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Regenerative dentistry

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https://www.readbyqxmd.com/read/27877132/immunophenotyping-reveals-the-diversity-of-human-dental-pulp-mesenchymal-stromal-cells-in-vivo-and-their-evolution-upon-in-vitro-amplification
#1
Maxime Ducret, Hugo Fabre, Olivier Degoul, Gianluigi Atzeni, Colin McGuckin, Nico Forraz, Frédéric Mallein-Gerin, Emeline Perrier-Groult, Brigitte Alliot-Licht, Jean-Christophe Farges
Mesenchymal stromal/stem cells (MSCs) from human dental pulp (DP) can be expanded in vitro for cell-based and regenerative dentistry therapeutic purposes. However, their heterogeneity may be a hurdle to the achievement of reproducible and predictable therapeutic outcomes. To get a better knowledge about this heterogeneity, we designed a flow cytometric strategy to analyze the phenotype of DP cells in vivo and upon in vitro expansion with stem cell markers. We focused on the CD31(-) cell population to exclude endothelial and leukocytic cells...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27876576/the-bone-regenerative-capacity-of-canine-mesenchymal-stem-cells-is-regulated-by-site-specific-multilineage-differentiation
#2
Juan Bugueño, Weihua Li, Pinky Salat, Ling Qin, Sunday O Akintoye
OBJECTIVES: Mesenchymal stem cells (MSCs) offer a promising therapy in dentistry because of their multipotent properties. Selecting donor MSCs is crucial because Beagle dogs (canines) commonly used in preclinical studies have shown variable outcomes, and it is unclear whether canine MSCs (cMSCs) are skeletal site specific. This study tested whether jaw and long bone cMSCs have disparate in vitro and in vivo multilineage differentiation capabilities. STUDY DESIGN: Primary cMSCs were isolated from the mandible (M-cMSCs) and femur (F-cMSCs) of four healthy Beagle dogs...
September 28, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27829740/induced-pluripotent-stem-cells-in-dentistry
#3
REVIEW
Paramel Mohan Sunil
Induced pluripotent stem cells (iPSCs), a path-breaking invention, have revolutionized the regenerative medicine field. The biggest advantage of this technology is its patient-specific nature and so it is nonimmunogenic. It involves autologous tissues with limitless source of cells throughout life. The Nobel-winning concept involves the reprograming of terminally differentiated cells by external factors and has a tremendous role in the treatment of genetic disorders, regeneration of tissues, drug discovery, and disease modeling...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27818690/stem-cells-of-dental-origin-current-research-trends-and-key-milestones-towards-clinical-application
#4
REVIEW
Athina Bakopoulou, Imad About
Dental Mesenchymal Stem Cells (MSCs), including Dental Pulp Stem Cells (DPSCs), Stem Cells from Human Exfoliated Deciduous teeth (SHED), and Stem Cells From Apical Papilla (SCAP), have been extensively studied using highly sophisticated in vitro and in vivo systems, yielding substantially improved understanding of their intriguing biological properties. Their capacity to reconstitute various dental and nondental tissues and the inherent angiogenic, neurogenic, and immunomodulatory properties of their secretome have been a subject of meticulous and costly research by various groups over the past decade...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27790081/regenerative-dentistry-animal-model-for-regenerative-endodontology
#5
Nisarat Ruangsawasdi, Matthias Zehnder, Raphael Patcas, Chafik Ghayor, Franz E Weber
BACKGROUND: Ectopic tissue has been observed frequently in human root canal specimens when cell homing studies were performed at the dorsum of rodents. In contrast, pulp-like tissue formed when immature teeth were implanted on top of the rat calvaria. It was surmised, yet not tested, that the implantation site might affect tissue ingrowth. METHODS: Four root sections from human immature molars cleaned with 5% sodium hypochlorite (NaOCl) followed by 17% ethylenediaminetetraacetic acid (EDTA) were implanted per rat (n = 5)...
