kawamoto, Hirofumi Miyaji, Erika Nishida, Saori Miyata, Akihito Kato, Akito Tateyama, Tomokazu Furihata, Kanako Shitomi, Toshihiko Iwanaga, Tsutomu Sugaya
Introduction: The 3-dimensional scaffold plays a key role in volume and quality of repair tissue in periodontal tissue engineering therapy. We fabricated a novel 3D collagen scaffold containing carbon-based 2-dimensional layered material, named graphene oxide (GO). The aim of this study was to characterize and assess GO scaffold for periodontal tissue healing of class II furcation defects in dog. Materials and methods: GO scaffolds were prepared by coating the surface of a 3D collagen sponge scaffold with GO dispersion...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29691817/bioceramics-for-osteochondral-tissue-engineering-and-regeneration
#7
Sandra Pina, Rita Rebelo, Vitor Manuel Correlo, J Miguel Oliveira, Rui L Reis
Considerable advances in tissue engineering and regeneration have been accomplished over the last decade. Bioceramics have been developed to repair, reconstruct, and substitute diseased parts of the body and to promote tissue healing as an alternative to metallic implants. Applications embrace hip, knee, and ligament repair and replacement, maxillofacial reconstruction and augmentation, spinal fusion, bone filler, and repair of periodontal diseases. Bioceramics are well-known for their superior wear resistance, high stiffness, resistance to oxidation, and low coefficient of friction...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29661034/the-use-of-chitosan-pla-nano-fibers-by-emulsion-eletrospinning-for-periodontal-tissue-engineering
#8
Renze Shen, Weihong Xu, Yanxiang Xue, Luyuan Chen, Haicheng Ye, Enyi Zhong, Zhanchao Ye, Jie Gao, Yurong Yan
OBJECTIVE: In this study, nanofibrous scaffolds base on pure polylactic acid (PLA) and chitosan/PLA blends were fabricated by emulsion eletrospinning. By modulating their mechanical and biological properties, cell-compatible and biodegradable scaffolds were developed for periodontal bone regeneration. METHODS: Pure PLA and different weight ratios of chitosan nano-particle/PLA nano-fibers were fabricated by emulsion eletrospinning. Scanning electron microscope (SEM) was performed to observe the morphology of nano-fibers...
April 16, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29596323/biofunctionalized-scaffold-in-bone-tissue-repair
#9
Francesca Diomede, Marco D'Aurora, Agnese Gugliandolo, Ilaria Merciaro, Tiziana Orsini, Valentina Gatta, Adriano Piattelli, Oriana Trubiani, Emanuela Mazzon
Bone tissue engineering is based on bone grafting to repair bone defects. Bone graft substitutes can contribute to the addition of mesenchymal stem cells (MSCs) in order to enhance the rate and the quality of defect regeneration. The stem cell secretome contains many growth factors and chemokines, which could affect cellular characteristics and behavior. Conditioned medium (CM) could be used in tissue regeneration avoiding several problems linked to the direct use of MSCs. In this study, we investigated the effect of human periodontal ligament stem cells (hPDLSCs) and their CM on bone regeneration using a commercially available membrane scaffold Evolution (EVO) implanted in rat calvarias...
March 29, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29565801/mesenchymal-stem-cells-of-dental-origin-for-inducing-tissue-regeneration-in-periodontitis-a-mini-review
#10
REVIEW
Beatriz Hernández-Monjaraz, Edelmiro Santiago-Osorio, Alberto Monroy-García, Edgar Ledesma-Martínez, Víctor Manuel Mendoza-Núñez
Periodontitis is a chronic disease that begins with a period of inflammation of the supporting tissues of the teeth table and then progresses, destroying the tissues until loss of the teeth occurs. The restoration of the damaged dental support apparatus is an extremely complex process due to the regeneration of the cementum, the periodontal ligament, and the alveolar bone. Conventional treatment relies on synthetic materials that fill defects and replace lost dental tissue, but these approaches are not substitutes for a real regeneration of tissue...
