Accession Number : AD0737267

Title :   An Investigation of Bonding Mechanisms at the Interface of a Prosthetic Material.

Descriptive Note : Annual rept. no. 2, 1 Aug 70-31 Jul 71,

Corporate Author : FLORIDA UNIV GAINESVILLE DEPT OF METALLURGICAL AND MATERIALS ENGINEERING

Personal Author(s) : Hench,L. L. ; Greenlee,T. K. ; Allen,W. E. ; Piotrowski,G.

Report Date : AUG 1971

Pagination or Media Count : 110

Abstract : The report summarizes evidence developed in this laboratory of direct chemical bonding between glass-ceramic implants and rat femurs. An evaluation of the mechanical strength of the bond is presented as a function of healing time. The histological changes at the bone interface of glass-ceramics with and without surface solubilities are compared as a function of time. Results of solubility studies of the glass-ceramics are presented as are investigations of protein epitaxy and adsorbtion at hydroxyapatite crystallite surfaces. Results from tissue culture evaluation of the soluble and nonsoluble glass-ceramic surfaces are also presented. Finally, a computer approach that makes possible stress analysis of bone cross sections is discussed. (Author)

Descriptors :   (*SURGICAL IMPLANTATION, *CERAMIC MATERIALS), (*BONES, BONDING), (*PROSTHETICS, BONDING), GLASS, CHEMICAL BONDS, INTERFACES, MECHANICAL PROPERTIES, HISTOLOGY, ADSORPTION, PHOSPHATES

Subject Categories : Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE