Giorgi, Maria Cecília C., and Luís Alexandre Maffei Sartini Paulillo. 2015. “Knoop Hardness of Composites Cured With Halogen and Led Light-Curing Units in Class I Restorations”. Brazilian Journal of Oral Sciences 8 (1). Limeira, SP:30-33. https://doi.org/10.20396/bjos.v8i1.8642325.