Results 131 to 140 of about 364,055 (260)

New accelerating admixture based on metal silicate hydrates

open access: yes, 2015
In the present paper a new accelerating additive for cement mixtures, based on transition metal silicate hydrates, is described. The new additive is highly effective in promoting the nucleation and growth of silicate phases of portland cement.
FAVERO, MARCO   +8 more
core  

Evaluation of the Integrity of Ceramic Laminates After Adhesive Cementation

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives This study evaluated the effects of resin‐based materials on crack occurrence in ceramic laminate veneers (CLVs) after adhesive cementation. Additionally, the polymerization shrinkage stress (PSS) and maximum polymerization rate (MPR) of the resin‐based materials were determined. Materials and Methods Four resin‐based materials were
Luana de Melo Soares   +7 more
wiley   +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

Effect of surface treatments on the bond strength between additively manufactured or injection‐molded high‐performance polymers and titanium

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effect of surface treatment and fabrication techniques of high‐performance polymers on their shear bond strength (SBS) to grade IV titanium. Materials and Methods A total of 120 pre‐milled titanium abutments were sectioned.
Ahmet Serkan Küçükekenci   +3 more
wiley   +1 more source

Effectiveness of self‐etching ceramic primer on the bond strength of dental glass ceramics: A systematic review and meta‐analysis of in vitro studies on feldspathic and leucite‐reinforced ceramics

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This systematic review and meta‐analysis evaluated the bond strength effectiveness of a self‐etching ceramic primer, specifically Monobond Etch & Prime (MEP), compared to hydrofluoric acid with silane (HF+S) in feldspathic and leucite‐reinforced dental glass‐ceramics (DGCs). Materials and Methods This study followed PRISMA‐p guidelines
Nathalya Fedechen Martins   +5 more
wiley   +1 more source

The Cement era : Devoted to cement, concrete and related machinery.

open access: yes, 1903
Mode of access: Internet.United in Jan. 1918 with Cement world and International trade to form Engineering and cement world (later Engineering world)

core  

The effects of material thicknesses and substrates on the translucency and color masking ability of additively manufactured definitive crown materials

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the translucency of the new 3D‐printable materials concerning thickness and the color masking ability of each material against different substrate colors. Materials and Methods Ninety square‐shaped specimens (12.0 mm × 12.0 mm) of two new 3D‐printable materials: ceramic‐infiltrated hybrid resin composite (VS) and light ...
Ting Wang   +5 more
wiley   +1 more source

Retardation mechanisms of sodium gluconate for hydration of pure tricalcium silicate and alite in cement

open access: yes, 2009
Sodium gluconate is known to be a strong set retarder of cement. Many studies have been devoted to the interactions between cement and gluconate at early ages but the true mechanisms of this retardation is not yet elucidated.
Sallier, Yannick   +3 more
core   +1 more source

Hydraulic fast‐setting calcium silicate cement for crown cementation

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated film thickness, diametral tensile strength (DTS), and crown retentive strength of hydraulic fast‐set calcium silicate cement (fast‐set CSC) compared to conventional luting cements. Materials and Methods Fast‐set CSC was compared to zinc phosphate cement and glass ionomer cement.
Atefeh Nemati Karimooy   +3 more
wiley   +1 more source

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