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Clinical comparison of two self-directed bleaching systems.
Katherine Karpinia1, Ingvar Magnusson, Matthew L Barker
1Department of Periodontics, University of Florida College of Dentistry, Gainesville, FL 32610, USA. kkarpinia@dental.ufl.edu
Summary
The 6% hydrogen peroxide whitening strips showed superior tooth whitening and better tolerability compared to a multi-step tray system. This single-step approach offers a more effective and comfortable option for vital tooth whitening.
Area of Science:
- Cosmetic Dentistry
- Dental Materials Science
Background:
- Self-directed vital tooth whitening systems are widely used for aesthetic improvement.
- Marketed systems vary in formulation and application, necessitating comparative efficacy studies.
Purpose of the Study:
- To compare the clinical efficacy and tolerability of two self-directed vital tooth-whitening systems.
- Evaluate a 6% hydrogen peroxide whitening strip versus a 10% carbamide peroxide tray-based system.
Main Methods:
- A randomized clinical trial involving 57 adult volunteers.
- Participants used either whitening strips or a tray-based system for 14 days.
- Objective color measurements (L*a*b*) and subjective tolerability assessments were performed.
Main Results:
- Both systems significantly improved tooth color parameters (P < 0.01).
- The 6% hydrogen peroxide strips demonstrated significantly greater improvements in yellowness, lightness, redness, and overall color change (P < 0.001).
- The strip system also showed significantly better overall tolerability (P < 0.05).
Conclusions:
- The single-step 6% hydrogen peroxide strips are more effective for tooth whitening than the multi-step tray system.
- The strip system offers superior clinical response, encompassing both enhanced efficacy and improved tolerability.