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Mouth ridge ID tested after dental expansion

NCT ID NCT07667933

Knowledge-focused Sponsor: Semmelweis University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 14, 2026 · Updated 2 times

Summary

This study looked at whether the unique ridges on the roof of the mouth (palatal rugae) can still be used to identify a person after they have had dental expansion treatment. Researchers used 3D scans from 45 people before and after treatment to see if the ridges remained distinct. The goal is to help forensic experts identify individuals even after dental changes.

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 improve forensic identification methods for people who have undergone dental expansion procedures.
What could go wrong
This is a small, completed study with only 45 participants, so results may not apply broadly. The technique may not be reliable enough for real-world forensic use.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

45 people

The number who actually took part.

Started

Dec 2025

Finished

May 2026

Lead sponsor

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.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * transverse maxillary deficiency requiring 5-8 mm of expansion * indication for either non-surgical miniscrew-assisted palatal expansion or surgically assisted miniscrew-assisted palatal expansion * availability of complete pre- and post-treatment intraoral scans * good general health * permanent dentition Exclusion Criteria: * Previous maxillary expansion treatment * Craniofacial syndromes or cleft lip/palate * Severe periodontal disease * Active oral infection * Systemic conditions affecting bone metabolism * Pregnancy or breastfeeding * Inability to comply with study procedures or follow-up visits

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As listed by the trial registrant

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

Forensic dentistry Intraoral scanner Maxillary expansion Orthodontic appliance Orthognathic surgical procedures

Contacts and locations

Locations

  • Semmelweis University

    Budapest, Pest County, 1088, Hungary

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