keyword
MENU ▼
Read by QxMD icon Read
search

ename

keyword
https://www.readbyqxmd.com/read/28806259/serendipitous-discovery-of-isolated-gastric-metastases-from-adenocarcinoma-of-the-lung-on-staging-18f-fdg-pet-ct
#1
Punit Sharma, Amit Dutt Dwary, Enam Murshed Khan
Gastric metastasis from lung cancer is rare. We here present the case of a 59-year-old man with lung adenocarcinoma where isolated gastric metastases were discovered on staging F-FDG PET-CT, confirmed with endoscopy and biopsy.
August 12, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28804719/effect-of-2-bleaching-agents-with-a-content-of-high-concentrated-hydrogen-peroxide-on-stained-2-cad-cam-blocks-and-a-nanohybrid-composite-resin-an-afm-evaluation
#2
İzgen Karakaya, Esra Cengiz
The aim of this study was to evaluate color stability of 3 restorative materials, discoloration ability of different solutions, efficacy of 2 office bleaching agents, and surface roughness and topography. Sixty specimens for Clearfil Majesty Esthetic (CME), Lava Ultimate (LU), and Vita Enamic (VE) were prepared. They were immersed into 3 staining solutions for 2 weeks and then they were bleached. According to the measured L(⁎), a(⁎), and b(⁎) parameters described by CIELAB system, color changes (ΔE00), translucency parameters (TP), whiteness index values (W(⁎)), and changes in closeness to pure white (ΔW(⁎)) were calculated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28781072/mechanical-and-optical-properties-of-monolithic-cad-cam-restorative-materials
#3
Nazmiye Sen, Yesim Olcer Us
STATEMENT OF PROBLEM: Achieving natural tooth appearance with sufficient mechanical strength is one of the most challenging issues of computer-assisted design and computer-assisted manufacturing (CAD-CAM) materials. However, limited evidence is available regarding their optical and mechanical properties for proper and evidence-based material selection in clinical practice. PURPOSE: The purpose of this in vitro study was to assess and compare the translucency and biaxial flexural strength of 5 monolithic CAD-CAM restorative materials...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28772602/wear-behavior-of-ceramic-cad-cam-crowns-and-natural-antagonists
#4
Ella A Naumova, Stephan Schneider, Wolfgang H Arnold, Andree Piwowarczyk
OBJECTIVE: Evaluation of wear behavior of computer-aided design/computer-aided manufacturing (CAD/CAM) crowns from various restorative materials and natural antagonists. METHOD: Full CAD/CAM crowns fabricated with nanoceramic resin (Lava Ultimate (LU)), a glass ceramic in a resin interpenetrating matrix (Vita Enamic (VE)) and a lithium silicate reinforced ceramic enriched with zirconia (Vita Suprinity (VS)) were cemented on human molars. The crown and antagonists were subjected to simulated chewing...
February 28, 2017: Materials
https://www.readbyqxmd.com/read/28727998/enrichment-of-endogenous-fractalkine-and-anti-inflammatory-cells-via-aptamer-functionalized-hydrogels
#5
Syed Faaiz Enam, Jack R Krieger, Tarun Saxena, Brian E Watts, Claire E Olingy, Edward A Botchwey, Ravi V Bellamkonda
Early recruitment of non-classical monocytes and their macrophage derivatives is associated with augmented tissue repair and improved integration of biomaterial constructs. A promising therapeutic approach to recruit these subpopulations is by elevating local concentrations of chemoattractants such as fractalkine (FKN, CX3CL1). However, delivering recombinant or purified proteins is not ideal due to their short half-lives, suboptimal efficacy, immunogenic potential, batch variabilities, and cost. Here we report an approach to enrich endogenous FKN, obviating the need for delivery of exogenous proteins...
October 2017: Biomaterials
https://www.readbyqxmd.com/read/28689915/a-3-year-clinical-evaluation-of-endodontically-treated-posterior-teeth-restored-with-two-different-materials-using-the-cerec-ac-chair-side-system
#6
Ting Lu, Ling Peng, Fu Xiong, Xiao-Yu Lin, Ping Zhang, Zhi-Ting Lin, Bu-Ling Wu
STATEMENT OF PROBLEM: The introduction of polymer-infiltrated ceramic network (PICN) materials may provide more options for dentists in restoring short clinical crowns and extensively damaged posterior teeth, but clinical data for their performance are lacking. PURPOSE: The purpose of this clinical study was to compare the 3-year performance and survival rates of PICN material with those of conservative ceramic onlay restorations for endodontically treated posterior teeth using the CEREC AC chair-side system...
July 7, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28665295/broadband-monochromatic-and-quasi-monochromatic-x-ray-propagation-in-multi-z-media-for-imaging-and-diagnostics
#7
Maximillian Westphal, Sara N Lim, Sultana N Nahar, Enam Chowdhury, Anil Kumar Pradhan
With the advent of monochromatic and quasi-monochromatic x-ray sources, we explore their potential with computational and experimental studies on propagation through a combination of low and high-Z (atomic number) media for applications to imaging and detection. The multi-purpose code GEANT4 and a new code PHOTX are employed in numerical simulations, and a variety of x-ray sources are considered: conventional broadband devices with well-known spectra, quasi-monochromatic laser driven sources, and monochromatic synchrotron x-rays...
