Advances in Porous Biomaterials for Dental and Orthopaedic Applications

Materials

Meenakshi Mour¹  Debarun Das¹  Thomas Winkler²  Elisa Hoenig²  Gabriela Mielke²  Michael M. Morlock² 

[1] Department of Mechanical Engineering, National Institute of Technology, Durgapur 713209, India; E-Mails:;Biomechanics Section, Hamburg University of Technology, Hamburg D-21073, Germany; E-Mails:

关键词: biomaterial;    porosity;    tissue engineering;    bone;    teeth;   

DOI  :  10.3390/ma3052947

来源: mdpi

【 摘 要 】

The connective hard tissues bone and teeth are highly porous on a micrometer scale, but show high values of compression strength at a relatively low weight. The fabrication of porous materials has been actively researched and different processes have been developed that vary in preparation complexity and also in the type of porous material that they produce. Methodologies are available for determination of pore properties. The purpose of the paper is to give an overview of these methods, the role of porosity in natural porous materials and the effect of pore properties on the living tissues. The minimum pore size required to allow the ingrowth of mineralized tissue seems to be in the order of 50 µm: larger pore sizes seem to improve speed and depth of penetration of mineralized tissues into the biomaterial, but on the other hand impair the mechanical properties. The optimal pore size is therefore dependent on the application and the used material.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.