Evaluation of Canine Retraction Using Clear Aligners Versus Fixed Orthodontic Appliances: A CBCT Randomized Clinical Trial

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

PACTR

Registry ID

PACTR202602515664729

Enrollment

Registered

2026-02-19

Start date

2024-03-01

Completion date

Unknown

Last updated

2026-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oral Health

Interventions

Clear Aligners

Fixed appliance

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Age from 13 to 20 years. Both genders Fully erupted permanent dentition Bi-maxillary dentoalveolar protrusion without/with mild crowding in maxillary and mandibular arches. Patients require the extraction of the first premolars to achieve a Class I canine relationship. Healthy, compliant, and motivated patients who can regularly visit the department. Good oral and general health. No previous orthodontic treatment.

Exclusion criteria

Exclusion criteria: Craniofacial abnormalities, congenital syndromes of the craniofacial area. Anterior or posterior crossbite. Anterior or lateral open bite. Poor oral hygiene or a periodontally compromised patient

Design outcomes

Primary

Measure	Time frame
canine cusp retraction distance for the left and right maxillary canines;canine apex retraction distance for the left and right maxillary canines;canine angulation	—

Secondary

Measure	Time frame
Anchorage loss, measured as mesial movement of maxillary molars on both left and right sides	—

Countries

Egypt

Contacts

Public ContactAhmed Ibrahim

MSc

drahmed.ali.88@outlook.com00201063615001

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Jun 29, 2026