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Study maps jaw bone depth to prevent screw injuries during orthodontic treatment

NCT ID NCT07269951

Knowledge-focused Sponsor: Cairo University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 95 patients' cone-beam CT scans to measure bone thickness in the infrazygomatic crest, a common site for placing tiny screws (miniscrews) used in orthodontic treatment. The goal was to find the best angle and screw size to avoid damaging nearby tooth roots. The results provide a practical guide for orthodontists to improve safety and precision.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could give orthodontists a clear guide for placing miniscrews more safely and effectively.
What could go wrong
This is a small, retrospective study using existing scans, so results may not apply to all patients or guarantee safety in real procedures.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

95 people

The number who actually took part.

Started

Sep 2025

Finished

Sep 2025

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

This study will be done on 100 CBCTs of 95 patients; 58 females and 37 males retrospectively to evaluate the bone depth of infrazygomatic crest region for selecting suitable size of miniscrews and proper insertion angle clinical guide in the infrazygomatic crest without injuring the mesiobuccal root of the maxillary first molar.

Ages

16 to 35 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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 having full permanent dentition * all cases were indicated for CBCT for their orthodontic treatment * Patients with sound dentition Exclusion Criteria: * craniofacial anomalies and facial asymmetries * Unclear CBCT * mixed dentition * Patients with systemic bone disorders

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Miniscrew placement

Contacts and locations

Locations

  • Faculty of Dentistry Cairo University

    Cairo, Egypt