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Regenerative endodontic

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https://www.readbyqxmd.com/read/28716215/clinical-and-radiographic-assessment-of-the-efficacy-of-a-collagen-membrane-in-regenerative-endodontics-a-randomized-controlled-clinical%C3%A2-trial
#1
Xijun Jiang, He Liu, Chufang Peng
INTRODUCTION: Recent reviews confirm a general lack of randomized, controlled clinical studies on the efficacy of regenerative endodontics in immature teeth affected by pulp and periapical diseases. Moreover, we have no evidence of the curative efficacy of collagen membranes used as scaffolds in regenerative endodontics. Here, we evaluated whether a Bio-Gide collagen membrane (Geistlich Pharma AG, Wolhusen, Switzerland) has efficacy in promoting dentin formation in regenerative endodontics...
July 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28712637/treatment-options-for-failing-regenerative-endodontic-procedures-report-of-3-cases
#2
Antonis Chaniotis
INTRODUCTION: Regenerative treatments in necrotic immature teeth are suggested as alternatives to conventional multiple or single-step apexification procedures. Although case reports and case series provide promising results, the treatment protocol is not yet fully established and regenerative procedure might fail. Once failure is encountered, the apexification treatment options still remain. METHODS: Repetition of the regenerative procedure after initial revitalization failure has not been suggested yet...
July 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28691752/mineral-trioxide-aggregate-improves-healing-response-of-periodontal-tissue-to-injury-in-mice
#3
I Vidovic Zdrilic, I O de Azevedo Queiroz, B G Matthews, J E Gomes-Filho, M Mina, I Kalajzic
BACKGROUND AND OBJECTIVE: Mineral trioxide aggregate (MTA) is a biomaterial used in endodontic procedures as it exerts beneficial effects on regenerative processes. In this study, we evaluate the effect of MTA on healing of periodontal ligament (PDL) and surrounding tissue, following injury, in a transgenic mouse model and on the differentiation of murine mesenchymal progenitor cells in vitro. MATERIAL AND METHODS: We used an inducible Cre-loxP in vivo fate mapping approach to examine the effects of MTA on the contributions of descendants of cells expressing the αSMA-CreERT2 transgene (SMA9(+) ) to the PDL and alveolar bone after experimental injury to the root furcation on the maxillary first molars...
July 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28672895/role-of-transient-receptor-potential-channel-6-in-the-odontogenic-differentiation-of-human-dental-pulp-cells
#4
Xiaoting Yang, Zhi Song, Lingling Chen, Runfu Wang, Shuheng Huang, Wei Qin, Jia Guo, Zhengmei Lin
Pulp capping is a restorative technique employed in an attempt to maintain pulpal vitality and generate reparative dentin. Ca(2+) released from capping materials is suggested to promote reparative dentin formation. Transient receptor potential channel 6 (TRPC6) is a receptor-operated Ca2+ channel that serves an important role in Ca2+ influx in the majority of non-excitable cells, and influences the calcium signaling and cell respond. Therefore, the purpose of the present study was to gain an insight into the role of TRPC6 in the odontoblastic differentiation of human dental pulp cells (HDPCs)...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28667922/combination-of-hydroxyapatite-platelet-rich-fibrin-and-amnion-membrane-as-a-novel-therapeutic-option-in-regenerative-periapical-endodontic-surgery-case-series
#5
Uday Kiran Uppada, Butchibabu Kalakonda, Pradeep Koppolu, Narendra Varma, Kiran Palakurthy, Venkatesh Manchikanti, Shilpa Prasad, Shereen Samar, Lingam Amara Swapna
INTRODUCTION: Periapical surgery is the last resort in the arsenal of an endodontist to effectively deal with periapical lesions that result from necrosis of the pulp. Bone grafts, growth factors and membranes form an array of regenerative materials that influence the healing outcome of periapical surgery. PRESENTATION OF CASE: The main purpose of the two cases reported here was to assess the potential benefits of a combination of bone graft, platelet-rich fibrin (PRF) and amnion membrane in terms of reduced post-operative discomfort, radiographic evidence of accelerated periapical bone healing and present a novel therapeutic option in the management of large periapical lesions...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28662879/use-of-platelet-rich-plasma-in-endodontic-procedures-in-adults-regeneration-or-repair-a-report-of-3-cases-with-5%C3%A2-years-of-follow-up
#6
José Francisco Gaviño Orduña, Javier Caviedes-Bucheli, María C Manzanares Céspedes, Esther Berástegui Jimeno, Benjamín Martín Biedma, Juan José Segura-Egea, José López-López
INTRODUCTION: Regenerative endodontic procedures (REP) are a promising alternative for necrotic immature teeth in adolescents and children, but very little evidence is available on this alternative in long-lasting necrotic teeth with open apices in adults. REPs are designed to replace damaged structures of the pulp-dentin complex, but no regeneration has been obtained in any of the cases described in necrotic immature permanent teeth with apical periodontitis with histologic results. The results are limited to periapical tissue repair with increasing root length, thickening of the root walls, and apical closure in young patients...
