ARTICULOS DE ODONTOLOGÍA

15/9/5 178134 EMA Number: 199806-F1-C-0311
The status of biomaterials for orthopedic and dental applications.
II. Bioceramics in orthopedic and dental applications. Ben-Nissan, B ; Lutton, P P University of Technology (Sydney) Materials Technology (UK) , 12, (3-4) , p. 107-111 ISSN: 1066-7857 Publication Date: July-Aug. 1997 USA , 1997 1997 Country of Publication: USA Journal Announcement: 9806 Document Type: Article Language: ENGLISH
The use of alumina and, more recently, partially stabilized zirconia (PSZ) ceramics for at least one of the articulating surfaces of joints has been an advance in joint replacement. Ceramic implants have become of particular interest because of the increased awareness that wear debris from the metal and polyethylene components of total hip prostheses can cause degeneration of the bone tissue around implants. The combination of a ceramic femoral head and cup could markedly reduce wear rates to as much as thousands of times less than for polyethylene alone. Such ceramic prosthetic concepts were introduced in Europe around 1970. After >25 years of implant history in Europe, 15 years in Japan, and 20 years in Australia there is ample demonstration that the ceramic, alumina (aluminum oxide; Al sub 2 O sub 3 ) is a biocompatible, inert, structural material suitable for use in load-bearing joints. 18 ref. Descriptors: Journal Article; Aluminum oxide-- End uses; Partially stabilized zirconia-- End uses; Ceramics-- End uses; Surgical implants-- Materials selection; Dental materials-- Materials selection; Medical equipment-- Materials selection; Biocompatibility; Wear resistance Section Headings: F1 Engineering Components & Structures Subfile: C Ceramics Eng Materials Abs(R) (Dialog® File 293): (c) 2000 Cambridge Scientific Abs. All rights reserved. © 2000 The Dialog Corporation plc

INFORMACION ESPECIALIZADA