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Maria V Cicinelli, Adriano Carnevali, Alessandro Rabiolo, Lea Querques, Ilaria Zucchiatti, Vincenzo Scorcia, Francesco Bandello, Giuseppe Querques
PURPOSE: To describe macular-foveal capillaries (MFC) by means of optical coherence tomography angiography and to identify the clinical spectrum of this angiographic feature. METHODS: Patients with MFC presenting at the Medical Retina & Imaging Unit of the Department of Ophthalmology, University Vita-Salute San Raffaele in Milan were recruited. Patients underwent a complete ophthalmologic examination that included slit-lamp examination, fundus examination, measurement of best-corrected visual acuity, fundus autofluorescence, and spectral-domain optical coherence tomography (Spectralis HRA + OCT; Heidelberg Engineering, Heidelberg, Germany)...
July 12, 2016: Retina
Selen Esin Yoldaş, Mehmet Bani, Didem Atabek, Haluk Bodur
INTRODUCTION: Tricalcium silicate cements can be used for pulp capping, pulpotomies, apical barrier formation in teeth with open apices, repair of root perforations, regenerative endodontics, and root canal filling. The aim of this study was to evaluate and compare the discoloration potential of 3 different tricalcium cements using a bovine tooth model. METHODS: Forty bovine anterior teeth have been used for the study. Crowns separated from the roots were randomly divided into 4 groups: the BioAggregate (IBC, Vancouver, Canada) group, the Biodentine (Septodont, Saint Maur des Fosses, France) group, the mineral trioxide aggregate Angelus (Angelus, Londrina, PR, Brazil) group, and the only blood group...
October 21, 2016: Journal of Endodontics
Isil Cekic-Nagas, Gulfem Ergun, Ferhan Egilmez, Pekka Kalevi Vallittu, Lippo Veli Juhana Lassila
PURPOSE: The aim of this study was to evaluate the effects of hydrofluoric acid treatment on bond strength of resin cements to three different types of ceramic/glass containing CAD-CAM block composite materials. METHODS: CAD-CAM block materials of polymer infiltrated (Vita Enamic), resin nanoceramic (Lava Ultimate) and nanoceramic (Cerasmart) with a thickness of 1.5mm were randomly divided into two groups according to the surface treatment performed. In Group 1, specimens were wet-ground with silicon carbide abrasive papers up to no...
March 10, 2016: Journal of Prosthodontic Research
Evelise M Souza, Jan De Munck, Pong Pongprueksa, Annelies Van Ende, Bart Van Meerbeek
OBJECTIVES: To determine the interfacial fracture toughness (iFT) and micro-tensile strength (μTBS) of composite cements bonded to dentin. METHODS: Fifty feldspar ceramic blocks (Vita Mark II, Vita Zahnfabrik) were luted onto dentin using two self-adhesive (G-CEM LinkAce, GC; SpeedCEM, Ivoclar Vivadent), two self-etch (Multilink Primer & Multilink Automix, Ivoclar Vivadent; Scotchbond Universal & RelyX Ultimate, 3 M ESPE), and one etch-and-rinse (Excite F DSC & Variolink II, Ivoclar Vivadent) composite cement (n=10)...
October 19, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
Maria Bonsignore, Nunzia Andolfi, Enza Maria Quinci, Anselmo Madeddu, Francesco Tisano, Vincenzo Ingallinella, Maria Castorina, Mario Sprovieri
: OBIETTIVI: valutare e quantificare l'esposizione umana al mercurio (Hg) ed esplorare i fattori chiave che influenzano la contaminazione nelle popolazioni residenti in prossimità della Rada di Augusta, un'area a elevato rischio ambientale a causa degli effetti degli sversamenti incontrollati di Hg da parte di uno dei più grandi impianti cloro-soda d'Europa. DISEGNO: un campione di residenti nei comuni di Augusta, Priolo e Melilli (Sicilia orientale) è stato selezionato per lo studio di biomonitoraggio umano...
