1. School of Dentistry College of Oral Medicine Taipei Medical University Taipei Taiwan
2. Division of Oral and Maxillofacial Surgery Department of Dentistry Wan Fang Hospital Taipei Medical University Taipei Taiwan
3. Institute of Oral Sciences Chung Shan Medical University Taichung Taiwan
4. Department of Dentistry Chung Shan Medical University Hospital Taichung Taiwan
5. School of Dentistry Chung Shan Medical University Taichung Taiwan
6. Department of Anatomy School of Medicine China Medical University Taichung Taiwan