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Trial registered on ANZCTR
Registration number
ACTRN12624001211550p
Ethics application status
Submitted, not yet approved
Date submitted
19/09/2024
Date registered
3/10/2024
Date last updated
3/10/2024
Date data sharing statement initially provided
3/10/2024
Type of registration
Prospectively registered
Titles & IDs
Public title
A comparison of LightForce vs conventional orthodontic brackets in initial lower arch alignment efficiency and discomfort: a randomised clinical trial
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Scientific title
A comparison of LightForce vs conventional preadjusted brackets in initial mandibular alignment efficiency and discomfort: a randomised clinical trial in 11 to 21 year old patients
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Secondary ID [1]
313005
0
None
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Dental Crowding
335198
0
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Condition category
Condition code
Oral and Gastrointestinal
331688
331688
0
0
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
The use of LightForce (LightForce Orthodontics, 022 Slot) brackets for the entire duration of fixed orthodontic treatment.
Duration of wear is 24 hours a day.
The brackets will be administered by one single orthodontist in a private practive setting in Queensland.
The brackets will be adjusted and checked every 8-12 weeks, and broken ones replaced, however patients may present earler as an emergnecy bracket reattachment appointment.
Assessing adherence to the intervention is not critical as the brackets are firmly attached to the teeth.
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Intervention code [1]
329547
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Treatment: Devices
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Comparator / control treatment
The use of conventional preadjusted (3M Victory and Clarity MBT Prescription, 022 Slot) brackets for the entire duraction of fixed orthodontic treatment.
Duration of wear is 24 hours a day.
The brackets will be administered by one single orthodontist in a private practive setting in Queensland.
The brackets will be adjusted and checked every 8-12 weeks, and broken ones replaced, however patients may present earler as an emergnecy bracket reattachment appointment.
Assessing adherence to the intervention is not critical as the brackets are firmly attached to the teeth.
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Control group
Active
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Outcomes
Primary outcome [1]
339413
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Rate of change in lower anterior teeth crowding
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Assessment method [1]
339413
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Little's Irregularity Index
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Timepoint [1]
339413
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Baseline and 12 weeks after orthodontic treatment has commenced
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Secondary outcome [1]
439827
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Time taken to reach .016x.022 Nickel-Titanium archwire
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Assessment method [1]
439827
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Review of patient's clinical records
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Timepoint [1]
439827
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When fixed orthodontic appliance is inserted and when .016x.022 Nickel-Titanium archwire is installed
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Secondary outcome [2]
439828
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Patient Discomfort
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Assessment method [2]
439828
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Numerical Rating Scale (11 Points)
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Timepoint [2]
439828
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6-8 hours, 24 hours and 5 days after orthodontic treatment has commenced
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Secondary outcome [3]
440115
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Total time for fixed orthodontic treatment
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Assessment method [3]
440115
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Review of patient's clinical records
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Timepoint [3]
440115
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When fixed orthodontic appliance is inserted and when fixed orthodontic appliance is removed
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Secondary outcome [4]
440116
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Change in dental malocclusion
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Assessment method [4]
440116
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Peer Assessment Rating (PAR) Score
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Timepoint [4]
440116
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Baseline and when fixed orthodontic appliance is removed
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Secondary outcome [5]
440121
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Total number of broken brackets
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Assessment method [5]
440121
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Review of patient's clinical records
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Timepoint [5]
440121
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When fixed orthodontic appliance is removed
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Eligibility
Key inclusion criteria
Fixed orthodontic treatment
Permanent dentition
Initial Little's Irregularity Index of 5mm or greater in the mandibular arch
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Minimum age
11
Years
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Maximum age
21
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Orthognathic surgery, impacted canines or premolars
Taking medications or have conditions that may affect tooth movement
With cleft palate or other syndromes
With missing lower incisors (either missing or extracted)
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Sealed opaque envelopes
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation using a randomisation table created by computer software
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
14/10/2024
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Actual
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Date of last participant enrolment
Anticipated
13/10/2025
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Actual
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Date of last data collection
Anticipated
12/04/2028
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Actual
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Sample size
Target
60
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD
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Funding & Sponsors
Funding source category [1]
317445
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Charities/Societies/Foundations
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Name [1]
317445
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Australian Society of Orthodontists Foundation for Research and Education
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Address [1]
317445
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Country [1]
317445
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Australia
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Primary sponsor type
University
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Name
The University of Queensland
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Address
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Country
Australia
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Secondary sponsor category [1]
319735
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None
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Name [1]
319735
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Address [1]
319735
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Country [1]
319735
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Ethics approval
Ethics application status
Submitted, not yet approved
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Ethics committee name [1]
316161
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The University of Queensland Human Research Ethics Committee A
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Ethics committee address [1]
316161
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https://www.uq.edu.au/research/research-support/ethics-integrity-and-compliance/human-ethics
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Ethics committee country [1]
316161
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Australia
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Date submitted for ethics approval [1]
316161
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10/09/2024
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Approval date [1]
316161
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Ethics approval number [1]
316161
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Summary
Brief summary
The purpose of this trial is to compare the improvement of lower dental crowding and patient discomfort in the initial stages orthodontic treatment using conventional preadjusted orthodontic brackets (3M Victory and Clarity, MBT Prescription 022 slot) vs custom LightForce brackets (LightForce Orthodontics, Custom Prescription 022 slot). The primary outcome measured will be change in mandibular Littleās Irregularity Index (LII ) which assesses crowding over a set time period of 12 weeks. The null hypothesis is that there is no difference in the rate of change of lower incisor crowding in the first 12 weeks when using LightForce or conventional preadjusted brackets. The secondary outcomes will include time to reach the first rectangular nickel titanium (NiTi) archwire and evaluation of patient discomfort.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr William Aung
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Address
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UQ School of Dentistry - Oral Health Centre, 288 Herston Road Corner Bramston Terrace and Herston Road Herston QLD 4006
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Country
136986
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Australia
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Phone
136986
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+61 0406941078
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Fax
136986
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Email
136986
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[email protected]
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Contact person for public queries
Name
136987
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William Aung
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Address
136987
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UQ School of Dentistry - Oral Health Centre, 288 Herston Road Corner Bramston Terrace and Herston Road Herston QLD 4006
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Country
136987
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Australia
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Phone
136987
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+61 0406941078
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Fax
136987
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Email
136987
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[email protected]
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Contact person for scientific queries
Name
136988
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William Aung
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Address
136988
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UQ School of Dentistry - Oral Health Centre, 288 Herston Road Corner Bramston Terrace and Herston Road Herston QLD 4006
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Country
136988
0
Australia
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Phone
136988
0
+61 0406941078
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Fax
136988
0
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Email
136988
0
[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Most patients will be minors under age 18
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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