1. University Central of Venezuela (UCV), University of California, Los Angeles (UCLA), Private Practice Queretaro Mexico
2. Cad‐Cad Designer at Esthetic Dental Lab, Private Practice Queretaro Mexico
3. University Los Andes (ULA), Universidad CES (Medellin, Colombia), Private Practice Queretaro Mexico
4. Periodontal Prosthodontics, University of Washington Washington United States