Influence of powder type, power, angulation and duration in air-polishing on the surface properties of gingiva-colored composites

Erythritol exhibited the lowest abrasive properties and resulting in lowest hardness loss and roughness increase on the GCC surface. Similarly, the medium power mode and 45° angle caused lower increase in surface hardness and roughness. Based on the tested parameters, if a patient has restorations with GCC, the airflow application protocol can be adjusted according to the findings of this study to achieve optimal results.