| Affiliation: | 1. Advanced Education Program in Endodontics, UTHSCSA, , San Antonio, TX, USA;2. Department of Prosthetic Dentistry, University Hospital Carl Gustav Carus, Technical University Dresden, , Dresden, Germany;3. Advanced Education Program in Periodontology, University of Minnesota, , Minneapolis, MN, USA;4. Private Practice, , Athens, Greece;5. Departments of Periodontology and Implant Dentistry, New York University, , New York, NY, USA;6. Department of Prosthodontics, University of Kiel, , Kiel, Germany |
