Results 121 to 130 of about 244,851 (211)

Effect of grinding with diamond-disc and -bur on the mechanical behavior of a Y-TZP ceramic

, 2014
This study compared the effects of grinding on the surface micromorphology, phase transformation (t -> m), biaxial flexural strength and structural reliability (Weibull analysis) of a Y-TZP (Lava) ceramic using diamond-discs and -burs.
Rocha, G. C., Cesar, P. F., Amaral, Marina [UNESP], Valandro, L. F., Simoneti, R., Amaral, Marina, Pereira, G. K. R.   +6 more
core   +1 more source

Adjustment of CAD–CAM crowns with and without a 3D‐printed model: Comparative study of marginal fit

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated and compared the marginal fit of CAD–CAM zirconia crown copings with and without a 3D‐printed control model. Materials and Methods This prospective in vitro trial involved 30 zirconia crown copings made from the same STL file. These were divided into two groups.
Marwan Al Akkad, Bedirhan Savas Yigit, Iva Voborna, Vaclav Prokupek, Oluwafunmibi Fasanya, Thomas Salinas, Radek Mounajjed   +6 more
wiley   +1 more source

Does treatment‐induced surface roughness of 3 mol% yttria‐stabilized tetragonal zirconia polycrystals influence the wear of opposing restorative materials? An in vitro study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to investigate whether different surface treatments applied to 3 mol% yttria‐stabilized tetragonal zirconia polycrystals (3Y‐TZP), with comparable mean roughness (Ra) values, result in comparable values of additional surface roughness parameters, and to evaluate the influence of zirconia surface topography on vertical ...
Aline Stieper, Sebastian Wille, Matthias Kern, Maximiliane Amelie Schlenz, Hans‐Jürgen Wenz   +4 more
wiley   +1 more source

Nanocrystalline diamond

, 2011
Diamond properties are significantly affected by crystallite size. High surface to volume fractions result in enhanced disorder, sp2 bonding, hydrogen content and scattering of electrons and phonons.
Williams, Oliver Aneurin, O.A. Williams, Williams, O.A.   +2 more
core   +1 more source

Effects of high‐speed sintering on the translucency and color of dental zirconia with different shades and yttria contents

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the effects of high‐speed sintering on the translucency and color of various yttria‐stabilized zirconia (YSZ) compositions and identified factors influencing these properties to improve clinical predictability. Materials and Methods A total of 144 disc‐shaped specimens fabricated from 3YSZ, 4YSZ, and 5YSZ pucks in ...
Zidu Zeng, Nupur Patel, Yijing Su, Yu Zhang   +3 more
wiley   +1 more source

3D assessment of the marginal and internal gap and fracture load of ceramic surveyed inlays designed for removable partial denture support: An in vitro comparative study

Journal of Prosthodontics, EarlyView.
Abstract Purpose To assess the internal and marginal gaps and the fracture load of different machinable ceramics for an inlay acting as a support for a removable partial denture. Materials and Methods Sixty extracted human teeth (first maxillary premolar) were collected (n = 10 for each group).
Mohammed M. Gad, Amr A. Mahrous, Shorooq K. Almajhad, Amjaad M. Almarzoogi, Majd A. Alotaibi, Haidar Alalawi, Ahmad M. Al‐Thobity, Passent Ellakany, Shaimaa M. Fouda, Moamen A. Abdalla, Nadim Z. Baba, Fahad A. Al‐Harbi   +11 more
wiley   +1 more source

Diamond based nanostructures for electronic applications [PDF]

, 2010
Research in the area of CVD diamond thin films has increased significantly during the last decades to the point where single crystal diamond is now commercially available.
Tumilty, N.J.
core  

Effect of different cariostatic agents on the surface roughness and color change of CAD–CAM‐milled restorative materials: An in vitro comparative study

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the influence of different cariostatic agents: 38% silver diamine fluoride (SDF), 38% SDF + potassium iodide (RS), and nano silver fluoride (NSF) compared with distilled water (control), on the surface roughness and color change of CAD–CAM‐milled restorative materials: nanoceramic resin (NR), feldspathic ceramic (FC), and ...
Vitória Mendes Souza e Melo, Emanuel Ewerton Mendonça Vasconcelos, Jacksuel Azevedo Melo, Gabriela Queiroz de Melo Monteiro, Fernanda Donida Ortigoza, André Galembeck, Luís Felipe Espíndola‐Castro   +6 more
wiley   +1 more source

Clinical performance of ultratranslucent monolithic zirconia posterior crowns compared with lithium disilicate crowns: A pilot, randomized, double‐blind, controlled clinical trial

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate, through a pilot, randomized, double‐blind, controlled clinical trial, the clinical performance of ultratranslucent monolithic zirconia (UTZr) compared to lithium disilicate (LD) posterior crowns after 24 months of follow‐up.
Larissa Mendonça Miranda, Isabelle Helena Gurgel de Carvalho, Lidya Nara Marques de Araújo, Mutlu Özcan, Rodrigo Othávio de Assunção e Souza   +4 more
wiley   +1 more source

The effect of finishing and polishing systems on surface roughness, microhardness and microleakage of a nanohybrid composite

, 2012
The aim of this study is to examine the effect of different finishing and polishing systems on the surface roughness, microhardness and microleakage of a nano-hybrid composite.
Eden E., Cogulu D., Attin T.
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