1. Periodontal Biology Laboratory Faculty of Dentistry Universidad de Chile Santiago Chile
2. Department of Periodontology School of Dentistry Universidad Científica del Sur Lima Perú
3. Department of Conservative Dentistry Faculty of Dentistry Universidad de Chile Santiago Chile
4. Department of Prosthesis Faculty of Dentistry Universidad de Chile Santiago Chile
5. Institute for Research in Dental Sciences Faculty of Dentistry Universidad de Chile Santiago Chile
6. Oral Physiology Laboratory Faculty of Medicine Biomedical Sciences Institute Universidad de Chile Santiago Chile