June 26, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28656722/formation-of-spheroids-by-dental-pulp-derived-cells-in-the-presence-of-hypoxia-and-hypoxia-mimetic-agents
#7
K Janjić, B Lilaj, A Moritz, H Agis
AIM: To evaluate the impact of hypoxia and hypoxia mimetic agents (HMA) on the formation and activity of spheroids by dental pulp-derived cells (DPC). METHODOLOGY: DPC on agarose-coated plates were treated with hypoxia and the HMA dimethyloxallyl glycine (DMOG), desferrioxamine (DFO) and L-mimosine (L-MIM). Images of spheroids were taken directly after seeding and at 6h and 24h. Spheroid sizes were quantified by area measurement with ImageJ software. Viability was assessed with Live-Dead staining, MTT and resazurin-based toxicity assay...
June 28, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28653761/a-prospective-clinical-study-of-regenerative-endodontic-treatment-of-traumatised-immature-teeth-with-necrotic-pulps-using-bi-antibiotic-paste
#8
H Nazzal, K Kenny, A Altimimi, J Kang, M S Duggal
AIM: To evaluate the treatment outcomes of a revitalisation endodontic technique (RET) for the management of traumatised immature teeth with necrotic pulps in children. METHODOLOGY: Fifteen healthy children (age range=7-10 years) with traumatised immature maxillary incisors with necrotic pulps treated with bi-antibiotic revitalisation endodontic techniques were prospectively assessed over approximately two years (mean=22 months). One operator undertook all treatments, clinical reviews and standardised radiographic exposures with radiographic analysis being carried out by two calibrated experienced clinicians...
June 27, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28616672/biological-effects-of-silk-fibroin-3d-scaffolds-on-stem-cells-from-human-exfoliated-deciduous-teeth-sheds
#9
M Collado-González, M P Pecci-Lloret, D García-Bernal, S Aznar-Cervantes, R E Oñate-Sánchez, J M Moraleda, J L Cenis, F J Rodríguez-Lozano
The aim is to investigate in vitro biological effects of silk fibroin 3D scaffolds on stem cells from human exfoliated deciduous teeth (SHEDs) in terms of proliferation, morphological appearance, cell viability, and expression of mesenchymal stem cell markers. Silk fibroin 3D scaffolding materials may represent promising suitable scaffolds for their application in regenerative endodontic therapy approaches. SHEDs were cultured in silk fibroin 3D scaffolds. Then, cell numbers were counted and the Alamar blue colorimetric assay was used to analyse cell proliferation after 24, 48, 72, and 168 h of culture...
