Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
60 participants
INTERVENTIONAL
2022-11-18
2030-01-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Early treatment
Treatment started in the early mixed dentition phase
Quad-helix
Fixed orthodontic appliance
Late treatment
Treatment started in the late mixed dentition phase
Quad-helix
Fixed orthodontic appliance
Interventions
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Quad-helix
Fixed orthodontic appliance
Eligibility Criteria
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Inclusion Criteria
* Crowding on both dental arches
* Skeletal discrepancy not suspected
Exclusion Criteria
* Other malocclusions
* Angle Class III relationship of the molars
* Malocclusion related to a syndrome
* Non-compliance to orthodontic treatment
6 Years
14 Years
ALL
No
Sponsors
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City of Vantaa
OTHER_GOV
University of Helsinki
OTHER
Responsible Party
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Heidi Arponen
Principal investigator
Principal Investigators
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Heidi Arponen, DDS
Role: PRINCIPAL_INVESTIGATOR
University of Helsinki
Locations
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University of Helsinki
Helsinki, Helsinki, Finland
Countries
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Other Identifiers
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HUS/3102/2020
Identifier Type: -
Identifier Source: org_study_id
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