Evaluation Of Anchorage Control During Canine Retraction Using Arch Wire Stopper Versus Mini-Screws

Not Applicable

Recruiting

• Conditions: Orthodontic Appliance Complication

• Registration Number: NCT06416904
• Lead Sponsor: Cairo University

Brief Summary

The study aims to compare the anchorage control during canine retraction using arch wire stopper versus mini-screws in post-pubertal patients with maxillary dentoalveolar protrusion

Detailed Description

The study begins with patient selection according to inclusion and exclusion criteria, followed by treatment planning, and then bonding of orthodontic brackets of the upper and lower arches, including the second maxillary molars.

After leveling and alignment for all participants, the extraction of the maxillary first premolars will be performed.

* In the "Intervention Group" Canine retraction will be performed on 0.017×0.025 ss archwire with an archwire stopper mesial to the upper first molar.

* In the "Comparator Group" Canine retraction on 0.017×0.025 ss archwire with the upper first molars indirectly anchored to inter-radicular mini screws

Lastly, the anchorage control in both groups and the secondary outcomes will be assessed using the obtained digital models and lateral cephalometric radiographs.

Study Timeline

• Study Start: 2024-02-13
• Status Verified: 2024-05
• Study First Submitted: 2024-05-12
• Study First Submitted QC: 2024-05-12
• Last Update Submitted: 2024-05-12
• Study First Posted: 2024-05-16
• Last Update Posted: 2024-05-16
• Primary Completion: 2025-05
• Study Completion: 2025-05

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Female
• Target Recruitment: 26

Inclusion Criteria

• Post-pubertal female patients.
• Cases with bimaxillary protrusion or Class II Division 1 malocclusion that require maxillary first premolars extraction.
• Full permanent dentition (not necessitating third molars).
• Good oral hygiene.

Exclusion Criteria

• Medically compromised patients.
• Active periodontal disease or obvious bone loss in the maxillary arch.
• Patients with habits that are detrimental to dental occlusion (thumb sucking, tongue thrusting).
• Smoking or any systemic diseases.
• Chronic use of any medications including antibiotics, phenytoin, cyclosporine, anti-inflammatory drugs, systemic corticosteroids, and calcium channel blockers. All the above factors affect the rate of tooth movement
• Previous orthodontic treatment.
• Missing teeth.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Amount of anchorage loss of the maxillary first molars	6 months from the start of the canine retraction	After full canine retraction, the amount of anchorage loss (mesial movement) of the maxillary first molars of will be assessed on the digital models

Secondary Outcome Measures

Name	Time	Method
Tipping of the maxillary first molar.	6 months from the start of the canine retraction	the degree of tipping of the maxillary first molars will be assessed on the lateral cephalometric radiograph
Maxillary incisors inclination	6 months from the start of the canine retraction	The change in the maxillary incisors inclination will be assessed on the lateral cephalometric radiograph

Trial Locations

Locations (1)

Faculty of Dentistry, Cairo University; 🇪🇬 Cairo, Egypt