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International Endodontic Journal

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https://www.readbyqxmd.com/read/28635100/a-new-system-for-classifying-accessory-canal-morphology
#1
REVIEW
H M A Ahmed, P Neelakantan, P M H Dummer
Thorough knowledge of the anatomical complexities of the root canal system has a direct impact on the effectiveness of canal preparation and filling, and is an essential prerequisite for successful root canal treatment. A wide range of complex variations in root canal anatomy exists, including root canal configuration type, developmental anomalies and more minor canal morphology such as accessory canals and apical deltas. Accessory canals and apical deltas have been associated with pulp disease, primary canal infection, canal reinfection and post-treatment disease...
June 21, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28631418/the-effects-of-biodentine-polycaprolactone-3d-scaffold-with-odontogenesis-properties-on-human-dental-pulp-cells
#2
C-C Ho, H-Y Fang, B Wang, T-H Huang, M-Y Shie
AIM: To determine the feasibility of using three-dimensional printed Biodentine/polycaprolactone composite scaffolds for orthopaedic and dental applications. The physicochemical properties and the odontogenic differentiation of human dental pulp cells (hDPCs) were investigated. METHODOLOGY: Biodentine was well-suspended in ethanol and dropped slowly into molten polycaprolactone with vigorous stirring. The Biodentine/polycaprolactone composite scaffolds were then fabricated into controlled macropore sizes and structures using an extrusion-based three-dimensional (3D) printer...
June 20, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28631388/the-efficacy-of-commercial-tooth-storage-media-for-maintaining-the-viability-of-human-periodontal-ligament-fibroblasts
#3
W Lee, S Stover, M Rasoulianboroujeni, K Sherman, F Fahimipour, E Dashtimoghadam, C Zito, H Jazayeri, L Tayebi
AIM: To evaluate Save-A-Tooth (SAT), EMT Toothsaver (EMT), and Hank's Balanced Salt Solution (HBSS) for their influence on the viability and proliferative capacity of human periodontal ligament fibroblast (HPDLF). METHODOLOGY: Primary HPDLFs were seeded on 96-well cell culture plates and exposed to SAT, EMT, HBSS and water (negative control) for 0.5, 1, 3, 6, 12 and 24 hours at room temperature (22°C). After each exposure time, cell viability was measured by quantifying adenosine triphosphate (ATP) using a luminescent dye...
June 20, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28617966/analysis-of-the-association-of-clinical-factors-and-il4-gene-polymorphisms-with-root-resorption-in-avulsed-teeth-after-1-year-of-replantation
#4
L Roskamp, P C Trevilatto, C M Souza, U X Silva Neto, E Carneiro, L F Fariniuk, V P D Westphalen
AIM: To investigate the association of clinical variables and polymorphisms (tag SNPs) in the interleukin 4 (IL4) gene, with the prognosis of avulsed and replanted teeth. METHODOLOGY: Ninety-four patients who suffered avulsion and had their teeth replanted and endodontically treated were included. Periapical radiographs were obtained soon after tooth replantation and after 1 year. For genotypic IL4 gene analysis, the DNA of the oral mucosa cells was collected, and polymorphisms investigated by Real Time-PCR...
June 15, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28568134/lysyl-oxidase-mediated-vegf-induced-differentiation-and-angiogenesis-in-human-dental-pulp-cells
#5
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/28560802/the-effect-of-preoperative-oral-administration-of-prednisolone-on-postoperative-pain-in-patients-with-symptomatic-irreversible-pulpitis-a-single-centre-randomized-controlled-trial
#6
A Elkhadem, K Ezzat, M Ramadan, S AbdelGhaffar, D Khamis, A Said, A Abdel-Mawgoud, A Mamdouh, M AbouZeid, S Amin
AIM: This single-centre randomized, double-blind, placebo-controlled clinical trial assessed the effect of preoperative, single, oral dose of prednisolone on postoperative pain and postoperative analgesic intake in patients with symptomatic, irreversible pulpitis in mandibular molars. METHODOLOGY: Four hundred participants, randomly assigned into two equal groups, received either 40mg prednisolone or placebo tablets 30min before single-visit root canal treatment...
