Comparing double-slot and single-slot brackets for canine retraction

The Effectiveness of Double-slot Brackets Versus Single-slot Brackets on the Rate of Canine Retraction: A Randomized Clinical Trial

Not applicable Interventional Cairo University · NCT06481761

This study is testing whether double-slot brackets work better than single-slot brackets for moving upper canine teeth back in young adults after they have had some teeth removed.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages16 Years to 26 Years
SexAll
SponsorCairo University Academic / other
Locations1 site (Giza)
Trial IDNCT06481761 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of double-slot brackets versus single-slot brackets in achieving controlled upper canine retraction following the extraction of first premolars. Patients aged 16-26 with specific malocclusions will be randomly assigned to one of the two groups, with their progress monitored through monthly follow-ups and imaging techniques such as CBCT. The study will assess the rate of canine retraction, root movement, and molar anchorage loss over a period of three months. Statistical analyses will be conducted to compare the outcomes of both bracket types.

Who should consider this trial

Good fit: Ideal candidates are adults aged 16-26 with a full set of permanent teeth and specific malocclusions requiring first premolar extraction.

Not a fit: Patients with a history of previous orthodontic treatment, craniofacial deformities, or poor oral health may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved orthodontic techniques for canine retraction, enhancing treatment outcomes for patients.

How similar studies have performed: While there is limited data on this specific comparison, similar studies in orthodontics have shown varying degrees of success with different bracket designs.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Good oral hygiene.
* Adult Male or Female patients with an age range of 16-26 years old.
* Full set of permanent dentition(excluding third molar).
* Any kind of malocclusion requiring first premolar extraction and canine retraction.
* Patients with type/pattern of crowding that allows leveling and alignment before premolar extraction

Exclusion Criteria:

* History of previous orthodontic treatment.
* Craniofacial deformity.
* Systematic disease or administrating drugs affecting tooth movement.
* Poor oral health.

Where this trial is running

Giza

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Rate of Canine Retractioncanine retractiondouble slot bracketsOrthodontic tooth movement
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.