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Comparison of Root Resorption in Modified Corticotomy-Assisted and Conventional Canine Retraction
Sponsor: Islamabad Medical and Dental College
Summary
This randomized controlled clinical trial will compare external apical root resorption in patients undergoing maxillary canine retraction using modified corticotomy-assisted frictionless T-loop mechanics versus conventional frictionless T-loop mechanics. Sixty orthodontic patients requiring extraction of maxillary first premolars will be randomly assigned to two groups. Changes in canine root length will be measured on panoramic radiographs taken before and after retraction to determine the extent of external apical root resorption. The study will evaluate whether modified corticotomy-assisted retraction results in different root resorption outcomes compared to conventional retraction.
Official title: Comparison of External Apical Root Resorption in Modified Corticotomy-Assisted and Conventionally Retracted Maxillary Canines Using Frictionless T-Loop Mechanics: A Randomized Controlled Clinical Trial
Key Details
Gender
All
Age Range
12 Years - 30 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2026-03
Completion Date
2026-07
Last Updated
2026-03-09
Healthy Volunteers
Yes
Interventions
Modified Corticotomy assisted frictionless canine retraction
A surgical procedure in which a buccal flap is elevated and two vertical corticotomy cuts are made in the maxillary cortical bone adjacent to the extraction site to accelerate orthodontic tooth movement.
Conventional Frictionless Canine retraction
Orthodontic space closure using 17×25 TMA T-loops activated to deliver approximately 200 g of force for frictionless canine retraction into maxillary first premolar extraction spaces.
Locations (1)
Islamabad Dental Hospital
Islamabad, Federal, Pakistan