Ramos, M.F., Cárdenas, S.V., Arias, D. y Cruz, S. 2018. In vitro comparative study of apical microfiltration in retrograde fillings between dental cements: MTA Repair Hp and Biodentine. Revista Científica Salud Uninorte. 34, 3 (mar. 2018). DOI:https://doi.org/10.14482/sun.34.3.617.6.