Preparation and characterization of new self-setting calcium phosphate cements based on alkali containing orthophosphates

被引：2
|
作者：
Berger, G [1 ]
Gildenhaar, R [1 ]
Pauli, J [1 ]
Marx, H [1 ]
机构：
[1] Fed Inst Mat Res & Testing, D-12200 Berlin, Germany
来源：
BIOCERAMICS, VOL 17 | 2005年 / 284-286卷
关键词：
P-31-NMR investigation; Ca2KNa(PO4)(2); calcium alkali orthophosphates; calcium phosphate cement; self-setting cement;
D O I：
10.4028/www.scientific.net/KEM.284-286.121
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper deals with calcium phosphate cements containing alkali to achieve higher solubility. Until now normally for all cements also if alkali was integrated the self-setting process leads to hydroxyapatite (HA) or calcium deficient HA (CDHA). In cases where fluid dispersions of HA were used for bone defect treatment the HA remains and do not acts self-hardening. The self-setting cements show high compressive strength in comparison to the HA supplied as a paste. They show latent hydraulic behavior during the self-hardening process. The following storage in SBF for four weeks also did not lead to a strong change of the starting materials that were Ca2KNa(PO4)(2) or Ca-10[K/Na](PO4)(7).
引用
收藏
页码：121 / 124
页数：4
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