Why GIC is the best restorative material in children?: (A) High strength, (B) Good marginal integrity, (C) It can bond to both enamel & dentin, (D) It has less occlusal wear
Answer is C. Glass ionomer cement bonds to the tooth structure by means of an ionic bond between the carboxyl group of polyacrylic acid (liquid) and calcium of the enamel and dentin.
Reference: Materials Used in Dentistry, S mahalaxmi first ed page no 12