Results 51 to 60 of about 9,390 (187)

Effects of Substructure Color and Restoration Thickness on the Final Color of Ultra‐Translucent Zirconia Ceramics

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer   +2 more
wiley   +1 more source

Does hybridized dentin affect bond strength of self-adhesive resin cement? [PDF]

open access: yes, 2016
Background: Evaluate the influence of different hybridization bonding techniques of a self-adhesive resin cement. Material and Methods: 30 human health molars were divided into six groups (n=10).
Andrade, Gustavo Henrique Barbosa de   +5 more
core   +1 more source

Marginal gap of printed, milled, and heat‐pressed two‐piece polyetheretherketone abutments before and after thermal cycling, and their pull‐off bond strength after thermal cycling

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the marginal gap of two‐piece polyetheretherketone (PEEK) abutments fabricated with different methods, before and after thermal cycling, while also focusing on their pull‐off bond strength. Materials and Methods A two‐piece abutment was virtually designed after digitizing a titanium‐base (Ti‐base) abutment.
Almira Ada Diken Türksayar   +6 more
wiley   +1 more source

Comparison of cytomorphometry and early cell response of human gingival fibroblast (HGFs) between zirconium and new zirconia-reinforced lithium silicate ceramics [PDF]

open access: yes, 2018
New zirconia-reinforced lithium silicate ceramics (ZLS) could be a viable alternative to zirconium (Y-TZP) in the manufacture of implantological abutments—especially in aesthetic cases—due to its good mechanical, optical, and biocompatibility properties.
Gutiérrez Pérez, José Luis   +4 more
core   +1 more source

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

Biomechanics of the implant‐supported full arch fixed complete denture manufactured by milling and injection techniques: An experimental and FEA study

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study aims to characterize the mechanical properties of implant‐supported full arch fixed complete dentures manufactured by milling and injection techniques. Materials and Methods Twenty‐two samples with milling and injection manufacturing techniques were fabricated.
Mustafa Gürkan   +7 more
wiley   +1 more source

Clinical performance of CEREC AC Bluecam conservative ceramic restorations after five years—A retrospective study [PDF]

open access: yes, 2015
OBJECTIVES: The aim of this study was to assess the clinical performance of CAD/CAM partial coverage posterior restorations made by CEREC AC Bluecam system after 5 years.
Akouchekian, Mohadese.   +3 more
core   +1 more source

Effect of margin thickness and cement gap on the fabrication and fit accuracy of additively manufactured crowns in definitive resins with different filler content

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate how commercially available composite resins in varying filler content affect the fabrication and fit accuracy (trueness and precision) of additively manufactured (AM) definitive crowns with different margin thickness and cement gaps by comparing them to subtractively manufactured (SM) polymer‐infiltrated ceramic crowns ...
Mustafa Borga Dönmez   +5 more
wiley   +1 more source

The preparation and properties of a glass-ceramic with an aligned microstructure [PDF]

open access: yes
The work described in this thesis was performed on glass-ceramics in which a random arrangement of crystals is grown as a dispersed phase. The physical properties of this material are isotropic.
Atkinson, David Ian Heaton
core  

Fracture resistance of zirconia-composite veneered crowns in comparison with zirconia-porcelain crowns. [PDF]

open access: yes, 2017
The objectives were to evaluate the fracture resistance and stress concentration in zirconia/composite veneered crowns in comparison to zirconia/porcelain crowns using occlusal fracture resistance and by stress analysis using finite element analysis ...
Alsadon, O.   +4 more
core   +1 more source

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