Reactivity of a wollastonite-tricalcium phosphate Bioeutectic® ceramic in human parotid saliva
Reactivity of a wollastonite-tricalcium phosphate Bioeutectic® ceramic in human parotid saliva
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DOI：
10.1016/s0142-9612(00)00058-2
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发表时间：
2000-09-01
期刊：
影响因子：
14
通讯作者：
De Aza, S
中科院分区：
文献类型：
--
作者：
De Aza, PN;Luklinska, ZB;De Aza, S
在之前的一项研究中，通过硅灰石-磷酸三钙体系的共晶温度区域缓慢凝固而制备的新型陶瓷材料（Bioeutectic(R)）被发现在模拟体液中具有反应性。在本研究中，对人腮腺唾液中 Bioeutectic(R) 的反应性进行了评估。将材料样品在37℃的人腮腺唾液中浸泡1个月。实验表明，在样品的外围形成了两个独立的碳酸盐-羟基磷灰石类相区域。第一个区域是通过生物共熔物与唾液的反应形成的，并在材料内部发展。另一个区域通过介质的沉淀在生物共晶表面上形成。人腮腺唾液中碳酸盐-羟基磷灰石类相的形成机制似乎与模拟体液中发现的类磷灰石相的形成机制相似。 (C) 2000 Elsevier Science Ltd. 保留所有权利。
In a previous study, a new ceramic material (Bioeutectic(R)), prepared by slow solidification through the eutectic temperature region of the wollastonite-tricalcium phosphate system, was found to be reactive in a simulated body fluid. In the present study, the reactivity of the Bioeutectic(R) was assessed in human parotid saliva. Samples of the material were soaked for one month in human parotid saliva at 37 degrees C. The experiments showed the formation of two separate zones of carbonate-hydroxyapatite-like phase on the periphery of the samples. The first zone was formed by reaction of the bioeutectic with the saliva and progressed inside the material. The other zone developed on the surface of the bioeutectic by precipitation from the media. The mechanism of carbonate-hydroxyapatite-like phase formation in human parotid saliva appeared to be similar to that of apatite-like phase found in a simulated body fluid. (C) 2000 Elsevier Science Ltd. All rights reserved.