Can a simple jaw measurement predict extraction needs?
NCT ID NCT07660146
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study checks if Ashley Howe's analysis, a method that compares jaw bone width to tooth size, can accurately predict when orthodontic patients need teeth removed before braces. Researchers will use digital models from 50 people with crowded teeth. If the method works, it could help orthodontists make more consistent treatment decisions.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could give orthodontists a reliable tool to decide whether tooth extraction is needed before braces, reducing guesswork.
- What could go wrong
- This is a small, early study with only 50 participants. The analysis may not work for all types of crowding, and results may not apply to everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Maxillary models of cases with malocclusion.
- Ages
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12 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Maxillary models of cases with malocclusion. Exclusion Criteria: \-
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Faculty of Dentistry-Cairo University
RECRUITINGCairo, Giza Governorate, 00202, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Digital vs. plaster: can 3D scans replace traditional dental casts?
- Do clear aligners protect tooth bone better than braces? a head-to-head trial
- Bracket battle: which braces system straightens teeth and perfects your smile faster?
- Which bracket placement method gives the best smile? trial compares three techniques
- New 3D-Printed aligners could make braces more precise