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Journal of Endodontics

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https://www.readbyqxmd.com/read/28917577/direct-pulp-capping-with-calcium-hydroxide-mineral-trioxide-aggregate-and-biodentine-in%C3%A2-permanent-young-teeth-with-caries-a%C3%A2-randomized-clinical-trial
#1
Claudia Brizuela, Andrea Ormeño, Carolina Cabrera, Roxana Cabezas, Carolina Inostroza Silva, Valeria Ramírez, Montse Mercade
INTRODUCTION: Direct pulp capping treatment is intended to preserve pulp vitality, to avoid or retard root canal treatment, and, in cases with an open apex, to allow continued root development. Historically, calcium hydroxide (CH) was the gold standard material, but nowadays calcium silicate materials (CSMs) are displacing CH because of their high bioactivity, biocompatibility, sealing ability, and mechanical properties. However, more randomized clinical trials are needed to confirm the appropriateness of CSMs as replacement materials for CH in direct pulp capping procedures...
September 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28888688/comparing-the-centering-ability-of-different-pathfinding-systems-and-their-effect-on-final-instrumentation-by-hyflex-cm
#2
Lu Shi, Shova Wagle
INTRODUCTION: Recently, different rotary glide path systems have been introduced. The aim of this study was to compare the centering ability of different rotary pathfinding systems and their effect on the final preparation by Hyflex CM files. METHODS: Sixty endodontic training blocks with J-shaped canals were divided into 3 groups according to the pathfinding system used. Instrumentation was done with G-File + Hyflex CM (G-File group), PathFile + Hyflex CM (PathFile group), and Hyflex GPF + Hyflex CM (GPF group)...
September 6, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28864219/regenerative-endodontics-versus-apexification-in-immature-permanent-teeth-with-apical-periodontitis-a-prospective-randomized-controlled-study
#3
Jiacheng Lin, Qian Zeng, Xi Wei, Wei Zhao, Minyi Cui, Jing Gu, Jiaxuan Lu, Maobin Yang, Junqi Ling
INTRODUCTION: The aim of the study was to compare the outcomes of regenerative endodontic treatment (RET) and apexification on immature permanent teeth with pulp necrosis and apical periodontitis. METHODS: A total of 118 patients (118 teeth) were recruited and randomly assigned to either RET or apexification treatment. Each treatment group was divided into 2 subgroups according to the etiology: dens evaginatus or trauma. Clinical symptoms and complications were recorded, and cone-beam computed tomographic imaging with a limited field of view was used to measure the change of root length, root thickness, and apical foramen size at the 12-month follow-up...
August 29, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28864218/the-association-between-the-anatomic-landmarks-of-the-pulp-chamber-floor-and-the-prevalence-of-middle-mesial-canals-in-mandibular-first-molars-an-in%C3%A2-vivo-analysis
#4
Navid Akbarzadeh, Anita Aminoshariae, Navid Khalighinejad, J Martin Palomo, Syed Ali, James C Kulild, Ghazal Sadeghi, Andre Mickel
INTRODUCTION: The present study aimed to determine the incidence and anatomic variation of the middle mesial (MM) canal in mandibular permanent first molars using cone-beam computed tomographic imaging and to evaluate the association between the presence of MM canals and anatomic landmarks of the pulp chamber floor in the mesial root. METHODS: In this in vivo cross-sectional study, 210 CBCT scans of mandibular fist molars from 210 patients were included. CBCT scans were evaluated in 3 sections, and the following data were collected for further analysis: identification of the MM canal, the distance between the mesiobuccal (MB) and mesiolingual (ML) orifices, the presence of any isthmus between the MB and ML orifices, and the MB and ML root canal system (RCS) configurations...
