Factors Affecting Dental Caries Experience in 12-Year-Olds, Based on Data from Two Polish Provinces oleh Kinga Andrysiak-Karmińska, Alicja Hoffmann-Przybylska, Piotr Przybylski, Zuzanna Witkowska, Ewa Walicka, Maria Borysewicz-Lewicka, Iwona Gregorczyk-Maga, Mansur Rahnama, Karolina Gerreth, Justyna Opydo-Szymaczek