Treatment of Crowding Without Extraction Using Self Ligating Brackets

Assessment of Dentoalveolar Changes Resulting From Orthodontic Treatment of Crowding With Self-ligating Brackets Using CBCT Randomized Controlled Trial

This experimental study will evaluate the effect of active and passive self-ligating brackets in treatment of crowding, compared with the control group of conventional brackets in class I malocclusion without extraction.

The study sample will consist of 66 patients with 3-6mm crowding. The sample will be allocated randomly into two experimental groups, in addition to a control group.

The brackets will be applied using indirect bonding method for all patients. The dentoalveolar changes occurring after leveling and alignment teeth will be assessed by using CBCT radiographs; pre and post- treatment changes for each group will be evaluated individually.

Study Overview

• Status: Completed
• Conditions: Crowding
• Intervention / Treatment: Device: Traditional brackets; Device: Active self-ligating brackets; Device: Passive self-ligating brackets

Detailed Description

Producing of modern and various brackets systems both self- ligating and conventional make the 3 dimensional important in order to evaluate the root positions and to investigate EARR in multi root teeth, so the research will depend on CBCT to carry out these purposes in our study. Beside to compare the duration of alignment among groups.

Fixed appliances will be applied into three groups as 1. Active self ligating brackets (ASLB), 2. Passive self ligating brackets (PSLB), 3. Conventional brackets (CB) until reach to wire 19*25 S.S upper and lower. During leveling, thermal activated wires will be used in all patients.

CBCT images will be done before and after leveling and alignment of teeth to compare dentoalveolar changes between study groups.

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Syrian Arab Republic
  • Damascus, Syrian Arab Republic
    • Damascus University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years to 24 years (ADULT, CHILD)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• patients permanent dentition stage.
• crowding up to 6 mm
• Class I relationship.
• Good oral hygiene.

Exclusion Criteria:

• Poor oral hygiene.
• Previous orthodontic treatment.
• Patients with syndromes, clefts, or craniofacial abnormalities.
• Class II or III skeletal anteroposterior relationship.
• Crowding less than 3mm and more than 6mm.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Traditional brackets; Fixed orthodontic appliances will be applied for aligning and leveling of teeth up to 19*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets	Device: Traditional brackets; Treating of crowding using traditional brackets
EXPERIMENTAL: Active self-ligating brackets; Fixed orthodontic appliances will be applied for aligning and leveling of teeth up to 19*25 stainless steel wires using active self-ligating brackets; American orthodontics active self-ligating Empower® MBT 0.022"	Device: Active self-ligating brackets; Treating of crowding using active self-ligating brackets
EXPERIMENTAL: Passive self-ligating brackets; Fixed orthodontic appliances will be applied for aligning and leveling of teeth up to 19*25 stainless steel wires using passive self-ligating brackets; American orthodontics passive self-ligating Empower® MBT 0.022"	Device: Passive self-ligating brackets; Treating of crowding using passive self-ligating brackets

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Speed of alignment	Speed of alignment will be measured and compared between the groups.	After 9 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Changes of the torque and tipping of teeth	The torque and tipping of teeth will be evaluated before and after treatment and compared between the groups using CBCT images.	Evaluation before and after alignment and leveling teeth. (after 9 months)
Changes of widths and depths of the dental arches	Changes of dental arches dimensions will be measured and compared between groups.	Evaluation before and after alignment and leveling teeth. (after 9 months)
External apical root resorption	External apical root resorption of each tooth on CBCT images (frequencies) after treatment.	After 9 months

Collaborators and Investigators

• Sponsor: Damascus University

Publications and helpful links

General Publications

• Badawi HM, Toogood RW, Carey JP, Heo G, Major PW. Torque expression of self-ligating brackets. Am J Orthod Dentofacial Orthop. 2008 May;133(5):721-8. doi: 10.1016/j.ajodo.2006.01.051.
• Chan EK, Darendeliler MA, Petocz P, Jones AS. A new method for volumetric measurement of orthodontically induced root resorption craters. Eur J Oral Sci. 2004 Apr;112(2):134-9. doi: 10.1111/j.1600-0722.2004.00118.x.
• Chen SS, Greenlee GM, Kim JE, Smith CL, Huang GJ. Systematic review of self-ligating brackets. Am J Orthod Dentofacial Orthop. 2010 Jun;137(6):726.e1-726.e18; discussion 726-7. doi: 10.1016/j.ajodo.2009.11.009.
• Garcia-Figueroa MA, Raboud DW, Lam EW, Heo G, Major PW. Effect of buccolingual root angulation on the mesiodistal angulation shown on panoramic radiographs. Am J Orthod Dentofacial Orthop. 2008 Jul;134(1):93-9. doi: 10.1016/j.ajodo.2006.07.034.
• Lagravere MO, Carey J, Toogood RW, Major PW. Three-dimensional accuracy of measurements made with software on cone-beam computed tomography images. Am J Orthod Dentofacial Orthop. 2008 Jul;134(1):112-6. doi: 10.1016/j.ajodo.2006.08.024.
• Morina E, Eliades T, Pandis N, Jager A, Bourauel C. Torque expression of self-ligating brackets compared with conventional metallic, ceramic, and plastic brackets. Eur J Orthod. 2008 Jun;30(3):233-8. doi: 10.1093/ejo/cjn005.
• Sifakakis I, Pandis N, Makou M, Eliades T, Bourauel C. A comparative assessment of the forces and moments generated at the maxillary incisors between conventional and self-ligating brackets using a reverse curve of Spee NiTi archwire. Aust Orthod J. 2010 Nov;26(2):127-33.

Study record dates

Study Major Dates

• Study Start (ACTUAL): September 1, 2016
• Primary Completion (ACTUAL): November 1, 2017
• Study Completion (ACTUAL): July 19, 2018

Study Registration Dates

• First Submitted: November 29, 2016
• First Submitted That Met QC Criteria: December 14, 2016
• First Posted (ESTIMATE): December 19, 2016

Study Record Updates

• Last Update Posted (ACTUAL): July 30, 2018
• Last Update Submitted That Met QC Criteria: July 27, 2018
• Last Verified: July 1, 2018

More Information

Terms related to this study

• Keywords: RCT; CBCT; Crowding; Self ligating
• Other Study ID Numbers: UDDS-Ortho-03-2016

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: Individual participant data will be only available to the researchers in the department of Orthodontics, Damascus University