Effectiveness of Two 10% Carbamide Peroxide Bleaching Products
Author Information
Author(s): S. R. Grobler, A. Majeed, R. Hayward, R. J. Rossouw, M. H. Moola, T. J. van W. Kotze
Primary Institution: Oral and Dental Research Institute, Faculty of Dentistry, University of the Western Cape
Hypothesis
The study aims to compare the effectiveness of two different 10% carbamide peroxide tooth bleaching agents and the relapse in color over a 6-month period.
Conclusion
Both Opalescence PF and Nite White ACP are effective at-home bleaching products, but Nite White showed a higher degree of color relapse over 6 months.
Supporting Evidence
- Both products produced significant whitening of teeth with a total color change of approximately 5.20 units.
- Nite White showed a higher degree of relapse (27%) than Opalescence (18%) over the 6-month period.
- Statistically significant differences were found for all components (L*, a*, b*) for both products between baseline values and the values obtained after treatment.
Takeaway
This study tested two tooth whitening products and found that both worked well, but one faded more after six months.
Methodology
Participants used two different 10% carbamide peroxide products nightly for 14 days, and tooth color was measured before, immediately after, and 6 months after treatment.
Potential Biases
Potential bias in color measurement due to subjective methods in previous studies.
Limitations
The study excluded participants with certain dental conditions and only included those with A2 or darker teeth.
Participant Demographics
Thirty-four volunteers aged 18 and above with A2 or darker teeth.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website