September 2016: Epidemiologia e Prevenzione
Carlo Signorelli, Anna Odone, Daniela Bianco, Natalia Di Vivo, Francesco Bevere
Il dato dell'Organizzazione per la cooperazione e lo sviluppo economico (OCSE) del 2012, che indicava l'Italia come il Paese con la più bassa spesa in prevenzione sanitaria, ha dato lo spunto per una raccolta sistematica e un'analisi critica dei flussi disponibili sulla spesa per le attività di prevenzione in Italia. Le statistiche correnti di spesa sanitaria sono raccolte centralmente dall'Agenzia nazionale per i servizi sanitari regionali (Agenas) attraverso i modelli di rilevazione dei costi dei livelli essenziali di assistenza (LEA) delle aziende USL...
September 2016: Epidemiologia e Prevenzione
Vita Wonoputri, Cindy Gunawan, Sanly Liu, Nicolas Barraud, Lachlan Hartley Yee, May Lim, Rose Amal
In this study, we developed a poly(vinyl chloride) (PVC)-solvent casted mixed metal copper and iron complexes capable of catalytic generation of the antibiofilm nitric oxide (NO) from endogenous nitrite. In the absence of additional reducing agent, we demonstrated that the presence of iron complex facilitates a redox cycling, converting the copper(II) complex to active copper(I) species, which catalyzes the generation of NO from nitrite. Assessed by protein assay and surface coverage analyses, the presence of the mixed metal complexes in systems containing water industry-relevant nitrite-producing nitrifying biofilms was shown to result in a 'non-toxic mode' of biofilm suppression, while confining the bacterial growth to the free-floating planktonic phase...
October 19, 2016: ACS Applied Materials & Interfaces
Cecília C Café-Mendes, Luana L Righi, Jamile Calil-Silveira, Maria Tereza Nunes, Fernando Abdulkader
In international surveys, Brazilian students have been consistently ranking low in science. Continuing education for secondary school teachers is certainly a way to change this situation. To update teachers and provide teaching and learning experiences for graduate students, our department organized a "Winter Course in Physiology" where schoolteachers had the opportunity to attend lectures that were offered by graduate students and participate in discussions on teaching and learning strategies and their applicability, considering different schools and student age groups...
December 2016: Advances in Physiology Education
Vidhya Parameswaran, S Anilkumar, S Lylajam, C Rajesh, Vivek Narayan
BACKGROUND AND OBJECTIVES: This in vitro study compared the shade matching abilities of an intraoral spectrophotometer and the conventional visual method using two shade guides. The results of previous investigations between color perceived by human observers and color assessed by instruments have been inconclusive. The objectives were to determine accuracies and interrater agreement of both methods and effectiveness of two shade guides with either method. METHODS: In the visual method, 10 examiners with normal color vision matched target control shade tabs taken from the two shade guides (VITAPAN Classical™ and VITAPAN 3D Master™) with other full sets of the respective shade guides...
October 2016: Journal of Indian Prosthodontic Society
Lidia Pino, Cristina Italiano, Antonio Vita, Concetto Fabiano, Vincenzo Recupero
Sorbents for CO2 capture have been prepared by wet impregnation of a commercial active carbon (Ketjen-black, Akzo Nobel) with two CO2-philic compounds, polyethylenimine (PEI) and tetraethylenepentamine (TEPA), respectively. The effects of amine amount (from 10 to 70wt.%), CO2 concentration in the feed, sorption temperature and gas hourly space velocity on the CO2 capture performance have been investigated. The sorption capacity has been evaluated using the breakthrough method, with a fixed bed reactor equipped with on line gas chromatograph...
