DEHP Glass Ionomer Kit A1 A2 A3 Radiopaque glass ionomer filling material with high compressive strength. Used for Class III and V cavities, posterior cavities in deciduous teeth and selected permanent teeth, 'sticky' pits and fissures, core build-up, and MI treatments. Easy to mix with water. Very good translucency and excellent biocompatability. Good chemical adhesion to tooth structure. Starter Kit inlcudes 15g x 3 (A1, A2, A3).