Laser vs. LED: which whitens teeth better and hurts less?
NCT ID NCT07493941
First seen Jun 27, 2026 · Last updated Jun 30, 2026 · Updated 2 times
Summary
This study tests two ways to activate a bleaching gel on teeth: using a laser or an LED light. Researchers want to see which method whitens better, causes less tooth sensitivity, and leaves teeth smoother. 45 adults aged 20-35 who want whiter teeth will take part in this single-session treatment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- 35% hydrogen peroxide bleaching gel
- What this could lead to
- If successful, this could help dentists choose the best activation method for whiter teeth with less sensitivity.
- What could go wrong
- This is a small, early-stage study with only 45 participants. Results may not apply to everyone, and tooth sensitivity or surface changes are possible side effects.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Restorative Department, Faculty of Dentistry, Tanta University
Tanta, Tanta, 31527, Egypt
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