1. Department of Oral Implantology; Osaka Dental University; Osaka Japan
2. ARDEC Academy; Rimini Italy
3. University of Bern; Bern Switzerland
4. Center for Dental Medicine; University of Zurich; Zurich Switzerland
5. ARDEC Foundation; Cartagena de Indias; Bolívar Colombia
6. Rafael Núñez University Corporation; Bolívar Colombia