In Vitro Evaluation of the Abrasiveness of Novel Bioactive Glass Powders (Biominf®) on Ivory Dentine in Air Polishing Procedures Compared to Selected Reference Powders

Objectives: To evaluate the abrasiveness of novel Bioactive Glass Powders (BiominF®) on Ivory Dentine compared to selected reference powders. Materials and Methods: Ivory dentine was used as the study sample. Bioactive glasses (Biomin F® and Sylc® Blend) was compared with sodium bicarbonate, glycine, erythritol powders. Particle size analysis and powder output rate were undertaken. The powders were applied for 5 and 10s in a standardized procedure. Evaluation of wear depth on dentine in μm was assessed using White Light Profilometry. Results: BiominF®, Glycine, and erythritol powders showed similar powder output rates. Bioactive glasses (BiominF® and Sylc® Blend) resulted in significantly deeper wear depth compared to references powders. There were no significant differences in wear depth between sodium bicarbonate, glycine, and erythritol powders. Conclusions: Bioactive glasses (BiominF® and Sylc® Blend) were significant more abrasive than sodium bicarbonate, glycine, and erythritol powders. Clinical Relevance: Application of bioactive glasses powder on the root surface should be used with caution despite the desensitizing effect and the promotion of remineralization