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Journal of Endodontics

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https://www.readbyqxmd.com/read/28343932/fracture-incidence-of-waveone-and-reciproc-files-during-root-canal-preparation-of-up-to-3-posterior-teeth-a-prospective-clinical-study
#1
Clóvis Stephano Pereira Bueno, Daniel Pinto de Oliveira, Rina Andrea Pelegrine, Carlos Eduardo Fontana, Daniel Guimarães Pedro Rocha, Carlos Eduardo da Silveira Bueno
INTRODUCTION: Reciprocating instruments were developed to improve and simplify the preparation of the root canal system by allowing greater centralization of the canal and requiring a shorter learning curve. Despite the risk of instrument separation, using a reciprocating instrument in more than 1 case is a relatively common clinical practice. The aim of this study was to evaluate the fracture resistance of Reciproc (R25; VDW, Munich, Germany) and WaveOne (Primary; Dentsply Maillefer, Ballaigues, Switzerland) instruments according to the number of uses during the preparation of root canals in up to 3 posterior teeth...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343931/coronal-and-intraradicular-appearances-affect-radiographic-perception-of-the-periapical-region
#2
Julie W Strong, Karl F Woodmansey, John A Khademi, John F Hatton
INTRODUCTION: The influence of the radiographic appearances of the coronal and intraradicular areas on periapical radiographic interpretation has been minimally evaluated in dentistry and endodontics. The purpose of this study was to evaluate the effects that the coronal and intraradicular radiographic appearance has on endodontists' radiographic interpretations of periapical areas. METHODS: In a split-group study design using an online survey format, 2 pairs of digital periapical radiographic images were evaluated by 2 groups (A and B) of endodontist readers for the presence of a periapical finding...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343930/cost-effectiveness-of-different-post-retained-restorations
#3
Falk Schwendicke, Michael Stolpe
OBJECTIVES: Dentists can choose between metal and fiber post systems to provide post-retained restorations. The risk of tooth loss and other complications differs between different post systems, as do the initial treatment costs. We aimed to assess the cost-effectiveness of (1) cast metal (MC), (2) preformed metal (MP), (3) glass fiber (GF), and (4) carbon fiber (CF) post-retained restorations. METHODS: A mixed public-private payer's perspective within German healthcare was taken...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343929/cytotoxicity-of-guttaflow-bioseal-guttaflow2-mta-fillapex-and-ah-plus-on-human-periodontal-ligament-stem-cells
#4
Mar Collado-González, Christopher J Tomás-Catalá, Ricardo E Oñate-Sánchez, José M Moraleda, Francisco J Rodríguez-Lozano
INTRODUCTION: The aim of the present study was to evaluate the in vitro cytotoxicity of endodontic sealers (GuttaFlow Bioseal, GuttaFlow2, and MTA Fillapex) on human periodontal ligament stem cells (hPDLSCs). As a reference, AH Plus was compared with the more recent endodontic sealers regarding cell viability and cell attachment. METHODS: Biological testing was carried out in vitro on hPDLSCs. Cell viability assay was performed by using eluates from each endodontic sealer...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343928/endodontics-endodontic-retreatment-and-apical-surgery-versus-tooth-extraction-and-implant-placement-a-systematic-review
#5
REVIEW
Anna Chércoles-Ruiz, Alba Sánchez-Torres, Cosme Gay-Escoda
INTRODUCTION: The aim of this systematic review was to answer the following clinical question: Which is the best treatment option for a pulpally involved tooth? METHODS: An electronic search was conducted in the Cochrane, PubMed (MEDLINE), and ScienceDirect databases between December 2015 and February 2016. A manual search was also performed. The inclusion criteria were randomized clinical trials, prospective or retrospective cohort studies, and cross-sectional studies performed on humans with at least 1 year of follow-up and published within the last 10 years...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343927/palatal-radicular-groove-morphology-of-the-maxillary-incisors-a-case-series-report