October 2016: Journal of Environmental Sciences (China)
John V Thomas, Rupan Sanyal, Janis P O'Malley, Satinder P Singh, Desiree E Morgan, Cheri L Canon
The academic educator's portfolio is a collection of materials that document academic performance and achievements, supplementing the curriculum vitae, in order to showcase a faculty member's most significant accomplishments. A decade ago, a survey of medical schools revealed frustration in the nonuniform methods of measuring faculty's medical education productivity. A proposed solution was the use of an academic educator's portfolio. In the academic medical community, compiling an academic portfolio is always a challenge because teaching has never been confined to the traditional classroom setting and often involves active participation of the medical student, resident, or fellow in the ongoing care of the patient...
October 11, 2016: Academic Radiology
Tasha R Wyatt, Kelli Braun, Lance Evans, Alexis Rossi, Paul M Wallach, Lara M Stepleman
INTRODUCTION: In institutional assessments of faculty, scholarly activity is often cited as a deficiency. Faculty lack the training and resources needed to produce peer-reviewed, quality scholarship. Although a variety of formats have been suggested and used to fill this void, fellowships are a commonly used format to foster educational leaders within institutions. In 2010, the Educational Innovation Institute at the Medical College of Georgia created an educational research fellowship to address this need...
October 13, 2016: Perspectives on Medical Education
Carmine D'Aniello, Maria G Vitale, Azzurra Farnesi, Lorenzo Calvetti, Maria M Laterza, Carla Cavaliere, Chiara Della Pepa, Vincenza Conteduca, Anna Crispo, Ferdinando De Vita, Francesco Grillone, Enrico Ricevuto, Michele De Tursi, Rocco De Vivo, Marilena Di Napoli, Sabrina C Cecere, Gelsomina Iovane, Alfonso Amore, Raffaele Piscitelli, Giuseppe Quarto, Salvatore Pisconti, Gennaro Ciliberto, Piera Maiolino, Paolo Muto, Sisto Perdonà, Massimiliano Berretta, Emanuele Naglieri, Luca Galli, Giacomo Cartenì, Ugo De Giorgi, Sandro Pignata, Gaetano Facchini, Sabrina Rossetti
Axitinib is an oral angiogenesis inhibitor, currently approved for treatment of metastatic renal cell carcinoma (mRCC) after failure of prior treatment with Sunitinib or cytokine. The present study is an Italian Multi-Institutional Retrospective Analysis that evaluated the outcomes of Axitinib, in second-line treatment of mRCC. The medical records of 62 patients treated with Axitinib, were retrospectively reviewed. The Progression Free Survival (PFS), the Overall Survival (OS), the Objective Response Rate (ORR), the Disease Control Rate (DCR), and the safety profile of axitinib and sunitinib-axitinib sequence, were the primary endpoint...
2016: Frontiers in Pharmacology
Abhishek Singh, Abhishek Nagpal, Salil Pawah, Chetan Pathak, Gaurav Issar, Pankaj Sharma
INTRODUCTION: In an attempt to minimize wear damage to the enamel of antagonist teeth, new low and medium fusing ceramic materials have been developed. Manufacturers usually claim that these ceramics are wear-friendly because of their lower hardness, lower concentrations of crystal phase, and smaller crystal sizes. This study aimed to quantitatively analyze the wear strength of various commercially available dental porcelain with tooth enamel as well as the surface hardness of these dental porcelain...
September 1, 2016: Journal of Contemporary Dental Practice
Márcia Borba, Maico D de Araújo, Karen A Fukushima, Humberto N Yoshimura, Jason A Griggs, Álvaro Della Bona, Paulo F Cesar
OBJECTIVE: To evaluate the effect of two aging methods (mechanical cycling and autoclave) on the mechanical behavior of veneer and framework ceramic specimens with different configurations (monolithic, two and three-layers). METHODS: Three ceramics used as framework for fixed dental prostheses (YZ-Vita In-Ceram YZ; IZ-Vita In-Ceram Zirconia; AL-Vita In-Ceram AL) and two veneering porcelains (VM7 and VM9) were studied. Bar-shaped specimens were produced in three different designs: monolithic, two layers (porcelain-framework) and three layers (porcelain-framework-porcelain)...