August 29, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28864216/langerhans-cell-histiocytosis-mimicking-periapical-pathology-in-a-39-year-old-man
#5
Scott M Peters, Julie Pastagia, Angela J Yoon, Elizabeth M Philipone
Langerhans cell histiocytosis (LCH) is a clonal neoplastic proliferation of Langerhans-type dendritic cells, with more than 50% of cases of LCH seen in children younger than 15 years of age. The most common clinical presentation of LCH is solitary or multiple bony lesions. The jaws are affected in approximately 10%-20% of cases, with a strong predilection for the mandible. The maxilla is involved in only 1% of head and neck cases. When the jaws are involved, lesions of LCH may mimic periapical pathology as seen in patients requiring endodontic therapy or bone loss as seen in periodontal disease...
August 29, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822568/effects-of-lipopolysaccharide-on-the-proliferation-and-osteogenic-differentiation-of-stem-cells-from-the-apical-papilla
#6
Veera Lertchirakarn, Panuroot Aguilar
INTRODUCTION: Stem cells from the apical papilla (SCAPs) were suggested as the stem cell source in regenerative endodontic procedures. However, bone and/or cementum-like structure were observed in root canals. Lipopolysaccharide (LPS) in infected root canals might alter SCAPs' osteogenic differentiation pattern. The objectives of this study were to investigate the effects of LPS on SCAPs' proliferation and osteogenic differentiation. METHODS: The mesenchymal stem cell characteristics of SCAPs were confirmed...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822567/classification-and-clinical-management-of-retrograde-peri-implantitis-associated-with-apical-periodontitis-a-proposed-classification-system-and-case-report
#7
Nima D Sarmast, Howard H Wang, Ali S Sajadi, Nikola Angelov, Samuel O Dorn
Biological complications involving dental implants include peri-implant diseases such as peri-implant mucositis and peri-implantitis. The latter presents with progressive bone loss from the alveolar crest in a coronal apical direction. However, a separate disease entity termed retrograde peri-implantitis (RPI), which presents with progressive bone loss at the periapex of the implant, also exists and may be of particular interest to endodontists because it typically presents with periapical pathology of both the implant and adjacent tooth or at a site that previously housed an endodontically treated tooth...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822566/human-pulp-responses-to-partial-pulpotomy-treatment-with-theracal-as-compared-with-biodentine-and-proroot-mta-a-clinical-trial
#8
Hengameh Bakhtiar, Mohammad Hossein Nekoofar, Pouyan Aminishakib, Fatemeh Abedi, Fereshteh Naghi Moosavi, Ehsan Esnaashari, Arash Azizi, Samar Esmailian, Mohammad Reza Ellini, Vahid Mesgarzadeh, Mehdi Sezavar, Imad About
INTRODUCTION: Questions exist regarding the efficacy of resin-containing materials such as TheraCal directly applied on the pulp. This study sought to investigate the clinical efficacy of TheraCal as compared with Biodentine and ProRoot mineral trioxide aggregate (MTA) for partial pulpotomy. METHODS: In this clinical trial, partial pulpotomy was performed for 27 sound human maxillary and mandibular third molars scheduled for extraction. The teeth were randomly divided into 3 groups (n = 9) and underwent partial pulpotomy with TheraCal, Biodentine, and ProRoot MTA...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822565/the-influence-of-periodontal-status-on-endodontically-treated-teeth-9-year-survival-analysis
#9
Navid Khalighinejad, Anita Aminoshariae, James C Kulild, Jeannie Wang, Andre Mickel
