Efficiency of Canine Retraction Using Different Reactivation Intervals
Comparing Canine Retraction Using Two-week, Four-week, Six-week and Eight-week Reactivation Intervals
1 other identifier
interventional
56
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Apr 2017
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2017
CompletedFirst Submitted
Initial submission to the registry
May 23, 2021
CompletedFirst Posted
Study publicly available on registry
May 27, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2022
CompletedMay 27, 2021
May 1, 2021
5.2 years
May 23, 2021
May 23, 2021
Conditions
Outcome Measures
Primary Outcomes (6)
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
Baseline to 1 month
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
1month to 2 months
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
2 months to 3 months
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
3 months to 4 months
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
4 months to 5 months
Rate of canine retraction
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
5 months to 6 months.
Secondary Outcomes (15)
Amount of canine retraction
Baseline to 6 months
Canine tipping
Baseline to 6 months
Canine rotation
Baseline to 6 months
Canine root resorption
Baseline to 6 months
First molar anchorage loss
Baseline to 6 months
- +10 more secondary outcomes
Study Arms (4)
2-week reactivation interval
EXPERIMENTALReplacement of elastomeric chain every 2 weeks and reestablishing a 150 g force
4-week reactivation interval
ACTIVE COMPARATORReplacement of elastomeric chain every 4 weeks and reestablishing a 150 g force
6-week reactivation interval
EXPERIMENTALReplacement of elastomeric chain every 6 weeks and reestablishing a 150 g force
8-week reactivation interval
EXPERIMENTALReplacement of elastomeric chain every 8 weeks and reestablishing a 150 g force
Interventions
Canines will be retracted using short elastomeric chains. Force applied to canines will be 150g.
Eligibility Criteria
You may qualify if:
- Patients requiring 1st premolar extraction (e.g bimaxillary dentoalveolar protrusion)
- Erupted full set of permanent teeth (excluding 3rd molars)
You may not qualify if:
- Systemic diseases that would interfere with bone metabolism
- Craniofacial syndromes
- congenitally missing or extracted permanent teeth.
- periodontally compromised patients
- smokers
- pregnant women
- previous orthodontic treatment
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Future University in Egypt
Cairo, 11865, Egypt
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Yehya Mostafa, PhD
Future University in Egypt
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Head of the Orthodontics Department
Study Record Dates
First Submitted
May 23, 2021
First Posted
May 27, 2021
Study Start
April 1, 2017
Primary Completion
June 1, 2022
Study Completion
June 1, 2022
Last Updated
May 27, 2021
Record last verified: 2021-05
Data Sharing
- IPD Sharing
- Will not share