#6
Xuelian Tan, Lan Zhang, Wei Zhou, Yan Li, Jiali Ning, Xi Chen, Dongzhe Song, Xuedong Zhou, Dingming Huang
INTRODUCTION: Teeth with a palatal radicular groove are challenging to diagnose, treat, and save. We classified this condition using cone-beam computed tomographic (CBCT) cross-sectional configurations combined with radiographic and morphologic observations during an intentional replantation procedure to identify and analyze the characteristics of palatal radicular grooves comprehensively as a reference for diagnosis, treatment planning, and prognosis evaluation of this condition. METHODS: Eight cases with palatal radicular grooves present in permanent maxillary incisors were investigated by radiography and CBCT imaging before intentional replantation...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343926/cobalt-chloride-enhances-the-stemness-of-human-dental-pulp-cells
#7
Kantaporn Laksana, Sireerat Sooampon, Prasit Pavasant, Wannakorn Sriarj
INTRODUCTION: Hypoxia is a factor in controlling stem cell stemness. We investigated if cobalt chloride (CoCl2), a chemical agent that mimics hypoxia in vitro, affected human dental pulp cell (hDPC) stemness by examining cell proliferation, stem cell marker expression, and osteogenic differentiation. METHODS: hDPCs were cultured with or without 25 or 50 μmol/L CoCl2. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to determine cell proliferation...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343925/influence-of-alveolar-bone-loss-and-cement-layer-thickness-on-the-biomechanical-behavior-of-endodontically-treated-maxillary-incisors-a-3-dimensional-finite-element-analysis
#8
Amanda Maria de Oliveira Dal Piva, João Paulo Mendes Tribst, Rodrigo Othávio de Assunção E Souza, Alexandre Luiz Souto Borges
INTRODUCTION: In order to understand the mechanical behavior of a weakened incisor, this study aimed to evaluate the stress distribution caused by different alveolar bone heights and cement layer thickness. METHODS: A finite element analysis was conducted for this investigation. An intact maxillary central incisor was initially modeled, and the bone of the models was modified in order to simulate 4 levels of bone height: BL0 (no bone loss), BL1 (1/3 bone loss), BL2 (1/2 bone loss), and BL3 (2/3 bone loss)...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28325578/first-evidence-for-regeneration-of-the-periodontium-to-mineral-trioxide-aggregate-in-human-teeth
#9
Andreas Bartols, Eleni Roussa, Winfried Walther, Christof E Dörfer
INTRODUCTION: The aim of this study was to elucidate whether the use of mineral trioxide aggregate (MTA) in endodontic therapy in human teeth leads to the same regeneration of the apical tissues as observed in animals. METHODS: Four human teeth were identified in a policlinic that had been treated endodontically with MTA and had to be extracted for other reasons than just endodontic failure. All teeth were processed for histologic and one for immunohistochemical analyses to analyze the histologic response of the periapical structure to the former treatment with MTA...
March 18, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28320541/comparative-evaluation-of-premedication-with-ketorolac-and-prednisolone-on-postendodontic-pain-a-double-blind-randomized-controlled-trial
#10
R Praveen, Sophia Thakur, M Kirthiga
INTRODUCTION: The present clinical trial aimed to evaluate and compare the effect of a single pretreatment dose of ketorolac (20 mg), prednisolone (30 mg), and placebo on postendodontic pain in patients undergoing endodontic therapy for irreversible pulpitis or pulpal necrosis using a visual analog scale. METHODS: Ninety-two subjects were included in the present trial; 46 subjects had a pulpal diagnosis of irreversible pulpitis, and the other 46 had pulpal necrosis...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28320540/effect-of-using-different-vehicles-on-the-physicochemical-antimicrobial-and-biological-properties-of-white-mineral-trioxide-aggregate
#11
Bruno Cavalini Cavenago, Aldo Enrique Del Carpio-Perochena, Ronald Ordinola-Zapata, Carlos Estrela, Gustavo Pompermaier Garlet, Mario Tanomaru-Filho, Paulo Henrique Weckwerth, Flaviana Bombarda de Andrade, Marco Antonio Hungaro Duarte
