1. Faculty of Dentistry, Department of EndodonticsEskisehir Osmangazi University Eskişehir Turkey
2. Faculty of Dentistry, Department of EndodonticsNecmettin Erbakan University Konya Turkey
3. Faculty of Dentistry, Department of PeriodontologyEskisehir Osmangazi University Eskişehir Turkey
4. Faculty of Agriculture, Department of Animal Science Biometry and GeneticEskisehir Osmangazi University Eskişehir Turkey