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Regenerative endodontic

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https://www.readbyqxmd.com/read/28216269/antibacterial-effects-of-antimicrobials-used-in-regenerative-endodontics-against-biofilm-bacteria-obtained-from-mature-and-immature-teeth-with-necrotic-pulps
#1
Jordon C Jacobs, Alex Troxel, Ygal Ehrlich, Kenneth Spolnik, Josef S Bringas, Richard L Gregory, Ghaeth H Yassen
INTRODUCTION: We investigated the direct and residual antibacterial effects of intracanal antimicrobials against bacterial biofilms obtained from infected mature and immature teeth with necrotic pulps. METHODS: Sterile dentin slabs (n = 100) were inoculated with bacterial biofilms obtained from root canals of an immature or a mature tooth with pulpal necrosis and incubated anaerobically for 3 weeks (n = 50 per biofilm). Dentin infected with each type of biofilm received 1 week of treatment with 1 or 5 mg/mL double antibiotic paste (DAP) in methylcellulose hydrogels, calcium hydroxide, or placebo paste or received no treatment (n = 10)...
February 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28215344/rac1-regulates-the-proliferation-adhesion-migration-and-differentiation-of-mdpc-23-cells
#2
Jing Ren, Guobin Liang, Li Gong, Bing Guo, Hongwei Jiang
INTRODUCTION: Stem cells are responsible for replacing damaged pulp tissue; therefore, promoting their survival and inducing their adhesion to dentin are vital. As a member of the Rho family of guanosine triphosphatases, Rac1 is an important regulator of osteoblast functions. However, little is known about its role in regenerative endodontic procedures. The current study examined the role of Rac1 in the proliferation, migration, and odontoblastic differentiation of MDPC-23 cells. METHODS: MDPC-23 cells were transfected with small interfering RNA to knock down Rac1 expression, and then their proliferation, migration, adhesion, and odontoblastic differentiation were examined in vitro...
February 15, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#3
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28194367/retreatment-of-failed-regenerative-endodontic-of-orthodontically-treated-immature-permanent-maxillary-central-incisor-a-case-report
#4
Musaed Fahad Al-Tammami, Saad A Al-Nazhan
A revascularization procedure was shown to be the best alternative therapy for immature teeth with necrotic pulp and apical infection. A 12 year old female with a history of trauma to her upper central incisor and a sinus tract was referred for endodontic treatment. She was an active orthodontic patient and had undergone regenerative endodontic treatment for the past 2 years. Clinical examination revealed no response to sensibility, percussion, and palpation tests. The preoperative radiograph showed an open apex and apical rarefaction...
February 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28190588/survival-of-the-apical-papilla-and-its-resident-stem-cells-in-a-case-of-advanced-pulpal-necrosis-and-apical-periodontitis
#5
Vanessa Chrepa, Brandon Pitcher, Michael A Henry, Anibal Diogenes
INTRODUCTION: Apical papilla represents a source of an enriched mesenchymal stem cell (MSC) population (stem cells of the apical papilla [SCAPs]) that modulates root development and may participate in regenerative endodontic procedures in immature teeth with pulp necrosis. The characteristics and phenotype of this tissue in the presence of inflammation are largely unknown. The purpose of this study was to characterize a human apical papilla sample that was isolated from an immature tooth with pulp necrosis and apical periodontitis...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28132713/effects-of-epigallocatechin-gallate-an-antibacterial-cross-linking-agent-on-proliferation-and-differentiation-of-human-dental-pulp-cells-cultured-in-collagen-scaffolds
#6
Young-Sun Kwon, Hee-Jin Kim, Yun-Chan Hwang, Vinicius Rosa, Mi-Kyung Yu, Kyung-San Min
INTRODUCTION: This study aimed to evaluate the efficacy of epigallocatechin gallate (EGCG), an antibacterial cross-linking agent, on the proliferation and differentiation of human dental pulp cells (hDPCs) cultured in hydrogel collagen scaffolds. METHODS: The odontogenic differentiation induced by EGCG was evaluated by alkaline phosphatase (ALP) activity and odontogenic-related gene expression using real-time polymerase chain reaction. The antibacterial effect of EGCG was investigated by a disc diffusion assay in comparison with glutaraldehyde...
February 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28131412/second-generation-platelet-concentrate-platelet-rich-fibrin-as-a-scaffold-in-regenerative-endodontics-a-case-series
#7
Hengameh Bakhtiar, Shahram Esmaeili, Setareh Fakhr Tabatabayi, Mohammad Reza Ellini, Mohammad Hossein Nekoofar, Paul M H Dummer
INTRODUCTION: The purpose of this case series was to report the clinical and radiographic results of a pulp regenerative procedure using platelet-rich fibrin (PRF), a second-generation platelet concentrate, in immature teeth with necrotic pulps. METHODS: Root canal revascularization using PRF was performed on 4 immature teeth with necrotic pulps. After access cavity preparation, the root canals were irrigated with low concentration sodium hypochlorite solution (1...
