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July 20, 2026BMC Oral HealthOpen Access

Comparative evaluation of LED- and diode laser-assisted in-office tooth whitening: a pilot randomized clinical study

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Authors

CACarmen AmititeloaieTPTinela PanaiteCBCarina Balcos

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Overview

Randomized trial compares tooth whitening outcomes in participants using LED and diode laser protocols, indicating promising results.

Key Points

  • This pilot randomized clinical trial aimed to compare two light-assisted tooth whitening protocols using objective measures.
  • Twelve healthy participants (18-45 years) with tooth discoloration were randomly allocated into two groups, one using diode laser and the other LED for whitening.
  • Whitening was done with hydrogen peroxide gel (35% for diode laser, 25% for LED) and color changes were measured with a digital spectrophotometer.
  • Post-treatment sensitivity was recorded on a Visual Analog Scale and patient satisfaction assessed via a questionnaire.
  • Both groups showed perceptible whitening (ΔE > 3.3); LED group had median ΔE of 9.71, diode laser group was 10.87.
  • Tooth sensitivity was higher in the LED group (median 3.5) compared to diode laser (median 2.5), but not statistically significant (p = 0.065).
  • Patient satisfaction was reported as high in both groups.

Cite This Study

Amititeloaie et al. (2026) studied this question.

synapsesocial.com/papers/6a5dba128bd453d3397ab461https://doi.org/10.1186/s12903-026-09268-5
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1An In-Vitro Study on the Impact of Light-Emitting Diode (LED) and Laser-Activated Bleaching Techniques on the Color Change of Artificially Stained Teeth at Varying Time Intervals2024 · 1 citations
  2. 2Evaluation of Two in Office Bleaching Systems with and without Laser Activation: An In Vitro Study2024
  3. 3In-office tooth bleaching protocols: an umbrella review of systematic reviews and meta-analyses on whitening efficacy and tooth sensitivity2026 · 2 citations
  4. 4Illuminating the Evidence: A Comprehensive Review of Light-Assisted In-office Tooth Bleaching2026 · 1 citations
  5. 5Influence of a Combination of Catalysts to Improve the Outcomes of In-office Bleaching.2025