POROUS DENTAL IMPLANT CAPABLE OF DEGRADING SO AS TO RELEASE MAGNESIUM IONS

WIPO Patent Application WO/2019/104853

A1

A porous dental implant capable of degrading so as to release magnesium ions, comprising an implant base (1) printed with SLM technology from a pure titanium material. A porous structure is provided inside of the planting base (1), and spherical holes (a2) or thread grooves (b2) are provided on the surface of the planting base (1). The spherical holes (a2) or the thread grooves (b2) are filled with degradable layers (a3, b3), and the degradable layers (a3, b3) are formed by means of instantaneous melt adhesion of magnesium particles. The degradable layers (a3, b3) inlaid in the surface of the porous dental implant are melted by means of laser heating to achieve adhesion, and can cover the rough surface of the pure titanium implant base printed by SLM, and thus the processing requirements of SLM printing are reduced. The elastic modulus and yield strength of the degradable layers (a3, b3) are close to those of the bone tissue, so that the porous dental implant will not suffer from stress shielding during the early stage of planting, and magnesium ions contained in the degradable layers (a3, b3) can promote cell growth and accelerate the bone binding process.

ZHANG CHUNYU (CN)
JI FANGQIU (CN)
CHEN XIANSHUAI (CN)
WANG YALING (CN)
YAN YU (CN)
FENG KEHAN (CN)
FENG WEI (CN)

PCT/CN2018/073415

June 06, 2019

January 19, 2018

Click for automatic bibliography generation  

GUANGZHOU JIANCHI BIOTECHNOLOGY CO LTD (CN)

A61C8/00; A61L27/50

CN108114322A	2018-06-05
CN104055594A	2014-09-24
CN102014798A	2011-04-13
CN107119260A	2017-09-01
CN102348472A	2012-02-08
CN104523342A	2015-04-22

JIAQUAN IP LAW FIRM (CN)

View/Download PDF      PDF Help

Previous Patent: POROUS DENTAL IMPLANT HAVING SURFACE INLAID WITH DEGRADABLE LAYER AND PREPARATION METHOD THEREFOR

Next Patent: PERFORMANCE TEST AND EVALUATION METHOD AND APPARATUS, TERMINAL DEVICE, AND STORAGE MEDIUM