May 31, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28543092/effect-of-ultrasonic-and-sonic-activation-of-root-canal-sealers-on-the-push-out-bond-strength-and-interfacial-adaptation-to-root-canal-dentine
#7
P E B Wiesse, R D Pereira, Y C T Silva-Sousa, C Estrela, M D Sousa-Neto, J D Pécora
AIM: To evaluate the effect of ultrasonic and sonic activation of two root canal sealers on interfacial adaptation and push-out bond strength (BS) to root canal dentine. METHODOLOGY: The root canals of seventy-eight roots of maxillary canines was prepared with Ni-Ti rotary instruments under irrigation with 2.5% NaOCl and 17% EDTA. Canals were filled by lateral condensation of gutta-percha and AH Plus (n=39) or MTA Fillapex (n=39). Three subgroups (n=13) were formed according to sealer activation: no activation (NA), sonic activation (SA, 20 s) and ultrasonic activation (US, 20 s)...
May 22, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28470953/mechanical-characteristics-of-counterfeit-reciproc-instruments-a-call-for-attention
#8
C S Rodrigues, V T L Vieira, H S Antunes, G De-Deus, C N Elias, E J L Moreira, E J N L Silva
AIM: To report here the main differences between the visual aspects of original and counterfeit Reciproc instruments, together with an evaluation of instrument bending resistance, cyclic fatigue, surface finish, Vickers microhardness, and chemical composition. METHODOLOGY: The visual aspects of original Reciproc R25 (VDW, Munich, Germany) and counterfeit Reciproc R25 instruments (claimed to be original, supposedly with dimensions similar to those of Reciproc R25 files, bought at www...
May 4, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28470859/zirconium-oxide-and-niobium-oxide-used-as-radiopacifiers-in-a-calcium-silicate-based-material-stimulate-fibroblast-proliferation-and-collagen-formation
#9
G F Silva, J M Guerreiro-Tanomaru, T S da Fonseca, M I B Bernardi, E Sasso-Cerri, M Tanomaru-Filho, P S Cerri
AIM: To evaluate the influence of the addition of microparticulate (micro) and nanoparticulate (nano) zirconium oxide (ZrO2 ) and niobium pentoxide (Nb2 O5 ) to a calcium silicate-based cement (CS) on the subcutaneous healing process in rats compared with MTA Angelus™. METHODOLOGY: In each rat, two polyethylene tubes filled with the following materials: (i) MTA; (ii) CS + ZrO2 micro; (iii) CS + ZrO2 nano; (iv) CS + Nb2 O5 micro or (v) CS + Nb2 O5 nano were implanted subcutaneously; empty polyethylene tubes were used in the Control group...
May 4, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28470849/influence-of-early-mineral-deposits-of-silicate-and-aluminate-based-cements-on-push-out-bond-strength-to-root-dentine
#10
S Silva do Carmo, F F P Néspoli, L Bachmann, C E S Miranda, L M S Castro-Raucci, I R Oliveira, W Raucci-Neto
AIM: To evaluate mineral trioxide aggregate (MTA), Biodentine, and several formulations of calcium aluminate cements (CACb) in terms of their ability to release calcium ions (Ca(2+) ) and form apatite-like precipitates after short-term immersion in phosphate-buffered saline (PBS) and its influence on the bond strength to the root-end cavity. METHODOLOGY: Ten samples of MTA, Biodentine, CACb, and calcium-enriched aluminate cement (CACb+) were placed in contact with PBS or deionized water for 14 days...
