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Effect of antioxidant on tooth sensitivity after bleaching
Mohamed Nabil1, Mostafa Mohamed Hasan2, Eman Abd Elghany Shebl2
1Department of Restorative Dentistry, Faculty of Dentistry, Sinai University, Ismailia, Egypt.
Summary
Antioxidant (sodium ascorbate) significantly reduces tooth sensitivity following in-office bleaching procedures. Applying 10% sodium ascorbate post-bleaching is recommended to alleviate post-operative discomfort.
Area of Science:
- Dental materials science
- Clinical dentistry
- Biomaterials
Background:
- Tooth sensitivity is a common side effect of in-office bleaching.
- Antioxidants, such as sodium ascorbate, are explored for their potential to mitigate this sensitivity.
- Understanding the efficacy of antioxidants with different bleaching techniques is crucial for clinical practice.
Purpose of the Study:
- To evaluate the effect of 10% sodium ascorbate as an antioxidant on tooth sensitivity after light-activated and chemical bleaching.
- To compare the sensitivity levels between bleaching techniques with and without antioxidant application.
Main Methods:
- Ten patients (aged 18-25) were divided into four groups based on bleaching method (light-activated or chemical) and antioxidant use.
- Sensitivity was assessed using the Numerical Rating Scale (NRS) and Schiff Scale (SS) at multiple follow-up intervals (immediately, 1 day, 1 week, 2 weeks, 1 month).
Main Results:
- Light-activated bleaching with antioxidant (Group A) showed significantly lower sensitivity than without (Group B) at 1 day post-treatment.
- Chemical bleaching with antioxidant (Group D) exhibited significantly reduced sensitivity compared to without (Group C) at 1 day post-treatment.
- The antioxidant demonstrated a notable reduction in tooth sensitivity across various follow-up periods, particularly at the 1-day mark.
Conclusions:
- 10% sodium ascorbate effectively reduces tooth sensitivity following both light-activated and chemical bleaching procedures.
- The incorporation of sodium ascorbate post-bleaching is clinically advisable to manage and minimize post-operative tooth sensitivity.
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