%0 Journal Article %T Comparison of Endodontic Biomaterials as Apical Barriers in Simulated Open Apices %A Mamak Adel %A Moradi Majd Nima %A Shiva Shivaie Kojoori %A Hooryeh Norooz Oliaie %J ISRN Dentistry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/359873 %U http://dx.doi.org/10.5402/2012/359873