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International Endodontic Journal

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https://www.readbyqxmd.com/read/27917513/torsional-and-bending-resistance-of-waveone-gold-reciproc-and-twisted-file-adaptive-instruments
#1
S E Elsaka, A M Elnaghy, A E Badr
AIM: To compare the torsional and bending resistance of WaveOne Gold (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA), Reciproc (VDW, Munich, Germany) and Twisted File Adaptive (Axis/SybronEndo, Orange, CA, USA) instruments. METHODOLOGY: Torsional strength of WaveOne Gold primary size 25, .07 taper, Reciproc size 25, .08 taper and Twisted File Adaptive M-L1 size 25, .08 taper was measured by fastening the apical 3 mm of the instrument firmly and applying a constant rotation at 2 rpm to the instrument using a torsiometer...
December 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27917512/a-re-audit-of-the-technical-quality-of-undergraduate-root-canal-treatment-after-the-introduction-of-new-technology-and-teaching-practices
#2
A Donnelly, D Coffey, H F Duncan
AIM: To revaluate through re-audit the technical quality of undergraduate non-surgical root canal treatment (RCTx) in a dental teaching hospital as a result of recommended changes to teaching practices. METHODOLOGY: The technical quality of undergraduate RCTx was evaluated radiographically after educational changes and the mandatory introduction of new technologies (nickel-titanium files, apex locators, greater-taper gutta-percha points) in 182 root canals. Evaluation was based on 4 criteria; presence of voids, root canal filling termination (0-2mm of radiographic apex), all roots filled and the prepared canal contained the original anatomy...
December 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27917509/effect-of-solvents-on-apically-extruded-debris-and-irrigant-during-root-canal-retreatment-using-reciprocating-instruments
#3
C Keskin, E Sariyilmaz, O Sariyilmaz
AIM: To evaluate the effect of several solvents on the weight of apically extruded debris and irrigant during retreatment using a novel agar gel model. METHODS: Orange oil, turpentine oil and chloroform were used as solvents. Eighty single straight rooted extracted human mandibular premolar teeth with a single root canal were divided into four groups (n=20). All specimens were root canal filled and weighed prior to their insertion I a prepared 1.5% agar gel model...
December 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27898180/apical-negative-pressure-irrigation-versus-syringe-irrigation-a-systematic-review-of-cleaning-and-disinfection-of-the-root-canal-system
#4
REVIEW
E Konstantinidi, Z Psimma, L E Chávez de Paz, C Boutsioukis
The aim of this study was to systematically review and critically analyse the published data on the treatment outcome (primary outcome) and on the cleaning and disinfection of root canals (secondary outcomes) achieved by negative pressure irrigation as compared to syringe irrigation. An electronic search was conducted in EMBASE, LILACS, Pubmed, SciELO, Scopus, and Web of Knowledge using both free-text keywords and controlled vocabulary. Additional studies were sought through hand-searching of endodontic journals and of the relevant chapters of endodontic textbooks...
November 28, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27883205/root-and-root-canal-morphology-of-the-permanent-dentition-in-a-caucasian-population-a-cbct-study
#5
J N R Martins, D Marques, A Mata, J Caramês
AIM: To investigate in vivo the number of roots, the root canal system configuration and the root canal splitting and merging levels in the permanent dentition of a Caucasian population. METHODOLOGY: A total of 11,892 teeth were inspected in Cone Beam Computed Tomography examinations that were collected from a pre-existing database. The number of roots was identified, and canal configurations were classified according to Vertucci's classification and its supplemental configurations...
