Nanoindentation and storage of teeth
Nanoindentation and storage of teeth
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DOI：
10.1016/s0021-9290(02)00039-8
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发表时间：
2002-07-01
影响因子：
2.4
通讯作者：
Marshall, SJ
中科院分区：
文献类型：
--
作者：
Habelitz, S;Marshall, GW;Marshall, SJ
本研究测定了牙本质和牙釉质在去离子水、氯化钙缓冲盐溶液和Hank平衡盐溶液（HBSS）中储存期间的纳米力学性质的变化。基于原子力显微镜的纳米压痕显示，存储在去离子水或氯化钙溶液中的牙齿导致弹性模量和硬度的大幅度下降。在第一天，釉质和牙本质的机械性能值分别下降了20%和30%。1周后，机械性能下降到其起始值的50%以下，这归因于储存期间的脱矿质过程。相比之下，储存在HBSS牙齿没有显着改变机械性能的时间间隔为2周。建议使用HBSS储存牙齿样本。(C)2002爱思唯尔科技有限公司版权所有。
This study determined changes in nanomechanical properties of dentin and enamel during storage in deionized water, calcium chloride buffered saline solution and Hank's balanced salts solution (HBSS). Atomic force microscopy based nanoindentation showed that storing teeth in deionized water or CaCl2-solution resulted in a large decrease in elastic modulus and hardness. At I day a decrease in the mechanical properties values of up to 20% and 30% was observed for enamel and dentin, respectively. After 1 week, mechanical properties dropped below 50% of their starting Values, which is attributed to a demineralization process during storage. In contrast, storing teeth in HBSS did not significantly alter the mechanical properties for a time interval of 2 weeks. The use of HBSS for storage of samples from teeth is recommended. (C) 2002 Elsevier Science Ltd. All rights reserved.