Intra-oral Evaluation of Force Decay of Pigmented and Transparent Elastomeric Power Chains:

December 23, 2025 updated by: Maha Saleh Mahdi Al-Muntaser, Sana'a University

Intra-oral Evaluation of Force Decay of Pigmented and Transparent Elastomeric Power Chains: A Randomized Clinical Trail.

This study aimed to evaluate the amount of force decay in pigmented and transparent elastomeric power chains. The principal investigator measured the amount of force decay at 7 intervals using a calibrated Dentaurum force gauge. This study also assessed the associated variables that accelerate the force loss, such as brushing frequency, beverage consumption,mastication, Khat chewing, oral , and tooth movement, . The study outcomes provide evidence-based guidance for selecting elastomeric power chains in routine orthodontic practice.

Study Overview

Detailed Description

The study was a split-mouth randomized clinical trial. Four colors (pink, blue, black, and grey) and transparent elastomeric power chains from 3 different companies (American Orthodontic, SIA, and Matt) were evaluated. A total of 96 participants were recruited, and 192 elastomeric power chains were stretched between the canine bracket hook and the molar band hook throughout the study period. The delivered force of elastomeric power chains was assessed and compared among each other using a calibrated Dentarum force gauge over 6-week intervals (baseline, 24 hours, first week, second week, third week, fourth week, fifth week, and sixth week). To further investigate factors influencing force decay (FD), data on tooth movement, mastication side, beverage consumption, brushing frequency, oral hygiene status, and khat chewing were collected using a structured questionnaire to assess their potential impact.

Study Type

Interventional

Enrollment (Actual)

96

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Sanaa, Yemen
        • Sana'a University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Patients aged between 12-30 years.
  2. Patients who are undergoing fixed orthodontic treatment.
  3. Orthodontic patients who underwent bilateral extraction protocol in maxillary arch.
  4. Patients were in working arch wire 19×25 stainless steel.
  5. Patients with moderate anchorage to ensure comparable baseline mechanics.

Exclusion Criteria:

  1. Patients indicated for orthognathic treatment.
  2. Patients who reported any systemic diseases.
  3. Patients with clefts or syndromes.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Matt gray elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: Matt blue elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: Matt transparent elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: Matt black elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: American orthodocntic gray elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: American orthodontic blue elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: American orthodocntic black elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: American orthodocntic pink elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: American orthodocntic transparent elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: SIA black elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: SIA pink Elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: SIA blue Elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: SIA gray Elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: SIA transparent Elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Experimental: Matt pink elastomeric power chains
EPCs were stretched between the canine bracket hook and the first molar band hook throughout the study period. The delivered force of EPCs was measured using a Dentarum force gauge over 6-week intervals (baseline, after the 1st 24 hours, 1st week, 2nd week, 3rd week, 4th week, 5th week, and 6th week
Matt gray elastomeric power chains is Orthodontic auxiliary/ elastomeric power chains.
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system
Orthodontic Auxiliary force generated system

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluate the force decay of pigmented and transparent elastomeric power chains in a group of orthodontic patients
Time Frame: Baseline and weekly for 6 weeks.
Measurement of the amount of force decay (in grams) for each elastomeric power chain sample at baseline and at 7 time intervals over 6 weeks using a digital force gauge.
Baseline and weekly for 6 weeks.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correlation between force decay and associated variables (tooth movement, masticating side, beverage consumption, brushing frequency, oral hygiene, and khat chewing)
Time Frame: At 6 weeks
Correlation analysis between force decay values (in grams) and the associated variables collected through a structured questionnaire.
At 6 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Mohammed Abdullah Al-Labani, Ph degree, Sana'a University,Sana'a,Yemen.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 19, 2023

Primary Completion (Actual)

September 20, 2024

Study Completion (Actual)

September 20, 2024

Study Registration Dates

First Submitted

November 26, 2025

First Submitted That Met QC Criteria

December 9, 2025

First Posted (Estimated)

December 23, 2025

Study Record Updates

Last Update Posted (Actual)

December 31, 2025

Last Update Submitted That Met QC Criteria

December 23, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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