An Introduction to Bioceramics (2nd Edition) by Larry L Hench

By Larry L Hench

This can be the second one version of the vintage publication An creation to Bioceramics which supplies a complete evaluate of every kind of ceramic and glass fabrics which are utilized in medication and dentistry. the large progress of the sector of bioceramics is because of the popularity by way of the scientific and dental group of the significance of bioactive fabrics to stimulate fix and regeneration of tissues. This version contains 21 new chapters that record the technology and particularly the medical functions of the hot iteration of bioceramics within the box of tissue regeneration and service. vital socioeconomic elements influencing the economics and availability of latest clinical remedies are coated with updates on regulatory approaches for brand new biomaterials, tools for expertise move and moral matters.

The ebook includes forty two chapters that provide the single complete remedy of the technological know-how, know-how and scientific functions of every kind of bioceramic fabrics utilized in drugs and dentistry. each one bankruptcy is written through leaders of their really expert fields and is an intensive overview of the subject material, in contrast to many convention complaints. All chapters were edited to mirror an analogous writing sort, making the publication a simple learn. The completeness of remedy of every kind of bioceramics and their medical purposes makes the ebook distinct within the box and priceless to all readers.

Readership: Undergraduates, graduate scholars and researchers within the box of bioceramics.

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Additional resources for An Introduction to Bioceramics (2nd Edition)

Sample text

In solid-state sintering, solid material is moved to areas of contact between particles. The driving force is reduction of surface energy gradients. A fully dense compact has no internal solid–vapor interfaces and therefore is lower energy than a porous material. Sintering occurs by thermal activation of molecules at the solid–pore interface; mechanisms include grain boundary diffusion, volume diffusion, surface diffusion, creep or various combinations depending upon the temperature, sintering atmosphere and composition of the material.

UHMWPE acetabular components were used in all cases. The amount of wear was measured using X-ray techniques. 043 mm per year for metal heads. 18 Socket wear was measured using X-ray techniques. 14 mm per year with metal balls. In 1991, Asada et al. 19 They concluded that an alumina ceramic was the better articulating material. One of the most important properties of articulating components is the wear and friction behavior over an extended period of time. Comparative tests in hip joint simulators have demonstrated tribologic superiority of high-purity alumina ceramic systems compared with metalto-metal and metal-to-UHMWPE combinations.

Use of SPT diagrams such as this, together with finite element analyses of local stress distributions, make it possible to design ceramic components that have very low probabilities of failure during the lifetime of the patient. Results from aging and fatigue studies show that it is essential that Al2O3 implants be produced with the highest possible standards of quality assurance, especially if they are to be used as orthopedic prostheses in younger patients. 3. USE OF ALUMINA IN TOTAL HIP PROTHESES Alumina ceramics are being used in hip and knee prostheses because of inertness, excellent biocompatibility, and high wear resistance.

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