Effect of Preheating on Surface Roughness and Microhardness of a Nanohybrid Composite Resin - An In Vitro Study Journal title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY Authors: Rupali Baban Wetam, Sharad Basavraj Kamat, Santosh Irappa Hugar, Girish Shankar Nanjannawar, Pranav... Subject(s):