3D imaging reveals which jaw brace works best for kids

NCT ID NCT07687927

First seen Jul 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time

Summary

This study compares two types of dental appliances—a fixed Twin Block and a removable Twin Block—used to treat a condition where the lower jaw sits too far back in growing children and teenagers. Both appliances guide the lower jaw forward during growth. Using 3D scans before and after treatment, researchers will measure changes in jaw bones, teeth, facial profile, and the jaw joint to see which appliance works better.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Twin Block appliance (fixed or removable)
What this could lead to
If one appliance proves more effective, it could lead to better treatment guidelines for correcting jaw alignment in growing children.
What could go wrong
This is a small, early-stage study with only 20 participants, so results may not apply to all patients. Both appliances require compliance and may cause temporary discomfort.

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Conditions

The condition(s) this trial relates to.

Micrognathism Overbite

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Faculty of Dental Medicine, Al-Azhar University

    Cairo, Cairo Governorate, 11765, Egypt

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Other studies related to the condition(s) this trial covers.