The Effectiveness of Double-slot Brackets Versus Single-slot Brackets on the Rate of Canine Retraction

Not Applicable

Recruiting

• Conditions: Rate of Canine Retraction
• Interventions: Device: Single-slot brackets; Device: Double-slot brackets

• Registration Number: NCT06481761
• Lead Sponsor: Cairo University

Brief Summary

The aim of this Randomized clinical trial is to compare the efficacy of the double slot brackets compared to single slot-brackets in producing a controlled rate of upper canine retraction into premolar extraction space.

patients will be randomly divided into one of the two groups, CBCT (cone beam computed tomography) and dental models will be taken for each patient Pre-retraction and following the study completion.

The rate of retraction will be evaluated for both groups as well as Amount of canine root movement and molar anchorage loss will be also assessed.

Detailed Description

Eligible patients will be examined for fulfilling the inclusion criteria. All the recruited patients need extraction of upper first premolars followed by canine retraction with maximum anchorage.

The patients will be randomly allocated to one of the two groups; either Double slot brackets or single slot-brackets group.

In Double slot bracket group, Canine retraction will be made on two 0.016'' StSt (stainless steel) round wires, each in one of the slots of the double slot brackets. while in single slot-bracket group, Retraction will be made on one 0.017''×0.025'' rectangular StSt arch wire .

The patients will be seen on a monthly basis for follow up visit for reactivation of retraction to maintain constant force during the study. An impression will be taken for the patients every visit, fabricated dental models will be digitally scanned. The scanned models will be used to monitor the rate of canine retraction.

Every patient will be asked to take a CBCT image of the upper arch pre Retraction and after the completion of study duration (3 months). After data collection, assessors will carry on the measurements blindly. Statistical analysis of the data will be done and the results will be compared to evaluate the effectiveness of both techniques for canine retraction.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Status Verified: 2024-06
• Study First Submitted: 2024-06-24
• Study First Submitted QC: 2024-06-24
• Last Update Submitted: 2024-06-28
• Study First Posted: 2024-07-01
• Last Update Posted: 2024-07-03
• Study Start: 2024-10
• Primary Completion: 2025-01
• Study Completion: 2025-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 30

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

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Exclusion Criteria

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

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Single-slot brackets	Single-slot brackets	Bonding of the upper arch up to second molars with Roth prescription 0.022x.028" single slot brackets (MINI MS-American orthodontics)
Double-slot brackets	Double-slot brackets	Double slot brackets (SORTECH-South Orthodontic Technology) will be Bonded on the upper arch up to the second molars. The brackets are of Roth prescription \& have two slots, cervical 0.018x.025" slot and incisal/occlusal 0.022x.028" slot

Primary Outcome Measures

Name	Time	Method
rate of canine retraction	3 months	millimeters through superimposed digital models taken for each patient monthly at the follow up visits.

Secondary Outcome Measures

Name	Time	Method
Amount of canine root movement	3 months	millimeters through pre and post retraction CBCT (cone beam computed tomography) images of the upper arch
Molar cusp anchorage loss	3 months	millimeters through superimposed digital models taken for each patient monthly at the follow up visits. and pre and post retraction CBCT images

Trial Locations

Locations (1)

Cairo University; 🇪🇬 Giza, Egypt