November 24, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27870102/failure-of-single-unit-restorations-on-root-filled-posterior-teeth-a-systematic-review
#6
REVIEW
K I Afrashtehfar, M Ahmadi, E Emami, S Abi-Nader, F Tamimi
This systematic review investigated the failure rate of conventional single-unit restorations in root filled posterior permanent teeth. Two reviewers independently applied eligibility criteria, extracted data and assessed the quality of the evidence of each included study according to The Cochrane Collaboration's procedures for randomized control trials (RCTs) and the STROBE criteria for observational studies. The MEDLINE (via Ovid), EMBASE (via Ovid), Cochrane Oral Health Group Trials Register and CENTRAL (via Cochrane Library) databases were searched electronically (January 1993 to week 1, February 2015)...
November 21, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27864974/nlrp3-inflammasome-may-regulate-inflammatory-response-of-human-periodontal-ligament-fibroblasts-in-an-apoptosis-associated-speck-like-protein-containing-a-card-asc-dependent-manner
#7
W L Lu, D Z Song, J L Yue, T T Wang, X D Zhou, P Zhang, L Zhang, D M Huang
AIM: To explore the role of NLRP3 (NACHT [nucleotide-binding oligomerization], LRR [leucine-rich repeat] and PYD [pyrin domain] domains-containing protein 3) inflammasome in the inflammatory response of human periodontal ligament fibroblasts (HPDLFs). METHODOLOGY: The expression of NLRP3 and apoptosis-associated speck-like protein containing a CARD (ASC) in inflammatory periapical tissues and HPDLFs was examined by immunohistochemical and immunofluorescent staining...
November 19, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27891629/capping-carious-exposures-in-adults-a-randomized-controlled-trial-investigating-mineral-trioxide-aggregate-versus-calcium-hydroxide
#8
R Kundzina, L Stangvaltaite, H M Eriksen, E Kerosuo
AIM: The aim of this multicentre, parallel-group randomized clinical trial was to compare the effectiveness of mineral trioxide aggregate (MTA) and a conventional calcium hydroxide liner (CH) as direct pulp capping materials in adult molars with carious pulpal exposure. METHODOLOGY: Seventy adults aged 18-55 years were randomly allocated to two parallel arms: MTA (White ProRoot, Dentsply, Tulsa Dental, Tulsa, OK, USA; n = 33) and CH (Dycal(®) , Dentsply DeTrey GmbH, Konstanz, Germany; n = 37)...
November 7, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27809348/apical-transportation-and-canal-straightening-with-different-continuously-tapered-rotary-file-systems-in-severely-curved-root-canals-f6-skytaper-and-oneshape-vs-mtwo
#9
S Bürklein, P G Jäger, E Schäfer
AIM: To compare the apical transportation and the canal straightening of three continuous tapered rotary NiTi systems (F6 SkyTaper (Komet/Brasseler, Lemgo, Germany), Mtwo (VDW, Munich, Germany), OneShape (Micro Méga, Besançon France)) in severely curved root canals. METHODOLOGY: A total of 60 root canals in extracted human teeth with angles of curvatures ranging between 25° and 35° and radii ranging between 4 and 9mm were divided into three groups (n=20). Based on radiographs taken prior to instrumentation, the groups were balanced with respect to the angle and the radius of canal curvature (P=1...
November 3, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27809342/effect-of-sonic-and-ultrasonic-activation-on-organic-tissue-dissolution-from-simulated-grooves-in-root-canals-using-sodium-hypochlorite-and-edta
#10
A J Conde, R Estevez, G Loroño, Ó Valencia de Pablo, G Rossi-Fedele, R Cisneros
AIM: To compare soft-tissue dissolution by sodium hypochlorite, with an EDTA intermediate rinse, with or without activation with passive ultrasonic activation (PUI) or sonic activation using the Endoactivator (EA) or Eddy tips (ED). METHODOLOGY: The root canals of eighty-three human maxillary central incisors were chemo-mechanically prepared and the teeth split. A standardized longitudinal intracanal groove was created in one of the root halves. Eighty-three porcine palatal mucosa samples were collected, adapted to fit into the grooves and weighed...
