1. Section of Graduate Periodontology, Department of Dental Clinic Specialties, Faculty of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain
2. ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, Faculty of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain
3. Innovation and Development, ISDIN, Provençals 33, 08019 Barcelona, Spain