[1] Hacettepe Univ, Fac Dent, Dept Endodont, TR-06100 Ankara, Turkey
[2] TOBB Univ Econ & Technol, Fac Med, Dept Histol & Embryol, Ankara, Turkey
[3] Erzincan Binali Yildirim Univ, Fac Med, Dept Histol & Embryol, Erzincan, Turkey
[4] TOBB Univ Econ & Technol, Fac Med, Dept Med Biol & Genet, Ankara, Turkey
[5] Hacettepe Univ, Fac Med, Dept Histol & Embryol, Ankara, Turkey