Garcia-Hammaker, Sabrina Saglik, Berna Sierraalta, Marianella Razzoog, Michael
Published in
Journal of prosthodontics : official journal of the American College of Prosthodontists
The aim of this study was to investigate the effect of implant screw channel angulation on the fracture resistance of zirconia abutments without artificial aging. Ten implant replicas were embedded in a jig of autopolymerizing acrylic resin. Using a surveyor and a metallic platform, the implant replicas were mounted centrally and with an angulation...
Schilde, Sebastian Delank, Karl-Stefan Arbab, Dariusch Gutteck, Natalia
Published in
Foot & ankle international
Minimally invasive techniques of Akin osteotomy have grown in popularity, as early results suggest faster recovery, earlier return to work, and minimized wound healing problems. Preserving lateral cortex integrity during first phalanx osteotomy thereby presents a challenge because of the lack of direct visual control. This retrospective comparative...
Salman, Oguz Umut Truskinovsky, L
Localization of damage in conventional brittle materials is the source of a host of undesirable effects. In this paper, we show how artificially engineered metamaterials with all brittle constituents can be designed to ensure that every breakable sub-element fails independently. The crucial role in the proposed design is played by high contrast com...
Kiiko, V. M. Korzhov, V. P. Kurlov, V. N. Khvostunkov, K. A.
Published in
Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques
AbstractIn this paper, we obtain samples of composite materials with a layered niobium-based matrix unidirectionally reinforced with single-crystal sapphire fibers using the solid-phase method of diffusion welding. Sapphire fibers are obtained by the Stepanov method (EFG). As a result of tests, the dependences of the strength of such fibers on the ...
Ashai, Shanze Harvey, Nicholas C
Published in
Clinical medicine (London, England)
Rheumatoid arthritis (RA) is an inflammatory arthropathy affecting 1% of the population, with a female predominance. Systemic inflammation is a key component of RA disease; corticosteroids are often required to rapidly control disease activity. Both inflammation and corticosteroids, however, have an adverse effect on bone mineral density, potential...
Erofeev, K. V. Ogorodnikov, V. A. Syrunin, M. A. Khanin, D. V.
Published in
Combustion, Explosion, and Shock Waves
AbstractLarge explosion-proof chambers are manufactured using cylindrical shells made of sheet metal by rolling and welding with addition of longitudinal and circumferential seams. In this case, one should make a choice of steel with increased strength or ductility. In this regard, this work presents the results of a study of the reaction of such 0...
Warrender, William J Ruchelsman, David E Livesey, Michael G Mudgal, Chaitanya S Rivlin, Michael
Published in
Hand (New York, N.Y.)
Background: There has been a recent increase in the use of headless compression screws for fixation of metacarpal neck and shaft fractures as they offer several advantages, and minimal complications have been reported. This study aimed to evaluate the clinical complications and their solutions following retrograde intramedullary headless compressio...
Huynh, Minh N Q Tang, Ken Cheung, Kevin
Published in
Hand (New York, N.Y.)
Background: The optimal management of pediatric thumb ulnar collateral ligament (UCL) avulsion fractures remains poorly defined. The purpose of this study was to elucidate patient outcomes based on initial management and fracture characteristics. Methods: A retrospective study of all patients younger than 18 years of age presenting with a thumb UCL...
Axibal, Derek Paul Carry, Patrick Skelton, Anne Mayer, Stephanie Watson
Published in
Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
Compare outcomes of operative and nonoperatively managed medial epicondyle fractures in upper-extremity athletes. Retrospective chart review and phone survey. Level 1, tertiary-referral pediatric hospital. Propensity scores (probability of operative treatment) were estimated from a logistic regression model that included sex, age, displacement, lim...
Shevelev, V. V.
Published in
Russian Metallurgy (Metally)
AbstractA structural–statistical kinetic model is developed to describe the brittle fracture of materials at low stresses. Expressions are derived for the average life of a material at low stresses, and a kinetic meaning of the brittle fracture criterion is formulated.
