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

Cairo University (CU)

Status: Enrolling

Conditions: Orthodontic Appliance Complication

Treatments: Device: archwire stopper mesial to the maxillary first molar group; Device: inter-radicular mini-screw

Study type: Interventional

Funder types: Other

Identifiers

NCT06416904

ORTH3-3-3

Details and patient eligibility

About

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

Full 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.

Enrollment: 26 estimated patients

Sex: Female

Ages: 15 to 25 years old

Volunteers: Accepts Healthy Volunteers

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.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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26 participants in 2 patient groups

arch wire stopper mesial to the maxillary first molar group

Experimental group

Description:

In postpubertal female patients with maxillary dentoalveolar protrusion, canine retraction after the extraction of the maxillary first premolars with archwire stoppers mesial to the maxillary first molars.

Treatment:

Device: archwire stopper mesial to the maxillary first molar group

maxillary first molar indirectly anchored to the inter-radicular mini-screw group

Active Comparator group

Description:

In postpubertal female patients with maxillary dentoalveolar protrusion, canine retraction after the extraction of the maxillary first premolars, with the maxillary first molars indirectly anchored to the inter-radicular mini-screw.

Treatment:

Device: inter-radicular mini-screw