1. Department of Orthodontics, Pomeranian Medical University of Szczecin, 70111 Szczecin, Poland
2. Department of Preclinical Conservative Dentistry and Preclinical Endodontics, Pomeranian Medical University of Szczecin, 70111 Szczecin, Poland
3. Department of Conservative Dentistry, Pomeranian Medical University of Szczecin, 70111 Szczecin, Poland