September 2016: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/27711028/platelet-rich-fibrin-a-boon-in-regenerative-endodontics
#6
Priyanka D Rebentish, Girish Umashetty, Harpreet Kaur, Trupthi Doizode, Mithun Kaslekar, Shouvik Chowdhury
Research into regenerative dentistry has contributed momentum to the field of molecular biology. Periapical surgery aims at removing periapical pathology to achieve complete wound healing and regeneration of bone and periodontal tissue. Regenerative endodontic procedures are widely being added to the current armamentarium of pulp therapy procedures. The regenerative potential of platelets has been deliberated. Platelet-rich fibrin (PRF) is a wonderful tissue-engineering product and has recently gained much popularity due its promising results in wound healing bone induction...
December 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27689517/platelet-rich-fibrin-prf-in-implant-dentistry-in-combination-with-new-bone-regenerative-technique-in-elderly-patients
#7
Antonio Cortese, Giuseppe Pantaleo, Antonio Borri, Mario Caggiano, Massimo Amato
INTRODUCTION: Some studies have demonstrated that platelet rich fibrin (PRF) is a healing biomaterial with a great potential for bone and soft tissue regeneration, without any inflammatory reactions and may be used alone or in combination with bone grafts, promoting hemostasis, bone growth, and maturation. PRF appears as a natural and satisfactory aid in bone regenerative surgery in elderly patients with favorable results and low risks. AIM: This study wants to demonstrate how PRF in association with a new split crest augmentation technique can be a great aid in implant rehabilitation, especially in the elderly patients, when bone regeneration is required...
September 22, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27672729/platelet-rich-fibrin-and-soft-tissue-wound-healing-a-systematic-review
#8
Richard J Miron, Masako Fujioka-Kobayashi, Mark Bishara, Yufeng Zhang, Maria Hernandez, Joseph Choukroun
The growing multidisciplinary field of tissue engineering aims at predictably regenerating, enhancing, or replacing damaged or missing tissues for a variety of conditions caused by trauma, disease, and old age. One area of research that has gained tremendous awareness in recent years is that of platelet-rich fibrin (PRF), which has been utilized across a wide variety of medical fields for the regeneration of soft tissues. This systematic review gathered all the currently available in vitro, in vivo, and clinical literature utilizing PRF for soft tissue regeneration, augmentation, and/or wound healing...
October 10, 2016: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/27648076/innovative-dental-stem-cell-based-research-approaches-the-future-of-dentistry
#9
REVIEW
Shayee Miran, Thimios A Mitsiadis, Pierfrancesco Pagella
Over the past decade, the dental field has benefited from recent findings in stem cell biology and tissue engineering that led to the elaboration of novel ideas and concepts for the regeneration of dental tissues or entire new teeth. In particular, stem cell-based regenerative approaches are extremely promising since they aim at the full restoration of lost or damaged tissues, ensuring thus their functionality. These therapeutic approaches are already applied with success in clinics for the regeneration of other organs and consist of manipulation of stem cells and their administration to patients...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27612840/recent-advancements-in-regenerative-dentistry-a-review
#10
REVIEW
Pouya Amrollahi, Brinda Shah, Amir Seifi, Lobat Tayebi
Although human mouth benefits from remarkable mechanical properties, it is very susceptible to traumatic damages, exposure to microbial attacks, and congenital maladies. Since the human dentition plays a crucial role in mastication, phonation and esthetics, finding promising and more efficient strategies to reestablish its functionality in the event of disruption has been important. Dating back to antiquity, conventional dentistry has been offering evacuation, restoration, and replacement of the diseased dental tissue...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27594561/gingiva-as-a-new-and-the-most-accessible-source-of-mesenchymal-stem-cells-from-the-oral-cavity-to-be-used-in-regenerative-therapies
#11
Bartłomiej Górski
Since the discovery of bone marrow mesenchymal stem cells (BMMSCs), many researchers have focused their attention on new sources of mesenchymal stem cells (MSCs). Consequently, MSCs that display self-renewal capacity, multidifferentiation potential and immunomodulatory properties have been isolated from human oral tissues, including tooth, periodontal ligament, and gingiva. Oral MSCs involve dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), periodontal ligament stem cells (PDLSCs), dental follicle stem cells (DFCs), stem cells from apical papilla (SCAP) and gingival stem cells (GMSCs)...