November 3, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27783428/new-curricular-design-in-biostatistics-to-prepare-residents-for-an-evidence-based-practice-and-life-long-learning-education-a-pilot-approach
#11
A Arias, O A Peters, I L Broyles
AIM: To develop, implement and evaluate an innovative curriculum in biostatistics in response to the needs of fostering critical thinking in graduate health care education for evidence-based practice and life-long learning education. METHODOLOGY: The curriculum was designed for first-year residents in a postgraduate endodontic program using a six-step approach to curriculum development to provide sufficient understanding to critically evaluate biomedical publications, to design the best research strategy to address a specific problem and to analyse data by appropriate statistical test selection...
October 26, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27775835/clinical-efficacy-of-edta-ultrasonic-activation-in-the-reduction-of-endotoxins-and-cultivable-bacteria
#12
D R Herrera, F C Martinho, A de-Jesus-Soares, A A Zaia, C C R Ferraz, J F A Almeida, B P F A Gomes
AIM: This clinical study was conducted to investigate the influence of 17% ethylenediaminetetraacetic acid (EDTA) ultrasonic activation after chemomechanical preparation (CMP) on eliminating/reducing oral bacterial lipopolysaccharides (known as endotoxins) and cultivable bacteria in teeth with pulp necrosis and apical periodontitis. METHODOLOGY: Samples were taken from 24 root canals at several clinical periods: S1 - before CMP; S2 - after CMP; S3 - after EDTA: G1 - with ultrasonic activation (n = 12) and G2 - without ultrasonic activation (n = 12)...
October 24, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27770435/a-scoping-review-of-root-canal-revascularization-relevant-aspects-for-clinical-success-and-tissue-formation
#13
REVIEW
M C M Conde, L A Chisini, R Sarkis-Onofre, H S Schuch, J E Nör, F F Demarco
The aim of this scoping study was to evaluate the survival rate and nature of tissue formed inside root canals of human immature permanent teeth with necrotic pulps (NIPT) under root canal revascularization (RCR). The search was performed in SciVerse Scopus®, PubMed/MEDLINE, Web of Science®, BIREME and in the grey literature up to November 2015. The keywords were selected using MeSH terms and DECs. Two independent reviewers scrutinized the records obtained considering specific inclusion criteria. The included studies were evaluated in accordance with a modified Arksey and O' Malley's framework...
October 22, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27770442/association-between-apical-periodontitis-and-cardiovascular-diseases-a-systematic-review-of-the-literature
#14
Y Berlin-Broner, M Febbraio, L Levin
A systematic review was conducted to assess the association between apical periodontitis (AP) and cardiovascular disease (CVD). Studies published from the earliest date available until September 2015 were retrieved from the Medline, PubMed and Embase databases. The included studies reported the results from observational studies and assessed the link between AP and CVD as confirmed by one of the following criteria: diagnosed coronary artery disease, angina pectoris, acute myocardial infarction, stroke, or mortality caused by cardiac pathology...
October 21, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27770436/effect-of-sodium-hypochlorite-and-saline-on-cyclic-fatigue-resistance-of-waveone-gold-and-reciproc-reciprocating-instruments
#15
A M Elnaghy, S E Elsaka
AIM: To compare the cyclic fatigue resistance of WaveOne Gold (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA) and Reciproc (VDW, Munich, Germany) reciprocating instruments during immersion in sodium hypochlorite (NaOCl) and saline solutions at body temperature. METHODOLOGY: A total of 180 new WaveOne Gold primary size 25, .07 taper, and Reciproc size 25, .08 taper were randomly divided into three groups: group 1: no immersion (control, air); group 2: immersion in saline at 37 ± 1 °C; and group 3: immersion in 5% NaOCl at 37 ± 1 °C...
