Results 31 to 40 of about 132,293 (299)

Effects of Number of Firing Cycles on Color Stability and Surface Roughness in Two Different Zirconia-Based Ceramic Systems [PDF]

open access: yesJournal of Mashhad Dental School, 2022
Introduction: Color matching between a zirconia-based ceramic restoration and a natural tooth is a common clinical challenge. This in-vitro study aimed to assess the effects of the number of firing cycles and zirconia core translucency on the color ...
Farshad Askari, Rashin Giti
doaj   +1 more source

Construction of Nanostructured Glass-Zirconia to Improve the Interface Stability of Dental Bilayer Zirconia

open access: yesNanomaterials, 2023
Bilayer zirconia restoration is one of the most commonly used restorations in dental practice, but the high frequency of the cohesive/adhesive fracture of veneered porcelain is still a problem.
Ming Zhou   +8 more
doaj   +1 more source

Translucency evaluation of an ultra-translucent monolithic zirconia and a super translucent multilayer zirconia: a pilot study on the thickness effect

open access: yesAnnals of Medicine, 2021
Introduction The increasing application of zirconia as an aesthetic material has led to an evolution with improvement on its optical properties [1]. Nowadays, zirconia presents a compatible translucency with natural teeth.
Ana Filipa Pereira   +5 more
doaj   +1 more source

Early Stage Cavitation Erosion within Ceramics: An Experimental Investigation [PDF]

open access: yes, 2009
Six ceramic material types were considered within an experimental investigation to identify the erosion damages mechanisms resulting from cavitation exposure.
Fatjo, Gonzalo   +3 more
core   +1 more source

How do the grains slide in fine-grained zirconia polycrystals at high temperature?

open access: yes, 2007
Degradation of mechanical properties of zirconia polycrystals is hardly discussed in terms of solution-precipitation grain-boundary sliding due to experimental controversies over imaging of intergranular amorphous phases at high and room temperatures ...
Gilbert Fantozzi   +7 more
core   +1 more source

Zirconia Ceramics

open access: yesActa Medica (Hradec Kralove, Czech Republic)
Zirconia ceramics have become popular among other dental ceramics thanks to their biological, mechanical, optical, and aesthetic properties. CAD/CAM (computer-aided design/ computer-aided manufacturing) technology improvement has played a vital role in the increased popularity of zirconia ceramics; easy computer manipulation significantly expanded the ...
Bedirhan Savas Yigit   +2 more
openaire   +3 more sources

Reusable Nanocatalyst: Zirconia and Sulfated Zirconia

open access: yesInternational Letters of Chemistry, Physics and Astronomy, 2014
1,5-benzodiazepines have been synthesized by Nano Zirconia and Nano Sulfated Zirconia in solvent free conditions. Synthesis was carried out by conventional as well as microwave method. Benzodiazepines were synthesized by reacting o-phenylenediamine and few ketones in the presence of catalytic amount of Nanoparticles.
Mitesh B. Gondaliya   +3 more
openaire   +1 more source

Femtosecond Laser Irradiation to Zirconia Prior to Calcium Phosphate Coating Enhances Osteointegration of Zirconia in Rabbits

open access: yesJournal of Functional Biomaterials
Calcium phosphate (CaP) coating of zirconia and zirconia-based implants is challenging, due to their chemical instability and susceptibility to thermal and mechanical impacts.
Hirotaka Mutsuzaki   +4 more
doaj   +1 more source

Differential Healing Patterns of Mucosal Seal on Zirconia and Titanium Implant

open access: yesFrontiers in Physiology, 2019
Zirconia implants have become an alternative to titanium implants due to several advantages. The zirconia implant is relatively esthetic and highly resistant to bacteria.
Dong-Joon Lee   +6 more
doaj   +1 more source

How could mouthwashes affect the color stability and translucency of various types of monolithic zirconia? An in-vitro study.

open access: yesPLoS ONE, 2023
ObjectivesThis study aimed to evaluate the color stability and translucency of various types of monolithic zirconia after immersion in chlorhexidine and Listerine mouthwashes.Materials and methodsThis experimental study was performed on 36 disk-shaped ...
Rashin Giti, Reza Jebal
doaj   +1 more source

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