@article{floratos_tsatsoulis_kontakiotis_2013,  title={Apical Barrier Formation After Incomplete Orthograde MTA Apical Plug Placement in Teeth with Open Apex - Report of Two Cases},  volume={24},  ISSN={0103-6440},  url={https://doi.org/10.1590/0103-6440201302163},  DOI={10.1590/0103-6440201302163},  number={2},  journal={Brazilian Dental Journal},  publisher={Fundação Odontológica de Ribeirão Preto},  author={Floratos, Spyros G. and Tsatsoulis, Ioannis N. and Kontakiotis, Evangelos G.},  year={2013},  month={Mar},  pages={163–166} }