Results 91 to 100 of about 48,565 (249)

Assessment of impact of a control die on marginal fidelity of milled zirconia crown copings for finishing and polishing

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated and compared the marginal fidelity of milled zirconia copings before and after finishing and polishing with and without a control die. Materials and Methods This prospective multicenter in vitro trial involved two methods regularly used in two clinics for hybrid and full‐digital workflows.
Marwan Al Akkad   +5 more
wiley   +1 more source

Crystal Structure of Zircon

open access: yes, 2021
Ideal crystal structure of zircon ...
Kathryn Hobart (11472352)
core   +1 more source

Surface roughness, stainability, and translucency of an additively manufactured interim resin reinforced with a commercially available ceramic composite concentrate after coffee thermal cycling

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To compare the surface roughness (Ra), stainability, and translucency of a ceramic composite concentrate‐reinforced interim resin with its corresponding non‐reinforced formulation and with a ceramic‐filled resin indicated for definitive use after coffee thermal cycling.
Mustafa Borga Donmez   +5 more
wiley   +1 more source

Zircon

open access: yesSouthern Spaces, 2016
Robert Morgan reads the poem "Zircon" in Zirconia, North Carolina, recalling his uncles' experience of digging the crystalline mineral and pondering its ability to clock the long register of time.
openaire   +2 more sources

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

open access: yesJournal 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   +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

open access: yesJournal 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   +4 more
wiley   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato   +2 more
wiley   +1 more source

Ti-in-zircon temperatures and 48Ti (ppm) for each unit, surfaces and complete LVC zircon.

open access: yes, 2014
Ti-in-zircon temperatures and 48Ti (ppm) for each unit, surfaces and complete LVC zircon. All temperatures calculated using a(Si) = 1.0, a(Ti) = 0.6 with methods from [46].Ti-in-zircon temperatures and 48Ti (ppm) for each unit, surfaces and complete LVC ...
Michael A. Clynne (668786)   +1 more
core   +1 more source

Metamict zircon from Mozambique [PDF]

open access: yes, 1985
Metamict zircon from granite pegmatites of Zambézia, Mozambique has been studied by annealing, microprobe, X-ray diffraction, DT and TG analysis, and IR spectroscopy. The specimens are contaminated by epitaxially intergrown xenotime.
R. Törnroos
core   +1 more source

Downcurrent variation in submarine channel‐fill architecture from the shelf to upper slope

open access: yesSedimentology, EarlyView.
ABSTRACT The transition between the shelf and the upper slope is often considered an area of sediment bypass, where steeper gradients increase flow velocities and maintain particles in suspension. In addition to transferring sediments into deeper basins, upper‐slope areas can also host channelised submarine deposits.
Moreno Pizzutto   +6 more
wiley   +1 more source

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