2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/27587367/optimized-platelet-rich-fibrin-with-the-low-speed-concept-growth-factor-release-biocompatibility-and-cellular-response
#12
Masako Fujioka-Kobayashi, Richard J Miron, Maria Hernandez, Umadevi Kandalam, Yufeng Zhang, Joseph Choukroun
BACKGROUND: Over the past decade, the use of leukocyte platelet rich fibrin (L-PRF) has gained tremendous momentum in regenerative dentistry as a low-cost fibrin matrix utilized for tissue regeneration. In this study, we characterized how centrifugation speed (G-force) along with centrifugation time influence growth factor release from fibrin clots, as well as the cellular activity of gingival fibroblasts exposed to each PRF matrix. METHODS: Standard L-PRF served as a control (2700rpm-12 minutes)...
September 2, 2016: Journal of Periodontology
https://www.readbyqxmd.com/read/27565550/dental-cell-sheet-biomimetic-tooth-bud-model
#13
Nelson Monteiro, Elizabeth E Smith, Shantel Angstadt, Weibo Zhang, Ali Khademhosseini, Pamela C Yelick
Tissue engineering and regenerative medicine technologies offer promising therapies for both medicine and dentistry. Our long-term goal is to create functional biomimetic tooth buds for eventual tooth replacement in humans. Here, our objective was to create a biomimetic 3D tooth bud model consisting of dental epithelial (DE) - dental mesenchymal (DM) cell sheets (CSs) combined with biomimetic enamel organ and pulp organ layers created using GelMA hydrogels. Pig DE or DM cells seeded on temperature-responsive plates at various cell densities (0...
November 2016: Biomaterials
https://www.readbyqxmd.com/read/27503546/silk-fibroin-and-graphene-oxide-composites-promote-human-periodontal-ligament-stem-cell-spontaneous-differentiation-into-osteo-cementoblast-like-cells
#14
Mar Vera-Sánchez, Salvador Aznar-Cervantes, Eva Jover, David García-Bernal, Ricardo E Oñate-Sánchez, Diana Hernández-Romero, Jose M Moraleda, Mar Collado-González, Francisco Javier Rodríguez-Lozano, Jose Luis Cenis
Graphene represents one of the most interesting additions to the tissue engineering toolbox. Novel graphene-based composites are required to improve the beneficial graphene properties in terms of tridimensional polymeric structure, conferring a higher mechanical strength and favoring the differentiation of human mesenchymal stem cells. Here, we have demonstrated in a wide range of composite combinations, the successful use of graphene and silk-fibroin constructs for future bioengineering applications in the field of clinical regenerative dentistry using human periodontal ligament stem cells...
November 15, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27458265/concise-review-in-vitro-formation-of-bone-like-nodules-sheds-light-on-the-application-of-stem-cells-for-bone-regeneration
#15
Saad Mechiche Alami, Sophie C Gangloff, Dominique Laurent-Maquin, Yun Wang, Halima Kerdjoudj
: : Harnessing the differentiation of stem cells into bone-forming cells represents an intriguing avenue for the creation of functional skeletal tissues. Therefore, a profound understanding of bone development and morphogenesis sheds light on the regenerative application of stem cells in orthopedics and dentistry. In this concise review, we summarize the studies deciphering the mechanisms that govern osteoblast differentiation in the context of in vitro formation of bone-like nodules, including morphologic and molecular events as well as cellular contributions to mineral nucleation, occurring during osteogenic differentiation of stem cells...
