Fluorine is the world's 13th most abundant element and constitutes 0.08% of the Earth crust. It has the highest electronegativity of all elements. Fluoride is widely distributed in the environment, occurring in the air, soils, rocks, and water. Although fluoride is used industrially in a fluorine compound, the manufacture of ceramics, pesticides, aerosol propellants, refrigerants, glassware, an...

Dental ceramics is a highly esthetic material and its surface properties can impact roughness, bonding properties, as well strength wear. The aim of the study to analyze characteristics by determination roughness parameters three dental used in computer-aided design/computer-aided manufacturing (CAD/CAM) technique: lithium disilicate (LS2), zirconium oxide-reinforced silicate (ZLS), oxide (ZrO2...