1. Resident, Department of Orthodontics, Dental School, University of Turin, Turin, Italy.
2. Visiting Professor, Department of Orthodontics, Dental School, University of Turin, Turin, Italy.
3. Adjunct Professor, Department of Orthodontics, Dental School, University of Turin, Turin, Italy.
4. Professor and Department Chairman, Department of Orthodontics, Dental School, University of Turin, Turin, Italy.