Efficiency of Canine Retraction Using Different Reactivation Intervals

Status Recruiting

Clinical Trial Summary

Canine retraction after 1st premolar extracion into the extraction space is a routine treatment in orthodontics. Orthodontic patients requiring first premolar extraction, canine retraction and maximum anchorage were recruited for this randomized controlled trial. A search of the literature did not indicate the ideal frequency of elastomeric chain reactivation for optimum canine retraction. The study was approved by the ethical committee. The first premolars were extracted. Elastomeric chains were used to retract the canine distally into the 1st premolar space. The optimum reactivation interval was evaluated regarding the efficiency of treatment in terms of rate of canine retraction, canine tipping and rotation, root resorption and pain at the intervals of 2, 4, 6 and 8 weeks. Three dimensional imaging, as well as digital scanning were the methods for data collection.

Clinical Trial Description

The canines, 2nd premolars, 1st molars and 2nd molars were bonded and banded. Leveling and alignment was achieved. After the first premolar extraction, temporary anchorage devices were inserted interradicular between 2nd premolar and 1st molar. Canine retraction was performed on a 0.016" X 0.022" stainless steel arch wire. A power arm was extended to apply the force closer to the center of resistance and achieve bodily movement. Elastomeric chains were calibrated to deliver a force of 150g and extended from the power arm to the mini screws directly. Recruited patients were randomly allocated to four groups according to the duration between the elastomeric chain reactivation. Canine reactivation intervals were 2, 4, 6, or 8 weeks. Cone beam computed tomography was performed before canine retraction and after 6 months of retraction. Digital dental casts were taken before canine retraction and monthly for 6 months. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04905004
Study type	Interventional
Source	Future University in Egypt
Contact	Reem ElShazly, MSc
Phone	+201114666516
Email	reemhazem24@gmail.com
Status	Recruiting
Phase	N/A
Start date	April 1, 2017
Completion date	June 1, 2022

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT04619446` - Dentoskeletal Changes Produced by Growth Modification Appliances in Treatment of Skeletal Class II Malocclusion
Active, not recruiting	`NCT05171738` - Distalization Via Skeletally-anchored Distaljet Appliance With Two Approaches of Micro-osteoperforations	N/A
Completed	`NCT00248014` - Response of Individuals With Class II Malocclusion	Phase 2
Completed	`NCT01853137` - Fixed Lingual Mandibular Growth Modificator	N/A
Completed	`NCT01853995` - Mechanism of Class II Correction With Fixed Lingual Mandibular Growth Modificator (FLMGM)	Phase 2
Completed	`NCT04814173` - The Efficacy of Tow Mechanics for Total-maxillary-arch-distalization	N/A
Recruiting	`NCT03839303` - Comparison Between Mini Implant Supported Appliance and Headgear in Treatment of Maxillary Excess in Growing Patients	N/A
Completed	`NCT04847492` - Evaluation of Upper Anterior Teeth Retraction Rate Assisted by Two Corticotomy Techniques	N/A
Recruiting	`NCT04810286` - Prefabricated Versus 3D-Printing Myofunctional Appliances	N/A
Not yet recruiting	`NCT03764189` - Evaluation of Micro-osteoperforation on Rate of Maxillary En-masse Retraction	N/A
Terminated	`NCT00957489` - A Prospective Randomized Controlled Trial to Evaluate the Effectiveness of the Two Different Appliances in the Treatment of Class II Division 1 Malocclusion	N/A
Recruiting	`NCT04743258` - Bilateral Premolar Extraction vs Distalization: A Randomised Clinical Trial	N/A
Active, not recruiting	`NCT04191070` - Distalization Using Infrazygomatic Crest Miniscrews and Zygomatic Miniplates: A Randomized Clinical Trial	N/A
Completed	`NCT05335824` - The Effect of Autologous Platelet Concentrations on Orthodontic Treatment Time	N/A
Completed	`NCT06133361` - The Effect of Platelet-rich Plasma on the Rate and Type of Orthodontic Tooth Movement	N/A
Completed	`NCT05542745` - Measuring Rate of Anteriors Retraction With Two Different Techniques	N/A
Completed	`NCT05928143` - Patient Outcomes Associated With Two Accelerated Method of Retraction of Upper Front Teeth	N/A
Completed	`NCT05040945` - Evaluation of the Levels of Pain and Discomfort Associated With Two Techniques of Corticotomy	N/A
Completed	`NCT04316403` - Laser-assisted Flapless Corticotomy in Accelerating Canine Retraction	N/A
Not yet recruiting	`NCT03635463` - Effect of Modified Twin Block in Skeletal Class II Growing Females With Mandibular Deficiency	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.