Modes of failure of Trifecta aortic valve prosthesis
Abstract OBJECTIVES Several concerns have been recently raised regarding the durability of Trifecta prostheses. Different mechanisms of early failure were reported. Our aim was to study in a large population the modes of failure of Trifecta valves.
Pietro Giorgio Malvindi+3 more
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Dental implant-supported prosthesis are widely used in oral reconstruction of totally edentulous patients. Nonetheless, one of the most common failures in these cases is caused by overloading from improper occlusion. The aim of this work was to determine
Laís Carolina Landim Gomes+7 more
doaj +1 more source
Correlation between the Computed Tomography Values of the Screw Path and Pedicle Screw Pullout Strength: An Experimental Study in Porcine Vertebrae [PDF]
Study Design Biomechanical study. Purpose To assess the correlation between the computed tomography (CT) values of the pedicle screw path and screw pull-out strength. Overview of Literature The correlation between pedicle screw pull-out strength and bone
Atsushi Ikeura+6 more
doaj +1 more source
Failure of prosthetic screws on 971 implants
Aim: To evaluate the presence of failures in prosthetic screws and whether these failures are related to the type of prosthesis, abutment angulation and presence or not of intermediate.
Carolina Schäffer Morsch+5 more
doaj +1 more source
Transcatheter aortic valve implantation for severe aortic regurgitation in a patient with end-stage respiratory failure [PDF]
We report a case of a high-risk 73-year–old patient with a combined aortic valve disease with predominant severe, symptomatic aortic regurgitation and a history of an end-stage respiratory failure with prohibitive surgical risk who was successfully ...
Aleksandra Cherneva+6 more
doaj +3 more sources
Dual-Modular Stems for Primary Total Hip Arthroplasty
In primary total hip arthroplasty (THA), dual-modular stems were introduced to better restore hip stability, femoral offset, and leg length. This entry highlights the gathered knowledge about dual-modular stems and related complications in combinations ...
Jan Zajc, Samo Karel Fokter
doaj +1 more source
Strategies to reduce torque loss of abutment screws
Aim: The loosening of abutment screws is a recurrent problem in oral implantology that lacks a consensual solution. The aim of this paper is to review the literature available in search for strategies that might lessen the torque loss of abutment screws.
Beatriz Pardal-Peláez+3 more
doaj +1 more source
On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses [PDF]
Temporomandibular joint replacement (TMJR) is a complex surgical procedure in which the artificial joints available must assure the anatomical reconstruction and guarantee a good range of the natural temporomandibular joint (TMJ) movements. With this aim,
Centeno Báez, Gabriel+3 more
core +2 more sources
The Effects of Interlocking a Universal Hip Cementless Stem on Implant Subsidence and Mechanical Properties of Cadaveric Canine Femora. [PDF]
ObjectiveTo determine if an interlocking bolt would limit subsidence of the biological fixation universal hip (BFX(®)) femoral stem under cyclic loading and enhance construct stiffness, yield, and failure properties.Study designEx vivo biomechanical ...
Buks, Yonathan+3 more
core +1 more source
Catastrophic failure of a monolithic zirconia prosthesis
Recently, monolithic zirconia restorations have received attention as an alternative to zirconia veneered with feldspathic porcelain to eliminate chipping failures of veneer ceramics. In this clinical report, a patient with mandibular edentulism received 4 dental implants in the interforaminal area, and a screw-retained monolithic zirconia prosthesis ...
Woon Ji+3 more
openaire +4 more sources