The Impact of Airflow on Enamel Surface Roughness and Color Change Publisher



A Valian AZAM ; Zj Ansari Zahra JABERI ; M Rezaei MOHAMMADMOEIN
Source: Dental Research Journal Published:2025

Abstract

Background: In dentistry, esthetic restorations are vital.Adequate polishing can minimize color changes of a tooth.The aim of this study was to evaluate the effect of the Prophy‑Mate neo device, which uses airflow, on surface roughness and color changes in enamel. Materials and Methods: In this in-vitro study included 30 teeth immersed in tea solution for 7 days.The specimens were divided into three groups based on the polishing procedure (airflow with calcium carbonate, airflow with sodium bicarbonate, and diamond paste). The whitening procedure was performed according to the instructions for each powder of airflow (Prophy‑Mate neo, NSK, Japan) and paste.After polishing, the specimens were again immersed in a tea solution for another 7 days. Color assessment was carried out at baseline (T1) and after polishing (T2) using the CIELab* system. In addition, the morphology of the enamel surface for each specimen from each group was evaluated by profilometer atT1 andT2,and the paired t‑test andTukey’s were used to compare results between groups. Results:The variation in surface roughness (Ra) between calcium carbonate (0.381 µm) and sodium bicarbonate (0.447 µm) powders was not significant, but the performance of diamond paste was significantly better.The difference between the secondary staining after polishing was lower than the pigment absorption in the primary staining (before polishing) in the diamond paste group. Conclusion: Overall, the study did not show any significant reduction in the amount of surface roughness and color changes in airflow compared to traditional polishing methods.The cost and services of the Prophy‑Mate neo device make it challenging to introduce airflow as an alternative to conventional techniques (P<0.05). © 2025 Elsevier B.V., All rights reserved.