May 4, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28470747/effect-of-interrupted-motion-on-the-cyclic-fatigue-resistance-of-reciprocating-nickel-titanium-instruments
#11
C Keskin, U Inan, M Demiral
AIM: To compare the cyclic fatigue resistances of WaveOne Gold (Denstply Sirona, Ballaigues, Switzerland), WaveOne (Dentsply Sirona), and Reciproc (VDW, Munich, Germany) in interrupted reciprocation. METHODOLOGY: Three groups of 18 instruments each of WaveOne Gold Primary, WaveOne Primary, and Reciproc R25 were subjected to cyclic fatigue tests in reciprocation and interrupted reciprocation. The instruments in group 1 were tested in reciprocation, whereas in groups 2 and 3, reciprocation was interrupted for 1 s in every 5 s and 10 s, respectively...
May 4, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28467618/effectiveness-of-xp-endo-finisher-and-xp-endo-finisher-r-in-removing-root-filling-remnants-a-micro-ct-study
#12
E J N L Silva, F G Belladonna, A S Zuolo, E Rodrigues, I C Ehrhardt, E M Souza, G De-Deus
AIM: To evaluate the efficacy of filling material removal from oval-shaped canals after the use of supplementary files (XP-endo Finisher and XP-endo Finisher R) through micro-computed tomographic (micro-CT) analysis. METHODOLOGY: The root canals of twenty maxillary single-rooted teeth were prepared with Reciproc R25 files and filled with gutta-percha and AH Plus sealer using the continuous wave of condensation technique. The root canals were then retreated using Reciproc R25 and R40 instruments...
May 3, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28452115/properties-of-neomta-plus-and-mta-plus-cements-for-endodontics
#13
F Siboni, P Taddei, C Prati, M G Gandolfi
AIM: To test a novel calcium silicate cement mixed with a water-based gel (NoeMTA Plus) with regards to chemical-physical properties and apatite forming ability. METHODOLOGY: NeoMTA Plus (Avalon Biomed Inc. Bradenton, FL, USA; lot. 2014090301), and a commercial MTA-based material with similar properties (MTA Plus, Prevest Denpro Limited, Jammu, India; lot. 41001) were tested for ion-releasing ability, initial and final setting times, radiopacity, open and impervious porosity and apparent porosity, water sorption, weight loss, solubility, ability to nucleate calcium phosphates (CaP) after immersion in HBSS (Hank's Balance Salt Solution) by ESEM-EDX and Micro-Raman spectroscopy...
April 28, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439952/comparison-of-cytotoxicity-genotoxicity-and-immunological-inflammatory-biomarker-activity-of-several-endodontic-sealers-against-immortalized-human-pulp-cells
#14
F C Martinho, S E A Camargo, A M M Fernandes, M S Campos, R F Prado, C H R Camargo, M C Valera
AIM: To establish an SV40 T-Ag-transfected cell line of human pulp-derived cells in order to compare the cytotoxicity, genotoxicity and to investigate the activities of immunological biomarkers of several endodontic sealers. METHODOLOGY: Primary human pulp cells and transfected cells were cultured. Cell morphology and proliferation were analysed, and the expression of cell-specific gene transcripts and proteins was detected by RT-PCR and immunohistochemistry. Transfection of human pulp-derived cells resulted in an immortalized cell line retaining phenotypic characteristics from the primarily cells tested...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439929/the-roles-of-autophagy-and-hypoxia-in-human-inflammatory-periapical-lesions
#15
H Y Huang, W C Wang, P Y Lin, C P Huang, C Y Chen, Y K Chen
AIM: To determine the expressions of hypoxia-related [hypoxia-inducible transcription factors (HIF)-1α, BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3) and phospho-adenosine monophosphate activated protein kinase (pAMPK)] and autophagy-related [microtubule-associated protein 1 light chain 3 (LC3), beclin-1 (BECN-1), autophagy-related gene (Atg)5-12, and p62] proteins in human inflammatory periapical lesions. METHODOLOGY: Fifteen samples of radicular cysts (RCs) and 21 periapical granulomas (PGs), combined with 17 healthy dental pulp tissues, were examined...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439928/effect-of-ultrasonic-activation-on-the-reduction-of-bacteria-and-endotoxins-in-root-canals-a-randomized-clinical-trial
