Effect of ionizing radiation on the mechanical properties of current fluoride-releasing materials.

Objectives: This study aimed to evaluate the effect of fractional radiation on the mechanical properties of fluoride-releasing materials.

Materials And Methods: High-viscosity glass ionomer cement (F9), resin-modified glass ionomer cement (F2), glass hybrid restoration (EQ), and bioactive composite (AC) were divided into 3 subgroups: 0, 35, and 70 Gy fractional radiation doses. The specimens were subjected to surface roughness, Vickers microhardness, and compressive strength tests.