Comparison of T-loop vs Opus Loop in Canine Retraction Efficacy and Anchorage Loss Control

NCT ID: NCT06945575

Last Updated: 2025-07-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 14 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-02-04
• Study Completion Date: 2025-07-01

Brief Summary

The primary aim of this split-mouth randomized control trial is to compare the rate of canine retraction between the T loop and the Opus loop. The secondary objectives are to compare the angulation of the canine, changes in the first molar position in terms of anchorage loss, and molar rotation for the two loops used T-loop and Opus loop will be placed randomly on the right and left quadrants of patients for canine retraction and outcomes will be measured before and after completion of canine retraction

Detailed Description

T-loop and Opus loop will be placed in the right and left quadrants of the patient for canine retraction after initial leveling and alignment. canine retraction rate will be measured by using a calibrated caliper every month. canine angulation will be evaluated by periapical x-ray which will be taken before and after completion of canine retraction and anchorage loss and molar rotation will be assessed by model analysis

Conditions

Space Closure, Orthodontic

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Opus loop

Opus loop will be inserted from 1st molar to canine for canine retraction. it will be activated every month

Group Type: ACTIVE_COMPARATOR

Opus loop

Intervention Type: OTHER

17X25SS will used to fabricate opus loop which is L shaped loop with helix

T-loop

T loop will be inserted from 1st molar to canine for canine retraction. it will be activated every month

Group Type: ACTIVE_COMPARATOR

T loop

Intervention Type: OTHER

17X25SS wire will be used to fabricate T-loop which is a T shaped loop

Interventions

Opus loop

17X25SS will used to fabricate opus loop which is L shaped loop with helix

Intervention Type: OTHER

T loop

17X25SS wire will be used to fabricate T-loop which is a T shaped loop

Intervention Type: OTHER

Other Intervention Names

opus

Eligibility Criteria

Inclusion Criteria

Age between 14 -40 years Extractions of maxillary 1st premolars Class 1, 1/4th, 1/2, and 3/4th unit Class II molar relation Presence of all teeth up to the second molar Good oral hygiene

Exclusion Criteria

Full cusp Class II Developmental, medical, or genetic problems Patient using bisphosphonates Spacing in dentition Grossly carious upper molars that cannot be restored Patient with active periodontal disease Severe crowding

• Minimum Eligible Age: 14 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Dow University of Health Sciences

OTHER

Sponsor Role: lead

Responsible Party

Maria Moin

Assistant professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Bahria University Health Sciences

Karachi, Sindh, Pakistan

Countries

Pakistan

Other Identifiers

DowUHS 2

Identifier Type: -

Identifier Source: org_study_id