January 25, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28110920/longitudinal-cohort-study-of-regenerative-endodontic-treatment-for-immature-necrotic-permanent-teeth
#8
Edwin Ka Meng Chan, Mia Desmeules, Margaret Cielecki, Basma Dabbagh, Beatriz Ferraz Dos Santos
INTRODUCTION: The treatment of immature necrotic permanent teeth presents several clinical challenges in endodontics. Regenerative endodontic procedures (REPs) permit root development, increased canal wall thickness, and apical closure. This longitudinal cohort study aimed to evaluate the long-term clinical and radiographic outcomes of REPs of immature necrotic permanent teeth over a 30-month period. METHODS: This study was performed at the Division of Dentistry of the Montreal Children's Hospital, Montreal, Quebec, Canada...
January 19, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28092093/regenerative-endodontics-a-true-paradigm-shift-or-a-bandwagon-about-to-be-derailed
#9
REVIEW
H Nazzal, M S Duggal
AIMS: Regenerative endodontic techniques (RETs) have been hailed as a paradigm shift for the management of traumatised non-vital immature permanent anterior teeth. In this article the aim was to critically appraise the literature with regards to the outcome of regenerative endodontics on root development. METHODS: Critical review of the literature where regenerative endodontic techniques have been used in the management of immature non-vital teeth with continuation of root development as the main outcome reported...
February 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28050518/revitalization-of-an-immature-permanent-mandibular-molar-with-a-necrotic-pulp-using-platelet-rich-fibrin-a-case-report
#10
Dayalan Subash, Krishnamma Shoba, Shibu Aman, Srinivasan Kumar Indu Bharkavi
Any insult to the pulp during its development causes cessation of dentin formation and root growth. Pulpal status and degree of root development are the decisive factors in the treatment approach. Various treatment options have been tried like surgery with root-end sealing, calcium hydroxide-apexification, placement of apical plug and regenerative endodontic procedures to induce apexogenesis. An ideal scenario for a necrosed tooth with immature root would be continued root development coupled with regeneration of pulp tissue...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28041686/evaluation-of-a-commercially-available-hyaluronic-acid-hydrogel-restylane-as-injectable-scaffold-for-dental-pulp-regeneration-an-in%C3%A2-vitro-evaluation
#11
Vanessa Chrepa, Obadah Austah, Anibal Diogenes
INTRODUCTION: Regenerative endodontic procedures (REPs) are viable alternatives for treating immature teeth, yet these procedures do not predictably lead to pulp-dentin regeneration. A true bioengineering approach for dental pulp regeneration requires the incorporation of a scaffold conducive with the regeneration of the pulp-dentin complex. Several materials have been proposed as scaffolds for REPs; nonetheless, the majority are not eligible for immediate clinical chairside use. Thus, the aim of this study was to evaluate Restylane, a Food and Drug Administration-approved hyaluronic acid-based gel, as possible scaffold for REPs...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28041682/delayed-root-development-by-displaced-mineral-trioxide-aggregate-after-regenerative-endodontics-a-case-report
#12
Aovana Timmerman, Peter Parashos
INTRODUCTION: This case report presents the treatment of a 16-year-old boy with a maxillary lateral incisor (tooth #10) presenting with Oehlers type II dens invaginatus and diagnosed with previously initiated therapy and asymptomatic apical periodontitis. METHODS: A regenerative endodontic procedure (REP) was performed for the tooth but complicated by apically displaced mineral trioxide aggregate (MTA). Clinical and radiographic examination was undertaken yearly, and a cone-beam computed tomography scan was taken to investigate further the formation of hard tissues within the root canal...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27986102/regenerative-endodontic-procedures-a-perspective-from-stem-cell-niche-biology
#13
REVIEW
Manuel Marí-Beffa, Juan José Segura-Egea, Aránzazu Díaz-Cuenca
INTRODUCTION: Endodontics uses cell therapy strategies to treat pulpal and periapical diseases. During these therapies, surgeons aim to reconstruct the natural microenvironments that regulate the activity of dental stem cells. METHODS: We searched for more than 400 articles in PubMed using key words from regenerative endodontics and dental stem cell biology. In 268 articles, we reviewed what factors may influence histologic results after preclinical dental treatments that use regenerative endodontic procedures after pulpectomy...
