1. Department of Dentistry, Kaohsiung Armed Forces General Hospital, Kaohsiung 802, Taiwan
2. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
3. Medical Device Development Division, Metal Industries Research & Development Centre, Kaohsiung 82151, Taiwan
4. Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan
5. Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, School of Chinese Medicine, China Medical University, Taichung 40724, Taiwan
6. Institute of Biomedical Engineering and Material Science, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
7. Department of Fiber and Composite Materials, College of Engineering, Feng Chia University, 100 Wenhwa Road., Seatwen, Taichung 40724, Taiwan