October 21, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27716996/the-transcription-factor-camp-response-element-binding-protein-enhances-the-odonto-osteogenic-differentiation-of-stem-cells-from-the-apical-papilla
#16
Shengzhe S, Yongna Z, Song L, Yan L, Jing Z
AIM: To investigate the role of cAMP response element-binding protein (CREB) in the regulation of odonto/osteogenic differentiation of stem cells from the apical papilla (SCAPs). METHODOLOGY: SCAPs were obtained from human impacted third molars (n=15). Isolated SCAPs were transfected with CREB overexpressing/silenced lentivirus. Transfected cells were stained with alizarin red to investigate mineralized nodule formation. The expression of the mineralization-related genes alkaline phosphatase (ALP), collagen type I (Col I), runt-related transcription factor 2 (RUNX2), osterix (OSX), and osteocalcin (OCN), was determined by quantitative reverse transcription polymerase chain reaction (qRT-PCR)...
October 7, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27706822/efficiency-and-apical-extrusion-of-debris-a-comparative-ex%C3%A2-vivo-study-of-four-retreatment-techniques-in-severely-curved-root-canals
#17
I Kaşıkçı Bilgi, I Köseler, P Güneri, M Hülsmann, M K Çalışkan
AIM: To compare the amount of apically extruded debris and of remaining filling material during the removal of root canal filling material using three rotary NiTi retreatment instruments or Hedström files. METHODOLOGY: Ninety-six severely curved human molars of both jaws were selected. The root canals were prepared to size X2 (tip size 25, .06 taper) using the ProTaper Next system (Dentsply Sirona, Ballaigues, Switzerland), filled with gutta-percha and AH Plus sealer (Dentsply De Trey, Konstanz, Germany) and then randomly divided into four experimental groups (n = 24 each) with two subgroups of maxillary and mandibular teeth each...
October 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27696455/a-new-method-for-the-assessment-of-the-surface-topography-of-niti-rotary-instruments
#18
F Ferreira, I Barbosa, P Scelza, D Russano, J Neff, M Montagnana, M Zaccaro Scelza
AIM: To describe a new method for the assessment of nanoscale alterations in the surface topography of nickel-titanium endodontic instruments using a high-resolution optical method, and to verify the accuracy of the technique. METHODOLOGY: Noncontact three-dimensional optical profilometry was used to evaluate defects on a size 25, .08 taper reciprocating instrument (WaveOne(®) ), which was subjected to a cyclic fatigue test in a simulated root canal in a clear resin block...
October 1, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27689844/micro-ct-assessment-of-dentinal-micro-cracks-after-root-canal-filling-procedures
#19
G De-Deus, F G Belladonna, E J N L Silva, E M Souza, J C A Carvalhal, R Perez, R T Lopes, M A Versiani
AIM: To evaluate the frequency of dentinal micro-cracks after root canal filling procedures with GuttaCore (GC), cold lateral compaction (CLC) and warm vertical compaction (WVC) techniques in mandibular molars using micro-computed tomographic analysis. METHODOLOGY: Thirty mesial roots of mandibular molars, with a type II Vertucci's canal configuration, were prepared to working length with a Reciproc R40 instrument and randomly assigned to one of 3 experimental groups (n = 10), according to the technique used for root filling: GC, CLC or WVC...
September 30, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27689773/evaluation-of-root-maturation-after-revitalization-in-immature-permanent-teeth-with-nonvital-pulps-by-cone-beam-computed-tomography-and-conventional-radiographs
#20
P Linsuwanont, P Sinpitaksakul, T Lertsakchai
AIM: To investigate the response of immature permanent teeth with nonvital pulps after revitalization procedures using cone beam computed tomography imaging and conventional radiograph. METHODOLOGY: Clinical records of patients who had undergone revitalization between 1997 and 2014 were collected. Seventeen patients attended the follow-up examination. Clinical examination and radiographic examination by means of CBCT imaging and conventional radiographs were conducted to evaluate treatment outcomes, especially the dimensional changes of the root and the pattern of root maturation...
September 30, 2016: International Endodontic Journal
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