1. Clinical Professor Department of Periodontology School of Dentistry; University of Seville; Sevilla Spain
2. Professor of Prosthodontics, School of Dentistry; University of Seville; Sevilla Spain
3. Division of Restorative Sciences, Adjunct Faculty; Hermann Ostrow School of Dentistry of USC; Los Angeles California
4. Research Department, Faculty of Dentistry; Universidad de los Andes; Santiago Chile
5. Private Practice; Sao Paulo Brazil
6. Adjunct Clinical Instructor, Department of Cariology and Comprehensive Care; New York University College of Dentistry; New York NY