June 14, 2017: Odontology
https://www.readbyqxmd.com/read/28583238/regenerative-endodontic-treatment-of-necrotic-primary-molars-with-missing-premolars-a-case-series
#10
Ayca T Ulusoy, Zafer C Cehreli
The endodontic treatment of necrotic primary teeth with missing successors presents a unique clinical challenge. The purpose of this report was to describe the clinical and radiological outcomes of regenerative endodontic treatment (revascularization) of necrotic primary molars. Four infected necrotic primary second molars with missing premolars were treated with a two-visit revascularization protocol. The crowns were restored with amalgam or acid-etch composite resin. The teeth were followed-up clinically and radiographically for 18 months...
May 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/28578888/comparative-evaluation-of-chemotactic-factor-effect-on-migration-and-differentiation-of-stem-cells-of-the-apical-papilla
#11
Sara Fayazi, Koyo Takimoto, Anibal Diogenes
INTRODUCTION: Cell homing strategies could potentially be used in regenerative endodontic procedures (REPs) to promote the progressive coronal migration of stem cells, including stem cells of the apical papilla (SCAPs), along with formation of a new vascular network without the need for intentional apical trauma and intracanal bleeding. Although many chemotactic factors have been investigated for different mesenchymal stem cells, their effect on SCAP migration and differentiation is not fully understood...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28577961/histologic-evaluation-of-regenerative-endodontic-procedures-with-the-use-of-chitosan-scaffolds-in-immature-dog-teeth-with-apical-periodontitis
#12
Paulo J Palma, João C Ramos, João B Martins, Anibal Diogenes, Maria H Figueiredo, Paula Ferreira, Carlos Viegas, João M Santos
INTRODUCTION: The aim of this study was to evaluate histologically the newly formed tissues after regenerative endodontic procedures (REPs) in dogs using either a blood clot (BC) or 2 different formulations of a chitosan hydrogel as scaffolds. METHODS: Apical periodontitis was induced by inoculating immature teeth with oral plaque in 4 beagle dogs. Teeth (n = 96) were divided into 2 control (n = 20) and 4 test groups (n = 76) according to the treatment: apexification and REPs with BC, sodium hyaluronate:chitosan (HA:CS) scaffolds, or pectin:chitosan (P:CS) scaffolds...
May 31, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28568134/lysyl-oxidase-mediated-vegf-induced-differentiation-and-angiogenesis-in-human-dental-pulp-cells
#13
W J Bae, J K Yi, J Park, S K Kang, J H Jang, E C Kim
AIM: To investigate the effects of recombinant human vascular endothelial growth factor (rhVEGF) on odontoblastic differentiation, in vitro angiogenesis, and expression and activity of lysyl oxidase (LOX) in human dental pulp cells (HDPCs), compared with rhFGF-2. To identify the underlying molecular mechanisms, the study focused on whether LOX was responsible for the actions of rhVEGF. METHODOLOGY: rhVEGF was constructed using the pBAD-HisA plasmid in Escherichia coli...
June 1, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28567140/bioactive-glass-in-endodontic-therapy-and-associated-microsurgery
#14
REVIEW
Andrea Corrado Profeta, Gian Marco Prucher
INTRODUCTION: Bioactive-glass (B-G) has become a valuable adjunct to promote hard-tissue healing in many clinical situations and is of particular interest for endodontic care because of its biocompatibility, regenerative and antimicrobial properties as well as chemical composition that closely resembles the mineral make-up of human bone and dentine. THERAPY: Initial studies suggested that bacteria-tight sealing within the entire root canal system can be achieved and successfully maintained after orthograde treatment...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28545523/l-mimosine-and-hypoxia-can-increase-angiogenin-production-in-dental-pulp-derived-cells
#15
Klara Janjić, Michael Edelmayer, Andreas Moritz, Hermann Agis
BACKGROUND: Angiogenin is a key molecule in the healing process which has been successfully applied in the field of regenerative medicine. The role of angiogenin in dental pulp regeneration is unclear. Here we aimed to reveal the impact of the hypoxia mimetic agent L-mimosine (L-MIM) and hypoxia on angiogenin in the dental pulp. METHODS: Human dental pulp-derived cells (DPC) were cultured in monolayer and spheroid cultures and treated with L-MIM or hypoxia. In addition, tooth slice organ cultures were applied to mimic the pulp-dentin complex...
