The Use of Corticotomy for Upper Incisors Retraction

NCT03149016 | Completed DMC

• 1 other identifier: UDDS-Ortho-02-2017
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Class II Division 1 Malocclusion

Outcome Measures

Primary Outcomes (2)

• Rate of retraction

  The distance that the incisors moved during retraction divided by the time required to retract the four upper incisors to their ideal positions.

  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

  The time required from the beginning of incisors' retraction till the the completion of this procedure.

  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 Outcomes (3)

• Change in the axial inclination of upper incisors

  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

  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

  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

Study Arms (2)

Corticotomy-assisted Retraction

EXPERIMENTAL

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

Procedure: Corticotomy-assisted Retraction

Conventional Retraction

NO INTERVENTION

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

Interventions

Corticotomy-assisted Retraction PROCEDURE

Using a tunneling technique, the researcher will perform the intervention in the alveolar bone surrounding the upper incisors before retraction.

Corticotomy-assisted Retraction

Eligibility Criteria

• Age: 15 Years - 27 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Damascus University: lead

Study Sites (1)

Department of Orthodontics, University of Damascus Dental School

Damascus, DM20AM18, Syria

Location

Related Publications (7)

• Aboul-Ela SM, El-Beialy AR, El-Sayed KM, Selim EM, El-Mangoury NH, Mostafa YA. Miniscrew implant-supported maxillary canine retraction with and without corticotomy-facilitated orthodontics. Am J Orthod Dentofacial Orthop. 2011 Feb;139(2):252-9. doi: 10.1016/j.ajodo.2009.04.028.

  PMID: 21300255 BACKGROUND

• Al-Naoum F, Hajeer MY, Al-Jundi A. Does alveolar corticotomy accelerate orthodontic tooth movement when retracting upper canines? A split-mouth design randomized controlled trial. J Oral Maxillofac Surg. 2014 Oct;72(10):1880-9. doi: 10.1016/j.joms.2014.05.003. Epub 2014 May 14.

  PMID: 25128922 BACKGROUND

• Choo H, Heo HA, Yoon HJ, Chung KR, Kim SH. Treatment outcome analysis of speedy surgical orthodontics for adults with maxillary protrusion. Am J Orthod Dentofacial Orthop. 2011 Dec;140(6):e251-62. doi: 10.1016/j.ajodo.2011.06.029.

  PMID: 22133959 BACKGROUND

• Chung KR, Kim SH, Lee BS. Speedy surgical-orthodontic treatment with temporary anchorage devices as an alternative to orthognathic surgery. Am J Orthod Dentofacial Orthop. 2009 Jun;135(6):787-98. doi: 10.1016/j.ajodo.2007.03.036.

  PMID: 19524840 BACKGROUND

• Bhattacharya P, Bhattacharya H, Anjum A, Bhandari R, Agarwal DK, Gupta A, Ansar J. Assessment of Corticotomy Facilitated Tooth Movement and Changes in Alveolar Bone Thickness - A CT Scan Study. J Clin Diagn Res. 2014 Oct;8(10):ZC26-30. doi: 10.7860/JCDR/2014/9448.4954. Epub 2014 Oct 20.

  PMID: 25478442 BACKGROUND

• Dincer M, Gulsen A, Turk T. The retraction of upper incisors with the PG retraction system. Eur J Orthod. 2000 Feb;22(1):33-41. doi: 10.1093/ejo/22.1.33.

  PMID: 10721243 BACKGROUND

• KOLE H. Surgical operations on the alveolar ridge to correct occlusal abnormalities. Oral Surg Oral Med Oral Pathol. 1959 May;12(5):515-29 concl. doi: 10.1016/0030-4220(59)90153-7. No abstract available.

  PMID: 13644913 BACKGROUND

MeSH Terms

Conditions

Malocclusion, Angle Class II

Condition Hierarchy (Ancestors)

Malocclusion; Tooth Diseases; Stomatognathic Diseases

Study Officials

• Ghaith Al Imam, DDS

  MSc student in Orthodontics, University of Damascus Dental School, Damascus, Syria

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: May 9, 2017
• First Posted: May 11, 2017
• Study Start: August 20, 2016
• Primary Completion: January 20, 2018
• Study Completion: April 15, 2018
• Last Updated: July 30, 2018

Record last verified: 2018-07

Data Sharing

• IPD Sharing: Will not share

Locations

SY (1)