BONE TISSUE ENGINEERING USING B-TRICALCIUM PHOSPHATE SCAFFOLDS FABRICATED VIA SELECTIVE LASER SINTERING

摘要

β - tricalcium phosphate ( β -TCP) is a biodegradable ceramic with potentialrnapplication for bone replacement. In this work, porous β -TCP scaffolds were fabricated via selective laser sintering, which is a rapid prototyping technique. β -TCP and glue composite was developed as a powder material to product porous scaffolds, using this computer-controlled sintering and deposition process. The β -TCP scaffolds were produced with the strut size 800 μm and max porosity 55.4%. Compressive modulus ranged from 13MPa to 18Mpa, and shrinkage was about 26%. Analysis of the measured data shows a high correlation between the scaffold porosity and the compressive properties based on SLS process relationship.