New study tests which dental device moves molars best

NCT ID NCT07038902

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two types of dental expanders used to move back molars in people with crowded teeth. One device uses small screws anchored to the bone, while the other relies on the teeth for support. Researchers will use 3D X-rays to measure how much the molars move. The results may help dentists choose the best approach for straightening teeth.

What this could mean

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

Active substance

dental expander (MARPE or RPE)

What this could lead to

If successful, this could help orthodontists choose the best device for moving molars, potentially reducing treatment time or need for extractions.

What could go wrong

This is a small, early-stage study with only 24 participants. Results may not apply to all patients, and the devices may cause discomfort or temporary bite changes.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Crowding Malocclusion

As listed by the trial registrant

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

Contacts and locations

Locations

  • Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut branch.

    Asyut, Egypt