Jiri Nedoma, Ph D, is a senior researcher at the Institute of Computer Science of the Academy of Sciences of the Czech Republic, Prague , where he also received his Ph D. He is also an associate professor at the University of West Bohemia, Czech Republic. Jiri Stehlik, Ph D, is the Chief of the Orthopedic Department of the Hospital of Ceske Budejovice, and an associate professor of the Charles University, Prague, where he also received his Ph D. Ivan Hlavacek, Ph D, DSc, is a senior researcher at the Mathematical Institute of the Academy of Sciences of the Czech Republic. He graduated from the Czech Technical University, where he received his Ph D in Applied Mathematics. Josef Danek, Ph D, received his Ph D in applied mathematics from the University of West Bohemia, Czech Republic, where he is currently an associate professor. He is also a research fellow at the Academy of Sciences of the Czech Republic Tatjana Dostálová, MD, Ph D, DSc, is affiliated with Charles University, second Medical Faculty and the Faculty Hospital Motol, where she is the Chief of the Department of Pediatric Stomatology. Petra Preckova, MSc, is a research fellow in the Medical Informatics Department at the Institute of Computer Science, Academy of Sciences of the Czech Republic.