This new implant technology is part of the Procera product line (Nobel Biocare), and is available through a growing network of dental laboratories. It offers the possibility of a consistently excellent passive fit compared with conventional casting techniques, and essentially eliminates the labor intensive process of sectioning and soldering sometimes associated with gold alloy castings. Eliminating the distortion commonly associated with multiple firings of long-span ceramic restorations is also a significant benefit.
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The Actuation Mechanism of 3D Printed Flexure-Based Robotic Microtweezers.
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July 2019
Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA.
We report on the design and the modeling of a three-dimensional (3D) printed flexure-based actuation mechanism for robotic microtweezers, the main body of which is a single piece of nylon. Our design aims to fill a void in sample manipulation between two classes of widely used instruments: nano-scale and macro-scale robotic manipulators. The key component is a uniquely designed cam flexure system, which linearly translates the bending of a piezoelectric bimorph actuator into angular displacement.
View Article and Find Full Text PDFBackground: The aim of this case report is to describe the innovative concept of a prototype use in a digital implant workflow. A prototype is required for simultaneous evaluation of the accuracy of a dental impression and esthetic and functional parameters before final framework realization.
Case Description: Three digital impressions were obtained to create a master file, which contained information on the 3-dimensional (3D) position of the implant, the gingival architecture, and the esthetic and functional features of the provisional restoration.
This new implant technology is part of the Procera product line (Nobel Biocare), and is available through a growing network of dental laboratories. It offers the possibility of a consistently excellent passive fit compared with conventional casting techniques, and essentially eliminates the labor intensive process of sectioning and soldering sometimes associated with gold alloy castings. Eliminating the distortion commonly associated with multiple firings of long-span ceramic restorations is also a significant benefit.
View Article and Find Full Text PDFLevels of high energy phosphate in the dorsal skin of the foot in normal and diabetic adults: the role of 31P magnetic resonance spectroscopy and direct quantification with high pressure liquid chromatography.
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Department of Orthopaedics, University of Washington, Harborview Medical Center, Seattle 98122, USA.
Determining viability of tissues and wound-healing potential in diabetic patients remains a significant challenge. Current methods for preoperative assessment of wound-healing potential (pressures in the ankle, temperature of tissues, transcutaneous measurements of oxygen, and systemic nutritional status) are indirect, in that they characterize the delivery of oxygen or other nutrients to the cells. A noninvasive means to measure adenosine triphosphate (ATP) and phosphocreatine (PCr), the fundamental high energy phosphate substrates of oxidative energy-metabolism in the skin, has been devised by using magnetic resonance spectroscopy (MRS).
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