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Maximum Clinical Insertion Torque and Its Association With the Success Rate of Orthodontic Miniscrews

NCT07780149 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 63

Last updated 2026-08-21

No results posted yet for this study

Summary

Orthodontic miniscrews provide temporary skeletal anchorage but are lost prematurely in a proportion of cases despite correct placement. The insertion torque generated when a miniscrew is seated has been proposed as a marker of primary stability, but its relationship with clinical success remains uncertain and the existing evidence is limited. This prospective observational cohort study evaluated orthodontic miniscrews placed for skeletal anchorage during routine fixed orthodontic treatment at the postgraduate orthodontic clinic of Universidad de los Andes, Santiago, Chile. The primary objective was to determine whether the maximum clinical insertion torque measured at placement is associated with miniscrew success. Maximum insertion torque and patient-, device-, site-, and treatment-related characteristics were recorded, and each miniscrew was followed until elective removal or failure.

Conditions

  • Malocclusion

Interventions

DEVICE

microscrew

measurement of microscrew insertion torque and its association with clinical success

Sponsors & Collaborators

  • Universidad de los Andes, Chile

    lead OTHER

Principal Investigators

  • rodrigo oyonarte, orthodontics · Universidad de los Andes, Chile

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-08-07
Primary Completion
2022-05-01
Completion
2022-09-01
FDA Device
Yes

Countries

  • Chile

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07780149 on ClinicalTrials.gov