Which tray makes teeth whitening safer and more comfortable?

NCT ID NCT06881654

First seen Nov 01, 2025 · Last updated May 09, 2026 · Updated 30 times

Summary

This study looks at whether using a soft or rigid tray for at-home tooth whitening with a 16% peroxide gel leads to better results and fewer side effects. One hundred adults with stained teeth will use either a soft or rigid tray for 2 hours daily over 3 weeks. Researchers will track tooth color, sensitivity, gum irritation, and overall satisfaction for up to a year.

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Contacts and locations

Locations

  • Universidad Rey Juan Carlos

    Alcorcón, Madrid, 28922, Spain

Conditions

Explore the condition pages connected to this study.