Braces vs. clear aligners: which fixes Kids' jaw problems better?
NCT ID NCT07591025
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at two ways to fix a type of jaw misalignment (Class II malocclusion) in 60 children aged 9 to 14. One method uses traditional Twin Block braces, and the other uses clear aligners called AngelAligner A6. The goal was to see how well each method moves the lower jaw forward, using X-rays and digital measurements. The study is already completed and does not test a new treatment, but rather compares existing options.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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60 people
The number who actually took part.
- Started
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Oct 2022
- Finished
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Jul 2025
- 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.
- Ages
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9 to 14 years
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: * Aged between 9 and 14 years with late mixed or early permanent dentition * Class II/1 malocclusion (molar relationship ≥ half-cusp Class II and overjet ≥ 5 mm) * ANB angle greater than 5º * SNB lower than 78º * CVMS 2-3, a growing patients. Exclusion criteria: * Previous orthodontic treatment or orthognathic surgery * Patients with severe malformations or syndromes * Extraction treatment.
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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.
Contacts and locations
Locations
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University of Salamanca
Salamanca, Salamanca, 37008, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.