1. Department of Dental Surgery, Wroclaw Medical University, Wroclaw, Poland.
2. Private Dental Practice, Wschowa, Poland.
3. Master Student, “Sapienza” University of Rome, Rome, Italy.
4. Department of Pathology, Medical University of Wroclaw, Wroclaw, Poland.
5. Instituto Brugnera e Zanin, Dental Clinic, Sao Paulo, Brazil.
6. Department of Oral and Maxillofacial Surgery, Sapienza University of Rome, Rome, Italy.