1. Department of Orthopedics, Chimei Foundation Hospital, and Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan, Taiwan;
2. Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, Tainan, Taiwan
3. Department of Materials Engineering, National Cheng Kung University, Tainan, Taiwan;
4. Institute of Oral Medicine, National Cheng Kung University, Tainan, Taiwan