June 30, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28651905/self-etching-ceramic-primer-versus-hydrofluoric-acid-etching-etching-efficacy-and-bonding-performance
#8
Hatem M El-Damanhoury, Maria D Gaintantzopoulou
AIM: This study assessed the effect of pretreatment of hybrid and glass ceramics using a self-etching primer on the shear bond strength (SBS) and surface topography, in comparison to pretreatment with hydrofluoric acid and silane. METHODS: 40 rectangular discs from each ceramic material (IPS e.max CAD;EM, Vita Mark II;VM, Vita Enamic;VE), were equally divided (n=10) and assigned to one of four surface pretreatment methods; etching with 4.8% hydrofluoric acid followed by Monobond plus (HFMP), Monobond etch & prime (Ivoclar Vivadent) (MEP), No treatment (NT) as negative control and Monobond plus (Ivoclar Vivadent) with no etching (MP) as positive control...
June 23, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28647224/does-artificial-aging-affect-mechanical-properties-of-cad-cam-composite-materials
#9
Ferhan Egilmez, Gulfem Ergun, Isil Cekic-Nagas, Pekka K Vallittu, Lippo V J Lassila
PURPOSE: The purpose of this study was to determine the flexural strength and Weibull characteristics of different CAD/CAM materials after different in vitro aging conditions. METHODS: The specimens were randomly assigned to one of the six in vitro aging conditions: (1) water storage (37°C, 3 weeks), (2) boiling water (24h), (3) hydrochloric acid exposure (pH: 1.2, 24h), (4) autoclave treatment (134°C, 200kPa, 12h), (5) thermal cycling (5000 times, 5-55°C), (6) cyclic loading (100N, 50,000 cycles)...
June 21, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28633093/fracture-resistance-of-ceramic-and-polymer-based-occlusal-veneer-restorations
#10
Majed Al-Akhali, Mohamed Sad Chaar, Adham Elsayed, Abdulaziz Samran, Matthias Kern
OBJECTIVES: The purpose of this in vitro study was to evaluate the influence of thermodynamic loading on the durability and fracture resistance behavior of occlusal veneers fabricated from different biomedical dental CAD/CAM materials. METHODS: The occlusal surfaces of 64 extracted premolars were prepared in the enamel layer and restored with occlusal veneers with a fissure/cusp thickness of 0.5/0.8mm made from four different dental CAD/CAM materials: group LD lithium disilicate (e...
June 13, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28567055/surface-characteristics-and-biofilm-development-on-selected-dental-ceramic-materials
#11
Kyoung H Kim, Carolina Loch, J Neil Waddell, Geoffrey Tompkins, Donald Schwass
BACKGROUND: Intraoral adjustment and polishing of dental ceramics often affect their surface characteristics, promoting increased roughness and consequent biofilm growth. This study correlated surface roughness to biofilm development with four commercially available ceramic materials. METHODS: Four ceramic materials (Vita Enamic®, Lava™ Ultimate, Vitablocs Mark II, and Wieland Reflex®) were prepared as per manufacturer instructions. Seventeen specimens of each material were adjusted and polished to simulate clinical intraoral procedures and another seventeen remained unaltered...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28552287/mechanical-properties-and-internal-fit-of-4-cad-cam-block-materials
#12
Alexis Goujat, Hazem Abouelleil, Pierre Colon, Christophe Jeannin, Nelly Pradelle, Dominique Seux, Brigitte Grosgogeat
STATEMENT OF PROBLEM: Recent polymer-based computer-assisted design and computer-assisted manufacturing (CAD-CAM) materials have been commercialized for inlay restorations, a polymer-infiltrated ceramic-network (PICN) and composite resin nanoceramics. Little independent evidence regarding their mechanical properties exists. Internal adaptation is an important factor for the clinical success and longevity of a restoration, and data concerning this parameter for inlays made with these blocks are scarce...
May 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28527394/elucidation-of-penetration-enhancement-mechanism-of-emu-oil-using-ftir-microspectroscopy-at-emira-laboratory-of-sesame-synchrotron
#13
Randa S H Mansour, Alsayed A Sallam, Imad I Hamdan, Enam A Khalil, Ibraheem Yousef
It has been proposed that Emu oil possesses skin permeation-enhancing effect. This study aimed to address its possible penetration enhancement mechanism(s) using IR microscopy, in accordance with LPP theory. The penetration of Emu oil through the layers of human skin was accomplished by monitoring oil-IR characteristic feature at 3006cm(-1). The unsaturated components of Emu oil accumulated at about 270μm depth of skin surface. The interaction of Emu oil with lipid and protein constituents of SC was investigated in comparison with a commonly used enhancer, IPM...
