The Use of Corticotomy for Upper Incisors Retraction

• Register: ClinicalTrials.gov
• Last refreshed on: 12 December 2020
• Main ID: NCT03149016
• Date of registration: 09/05/2017
• Prospective Registration: No
• Primary sponsor: Damascus University
• Public title: The Use of Corticotomy for Upper Incisors Retraction
• Scientific title: Evaluation of Treatment Outcomes of Corticotomy-accelerated Upper Incisors' Retraction: A Randomized Controlled Trial
• Date of first enrolment: August 20, 2016
• Target sample size: 30
• Recruitment status: Completed
• URL: https://clinicaltrials.gov/show/NCT03149016
• Study type: Interventional
• Study design: Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Treatment. Masking: Single (Outcomes Assessor).
• Phase: N/A

Countries of recruitment

Syrian Arab Republic

Contacts

• Name: Ghaith Al Imam, DDS
• Affiliation: MSc student in Orthodontics, University of Damascus Dental School, Damascus, Syria

Key inclusion & exclusion criteria

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



Age minimum: 15 Years
Age maximum: 27 Years
Gender: All

Health Condition(s) or Problem(s) studied

Class II Division 1 Malocclusion

Intervention(s)

Procedure: Corticotomy-assisted Retraction

Primary Outcome(s)

Rate of retraction [Time Frame: This will be measured at the completion of the retraction procedure, and is expected to take 2 months in the experimental group and four months in the control group.]

Time required for retraction [Time Frame: This will be measured at the completion of the retraction procedure, and is expected to be within 2 months in the accelerated group and 4 months in the control group.]

Secondary Outcome(s)

Change in the axial inclination of upper incisors [Time Frame: A radiograph will be taken at T1: one day before upper incisors' retraction and T2: one day after the completion of upper incisors' retraction. Completion of upper incisors' retraction is expected to be within 2 months in the accelerated group and 4 mo]

Anchorage loss [Time Frame: This will be measured one day following the completion of retraction of the upper four incisors using plaster study models and is expected to be within 2 months in the accelerated group and 4 months in the control group]

Root resorption [Time Frame: An panoramic image will be taken at T1: one day before the commencement of incisor retraction and T2: one day following the completion of retraction and is expected to be within 2 months in the accelerated group and 4 months in the control group]

Secondary ID(s)

UDDS-Ortho-02-2017

Source(s) of Monetary Support

Please refer to primary and secondary sponsors