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Protective effect of TiF(4) solutions with different concentrations and pH on development of erosion-like lesions
L H Hove1, B Holme, K R Stenhagen
1Institute of Clinical Dentistry, Department of Cariology and Gerodontology Faculty of Dentistry, University of Oslo, Oslo, Norway. lenehh@odont.uio.no
Aim:
To evaluate how concentration and pH of TiF(4) influence the erosion-protective effect.
Methods:
Specimens were treated with a TiF(4) solution: (1) 0.5 M F, pH 1.2, (2) 0.05 M F, pH 2.1, (3) 0.5 M F, pH 2.1, or (4) 0.05 M F, pH 1.2; then, they were exposed to HCl.
Results:
After 2 min, the proportions of the area covered with the coating were 93, 71, 17 and 0% in groups 1-4. When present, the coating seemed to protect the surface. After 6 min, a coating could only be seen in group 1 (43%).
Conclusion:
Reducing the concentration of TiF(4) and increasing the pH of the solution decreased the protective effect.
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