The Use of Corticotomy for Upper Incisors Retraction

Damascus University

Status: Completed

Conditions: Class II Division 1 Malocclusion

Treatments: Procedure: Corticotomy-assisted Retraction

Study type: Interventional

Funder types: Other

Identifiers

NCT03149016

UDDS-Ortho-02-2017

Details and patient eligibility

About

We aim to assess the treatment outcomes following upper incisors retraction accelerated by corticotomy procedure. So, we intend to randomize orthodontic patients with class II division I malocclusion into two groups: experimental group and control group. Both groups will start orthodontic treatment. Once a 0.019*0.025-inch stainless steel wire is fully engaged to the brackets, 1st premolars will be extracted. Canines will be retracted in the conventional manner. Then, the actual evaluation period starts when the upper incisors are retracted using two different methods.

Full description

In the last three decades, the number of adult patients seeking short orthodontic treatment time has apparently increased as the conventional orthodontic treatment usually lasts for 20-24 months. Furthermore, orthodontic treatment is often associated with root resorption, bone degradation and caries development. Patients nowadays desire to end the orthodontic treatment as soon as possible due to phsycosocial reasons and to get the goals of the treatment without affecting their social life .

So many tooth movement accelerating methods have been proposed. However, the surgical approached are considered the most effective and promising methods in accelerating tooth movement. The current research aims to evaluate the efficacy of the a new proposed surgical method compared to the conventional method in upper incisors' retraction.

Enrollment: 30 patients

Sex: All

Ages: 15 to 27 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adult patients 15 to 27 years , with permanent dentition , without hypodontia .
• Overjet less than 10 mm
• Normal or increased growth pattern (Diagnosed by Y-axis angle)
• Mild to moderate crowding (Less than 3 mm)
• After canines retraction , at least 3 mm space should be available distal the lateral incisors
• Midline deviation shouldn't be more than 3 mm

Exclusion criteria

• Medically contraindicated patients to oral surgery .
• Existence of general health issue that affect orthodontic teeth movement
• Previous orthodontic treatment
• Mixed dentition
• Hypodontia (Except third molars)
• Bad oral hygiene

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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30 participants in 2 patient groups

Corticotomy-assisted Retraction

Experimental group

Description:

Corticotomy-assisted retraction will be performed in order to help in accelerating upper incisors' retraction

Treatment:

Procedure: Corticotomy-assisted Retraction

Conventional Retraction

No Intervention group

Description:

Conventional retraction will be used in this group of patients by sliding mechanisms