1. School of Life Science and Biotechnology, Institute for Hard Tissue and Bio-tooth Regeneration, School of Dentistry, Kyungpook National University, Daegu, Korea.
2. Department of Biochemistry, Institute for Hard Tissue and Bio-tooth Regeneration, School of Dentistry, Kyungpook National University, Daegu, Korea.
3. Department of Oral and Maxillofacial Radiology, Institute for Hard Tissue and Bio-tooth Regeneration, School of Dentistry, Kyungpook National University, Daegu, Korea.
4. Department of Anatomy and Neuroscience, Institute for Hard Tissue and Bio-tooth Regeneration, School of Dentistry, Kyungpook National University, Daegu, Korea.
5. Dental Education Development Center, Tokyo Dental College, Chiba, Japan.