January 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/27965900/treatment-of-a-developmental-groove-and-supernumerary-root-using-guided-tissue-regeneration-technique
#14
Zahra Alizadeh Tabari, Hamed Homayouni, Tahere Pourseyediyan, Armita Arvin, Derrick Eiland, Nima Moradi Majd
Introduction. The radicular groove is a developmental groove which is usually found on the palatal or lateral aspects of the maxillary incisor teeth. The present case is a maxillary lateral incisor with a small second root and a deep radicular groove. The developmental groove caused a combined periodontal-endodontic lesion. Methods. Case was managed using a combined treatment procedure involving nonsurgical root canal therapy and surgical periodontal treatment. After completion of root canal treatment, guided tissue regeneration (GTR) was carried out using decalcified freeze dried bone allograft (DFDBA) and a bioabsorbable collagenous membrane...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27955921/clinical-and-radiographic-outcomes-in-immature-permanent-necrotic-evaginated-teeth-treated-with-regenerative-endodontic-procedures
#15
Ling Li, Yihuai Pan, Liqin Mei, Jun Li
INTRODUCTION: Regenerative endodontics is a promising alternative treatment for immature permanent teeth with necrotic dental pulp. The present study assessed the time to resolution of clinical symptoms and radiographic changes in root dimensions in immature permanent necrotic teeth with dens evaginatus. METHODS: In this prospective study, clinical and radiographic data were collected for 20 teeth with dens evaginatus treated with a revascularization protocol for 1 year...
December 9, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27939739/characterization-of-a-vascular-endothelial-growth-factor-loaded-bioresorbable-delivery-system-for-pulp-regeneration
#16
Mamatha Yadlapati, Claudia Biguetti, Franco Cavalla, Francisco Nieves, Christopher Bessey, Pedram Bohluli, Gustavo Pompermaier Garlet, Ariadne Letra, Walid D Fakhouri, Renato Menezes Silva
INTRODUCTION: Vascular endothelial growth factor (VEGF) is a signal protein that stimulates angiogenesis and vasculogenesis and has been used in tissue regeneration and pulp regeneration experimental models. The purpose of this study was to develop a delivery system composed of a biodegradable fiber and controlled release of VEGF to promote cell viability and secure an adequate blood supply for the survival of human stem cells of the apical papilla (SCAP) favoring endodontic regenerative procedures...
January 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/27939733/mesoporous-calcium-silicate-nanoparticles-with-drug-delivery-and-odontogenesis-properties
#17
Ching-Yuang Huang, Tsui-Hsien Huang, Chia-Tze Kao, Yuan-Haw Wu, Wan-Chen Chen, Ming-You Shie
INTRODUCTION: Calcium silicate (CS) -based materials play an important role in the development of endodontic materials that induce bone/cementum tissue regeneration and inhibit bacterial viability. The aim of this study was to prepare novel mesoporous CS (MesoCS) nanoparticles that have osteogenic, drug delivery, and antibacterial characteristics for endodontic materials and also have an excellent ability to develop apatite mineralization. METHODS: The MesoCS nanoparticles were prepared using sol-gel methods...
January 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/27918898/roles-of-l-type-calcium-channels-cav1-2-and-the-distal-c-terminus-dct-in-differentiation-and-mineralization-of-rat-dental-apical-papilla-stem-cells-rscaps
#18
Qianqian Gao, Jianping Ge, Yanqin Ju, Changsheng Li, Jian Gao, Meisheng Wu, Shouliang Zhao
OBJECTIVE: Voltage-gated inward Ca(2+) currents (ICa) are triggered by cell depolarization and commonly produce transient increases in the cytoplasmic free Ca(2+) concentration. The CaV1.2 distal C-terminus is susceptible to proteolytic cleavage, which yields a truncated CaV1.2 subunit and a cleaved C-terminal fragment (CCt or DCT). Stem cells from the apical papilla (SCAPs) has a capacity for differentiation into the odontoblastic-like cells in vitro and dentin forming in vivo, which makes SCAPs advantages in tissue engineering and regenerative endodontic...
February 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/27912815/regenerative-endodontics-by-cell-homing
#19
REVIEW
Ling He, Juan Zhong, Qimei Gong, Bin Cheng, Sahng G Kim, Junqi Ling, Jeremy J Mao
Apical revascularization (AR) and platelet-rich plasma have been used to restore dental pulp vitality in infected immature permanent teeth. Two regenerative therapies are cell transplantation and cell homing. This article updates and benchmarks these therapies with cell homing. A case report concluded that AR increased root length; however, quantitative and statistical assessments disproved this. Regenerative endodontic therapies require prospective clinical trials demonstrating safety and efficacy. These therapies are intrinsically susceptible to procedural and patient variations...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27912814/biological-molecules-for-the-regeneration-of-the-pulp-dentin-complex
#20
REVIEW
Sahng G Kim
Regenerative endodontic treatment has yielded excellent clinical outcomes, but only several animal studies have shown the robust regeneration of the pulp-dentin complex. The biological molecules, if properly delivered, can enkindle regeneration of dental pulp and dentin rather than repair with tissues of periodontal origin. This review details the biological significance of regenerating the pulp-dentin complex, the effects of biological cues in pulp regeneration, and the delivery strategies of biological molecules to enhance the outcomes of regenerative endodontic therapy...
January 2017: Dental Clinics of North America
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