Research Article

An In Situ Evaluation of the Protective Effect of Nano Eggshell/Titanium Dioxide against Erosive Acids

Figure 5

Raman spectrum obtained for tooth samples (a) expose to HCI alone; (b) expose to HCI + Sensodyne; (c) exposed HCI + Colgate toothpaste; (d) expose to HCI + EB@TiO2; (e) unexposed tooth.