1. Department of Biomaterials Science, College of Dentistry, Dankook University
2. Institute of Tissue Regeneration Engineering, Dankook University
3. Department of Dental Technology, Chungbuk Health & Science University
4. Department of Dental Laboratory, Gimcheon University
5. Department of Dental Technology, Shinhan University
6. Department of Removable Prosthodontics, School of Dental Medicine, Tsurumi University