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

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02996292

Enrollment

Registered

2016-12-19

Start date

2016-09-30

Completion date

2018-07-19

Last updated

2018-07-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crowding

Keywords

Crowding, Self ligating, CBCT, RCT

Brief summary

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.

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.

Interventions

DEVICETraditional brackets

Treating of crowding using traditional brackets

DEVICEActive self-ligating brackets

Treating of crowding using active self-ligating brackets

DEVICEPassive self-ligating brackets

Treating of crowding using passive self-ligating brackets

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

14 Years to 24 Years

Healthy volunteers

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.

Design outcomes

Primary

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

Secondary

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

Countries

Syria

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026