CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 38 enrolled
Drug / intervention
Round-cross-section archwire +1 moreprocedure
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT07243509
NCT07243509N/ACompleted

Evaluation of the Efficacy of Sliding Mechanisms on Round Versus Rectangular Archwires in Canine Retraction After First Premolar Extraction in Class II Malocclusion: A Randomized Clinical Trial

Damascus University·interventional·Posted Nov 24, 2025·Updated Nov 24, 2025

In Brief

A clinical study evaluating Round-cross-section archwire and Rectangular-cross-section archwire for CLASS II DIVISION 1 MALOCCLUSION. Completed, enrolled 38 participants across 1 site.

Detailed Summary

Patients at the Orthodontic Department of the University of Damascus Dental School will be examined, and subjects who meet the inclusion criteria will be included. Then, initial diagnostic records (diagnostic gypsum models, internal and external oral photographs, and radiographic images) will be studied to ensure that the selection criteria are accurately matched. This study aims to compare two groups of patients with mild to moderate skeletal Class II malocclusion (ANB angle between 5° and 7°), a normal to slightly increased vertical growth pattern (Björk's sum \> 390° and \< 406°), and an overjet of 5-10 mm. Experimental group: the patients in this group will be treated in the canine retraction phase with a sliding on a round-section archwire of 0.020 inch Control group: the patients in this group. Maxillary canine distalization was carried out using sliding mechanics on a 0.019 × 0.025-inch stainless steel archwire.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesSyria
Collaborators--

Timeline

N/ACompletedFinished
202420252026
First PostedNov 24, 2025
Enrollment StartJul 7, 2023
Primary CompletionApr 1, 2024
Study CompletionJul 15, 2024
TodayJul 2, 2026
Enrollment to primary: 9 monthsPosted 7 months ago

Interventions

Round-cross-section archwireprocedure

Canines will be retracted on an archwire with a diameter of 0.20 inches.

Rectangular-cross-section archwireprocedure

Canines will be retracted on an archwire with a diameter of 0.019 x 0.025-inch.