May 25, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28528141/portland-cement-induces-human-periodontal-ligament-cells-to-differentiate-by-upregulating-mir-146a
#16
Min-Ching Wang, Li-Yin Yeh, Wen-Yu Shih, Wan-Chun Li, Kuo-Wei Chang, Shu-Chun Lin
BACKGROUND/PURPOSE: Bioaggregates such as Portland cement (PC) can be an economical alternative for mineral trioxide aggregate (MTA) with additional benefit of less discoloration. MTA has been known to induce differentiations of several dental cells. MicroRNAs are important regulators of biological processes, including differentiation, physiologic homeostasis, and disease progression. This study is to explore how PC enhances the differentiation of periodontal ligament (PDL) cells in microRNAs level...
May 18, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28527851/intentional-replantation-of-an-avulsed-immature-permanent-incisor-a-case-report
#17
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Marcelo de Morais Vitoriano
This case report discusses the successful endodontic treatment of an open apex maxillary right permanent central incisor that had been avulsed and incorrectly replanted in a 7-year-old patient. The tooth was carefully re-extracted followed by cleaning of the alveolar socket and immediate replantation. However, pulp necrosis was diagnosed, and regenerative endodontic treatment was performed. The root canal system was disinfected by passive ultrasonic irrigation with 2.5% sodium hypochlorite. At the first visit, the tooth was repositioned and immobilized with an appropriate semirigid splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28511779/an-evidence-based-review-of-the-efficacy-of-treatment-approaches-for-immature-permanent-teeth-with-pulp-necrosis
#18
REVIEW
Bill Kahler, Giampiero Rossi-Fedele, Nadia Chugal, Louis M Lin
INTRODUCTION: Two fundamental assumptions for teeth treated with regenerative endodontic procedures (REPs) are (1) that the clinical outcome is comparable with the traditional techniques of calcium hydroxide apexification and mineral trioxide aggregate apical barrier techniques and (2) that REPs will result in further root maturation. METHODS: A systematic review of the electronic databases (Scopus, PubMed, and Web of Science) involved a search for studies that used quantitative assessments of root maturation...
May 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28511093/hypoxia-based-strategies-for-regenerative-dentistry-views-from-the-different-dental-fields
#19
REVIEW
Anna Sonja Müller, Klara Janjić, Bledar Lilaj, Michael Edelmayer, Hermann Agis
The understanding of the cell biological processes underlying development and regeneration of oral tissues leads to novel regenerative approaches. Over the past years, knowledge on key roles of the hypoxia-based response has become more profound. Based on these findings, novel regenerative approaches for dentistry are emerging, which target cellular oxygen sensors. These approaches include hypoxia pre-conditioning and pharmacologically simulated hypoxia. The increase in studies on hypoxia and hypoxia-based strategies in regenerative dentistry highlights the growing attention to hypoxia's role in regeneration and its underlying biology, as well as its application in a therapeutic setting...
April 26, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28508244/interventions-for-the-endodontic-management-of-non-vital-traumatised-immature-permanent-anterior-teeth-in-children-and-adolescents-a-systematic-review-of-the-evidence-and-guidelines-of-the-european-academy-of-paediatric-dentistry
#20
REVIEW
M Duggal, H J Tong, M Al-Ansary, W Twati, P F Day, H Nazzal
AIM: This systematic review was undertaken in order to develop guidelines for the European Academy of Paediatric Dentistry for the management of non-vital permanent anterior teeth with incomplete root development. METHODS: Three techniques were considered; apexification by single or multiple applications of calcium hydroxide, use of Mineral Trioxide Aggregate (MTA) for the creation of an apical plug followed by obturation of the root canal, and finally a Regenerative Endodontic Technique (RET)...
June 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
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