PURPOSE To assess the accuracy of three-dimensional models of the human temporal bone generated from CT data. METHODS Thin-section CT of a left human cadaveric temporal bone was performed using multiple-scan planes (axial, coronal, and sagittal) at 1.5-mm section thickness and 0.25-mm pixel size with an edge-enhancement two-dimensional algorithm. CT data were converted to toggle point format ...

INTRODUCTION: Recent researches have shown that, in principle, computer-assisted design, computer-assisted manufacture and rapid prototype technologies (CAD/CAM/RP) can be successfully applied to the fabrication of removable partial denture (RPD) alloy frameworks and replace laboratory crafting techniques. The CAD/CAM techniques have been widely used for a long time to manufacture dental prosth...

STATEMENT OF PROBLEM Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies. PURPOSE This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and c...

Optimization of process parameter is one of the ideal goals in laser sintering. The results of this process were measured as output parameters like: density, micro hardening, macro hardening, tension, roughness, stiffness, balling. In this paper, the influence of input parameter such as laser power, scan speed, material powder and etc are surveyed on output parameter like balling affection and ...

Optimization of process parameter is one of the ideal goals in laser sintering. The results of this process were measured as output parameters like: density, micro hardening, macro hardening, tension, roughness, stiffness, balling. In this paper, the influence of input parameter such as laser power, scan speed, material powder and etc are surveyed on output parameter like balling affection and ...

The components which were assumed to be very difficult to produce or manufacture some years ago can now be made easily using additive manufacturing technology. Additive Manufacturing offers many advantages in the production of parts, presenting freedom for design with the ability to manufacture single or multiple components from a wide range of materials. Different techniques of additive manufa...

Compared with traditional material subtractive manufacturing technologies, rapid prototyping is a layer-based material additive process and can produce a 3-D freeform object with a CAD-defined geometric model directly. As one of the advanced rapid prototyping and manufacturing processes, the direct metal laser sintering (DMLS) process gives designers the possibility to build parts of almost any...