Tight fit, lasting grip? the torque test for orthodontic anchors
NCT ID NCT07780149
First seen Aug 21, 2026 · Last updated Aug 21, 2026
Summary
This study looks at whether the force used to insert a tiny orthodontic screw, called a miniscrew, can predict how well it will hold during treatment. Researchers will measure the insertion torque in 63 patients undergoing orthodontic treatment and follow each screw until it is removed or fails. The goal is to see if a higher torque, which indicates better initial stability, is linked to a lower chance of the screw coming loose. This could help orthodontists choose the best placement strategy for each patient.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- orthodontic miniscrew (a small temporary screw used as an anchor during orthodontic treatment)
- What this could lead to
- If a link is found, dentists could use insertion torque to predict which miniscrews are likely to fail, improving treatment outcomes and reducing the need for re-placement.
- What could go wrong
- This is an observational study, so it can only show an association, not cause and effect. The findings may not apply to all patients or clinical settings, and the sample size is small.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
-
63 people
The number who actually took part.
- Started
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Aug 2020
- Finished
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Sep 2022
- Lead sponsor
-
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.
Who is studied
Patients with indication for insertion of orthodontic mini-screws as an orthodontic anchorage device, attended at the Postgraduate Orthodontic Clinic of CESA, Universidad de los Andes, San Bernardo, Chile.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * \- Patients undergoing orthodontic treatment and who have a clinical indication for skeletal anchorage using mini-screws. * Patients who freely and voluntarily accept the procedure as part of their orthodontic treatment. * Patients who freely and voluntarily consent or agree to the use of their TM installation and evolution data as part of their orthodontic treatment. Exclusion Criteria: * \- Patients with craniofacial syndromes. * Patients with uncontrolled systemic disease. * Patients with active periodontal disease.
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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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Valentina Risso
Santiago, Santiago Metropolitan, vitacura, Chile
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