March 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29553121/influence-of-diameter-of-fiber-membrane-scaffolds-on-the-biocompatibility-of-hpdl-mesenchymal-stromal-cells
#11
José Luis Suarez-Franco, Febe Carolina Vázquez-Vázquez, Amaury Pozos-Guillen, Juan José Montesinos, Octavio Alvarez-Fregoso, Marco Antonio Alvarez-Perez
This study evaluated the influence in the biocompatibility of human periodontal ligament (hPDL) mesenchymal stromal cell onto poly lactic-acid (PLA) films and PLA fiber membrane. Fiber scaffold was prepared via air jet spinning (AJS) from PLA solutions (6, 7, and 10%) and analyzed using SEM, AFM and FTIR. Biocompatibility was evaluated by adhesion, proliferation and cell-material interaction. PLA film exhibited a smooth and homogenously surface topography in comparison with random orientation of PLA fiber with roughness structure where diameter size depends on PLA solution...
March 17, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/29527327/dna-methylation-profile-is-associated-with-the-osteogenic-potential-of-three-distinct-human-odontogenic-stem-cells
#12
Tingting Ai, Jieni Zhang, Xuedong Wang, Xiaowen Zheng, Xueyan Qin, Qian Zhang, Weiran Li, Wei Hu, Jiuxiang Lin, Feng Chen
Among the various sources of human autologous stem cells, stem cells isolated from dental tissues exhibit excellent properties in tissue engineering and regenerative medicine. However, the distinct potential of these odontogenic cell lines remains unclear. In this study, we analyzed DNA methylation patterns to determine whether specific differences existed among three different odontogenic cell types. Using the HumanMethylation450 Beadchip, the whole genomes of human dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs), and dental follicle progenitor cells (DFPCs) were compared...
2018: Signal Transduction and Targeted Therapy
https://www.readbyqxmd.com/read/29500836/the-effect-of-decellularized-tissue-engineered-constructs-on-periodontal-regeneration
#13
Amro Farag, Saeed M Hashimi, Cedryck Vaquette, Peter M Bartold, Dietmar W Hutmacher, Saso Ivanovski
AIM: To evaluate the effect of decellularized tissue engineered constructs on cell differentiation in vitro and periodontal regeneration in vivo. MATERIALS AND METHODS: Periodontal ligament cell (PDLC) sheets were loaded on polycaprolactone (PCL) scaffolds and then decellularized. Constructs were assessed for their effect on allogenic PDLC and mesenchymal stem cell (MSC) differentiation in vitro, as evaluated by gene expression of bone and periodontal ligament tissue markers post-seeding...
May 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29498025/dental-stem-cells-in-bone-tissue-engineering-current-overview-and-challenges
#14
Pinar Ercal, Gorke Gurel Pekozer, Gamze Torun Kose
The treatment of bone that is impaired due to disease, trauma or tumor resection creates a challenge for both clinicians and researchers. Critical size bone defects are conventionally treated with autografts which are associated with risks such as donor site morbidity and limitations like donor shortage. Bone tissue engineering has become a promising area for the management of critical size bone defects by the employment of biocompatible materials and the discovery of novel stem cell sources. Mesenchymal stem cells (MSCs) can be isolated with ease from various dental tissues including dental pulp stem cells, stem cells from apical papilla, dental follicle stem cells, stem cells from human exfoliated deciduous teeth, periodontal ligament stem cells, gingival stem cells and tooth germ derived stem cells...
March 2, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29470454/mineralization-induction-of-gingival-fibroblasts-and-construction-of-a-sandwich-tissue-engineered-complex-for-repairing-periodontal-defects
#15
Mingxuan Wu, Jie Wang, Yanning Zhang, Huijuan Liu, Fusheng Dong
BACKGROUND The ideal healing technique for periodontal tissue defects would involve the functional regeneration of the alveolar bone, cementum, and periodontal ligament, with new periodontal attachment formation. In this study, gingival fibroblasts were induced and a "sandwich" tissue-engineered complex (a tissue-engineered periodontal membrane between 2 tissue-engineered mineralized membranes) was constructed to repair periodontal defects. We evaluated the effects of gingival fibroblasts used as seed cells on the repair of periodontal defects and periodontal regeneration...
