The aim of this study was to qualitatively evaluate the marginal vertical fit along two different implant-abutment interfaces: (1) a standard abutment on an implant and (2) a computer-aided-design/computer-aided-machine (CAD/CAM) customized screw-retained crown on an implant. Four groups were compared: three customized screw-retained crowns with three different "tolerance" values (CAD-CAM 0, CA...

PURPOSE The aim of this systematic review was to compare implant prostheses fabricated by computer-assisted design and computer-assisted manufacturing (CAD/CAM) with conventionally fabricated implant prostheses when assessing esthetics, complications (biologic and mechanical), patient satisfaction, and economic factors. MATERIALS AND METHODS Electronic searches for clinical studies focusing o...

background and aims. one of the major problems of all-ceramic restorations is their probable fracture under occlusal force. the aim of the present in vitro study was to compare the effect of two marginal designs (chamfer and deep chamfer) on the fracture resistance of all-ceramic restorations, cercon. materials and methods. this in vitro study was carried out with single-blind experimental tech...

In recent years, CAD/CAM has been extensively applied in global machinery with the rapid development of computer technologies. Due to the technical application of CAD/CAM in manufacturing industry, enterprises have gradually changed their traditional approaches to design and manufacture products. Meanwhile, qualitative changes begin to occur to the production process and control pattern. Hence,...

In the 1950s and 1960s when prototypes of computer aided design (CAD) and computer-aided manufacturing (CAM) were introduced into industrial settings. Early dreamers like Mörmann, Durret and colleagues and Rekow were intrigued by the possibilities of using CAD-CAM in dentistry continued to work, and CAD/CAM systems are now part of everyday dentistry. The success of CAD CAM systems reflects in t...

A Commercial mechanical CAD/CAM packages provide a rather low level of automation of process planning tasks and a weak connection between their CAD and CAM/NC part programming modules. Features have primarily been used as geometry construction 'macros' without fully realizing their potential in supporting downstream applications, such as process planning. This paper demonstrates the useof featu...

Despite the predictable longevity of implant prosthesis, there is an ongoing interest to continue to improve implant prosthodontic treatment and outcomes. One of the developments is the application of computer-aided design and computer-aided manufacturing (CAD/CAM) to produce implant abutments and frameworks from metal or ceramic materials. The aim of this narrative review is to critically eval...