1. Department of Oral Surgery, Faculty of Medicine, University of Naples Federico II, Via Pansini 5, Edificio 14, 80131 Naples, Italy
2. Department of Oral and Maxillofacial Surgery, University of Michigan Health System, Ann Arbor, MI 48109-1078, USA
3. LoB5 Research Unit, School of Dentistry and Research Center for Biomineralization Disorders, Chonnam National University, Gwangju 500-757, Republic of Korea
4. Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, SP, Brazil
5. Oral Surgery and Implant Dentistry Department, School of Dentistry, University of Granada, Granada, Spain