INTRODUCTION: This study evaluated the physicochemical, antimicrobial, and biological properties of white mineral trioxide aggregate (MTA) mixed with aqueous and propylene glycol extracts of Arctium lappa L. and Casearia sylvestris Sw. METHODS: The setting-time test was performed according to American Society for Testing and Materials 266/2008 and flowability by American National Standards Institute/American Dental Association 57/2012 standard specifications. The following parameters were assessed: volumetric change by micro-computed tomography; pH level and calcium ion release measured after 3 hours and 1, 3, 7, and 15 days; antimicrobial effect by the dentin decontamination method with intratubular Enterococcus faecalis viability, verified by using confocal laser scanning microscopy; and biocompatibility by histologic-morphometric analyses of inflammatory infiltrate at subcutaneous implant sites after 15, 30, and 60 days...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28320539/cytotoxicity-biocompatibility-and-biomineralization-of-the-new-high-plasticity-mta-material
#12
Luciano Tavares Angelo Cintra, Francine Benetti, Índia Olinta de Azevedo Queiroz, Juliana Maria de Araújo Lopes, Sandra Helena Penha de Oliveira, Gustavo Sivieri Araújo, João Eduardo Gomes-Filho
INTRODUCTION: Mineral trioxide aggregate (MTA) has excellent biological properties, but its handling properties have been criticized for both ProRoot MTA (Tulsa Dental Products, Tulsa, OK) and white MTA-Angelus (MTA-Ang; Angelus Indústria de Produtos Odontológicos S/A, Londrina, PR, Brazil). Angelus MTA HP (high plasticity) (Angelus Indústria de Produtos Odontológicos S/A) has been introduced recently. Considering the importance of biological properties of materials that will be in contact with the tissues, this study evaluated the cytotoxicity, biocompatibility, and biomineralization of MTA HP compared with white MTA-Ang...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28320538/bioactive-molecule-delivery-systems-for-dentin-pulp-tissue-engineering
#13
REVIEW
Suja Shrestha, Anil Kishen
INTRODUCTION: Regenerative endodontic procedures use bioactive molecules (BMs), which are active signaling molecules that initiate and maintain cell responses and interactions. When applied in a bolus form, they may undergo rapid diffusion and denaturation resulting in failure to induce the desired effects on target cells. METHODS: The controlled release of BMs from a biomaterial carrier is expected to enhance and accelerate functional tissue engineering during regenerative endodontic procedures...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28320537/a-randomized-clinical-trial-comparing-2-ibuprofen-formulations-in-patients-with-acute-odontogenic-pain
#14
Tanjit Taggar, Di Wu, Asma A Khan
INTRODUCTION: Ibuprofen sodium dihydrate, a new formulation of ibuprofen, was introduced with the claim of faster onset of analgesia. Most of the data on this new ibuprofen formulation are drawn from studies using the oral surgery model. Because this model differs significantly from the endodontic pain model, we conducted a study comparing ibuprofen sodium dihydrate with conventional ibuprofen acid in endodontic pain patients. METHODS: This randomized, double-masked study recruited subjects experiencing moderate to severe pain from a tooth diagnosed with symptomatic irreversible pulpitis and symptomatic apical periodontitis (n = 41)...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292605/outcomes-of-endodontic-microsurgery-using-a-microscope-and-mineral-trioxide-aggregate-a-prospective-cohort-study
#15
Zu-Hua Wang, Ming-Ming Zhang, Ji Wang, Lan Jiang, Yu-Hong Liang
INTRODUCTION: The aim of this study was to investigate the outcome of endodontic microsurgery and analyze the prognostic factors. METHODS: Our prospective cohort study included 98 teeth in 81 patients. An endodontist performed all surgical procedures using endodontic microsurgical approaches. The treated teeth were recalled and examined clinically and radiographically at least 1 year after surgical treatment. The outcome was determined based on clinical and radiographic results...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292604/anti-osteoclastogenesis-of-mineral-trioxide-aggregate-through-inhibition-of-the-autophagic-pathway
