The Microhardness and Surface Roughness Assessment of Bulk-Fill Resin Composites Treated with and without the Application of an Oxygen-Inhibited Layer and a Polishing System: An In Vitro Study. - Carrillo-Marcos A; Salazar-Correa G; Castro-Ramirez L; Ladera-Castañeda M; López-Gurreonero C; Cachay-Criado H; Aliaga-Mariñas A; Cornejo-Pinto A; Cervantes-Ganoza L; Cayo-Rojas CF (Polymers, 2022)