UnknownNot Applicable

Effectiveness of Modified Functional Appliance With Expander

Iraq48 participantsStarted 2023-05-09

Plain-language summary

This clinical trial compares the effectiveness of a myofunctional appliance that uses a clear and modified twin block appliance with an expander made from 2mm biocompatible polyethylene terephthalate modified with Glycol thermoplastic material with a conventional twin block appliance with an expander. The trial will be conducted on adolescent patients with class II division 1.

Who can participate

Age range

10 Years – 13 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Patients' age at the start of treatment: at growth spurt \[in stage 2 (Acceleration) - 3 (Transition) of cervical vertebral maturation\].
. Skeletal and dental relationships: skeletal class II with normal maxilla and retrognathic mandible. Moderate to severe dental class II division 1 malocclusion with overjet ≥ 8 mm.
. Horizontal/normal growth pattern.
. Convex profile with decreased or normal lower facial height (clinically and radiographically).
. Well-aligned/mild crowding of maxillary and mandibular dental arches.
. Good oral health free from caries and periodontal problems at the start of treatment.

Exclusion criteria

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Anteroposterior skeletal changes

Timeframe: T0 (before treatment), T1 (at end of the study) around 6-9 months

Vertical skeletal changes

Timeframe: T0 (before treatment), T1 (at end of the study) around 6-9 months.

Trial details

NCT IDNCT06116500

SponsorUniversity of Baghdad

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2024-05-09

View on ClinicalTrials.gov More Class II Malocclusion trials