1. Department of Histology and Embryology, Poznań University of Medical Sciences , Poznań , Poland
2. Department of Anatomy, Poznań University of Medical Sciences , Poznań , Poland
3. School of Medicine, Medical Sciences and Nutrition, University of Aberdeen , Aberdeen , United Kingdom
4. Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos , Guarulhos , Brazil
5. Department of Biomaterials and Experimental Dentistry, Poznań University of Medical Sciences , Poznań , Poland