Effectiveness of Elastic Chains Versus Elastics in Maxillary Canine Retraction

NCT07141836 | Completed

• 1 other identifier: Asraa-H-Ortho
• Study Type: interventional
• Target: 33
• Locations: 1 country
• Sites: 1

Brief Summary

This clinical study aimed to evaluate the effectiveness of Elastics and Elastic chains in maxillary canine retraction. Participants of this study were patients undergoing maxillary canine retraction after first premolar extraction. The study aimed to determine an effective method for better controlling tooth movement. This study was initiated on 01-2024. Initially, I was not aware of the importance of early registration on ClinicalTrials.gov. Registration was completed after the study began to ensure transparency and adherence to ethical guidelines. All study procedures and protocols have been conducted under the supervision of the academic advisor. All study procedures and protocols have been followed according to institutional and ethical guidelines

Conditions

Elastic Chains; Elastics

Keywords

Elastics; Elastomeric chains; Randomized clinical trial; Split mouth; Digital models; Canine retraction

Outcome Measures

Primary Outcomes (3)

• Rate of maxillary canine retraction by elastics and elastic chains on each side

  The canine retraction rate was measured on superimposed digital casts of pre and post retraction models.

  Difference between pe and post retraction canine position during 15 weeks

• Measurement of the Tipping movement occurred by each method

  Tipping angle on each side was measured on Orthopantomograms (OPG).

  Pre and post retraction during 15 weeks

• Measurements of rotation resulted by elastic and elastic chain

  The rotational angle was measured on each side by the digital models

  Pre and post-retraction during 25 weeks

Study Arms (2)

Elastic chains

EXPERIMENTAL

This side received maxillary canine retraction using elastic chains

Procedure: Elastomeric chain

Elastics

EXPERIMENTAL

This side received maxillary canine retraction with Elastics on the contralateral side of the arch

Procedure: Elastics

Interventions

Elastomeric chain PROCEDURE

Elastic chain used to apply force that is capable of canine retraction. The chains were attached between canine bracket and molar band on the side that selected Randomly.

Also known as: Elastic chains, Power chain

Elastic chains

Elastics PROCEDURE

Elastics were used to bring a continuous force for maxillary canine retraction in orthodontic patients. Elastics were stretched between the canine bracket and the molar band to retract the canine distally

Also known as: Elastic band, Intramaxillary elastic

Elastics

Eligibility Criteria

• Age: 14 Years - 25 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Patients' treatment required 1st premolar extractions in the maxillary arch and space closure involving canine retraction.
• Teeth in the buccal segments were without any gross anatomic root anomalies as determined by panoramic radiographs.
• There is no gross evidence of asymmetric bone loss in the buccal segments of a given arch as determined by panoramic radiographs.
• Crown/root ratios of contralateral canines and premolars are within 3 mm of one another as determined by panoramic radiographs.

You may not qualify if:

• Patients with gross anatomical anomalies in upper maxillary canines
• Patients with growth and development problems.
• Evidence of bone loss.
• Presence of Impacted Canine.
• History of long-term use of NSAIDs and corticosteroids or drugs affect bone metabolism. Patients who reported any medication interfering with bone metabolism or patients with severe skeletal discrepancies indicated for orthognathic treatment.
• Patients with latex materials allergy.

Sponsors & Collaborators

• Sana'a University: lead

Study Sites (1)

Deparyment of Orthodontics - Faculty of Dentistry- Sana'a University

Sanaa, 967, Yemen

Location

Related Publications (1)

• Jagtap SB, Bhosale VI, Patil AS. Comparative evaluation of interrupted and intermittent forces on canine retraction: an in vivo study. Folia Med (Plovdiv). 2021 Oct 31;63(5):686-691. doi: 10.3897/folmed.63.e54247.

  PMID: 35851202 RESULT

Related Links

• Comparative evaluation of interrupted and intermittent forces on canine retraction: an in vivo study

MeSH Terms

Interventions

Elasticity

Intervention Hierarchy (Ancestors)

Mechanical Phenomena; Physical Phenomena

Study Officials

• Asraa H Taha, MSc Student

  Faculty of Dentistry - Sana'a University

  PRINCIPAL INVESTIGATOR

• Reema A Al-Eriani, PhD of Pedodontics

  Faculty of Dentistry- Sana'a University

  STUDY DIRECTOR

• Ghamdan A Al-Harazi, PhD of Orthodontics

  Faculty of Dentistry- Sana'a University

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: Due to the nature of the clinical intervention, neither the patients nor the investigator could be blinded to the treatment. However, researcher blinding was implemented at the data measurement stage through coding of OPG images and dental models by inter examiner, before measurements began. The researcher was blinded to patient identities and the type of retraction method used on each side (elastic chain vs. elastics).
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Resident in orthodontics

Model Details: This study was designed as a split-mouth randomized clinical trial, where each participant received both interventions. One side of the maxillary arch was retracted with elastic chains, while the contralateral side received elastics. This design allows for direct intra-individual comparison between the two force delivery systems.

Study Record Dates

• First Submitted: August 15, 2025
• First Posted: August 26, 2025
• Study Start: January 30, 2024
• Primary Completion: April 11, 2025
• Study Completion: May 1, 2025
• Last Updated: September 2, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF
• Time Frame: Start Date: 01-Jan-2026 End Date: 31-Dec-2030
• Access Criteria: Qualified researchers who submit a valid research proposal will be able to access de-identified individual participant data, including digital models and treatment outcome measurements. Data will be available through a secure online repository upon approval of the research proposal.

Locations

YE (1)