October 7, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
Judith Schwenter, Fredy Schmidli, Roland Weiger, Jens Fischer
Aim of this study was to investigate the mechanism of adhesive bonding to the polymer-infiltrated ceramic VITA Enamic [VE]. Shear bond strength was measured with three resin composite cements: RelyX Unicem 2 Automix, Clearfil SA and Variolink II on polished surfaces of VE and its components silicate ceramic [SC] and polymer [PM] (n=12). Further, the effect of etching VE with 5% HF for 15-240 s and the application of silane coupling agents was analyzed in a screening test (n=6). Shear bond strength measurements were performed after 24 h of water storage at 37°C...
2016: Dental Materials Journal
Murat Alkurt, Zeynep Yeşil Duymus, Mustafa Gundogdu
The aim of study was to evaluate the effects of multiple firings on the microstructures of zirconia and two ceramics. Vita VM9 (VMZ) and Cerabien ZR (C-Z) ceramics on a zirconia framework and zirconia without veneering ceramic (WO-Z) were evaluated. Firing methods included firing two, five, and ten times (n=10). The effects of multiple firings on the surface hardness of the materials were evaluated using a Vickers hardness (HV) tester. Data were analyzed by two-way ANOVA and Tukey's test (α=0.05). After firing five and ten times, the hardness of VM-Z and C-Z increased significantly (p<0...
2016: Dental Materials Journal
N R Carlos, E C Bridi, Flb Amaral, Fmg França, C P Turssi, R T Basting
The purpose of this study was to evaluate bleaching methods containing hydrogen peroxide (HP) or carbamide peroxide (CP), dispensed in customized or prefilled trays, in terms of color change, tooth sensitivity, gingival irritation, acceptance, and comfort. Seventy-five volunteers were randomly selected and distributed according to the whitening agent (n=25): 10% HP dispensed in prefilled trays (Opalescence Go 10%) and 9.5% HP (Pola Day) and 10% CP both delivered in customized trays (Opalescence PF 10%). HP was applied for 30 min/d for 14 days (d), and CP for 8 h/d for 14 days...
October 10, 2016: Operative Dentistry
M Carrabba, A Vichi, G Vultaggio, S Pallari, R Paravina, M Ferrari
OBJECTIVES: To evaluate surface roughness and gloss of feldspathic ceramic blocks for chairside CAD/CAM systems before and after finishing and polishing. METHODS: VITA Mark II ceramic blocks for the CEREC CAD/CAM system were cut perpendicularly in order to obtain a total of 70 specimens (14 × 18 × 3 mm). The flat surface was roughened using a grinder/polisher with dry 120-grit silicone-carbide paper. Surface roughness and gloss were measured using a digital profilometer (Ra) and a glossmeter (GU), respectively...
October 10, 2016: Operative Dentistry
Federico Vita, Cosimo Taiti, Antonio Pompeiano, Zuguang Gu, Emilio Lo Presti, Larisa Whitney, Michele Monti, Giuseppe Di Miceli, Dario Giambalvo, Paolo Ruisi, Lorenzo Guglielminetti, Stefano Mancuso
In this paper volatile organic compounds (VOCs) from durum wheat cultivars and landraces were analyzed using PTR-TOF-MS. The aim was to characterize the VOC's profile of the wholemeal flour and of the kernel to find out if any VOCs were specific to varieties and sample matrices. The VOC data is accompanied by SDS-PAGE analyses of the storage proteins (gliadins and glutenins). Statistical analyses was carried out both on the signals obtained by MS and on the protein profiles. The difference between the VOC profile of two cultivars or two preparations of the same sample - matrices, in this case kernel vs wholemeal flour - can be very subtle; the high resolution of PTR-TOF-MS - down to levels as low as pptv - made it possible to recognize these differences...
October 6, 2016: Scientific Reports
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