The concept of computer-aided design/computer aided manufacturing(CAD/CAM) was first mentioned decades ago in the field of *** technology to make dental restorations has found wide application recently and developed r...
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The concept of computer-aided design/computer aided manufacturing(CAD/CAM) was first mentioned decades ago in the field of *** technology to make dental restorations has found wide application recently and developed rapidly in prosthodontics and oral implantology,for it could save patients’ time and manpower,have precision on prostheses’ edging,*** now there are several commercial CAD/CAM systems on *** the use of CAD/CAM technology in dentistry,it has broken the traditional pattern of making dentures ***,it brings opportunity for material *** machinable/milled materials in dentistry should have not only excellent biocompatibility,but also machining and physical *** of them are ***,a great number of blocks are made from feldspar ceramics,glass-ceramics,alumina oxide,zirconium oxide,titanium,composite materials,wax and so *** of researchers have had their focus on metal-free materials,because it can make the restorations look more natural and not show the inside metal ***,strength like feldspar ceramics has its own *** has strict indications,otherwise the restoration may *** technique called In-Ceram has been used long time *** also has long clinical experience and excellent long-term *** have explored this technique in CAD/CAM *** have manifested that it can be utilized this *** first,alumina was milled with pores;then,glass was infiltrated to the milled *** zirconia had its success used in orthopedics,it became more and more popular to investigate whether this stuff was suitable in dentistry or ***,it has been proved adaptable for making single crown in posterior area,fixed partial dentures,in particular,and milling it using CAM equipment,due to the partially sintered block’s hardness like *** milled polymer materials are made for temporary crowns or *** recent years,because of the phenomen
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