#16
V C Nakamura, E T Pinheiro, L C Prado, A C Silveira, A P L Carvalho, M P A Mayer, G Gavini
AIM: This randomized clinical trial aimed to compare the effectiveness of ultrasonic activation with that of nonactivated irrigation on the removal of bacteria and endotoxin from root canals. METHODOLOGY: Fifty patients with necrotic pulps and asymptomatic apical periodontitis were randomly allocated into two groups according to the final irrigation protocol after root canal preparation: Group UI - ultrasonic irrigation (n = 25) and Group NI - needle irrigation (n = 25)...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439909/effect-of-thermally%C3%A2-deposited-siloxane-methacrylate-coating-on-bonding-to-glass-fibre-posts
#17
F P Silva, A L Faria-E-Silva, R R Moraes, A O Ogliari, G R Reis, A R F Oliveira, M S Menezes
AIM: To evaluate the alterations promoted by a thermally deposited siloxane-methacrylate coating on the surface of glass-fibre posts and its effect on the bond strength of resin-core materials to the posts. METHODOLOGY: Fibre post surfaces were treated with experimental thermally deposited siloxane-methacrylate coatings or clinically available treatments (i.e., hydrogen peroxide and methylene chloride); non-treated posts were used as controls. The contact angles formed between the post surface and the water/adhesive were measured with a tensiometer...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439906/regenerative-endodontic-treatment-of-perforated-internal-root-resorption-a-case-report
#18
M E Kaval, P Güneri, M K Çalışkan
AIM: To present the regenerative endodontic treatment procedure of a perforated internal root resorption case and its clinical and radiographic findings after 2 years. SUMMARY: A 14-year-old female patient was referred complaining of moderate pain associated with her maxillary left lateral incisor. After radiographic examination, a perforated internal resorption lesion in the middle third of tooth 22 was detected. Under local anaesthesia and rubber dam isolation, an access cavity was prepared and the root canal was shaped using K-files under copious irrigation with 1% NaOCl, 17% EDTA and distilled water...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28436043/european-society-of-endodontology-position-statement-the-use-of-antibiotics-in-endodontics
#19
REVIEW
J J Segura-Egea, K Gould, B Hakan Şen, P Jonasson, E Cotti, A Mazzoni, H Sunay, L Tjäderhane, P M H Dummer
This Position Statement represents a consensus of an expert committee convened by the European Society of Endodontology (ESE) on Antibiotics in Endodontics. The statement is based on current scientific evidence as well as the expertise of the committee. The goal is to provide dentists and other healthcare workers with evidence-based criteria for when to use antibiotics in the treatment of endodontic infections, traumatic injuries of the teeth, revascularisation procedures in immature teeth with pulp necrosis, and in prophylaxis for medically compromised patients...
April 24, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28390072/biocompatibility-and-mineralized-nodule-formation-of-neo-mta-plus-and-an-experimental-tricalcium-silicate-cement-containing-tantalum-oxide
#20
M Tanomaru-Filho, A S Andrade, E M Rodrigues, K S Viola, G Faria, J Camilleri, J M Guerreiro-Tanomaru
AIM: To evaluate the biocompatibility and mineralized nodule formation of an experimental tricalcium silicate cement with tantalum oxide (TSC/Ta2 O5 ) as radiopacifier, Neo MTA Plus (Avalon Biomed Inc., Bradenton, FL, USA) and MTA (Angelus, Londrina, PR, Brazil) on human osteoblast-like cells (Saos-2). METHODOLOGY: Biocompatibility was evaluated by 3-(4,5-dimethyl-thiazoyl)-2,5-diphenyl-tetrazolium bromide (MTT) and neutral red (NR) assays, after exposure of Saos-2 to cement extracts at 1 : 1, 1 : 2, 1 : 4 and 1 : 8 dilutions for 24 h...
April 8, 2017: International Endodontic Journal
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