Evaluation of the effect of different surface treatments on the surface morphology of two commercially available glass fiber posts: A scanning electron microscopy study

Scanning electron microscopy revealed that the surface morphology of both the brands of glass fiber post was altered after surface treatment with 36% phosphoric acid; 4.5% hydrofluoric acid and Air abrasion with 50um alumina particles. These surface changes were minimum for 36% phosphoric acid group and maximum for Air abrasion with 50um alumina particles.