Effects of bleaching agents and Tooth Mousse™ on human enamel hardness
Article first published online: 23 SEP 2012
© 2012 Wiley Publishing Asia Pty Ltd
Journal of Investigative and Clinical Dentistry
Volume 4, Issue 2, pages 94–100, May 2013
How to Cite
Alkhtib, A., Manton, D. J., Burrow, M. F., Saber-Samandari, S., Palamara, J. E.A., Gross, K. A. and Reynolds, E. C. (2013), Effects of bleaching agents and Tooth Mousse™ on human enamel hardness. Journal of Investigative and Clinical Dentistry, 4: 94–100. doi: 10.1111/jicd.12001
- Issue published online: 25 APR 2013
- Article first published online: 23 SEP 2012
- Manuscript Accepted: 18 JUL 2012
- Manuscript Received: 10 APR 2012
- mechanical properties;
The aim of this laboratory study was to investigate the effect of three commercial bleaching agents and Tooth Mousse™ containing 10% w/w casein phosphopeptide–amorphous calcium phosphate on the hardness of tooth enamel.
Sixteen human enamel specimens were exposed to one of three commercial bleaching agents with or without subsequent exposure to Tooth Mousse™. Nanoindentation was used to measure the hardness and reduced modulus before and after treatments.
When bleaching materials were applied for a short period of time following the manufacturers' instructions, there was an increase in enamel hardness and reduced modulus for some bleaching groups, with no statistically significant difference from the baseline values. After extended bleaching periods a statistically significant decrease in enamel hardness and reduced modulus was found and after applying Tooth Mousse™ post-bleaching, the hardness and reduced modulus returned to close to baseline values.
The application of bleaching agents for an extended period of time significantly decreases enamel hardness and the reduced modulus. The application of Tooth Mousse™ after bleaching was able to reestablish the baseline enamel hardness and reduced modulus, decreasing the adverse effects of bleaching enamel.