May 12, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28502717/preferential-accumulation-of-gold-nanorods-into-human-skin-hair-follicles-effect-of-nanoparticle-surface-chemistry
#14
Nouf N Mahmoud, Alaaldin M Alkilany, Dörthe Dietrich, Uwe Karst, Amal G Al-Bakri, Enam A Khalil
HYPOTHESIS: Gold nanoparticles (GNP) are considered an ideal model to help understanding the nano-skin interface. The surface functionality of gold nanorods (GNR) is expected to influence the uptake of nanoparticles into specific targets of skin such as hair follicles or dermis. Hence, it should be possible to modify the surface chemistry of GNP to achieve more targeted and safe skin therapy. EXPERIMENTS: GNR functionalized with various surface ligands (neutral, anionic, cationic, and hydrophobic) were evaluated for their accumulation into hair follicles of human skin sheets using ex-vivo setup...
October 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28461047/influence-of-cement-type-and-ceramic-primer-on-retention-of-polymer-infiltrated-ceramic-crowns-to-a-one-piece-zirconia-implant
#15
Nadja Rohr, Stefan Brunner, Sabrina Märtin, Jens Fischer
STATEMENT OF PROBLEM: The best procedure for cementing a restoration to zirconia implants has not yet been established. PURPOSE: The purpose of this in vitro study was to measure the retention of polymer-infiltrated ceramic crowns to zirconia 1-piece implants using a wide range of cements. The effect of ceramic primer treatment on the retention force was also recorded. The retention results were correlated with the shear bond strength of the cement to zirconia and the indirect tensile strength of the cements to better understand the retention mechanism...
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28400359/unmet-need-for-surgery-in-south-asia
#16
REVIEW
Sanjay Nagral, Maharra Hussain, Sarder A Nayeem, Ranjan Dias, S Ather Enam, Samiran Nundy
No abstract text is available yet for this article.
April 11, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28395292/genes-involved-in-the-enamel-development-are-associated-with-calcium-and-phosphorus-level-in-saliva
#17
Erika Calvano Küchler, Giovana Daniela Pecharki, Myrella Lescio Castro, Junia Ramos, Fernando Barbosa, João Armando Brancher, Alexandre Rezende Vieira, Raquel Fernanda Gerlach, Paula Cristina Trevilatto
Saliva components play a crucial role in the integrity of the dental enamel and in caries susceptibility. The saliva characteristics are controlled by many factors, including genetic factors. Therefore, this study aimed to evaluate the association between the genetic variations in genes expressed in enamel development with calcium and phosphorus levels in saliva. We collected 276 unrelated 12-year-old children from private and public schools. Saliva was collected for DNA extraction from oral cells and for measurement of calcium and phosphorus...
2017: Caries Research
https://www.readbyqxmd.com/read/28395167/the-association-of-enamelin-lactoferrin-and-tumour-necrosis-factor-alpha-gene-polymorphisms-with-high-caries-susceptibility-in-chinese-children-under-4-years-old
#18
Mengchen Wang, Man Qin, Bin Xia
OBJECTIVE: The aim of this study was to assess the role of ENAM rs3796703, LTF rs1126478, and TNF-α rs1800629 in high caries susceptibility. DESIGN: The present case-control study included 1005 unrelated children under 4 years old: 505 with severe caries (dmft index ≥4) and 500 who were caries-free (dmft index=0 and without white-spot lesions). Questionnaires were obtained from parents and gardians about the children's diet and oral behavioural habits. All the children received dental examinations and oral swabbing for human genomic DNA collection...
August 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28382465/significance-of-genetic-variations-in-developmental-enamel-defects-of-primary-dentition-in-polish-children
#19
Karolina Gerreth, Katarzyna Zaorska, Maciej Zabel, Michal Nowicki, Maria Borysewicz-Lewicka
OBJECTIVES: The aim of the study was to reveal the association between developmental defects of enamel (DDE) and single nucleotide polymorphisms (SNPs) in the ENAM, AMELX, AMBN, TUFT1, and TFIP11 genes. MATERIAL AND METHODS: The molecular analysis was carried out in 52 children, aged 10-42 months, from four nursery schools situated in the region of Poznan, Poland (26 individuals with hypomineralization and/or hypoplasia of enamel - "cases" and 26 unaffected children - "controls"), chosen from 262 individuals that had prior dental examination...
April 5, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28349958/gene-expression-based-biomarkers-for-discriminating-early-and-late-stage-of-clear-cell-renal-cancer
#20
Sherry Bhalla, Kumardeep Chaudhary, Ritesh Kumar, Manika Sehgal, Harpreet Kaur, Suresh Sharma, Gajendra P S Raghava
In this study, an attempt has been made to identify expression-based gene biomarkers that can discriminate early and late stage of clear cell renal cell carcinoma (ccRCC) patients. We have analyzed the gene expression of 523 samples to identify genes that are differentially expressed in the early and late stage of ccRCC. First, a threshold-based method has been developed, which attained a maximum accuracy of 71.12% with ROC 0.67 using single gene NR3C2. To improve the performance of threshold-based method, we combined two or more genes and achieved maximum accuracy of 70...
March 28, 2017: Scientific Reports
keyword
keyword
89446
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"