1. Stomatologia Puciło, Zielona Góra, Poland.
2. Faculty of Medicine and Dentistry, Pomeranian Medical University, Szczecin, Poland.
3. Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland.
4. Department of Conservative Dentistry and Endodontics, Pomeranian Medical University, Szczecin, Poland.