Results 141 to 150 of about 4,574 (288)

The Spot‐Dam Technique: A Protocol for Adhesive Cementation of BOPT Crowns

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective The Biologically Oriented Preparation Technique (BOPT) uses vertical tooth preparation without a defined finish line, guided by provisional restorations to shape the gingival emergence profile. Subgingival crown margins inherent to BOPT increase the risk of residual cement and soft‐tissue trauma during adhesive cementation.
Maria Giolanta Liaropoulou   +4 more
wiley   +1 more source

In Vitro Effects of Combining Resin Infiltration and At‐Home Bleaching on Hydrogen Peroxide Penetration, Color Change and Enamel Morphology

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of resin infiltration (RI) prior to at‐home bleaching on hydrogen peroxide (HP) penetration into the pulp chamber, color change, and enamel morphology in human teeth with sound enamel or white spot lesions (WSLs), using different RI protocols.
Bruno Baracco   +5 more
wiley   +1 more source

Brush Seals for Improved Steam Turbine Performance

open access: yes, 2006
GE Energy has retrofitted brush seals into more than 19 operating steam turbines. Brush seals offer superior leakage control compared to labyrinth seals, owing to their compliant nature and ability to maintain very tight clearances to the rotating shaft.
Baily, Fred   +6 more
core  

3D transparent technology displays the developmental patterns of ductus arteriosus morphology in chicken embryos before and after birth

open access: yesJournal of Anatomy, EarlyView.
At the eighth week of human embryonic development, 3D transparent imaging enables clear visualization of the outflow tract's morphological features, revealing its anatomical components in detail. Abstract The ductus arteriosus (DA) is a critical fetal vascular structure that shunts blood from the pulmonary artery to the aorta, bypassing the non ...
Conghong Xu   +7 more
wiley   +1 more source

Peri‐implant tissue definition and registration with a 3D‐printed emergence profile former on titanium stock healing abutment: A dental technique and clinical report

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Recent focus has shifted toward refining the soft tissue emergence profile to enhance aesthetics, support peri‐implant health, and ensure long‐term success. Traditionally, titanium stock healing abutments or chairside‐customized abutments were used to shape peri‐implant tissues and develop the emergence profile for implant‐supported prostheses.
Francisco X. Azpiazu‐Flores   +5 more
wiley   +1 more source

CFD Investigation of Brush Seal Leakage Performance Depending on Geometric Dimensions and Operating Conditions

open access: yes, 2015
ASME Turbo Expo: Turbine Technical Conference and Exposition -- JUN 15-19, 2015 -- Montreal, CANADADogu, Yahya/0000-0003-0474-2899Brush seals require custom design and tailoring due to their behavior driven by flow dynamic, which has many interacting ...
Dogu, Yahya   +5 more
core  

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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