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
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