February 22, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29416335/human-%C3%AE-defensin-3-combined-gold-nanoparticles-for-enhancement-of-osteogenic-differentiation-of-human-periodontal-ligament-cells-in-inflammatory-microenvironments
#16
Jing Zhou, Yangheng Zhang, Lingjun Li, Huangmei Fu, Wenrong Yang, Fuhua Yan
Objective: It is a great challenge to absorb and conduct biophysicochemical interactions at the nano-bio interface. Peptides are emerging as versatile materials whose function can be programmed to perform specific tasks. Peptides combined nanoparticles might be utilized as a new approach of treatment. Human β-defensin 3 (hBD3), possesses both antimicrobial and proregeneration properties. Gold nanoparticles (AuNPs) have shown promising applications in the field of tissue engineering. However, the coordinating effects of AuNPs and hBD3 on human periodontal ligament cells (hPDLCs) remain unknown...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29398865/tooth-for-a-tooth-tissue-engineering-made-easy-at-dental-chairside
#17
Vandana Kharidhi Laxman, Rajendra Gururao Desai
Background: Stem cells are unspecialized, multipotent cells which can differentiate into different cell types. The human periodontal ligament encloses subpopulation of Periodontal Ligament Stem Cells (PDLSCs) which are able to regenerate the periodontium by differentiating into various cells of PDL. Literature have shown the promising results of periodontal regeneration by exvivo cultured transplantation of PDLSCs into the osseous defects. Methods: Based on current literature on use of ex vivo culture and associated problems, a novel technique is being presented , Stem cell application in periodontal regeneration (SAI-PRT) which uses autologous PDLSCs along with its niche adhering to extracted tooth root for direct application using gelatin sponge as scaffold in regeneration of intrabony periodontal defect bypassing ex-vivo culture...
March 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29368432/study-of-platelet-rich-fibrin-combined-with-rat-periodontal-ligament-stem-cells-in-periodontal-tissue-regeneration
#18
Xuejing Duan, Zhiyong Lin, Xiujuan Lin, Zhiqiang Wang, Yihua Wu, Mei Ji, Wei Lu, Xiaoyang Wang, Dongsheng Zhang
The objective of this study was to investigate the advantages and feasibility of periodontal tissue regeneration using platelet-rich fibrin (PRF) combined with rat periodontal ligament stem cells (PDLSCs) for the first time. We first determined the effect of PRF on rat PDLSCs in vitro. We next conducted an in vivo study, in which a tissue engineering technique was performed to repair periodontal defects in five groups: a blank group, collagen group (implanted collagen membrane), collagen + cells group (implanted collagen membrane and rat PDLSCs), PRF group (implanted PRF membrane) and PRF + cells group (implanted PRF membrane and rat PDLSCs)...
February 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29365250/proteolytic-nanoparticles-replace-a-surgical-blade-by-controllably-remodeling-the-oral-connective-tissue
#19
Assaf Zinger, Omer Adir, Matan Alper, Assaf Simon, Maria Poley, Chen Tzror, Zvi Yaari, Majd Krayem, Shira Kasten, Guy Nawy, Avishai Herman, Yael Nir, Sharon Akrish, Tidhar Klein, Janna Shainsky-Roitman, Dov Hershkovitz, Avi Schroeder
Surgical blades are common medical tools. However, blades cannot distinguish between healthy and diseased tissue, thereby creating unnecessary damage, lengthening recovery, and increasing pain. We propose that surgical procedures can rely on natural tissue remodeling tools-enzymes, which are the same tools our body uses to repair itself. Through a combination of nanotechnology and a controllably activated proteolytic enzyme, we performed a targeted surgical task in the oral cavity. More specifically, we engineered nanoparticles that contain collagenase in a deactivated form...
February 27, 2018: ACS Nano
https://www.readbyqxmd.com/read/29360752/mesenchymal-stem-cells-derived-from-healthy-and-diseased-human-gingiva-support-osteogenesis-on-electrospun-polycaprolactone-scaffolds
#20
Catherine Jauregui, Suyog Yoganarasimha, Parthasarathy Madurantakam
Periodontitis is a chronic inflammatory disease affecting almost half of the adult US population. Gingiva is an integral part of the periodontium and has recently been identified as a source of adult gingiva-derived mesenchymal stem cells (GMSCs). Given the prevalence of periodontitis, the purpose of this study is to evaluate differences between GMSCs derived from healthy and diseased gingival tissues and explore their potential in bone engineering. Primary clonal cell lines were established from harvested healthy and diseased gingival and characterized for expression of known stem-cell markers and multi-lineage differentiation potential...
January 23, 2018: Bioengineering
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