CompletedNot Applicable

Miniscrews as Anchorage Device for Orthodontic Treatment

Sweden80 participantsStarted 2009-11

Plain-language summary

The purpose of this trial is to study and compare two different anchorage techniques. Adolescent patients in need for orthodontic treatment are randomized into Group A and B. Both groups are treated with extractions of the maxillary first premolars and fixed appliance. Anchorage is reinforced by miniscrews in Group A and by molarblock in Group B. The hypotheses are: * that placement of miniscrews does not cause more pain or discomfort than premolar extractions * that molarblock provides increase of anchorage * that miniscrews have a better anchorage capacity than molarblock * that miniscrews are more cost-efficient than conventional anchorage techniques

Who can participate

Age range

11 Years – 20 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: * Adolescents in need of orthodontic treatment with fixed appliance including extractions of the maxillary first premolars * Need for Anchorage reinforcement * Permanent dentition including the maxillary second molars in occlusion (DS4M2 according to Björk) * Regular dental care in Sweden since the age of three. Exclusion Criteria: * Experience of previous orthodontic treatment * Need for orthognathic surgery * Need for maximum anchorage.

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

Change in Tooth Position of the Maxillary Molars During Space Closure

Timeframe: Through Space Closure (T2-T3), an average of 9 months

Trial details

NCT IDNCT02644811

SponsorRegion Gävleborg

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2018-07

View on ClinicalTrials.gov More Orthodontic Anchorage Procedures trials