Hypersensitivity and Color Changes of Bleached Teeth Using Different Remineralizing Agents

The aim of this in vivo study is to evaluate the post-bleaching enamel hypersensitivity and the possible color changes following the application of arginine and nano-hydroxyapatite remineralizing solutions after enamel bleaching using an in-office chemical bleaching agent. A commercial Fluoride remineralizing and desensitizing agent will be used as the control group. Following bleaching of the anterior teeth and then the application of the different tested remineralizing agents; the patients will be assessed for post-bleaching hypersensitivity using the visual analogue scale (VAS) to describe the severity of the hypersensitivity from mild to moderate to severe. On the other hand, the baseline shade and post-bleaching color changes will be evaluated using a shade guide. The data will be collected and tabulated then the statistical analysis will be performed. The null hypothesis is that the different tested remineralizing agents will have a similar effect on the post-bleaching teeth hypersensitivity \& the color changes of the bleached teeth.