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Bite by bite: jaw differences in vietnamese teens could sharpen orthodontic care

NCT ID NCT07696494

Knowledge-focused Sponsor: Can Tho University of Medicine and Pharmacy Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 10, 2026 · Last updated Jul 17, 2026 · Updated 2 times

Summary

This study looks at how the shape of the jaw and dental arches differs among teenagers aged 15 to 18 with three common types of misaligned bites (Class I, II, and III). Researchers in Vietnam used X-rays and 3D scans to measure facial bones, teeth, and soft tissues. The goal is to help orthodontists better understand these differences so they can plan more personalized treatments for adolescents.

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 research could help orthodontists better tailor treatment plans for adolescents with different bite problems.
What could go wrong
This is an observational study, not a treatment trial. Findings may not apply to other populations or settings.

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

300 people

The number who actually took part.

Started

Jun 2023

Finished

Jun 2024

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.

Who is studied

The study population consisted of 300 orthodontic patients aged 15-18 years who attended the Faculty of Odonto-Stomatology, Can Tho University of Medicine and Pharmacy, Vietnam. Participants had permanent dentition and were classified into Angle Class I, Class II, or Class III malocclusion based on clinical examination. All participants had complete lateral cephalometric radiographs and three-dimensional intraoral scans and had not received previous orthodontic treatment.

Ages

15 to 18 years

Sex

Anyone

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: * Adolescents aged 15-18 years. * Permanent dentition. * Diagnosed with Angle Class I, II, or III malocclusion. * Complete lateral cephalometric radiographs and digital intraoral scans available. * No previous orthodontic treatment. Exclusion Criteria: * Craniofacial syndromes or congenital anomalies. * History of orthognathic surgery. * Missing permanent teeth (excluding third molars). * Poor-quality radiographs or digital scans. * Incomplete clinical records.

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Conditions

The condition(s) this trial relates to.

autosomal dominant prognathism

As listed by the trial registrant

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

Angle malocclusion Cephalometry Digital dental models

Contacts and locations

Locations

  • Can Tho University of Medicine and Pharmacy

    Can Tho, +84, Vietnam

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