New dental device aims to improve jaw correction in kids
NCT ID NCT07608406
First seen Jun 25, 2026 · Last updated Jul 15, 2026 · Updated 3 times
Summary
This study tests whether a modified dental device (Twin Block) works better than the standard clear version for correcting jaw alignment in children aged 10-13 with a specific type of overbite. Forty participants will be randomly assigned to one of the two devices. The study will measure changes in jaw position, joint health, and patient comfort using X-rays and questionnaires.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Modified Twin Block Appliance (dental device)
- What this could lead to
- If successful, this could show that a modified dental device is more effective at correcting jaw alignment and reducing jaw joint discomfort in growing children.
- What could go wrong
- This is a small, early-stage trial with only 40 participants, so results may not apply to all patients. The devices are not drugs, so risks are low but include discomfort or poor fit.
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
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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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Dec 2026
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.
- Ages
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10 to 13 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: * Systemically healthy patients. * Patients willing to accept removable functional appliance therapy. * Skeletal Class II malocclusion (Angle Class II Division 1). * Skeletal Class II due to mandibular retrusion (ANB ≥ 5°, 6 mm ≤ OJ ≤ 13 mm , SNB ≤ 78°, with normal maxillary position). * Growth stage corresponding to MP3 stage or pre-pubertal peak according to hand-wrist radiograph (Björk and Helm, 1967). * No severe dental crowding in the dental arches and no significant maxillary dental protrusion. * Absence of congenital anomalies, trauma, burns, or surgical scars affecting the temporomandibular joint or craniofacial structures. * Absence of systemic or rheumatologic diseases affecting the temporomandibular joint. Exclusion Criteria: * Presence of clinical signs or symptoms of temporomandibular joint disorders. * Functional mandibular deviation. * Previous orthodontic 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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Faculty of Dentistry, University of Aleppo
Aleppo, Aleppo Governorate, Syria
More trials for these conditions
Other studies related to the condition(s) this trial covers.