Objective To compare the effectiveness of three different filling materials for patients with wedge-shaped incisions. Methods A total of 200 patients with wedge-shaped incision treated in our hospital from September 2019 to September 2022 were randomly divided into group A (n=67), group B (n=67) and group C (n=66). Group A was treated with general resin, group B was treated with light-cured composite resin, and group C was treated with glass ionomer as filling material. The clinical efficacy and patient satisfaction of the three groups were compared. Results The success rate of repair in group C was higher than that in group A and group B, and the success rate of repair in group B was higher than that in group A, the difference was statistically significant (P