INTRODUCTION: The aim of this study was to investigate the effect of periodontal status at the time of nonsurgical root canal treatment (NSRCT) on the survival rate of endodontically treated teeth (ETT). METHODS: In this retrospective investigation, molars that received NSRCT in an advanced specialty education program in endodontics from 2009 through 2017 were initially recruited. After the application of inclusion and exclusion criteria, 315 teeth were included in the study...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822564/regenerative-endodontic-treatment-or-mineral-trioxide-aggregate-apical-plug-in-teeth-with-necrotic-pulps-and-open-apices-a-systematic-review-and-meta-analysis
#10
REVIEW
Mahmoud Torabinejad, Ali Nosrat, Prashant Verma, Oyoyo Udochukwu
INTRODUCTION: A mineral trioxide aggregate (MTA) apical plug (MAP) and regenerative endodontic treatment (RET) have shown acceptable clinical outcomes. However, comparative studies are scarce. The aims of this study were to examine the level of evidence for both treatments, conduct a systematic review of the literature on MAP and RET, and run a meta-analysis on the survival and success rates of teeth treated with these procedures. METHODS: Electronic searches were performed in MEDLINE, Web of Science, and the Cochrane Library...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28818443/types-of-external-root-resorption-of-replanted-teeth-analysis-of-the-clinical-aspects-and-of-interleukin-4-gene-polymorphisms-involvement
#11
Liliane Roskamp, Paula Cristina Trevilatto, Cleber Machado Souza, Ulisses Xavier Silva Neto, Everdan Carneiro, Luiz Fernando Fariniuk, Vânia Portela Ditzel Westphalen
INTRODUCTION: The absence or presence of root resorption on the surface of a replanted tooth indicates an immune-inflammatory reaction. Recent research even suggests the participation of host predominant immunologic profile on types of resorptions detected on the root surface. Because interleukin 4 (IL-4) is an important anti-inflammatory cytokine, this study aimed to investigate the association of clinical variables and polymorphisms in IL4 with types of resorption of replanted teeth after 1 year of follow-up...
August 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28781092/properties-of-dental-pulp-derived-mesenchymal-stem-cells-and-the-effects-of-culture-conditions
#12
Nobuyuki Kawashima, Sonoko Noda, Mioko Yamamoto, Takashi Okiji
Dental pulp mesenchymal stem cells (DPMSCs) highly express mesenchymal stem cell markers and possess the potential to differentiate into neural cells, osteoblasts, adipocytes, and chondrocytes. Thus, DPMSCs are considered suitable for tissue regeneration. The colony isolation method has commonly been used to collect relatively large amounts of heterogeneous DPMSCs. Homogenous DPMSCs can be isolated by fluorescence-activated cell sorting using antibodies against mesenchymal stem cell markers, although this method yields a limited number of cells...
August 3, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28781091/dental-pulp-stem-cells-their-potential-in-reinnervation-and-angiogenesis-by-using-scaffolds
#13
Ivo Lambrichts, Ronald B Driesen, Yörg Dillen, Pascal Gervois, Jessica Ratajczak, Tim Vangansewinkel, Esther Wolfs, Annelies Bronckaers, Petra Hilkens
Dental pulp is a highly vascularized and innervated tissue containing a heterogeneous stem cell population with multilineage differentiation potential. Current endodontic treatments focus on the preservation of the pulp tissue and the regeneration of dental pulp after pathological insults. Human dental pulp stem cells (hDPSCs) are currently investigated as stem cell-based therapy for pulp regeneration and for peripheral nerve injury in which neurons and Schwann cells display limited regenerative capacity. We have developed a neuronal differentiation protocol for hDPSCs that requires neurosphere formation before neuronal maturation...
