1. Dłucik Dental Clinic, Katowice, Poland
2. Department of Pediatric Otolaryngology of Head and Neck Surgery, Department of Pediatric Surgery of the Upper Silesian Children’s Health Center, Silesian Medical University, Katowice, Poland
3. Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
4. Department of Department of Human Adult and Childhood Pathology, University of Messina, Messina, Italy