July 25, 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/27277190/in-vitro-and-in-vivo-differentiation-of-progenitor-stem-cells-obtained-after-mechanical-digestion-of-human-dental-pulp
#16
Manuela Monti, Antonio Graziano, Silvana Rizzo, Cesare Perotti, Claudia Del Fante, Riccardo d'Aquino, CarloAlberto Redi, Ruggero Rodriguez Y Baena
Human population is facing a revolutionary change in the demographic structure with an increasing number of elderly people requiring an unmet need to ensure a smooth aging process and dental care is certainly an important aspect that has to be considered. To date, dentistry has been conservative and the need of transferring the scientific models of regenerative dentistry into clinical practice is becoming a necessity. The aim of this study was to characterize the differentiation commitment (in vitro) and the clinical grafting ability (in vivo) of a population of progenitor stem cells obtained after mechanical digestion of dental pulp with an innovative system recently developed...
June 9, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27213712/the-chemistry-and-biological-activities-of-mimosine-a-review
#17
REVIEW
Binh Cao Quan Nguyen, Shinkichi Tawata
Mimosine [β-[N-(3-hydroxy-4-oxypyridyl)]-α-aminopropionic acid] is a non-protein amino acid found in the members of Mimosoideae family. There are a considerable number of reports available on the chemistry, methods for estimation, biosynthesis, regulation, and degradation of this secondary metabolite. On the other hand, over the past years of active research, mimosine has been found to have various biological activities such as anti-cancer, antiinflammation, anti-fibrosis, anti-influenza, anti-virus, herbicidal and insecticidal activities, and others...
August 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/27178071/effects-of-usag-1-and-bmp7-deficiencies-on-murine-tooth-morphogenesis
#18
Kazuyuki Saito, Katsu Takahashi, Masakazu Asahara, Honoka Kiso, Yumiko Togo, Hiroko Tsukamoto, Boyen Huang, Manabu Sugai, Akira Shimizu, Masaharu Motokawa, Harold C Slavkin, Kazuhisa Bessho
BACKGROUND: Wnt5a and Mrfzb1 genes are involved in the regulation of tooth size, and their expression levels are similar to that of Bmp7 during morphogenesis, including during the cap and early bell stages of tooth formation. We previously reported that Usag-1-deficient mice form supernumerary maxillary incisors. Thus, we hypothesized that BMP7 and USAG-1 signaling molecules may play important roles in tooth morphogenesis. In this study, we established double genetically modified mice to examine the in vivo inter-relationships between Bmp7 and Usag-1...
May 13, 2016: BMC Developmental Biology
https://www.readbyqxmd.com/read/27161014/craniofacial-wound-healing-with-photobiomodulation-therapy-new-insights-and-current-challenges
#19
REVIEW
P R Arany
The fundamental pathophysiologic response for the survival of all organisms is the process of wound healing. Inadequate or lack of healing constitutes the etiopathologic basis of many oral and systemic diseases. Among the numerous efforts to promote wound healing, biophotonics therapies have shown much promise. Advances in photonic technologies and a better understanding of light-tissue interactions, from parallel biophotonics fields such as in vivo optical imaging and optogenetics, are spearheading their popularity in biology and medicine...
August 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27087462/clinical-application-of-chitosan-in-dental-specialities
#20
Mieszko Wieckiewicz, Klaus W Boening, Natalia Grychowska, Anna Paradowska-Stolarz
Chitosan is a linear amino-polysaccharide and a natural polymer with a structure based on repetitive deacetylated and acetylated units randomly distributed. It is produced from chitin, one of the most common naturally occurring polysaccharides. Its numerous biomedical applications have been extensively described in the literature. It becomes more and more popular therapeutic agent and its use is constantly extended. Given its commonness, regenerative properties, easy chemical treatment, and biocompatibility, it might be used in the treatment of damaged oral cavity tissues...
April 18, 2016: Mini Reviews in Medicinal Chemistry
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