Abstract : This study aims to compare the degree of damage to ceramic surfaces prepared for bonding ceramic orthodontic brackets using 10% hydrofluoric acid and sandblasting with 50 µm aluminum oxide particles. The research sample consisted of 30 ceramic surfaces (IPS E-Max Zirpress) divided into two groups, which were treated using two methods, sandblasting with 50 µm aluminum oxide particles (SB) and Etching using hydrofluoric acid (HFA) 10%. The Porcelain Fracture Index (PFI) was used to detect any damage on the ceramic surfaces after brackets debonding. The PFI scores showed that all samples etched with hydrofluoric acid scored 0. While 86.7% of sandblasting samples scored 1, and only 13.3% scored 0, with significant differences between the two groups (p-value <0.001). The use of 10% hydrofluoric acid to etch ceramic surfaces showed less damaging results compared to sandblasting with 50 µm aluminum oxide particles.