1 Division of Orthodontics, Pomeranian Medical University, Szczecin, Poland.
2 Division of Orthodontics, Technical University Dresden, Dresden, Germany.
3 Department of Biomedical Computer Systems, University of Silesia, Faculty of Computer Science and Materials Science, Institute of Computer Science, Katowice, Poland.
4 Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland.