1. Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 18a Konarskiego Str., 41-100 Gliwice, Poland
2. Doctoral School, Silesian University of Technology, 2A Akademicka Str., 44-100 Gliwice, Poland
3. Anident Dental Clinic, 12 Belgradzka Str., 02-793 Warszawa, Poland