Optimal results can be obtained on direct restorations by the application of layering procedures that combine the accurate morphological insertion of restorative materials with the knowledge of the optical and mechanical properties of both composite resin and natural hard dental tissue. Even if the finishing procedures on restorations, such as margination (the trimming of margins), are minimize...

A magnetic abrasive finishing process using an alternating field is proposed for the of complex surfaces. In field, periodic changes in current will cause cluster used as a brush to fluctuate, which not only continuously replace particles contact with workpiece, but also periodically adjust shape better fit surface workpiece. this paper, influence combination and static fields on area analyzed....

Finishing methods of machining superhard composite’s working elements based on cubic boron nitride BL group are considered. The results the microgeometry formation research cutting inserts’ surfaces during by free powders synthetic diamond, grinding wheels and a method vibro-magnetic-abrasive (VMAM) presented. It is shown that VMAM friction between abrasive particles result in microremoval mate...

This study evaluated the clinical and histological manifestations produced by the submucuous implant of abrasive dental materials in the rat tongue. A total of 128 rats were divided into 4 groups of 32 rats each, according to the material selected for the implant: Herjos-F prophylactic paste both in its normal composition as well as lacking its abrasive components, SS White pumice stone and the...

Abrasive flow machining (AFM) is a manufacturing technique that uses the flow of a pressurized abrasive media to remove work piece material. In comparison with other polishing technique, AFM is very efficient, suitable for the finishing of complex inner surfaces. In recent years, hybrid-machining processes have been developed to improve the efficiency of a process by clubbing the advantages of ...

Magnetic abrasive finishing (MAF) shows a high potential for use on computerized numerical control (CNC) machine tools as standard tool to polish workpieces directly after the milling process. This paper presents new MAF with single, large permanent magnet and novel top cover structure plain ferromagnetic workpieces. The of tool, combined an optimized working gap, ensures effect mechanical powd...

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