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Initial color change and color retention with a hydrogen peroxide bleaching strip.
- Source :
- American Journal of Dentistry; Feb2002, Vol. 15 Issue 1, p3-7, 5p, 2 Charts, 4 Graphs
- Publication Year :
- 2002
-
Abstract
- Purpose: A randomized, double blind clinical trial was conducted to evaluate initial color improvement and post-treatment color retention following vital bleaching with a strip-based tooth whitening system. Materials and Methods: After balancing for baseline color, 57 healthy adults were randomized to either whitening strips with a 5.3% hydrogen peroxide bleaching gel (Crest Whitestrips) or placebo strips without hydrogen peroxide. Maxillary and mandibular anterior teeth were treated twice daily for 30 minutes each over a 2-week period, and efficacy was measured objectively by comparing digital images of teeth collected at baseline, end-of-treatment (Week 2) and 6 months after treatment (Month 6). Results: The whitening strip group experienced a highly significant (P< 0.0001) reduction in yellow of -2,0 Δb* units versus baseline and -1.95 Δb* units versus placebo, with similar results noted for the other color parameters in the study. Most of the initial color change remained at 6 months post-treatment, with the whitening strip group continuing to demonstrate highly significant (P< 0.0001) improvements in tooth color relative to baseline and placebo. Age was found to significantly contribute to initial color improvement, with younger subjects experiencing a greater initial reduction in yellowness compared to older participants, but not to post-treatment color retention. The whitening strips were well tolerated, with minor tooth sensitivity and oral irritation representing the most common findings during treatment. There were no persistent or new treatment-related adverse events during the 6-month monitoring period. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08948275
- Volume :
- 15
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- American Journal of Dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 51161077