#16
Xue Cheng, Lingxin Zhu, Jie Zhang, Jingjing Yu, Shan Liu, Fengyuan Lv, Ying Lin, Guojing Liu, Bin Peng
INTRODUCTION: Mineral trioxide aggregate (MTA) regulates bone remodeling, particularly osteoclast differentiation. However, intracellular mechanisms underlying the anti-osteoclastogenesis of MTA remain unclear. This study aimed to evaluate the potential alterations of autophagic pathway during anti-osteoclastogenic effects by MTA in vitro and investigate their underlying mechanisms. METHODS: Osteoclast precursors were treated with MTA extracts containing the receptor activator of nuclear factor-kappa B ligand (RANKL)...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292603/push-out-bond-strength-of-fast-setting-mineral-trioxide-aggregate-and-pozzolan-based-cements-endocem-mta-and-endocem-zr
#17
Emmanuel João Nogueira Leal Silva, Nancy Kudsi Carvalho, Marta Reis da Costa Labanca Guberman, Marina Prado, Plinio Mendes Senna, Erick M Souza, Gustavo De-Deus
INTRODUCTION: The present study investigated the root canal dentin bond strength of 2 newly developed fast-setting mineral trioxide aggregate (MTA) and pozzolan-based cements: ENDOCEM MTA (Maruchi, Wonju, Korea) and ENDOCEM Zr (Maruchi). White MTA (Angelus, Londrina, Brazil) was used as the reference material for comparison. METHODS: Root slices (1 mm ± 0.1 mm) were obtained from the middle third of 15 maxillary incisors previously selected. Three canal-like holes (0...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292602/investigation-of-human-dental-pulp-cells-on-a-potential-injectable-poly-lactic-co-glycolic-acid-microsphere-scaffold
#18
Huiru Zou, Guanhua Wang, Fang Song, Xudong Shi
INTRODUCTION: Poly(lactic-co-glycolic acid) (PLGA) has been extensively explored in the tissue engineering field with good biocompatibility and biodegradability. PLGA microspheres' injectable potency makes it highly desirable in dentin-pulp complex regeneration. Therefore, we investigated the cell adhesion, proliferation, odontogenic differentiation, and matrix mineralization of human dental pulp cells (HDPCs) on a PLGA microsphere scaffold. We hypothesized that this scaffold might be suitable for dentin-pulp complex regeneration...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292601/a-survey-of-cone-beam-computed-tomographic-use-among-endodontic-practitioners-in-the-united-states
#19
Frank C Setzer, Nathan Hinckley, Meetu R Kohli, Bekir Karabucak
INTRODUCTION: Cone-beam computed tomographic (CBCT) imaging is an emerging technology for clinical endodontic practice. The aim of this study was to investigate the acceptance, accessibility, and usage of CBCT imaging among American Association of Endodontists members in the United States by means of an online survey. METHODS: An invitation to participate in a web-based survey was sent to 3076 members of the American Association of Endodontists. The survey consisted of 8 questions on demographics, access to CBCT machines, field of view (FOV), frequency of use for particular applications, and reasons in case CBCT was not used...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28292600/efficacy-of-different-cone-beam-computed-tomographic-protocols-in-the-identification-of-mesiobuccal-canals-of-maxillary-first-molars-a-tomographic-and-ex%C3%A2-vivo-study
#20
Jéssica Vavassori de Freitas, Flares Baratto-Filho, Beatriz Serrato Coelho, Flávia Sens Fagundes Tomazinho, Bruno Monguilhott Crozeta, Manoel Damião de Sousa Neto, Marilisa Carneiro Leão Gabardo
INTRODUCTION: Complementary methods of anatomic diagnosis, including cone-beam computed tomographic (CBCT) imaging, may be useful in the diagnosis of mesiobuccal (MB) canals of maxillary molars. METHODS: Thirty-five maxillary first molars were subjected to ex vivo analysis and 4 CBCT protocols: i-CAT Classic (Imaging Sciences International, Hatfield, PA) (ICC group), i-CAT Next Generation (Imaging Sciences International) (ICN group), PreXion 3D (PreXion, San Mateo, CA) (16...
March 11, 2017: Journal of Endodontics
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