登入選單
返回Google圖書搜尋
其他書名
Chapter 11. Alumina- and Zirconia-based Ceramics for Load-bearing Applications
出版Elsevier Inc. Chapters, 2013-09-05
主題Technology & Engineering / Materials Science / General
ISBN012806014X9780128060148
URLhttp://books.google.com.hk/books?id=GlVzDAAAQBAJ&hl=&source=gbs_api
EBookSAMPLE
註釋This chapter reviews the structure, mechanical properties, and biocompatibility of load-bearing ceramics used in dentistry. The development of this class of ceramic biomaterials is traced from the late sixties when alumina was introduced in dentistry. The literature on both polycrystalline and single crystal alumina dental implants is reviewed. The use of alumina declined when zirconia-toughened ceramics were introduced in orthopedics in the eighties. The use of yttria partially-stabilized tetragonal zirconia (Y-TZP) in dentistry allowed the production not only of dental implants and abutments, but also a broad range of load-bearing fixed partial dentures, such as multi-unit bridges and crowns, thanks to the development of CAD/CAM technology. Today, the trend is to use alumina and zirconia ceramics for making more aesthetic parts by improving their optical translucency.