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The Use of Diode Low-Power Laser Therapy before In-Office Bleaching to Prevent Bleaching-Induced Tooth Sensitivity: A
Felice Femiano1, Rossella Femiano1, Nicola Scotti2
1Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Study of Campania, "Luigi Vanvitelli", 83138 Naples, Italy.
Dentistry Journal
|July 28, 2023
Summary
Low-level laser therapy (LLLT) before in-office teeth whitening can reduce tooth sensitivity. This laser treatment helps minimize post-bleaching discomfort and speeds up recovery.
Area of Science:
- Dentistry
- Biophotonics
Background:
- Tooth sensitivity is a common side effect of in-office bleaching procedures.
- Preventive measures are sought to mitigate post-treatment discomfort.
Purpose of the Study:
- To evaluate the efficacy of low-level laser therapy (LLLT) as a pre-treatment to reduce tooth sensitivity following in-office bleaching.
Main Methods:
- Thirty patients undergoing 38% hydrogen peroxide bleaching were randomized into test (LLLT) and placebo groups.
- The test group received 810 nm diode laser treatment (0.5 W, 30 s, 15 J/cm²) prior to bleaching.
- Tooth sensitivity was assessed using a Visual Analog Scale (VAS) at multiple time points post-bleaching.
Main Results:
- Both groups experienced increased VAS scores post-bleaching.
- The LLLT group showed a faster decrease in VAS scores, approaching baseline levels within 1 hour compared to the placebo group.
Conclusions:
- Preliminary diode LLLT is a viable option for reducing post-whitening tooth sensitivity.
- LLLT may shorten the recovery time for patients experiencing tooth sensitivity after bleaching.
