The use of bi-layered all-ceramic crowns has continuously grown since the introduction of computer-aided design/computer-aided manufacturing (CAD/CAM) zirconia cores. Unfortunately, despite the outstanding mechanical properties of zirconia, problems related to porcelain cracking or chipping remain. One of the reasons for this is that ceramic copings are usually milled to uniform thicknesses of ...

AIM To review the adhesive bonding to different computer-aided design/computer-aided manufacturing (CAD/CAM) esthetic restorative materials. BACKGROUND The use of CAD/CAM esthetic restorative materials has gained popularity in recent years. Several CAD/ CAM esthetic restorative materials are commercially available. Adhesive bonding is a major determinant of success of CAD/ CAM restorations. R...

Since the immemorial, the replacement of missing teeth has been a medical and cosmetic necessity for human kind. Nowadays, middle-aged population groups have experienced improved oral health, as compared to previous generations, and the percentage of edentulous adults can be expected to further decline. However, with the continued increase in the number of older adult population, it is anticipa...

This paper is a survey of research in Spatial Information Management. Research is reviewed from a variety of applicaLion areas, including Geographic systems, Computer Aided Design and Manufacturing, Image Processing, graphical interfaces to Data Base Management Systems, and general te chniques for the representation of spatial information. Significant issues are outlined, and areas suggested fo...

High orders of end use efficiency and reliability have been achieved in a refrigeration compressor which employs an electromagnetic linear motor. Techniques of computer-aided design were used to explore the operational characteristics of the moving-iron compressor and to simulate its operation. Application tests on prototype units developed through extensive feasibility and manufacturing studie...

Automated classification of artifacts produced by mechanical computer-aided design (CAD) is a unique research frontier for 3D matching and mesh processing. Unlike general graphical models, mechanical CAD artifacts have a physical realization via a variety of manufacturing processes as well as functional and behavioral attributes. The general problem of how to best correlate low-level shape data...