Nano-structure and nano-mechanical properties of human teeth

Chung Jen Chung, Bo Hsiung Wu, Jen Fin Lin, Chang Fu Han, Shu Fen Chuang, Wang Long Li

研究成果: Conference contribution

摘要

In this study, we investigate the nanostructure and nano-mechanical properties of human teeth. A nano-indenter is adopted to acquire the nano-mechanical properties of teeth, while a focused ion beam system (FIB) is used to prepare high quality transmission electron microscopy specimen. For nanomechanical properties, the tooth specimens are cut into horizontal and vertical sections separately within 1mm thick. All the sections contain dentin, dentinenamel junction (DEJ) and enamel. The hardness and Young's modulus of each compartment are systematically measured, both showing an increasing trend from the dentin to the enamel. As to the preparation for transmission electronic microscope (TEM) specimen, the teeth are cut into 50 nm thickness. High resolution images and diffraction patterns reveal that dentin is poly-crystallized and present anisotropic properties.

原文English
主出版物標題NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
頁面593-596
頁數4
DOIs
出版狀態Published - 2011 十月 4
事件6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011 - Kaohsiung, Taiwan
持續時間: 2011 二月 202011 二月 23

出版系列

名字NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems

Other

Other6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
國家Taiwan
城市Kaohsiung
期間11-02-2011-02-23

    指紋

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

引用此

Chung, C. J., Wu, B. H., Lin, J. F., Han, C. F., Chuang, S. F., & Li, W. L. (2011). Nano-structure and nano-mechanical properties of human teeth. 於 NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (頁 593-596). [6017425] (NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems). https://doi.org/10.1109/NEMS.2011.6017425