Research Results from University of Baghdad Update Knowledge of Artificial Saliva (Assessment of surface microhardness of enamel surface treated with Nano- HAP serum before and after bleaching).

A research report from the University of Baghdad discusses the use of nanohydroxyapatite (n-HAP) serum to enhance the microhardness of enamel surfaces before and after bleaching. The study found that applying n-HAP serum for 2-3 minutes daily for 10 days before bleaching resulted in a significant increase in microhardness. This increase was maintained even after storage for 14 days in artificial saliva. The research suggests that n-HAP can be an effective preventive and treatment measure for maintaining enamel microhardness. [Extracted from the article]