1. Department of Prosthodontics/Dental Materials Science; Institute of Odontology; The Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
2. Department of Periodontics; 618th Dental Company; Camp Humphreys; Pyeongtaek Korea
3. Department of Restorative Dentistry and Biomaterials Sciences; Harvard School of Dental Medicine; Boston MA USA
4. Laboratory for Applied Periodontal & Craniofacial Regeneration; Departments of Periodontics and Oral Biology; Augusta University | Dental College of Georgia; Augusta GA USA