Efficacy of Transverse Maxillary Expansion With AMCOP Preformed Appliances (NCT06864949) | Clinical Trial Compass
By InvitationNot Applicable
Efficacy of Transverse Maxillary Expansion With AMCOP Preformed Appliances
Italy30 participantsStarted 2025-03-15
Plain-language summary
The present study aimed to investigate the cross-sectional effect of Class I AMCOP devices in patients of all possible skeletal types from both vertical skeletal pattern (normodivergent, hyperdivergent, hypodivergent) and sagittal skeletal pattern (skeletal Class I, skeletal Class II, skeletal Class III).
The criterion for choosing patients was determined by the protocol of using these devices, which is to always perform an AMCOP First Class phase with the aim of improving transverse coordination of the arches, Spee's Curve and Wilson's Curve.
Who can participate
Age range
7 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 presenting maxillary transverse deficits (that includes: posterior crossbite monolateral or bilateral; end-to-end occlusal relationships; excessive linguoinclination of lower posterior teeth due to the contraction of maxillary arch; limited permutation space of permanent elements)
* patients with all sagittal and vertical skeletal patterns
Exclusion Criteria:
* syndromic patterns, cleft lip or cleft palate, severe malformations of the maxillae, severe skeletal asymmetry
* physical or psychological limitations
* presence of metallic restorations
* previous orthodontic treatments
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
1
Change in upper intermolar distance on digital casts
Timeframe: Before treatment (T0) and after 10-12 months of treatment (T1)