Status unknownNCT05727124Updated Feb 14, 2023

Poul Gjessing Versus T Loops for Orthodontic Maxillary Canine Retraction

An interventional study of Poul Gjessing and T loops in Canine Retraction, sponsored by Al-Azhar University. Status unknown at 1 site in Egypt. Open to participants aged 12 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-02-14.

Sponsored by Al-Azhar University · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Aug 2022), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

Registered 6 months after the study started (first participant enrolled Aug 2022, registered Feb 2023).

Phase: Not applicable
Study type: Interventional
Enrollment: 20
Allocation: Randomized
Ages: 12 Years to 25 Years
Sex: All

Study summary

Poul Gjessing versus T loops for orthodontic maxillary canine

Read the detailed description

Split mouth study one side using Poul Gjessing spring and other side using T loops

Conditions studied

Canine Retraction

In context

Lead sponsor

Al-Azhar University is the lead sponsor of 505 studies on the registry; 167 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

Who can participate

Ages eligible: 12 Years to 25 Years
Sexes eligible: All
Accepts healthy volunteers: Yes

Inclusion criteria

- Class I or II div 1, orthodontic patients, with moderate to severe crowding who are indicated for maxillary first premolar extraction. 2- All permanent teeth are erupted (3rd molars are not included). 3- Good oral and general health. 4- No previous orthodontic treatment.

Exclusion criteria

Exclusion Criteria:

1- Orthodontic cases that could be treated with no indication for extraction therapy.

2- Orthodontic cases that are indicate for the extraction of any tooth other than maxillary first premolars. 3- Patients with systemic diseases that might interfere with the of orthodontic tooth movement.

Study design

Phase: Not applicable
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel assignment
Masking: None (open label)
Enrollment: 20 participants (estimated)

Study arms

Active comparator
Evaluation of Poul Gjessing spring for orthodontic maxillary canine retraction
20 Orthodontic patient treated by Poul Gjessing spring for canine retraction split mouth.
Device: Poul Gjessing
Active comparator
Evaluation of T loop for orthodontic maxillary canine retraction
20 Orthodontic patient treated by T loop for canine retraction split mouth
Device: T loops

Interventions

DevicePoul Gjessing
maxillary canine retraction
DeviceT loops
T loops

What researchers measure

Primary outcomes

rate of canine retraction distance
Time frame: six months

Study locations

1 site

Alazhar university
Cairo, 99988, Egypt

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

Updates

Tracking since Sep 25, 2026

No changes since tracking began. The registry record was last updated on Feb 14, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗

Registry details

Key details

Study ID: NCT05727124
Lead sponsor: Al-Azhar University
Responsible party: Saleh Abdullah Mohammed Abdulsalam (BDS(2018) ,Faculty of dentistry, Aden university, Yemen, Al-Azhar University) — Principal investigator
First posted: Feb 14, 2023
Start date: Aug 1, 2022
Primary completion: Jan 1, 2025 (estimated)
Completion: Feb 1, 2025 (estimated)
Last update: Feb 14, 2023

Oversight

FDA-regulated drug: No
FDA-regulated device: No

View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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