Aboelenen, R.H. et al. 2020. Evaluation of marginal fit and microleakage of monolithic zirconia crowns cemented by bio-active and glass ionomer cements: In vitro study. Brazilian Dental Science. 23, 1 (Jan. 2020), 11 p. DOI:https://doi.org/10.14295/bds.2020.v23i1.1824.