August 3, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778510/regenerative-endodontics-burning-questions
#14
Anthony J Smith, Paul R Cooper
Pulp regeneration and its clinical translation into regenerative endodontic procedures are receiving increasing research attention, leading to significant growth of the published scientific and clinical literature within these areas. Development of research strategies, which consider patient-, clinician-, and scientist-based outcomes, will allow greater focus on key research questions driving more rapid clinical translation. Three key areas of focus for these research questions should include cells, signaling, and infection/inflammation...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778509/recent-progress-in-translation-from-bench-to-a-pilot-clinical-study-on-total-pulp-regeneration
#15
Misako Nakashima, Koichiro Iohara
Based on a preclinical bench study in dogs, a pilot clinical study was completed. Dental pulp stem cell (DPSC) subsets were isolated by mobilization by granulocyte colony-stimulating factor and expanded in good manufacturing practice conditions. The safety and efficacy of their autologous transplantation for total pulp regeneration was assessed in 5 patients with irreversible pulpitis. The quality control of the DPSC subsets was ensured by the absence of contamination and karyotype aberrations, and positive expression of stem cell markers...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778508/mandibular-premolars-with-immature-roots-and-apical-periodontitis-lesions-treated-with-pulpotomy-report-of-3-cases
#16
Mitsuhiro Tsukiboshi, Domenico Ricucci, José F Siqueira
This is a case series of 3 immature permanent teeth with dens evaginatus, partial pulp necrosis, and apical periodontitis that were treated by calcium hydroxide pulpotomy. In all cases, follow-up examinations revealed that the radicular pulp vitality was preserved, periapical lesions were healed, and the root canal walls were narrowed by hard tissue deposition. Repair of the apical root differed from case to case; further apical root development occurred in 2 cases, but apical closure was apparent in all of them...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778507/potential-therapeutic-strategy-of-targeting-pulp-fibroblasts-in-dentin-pulp-regeneration
#17
Charlotte Jeanneau, Fionnuala T Lundy, Ikhlas A El Karim, Imad About
Fibroblasts represent the most abundant population within the dental pulp. Although other cell types such as odontoblasts and stem cells have been extensively investigated, very little attention was given to the fibroblasts, which have major roles in regulating the pulp biology and function under normal and pathologic conditions. Indeed, although pulp fibroblasts control the pulp vascularization and innervation under physiological conditions, these cells synthesize growth factors that enhance dentin-pulp regeneration, vascularization, and innervation...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778506/characterization-of-coronal-pulp-cells-and-radicular-pulp-cells-in-human-teeth
#18
Masaki Honda, Momoko Sato, Taku Toriumi
Dental pulp has garnered much attention as an easily accessible postnatal tissue source of high-quality mesenchymal stem cells (MSCs). Since the discovery of dental pulp stem cells (DPSCs) in permanent third molars, stem cells from human exfoliated deciduous teeth and from supernumerary teeth (mesiodentes) have been identified as a population distinct from DPSCs. Dental pulp is divided into 2 parts based on the developing stage: the coronal pulp and the radicular pulp. Root formation begins after the crown part is completed...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778505/lipoprotein-receptor-related-protein-6-signaling-is-necessary-for-vasculogenic-differentiation-of%C3%A2-human-dental-pulp-stem-cells
#19
Gleyce O Silva, Zhaocheng Zhang, Carolina Cucco, Min Oh, Carlos H R Camargo, Jacques E Nör
AIM: The aim of this study was to evaluate the effects of Wnt signaling through lipoprotein receptor-related protein 6 (LRP6) and Frizzled6 on the endothelial differentiation of dental pulp stem cells (DPSCs). METHODS: DPSCs were stably transduced with enhanced green fluorescent protein (EGFP)-tagged lentiviral vectors (short hairpin RNA-LRP6, short hairpin RNA-Frizzled6, or empty vector controls). We evaluated the effects of LRP6 and Frizzled6 on expression of endothelial markers and on capillary tube formation mediated by DPSCs induced with recombinant human Wnt1 (rhWnt1) and/or recombinant human vascular endothelial growth factor165 (rhVEGF165)...
August 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28778504/antimicrobial-efficacy-of-triple-antibiotic-eluting-polymer-nanofibers-against-multispecies-biofilm
#20
Maria T P Albuquerque, Juliana Nagata, Marco C Bottino
INTRODUCTION: The elimination of microbial flora in cases of immature permanent teeth with necrotic pulp is both key and a challenging goal for the long-term success of regenerative therapy. Recent research has focused on the development of cell-friendly intracanal drug delivery systems. This in vitro study aimed to investigate the antimicrobial action of 3-dimensional (3D) tubular-shaped triple antibiotic-eluting nanofibrous constructs against a multispecies biofilm on human dentin...
August 1, 2017: Journal of Endodontics
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