Surface Microhardness of Tetric N-Ceram Nanoparticulate Resin Photocured with LED Polywave N® vs Monowave MN® at Different Exposure Times - Julia Medina; Gabriel Barriga-Yauri; Franco Mauricio; Arnaldo Munive-Degregori; Felipe Lozano; Fran Espinoza-Carhuancho; Frank Mayta-Tovalino (The Journal of Contemporary Dental Practice, 2025)