Early Orthodontic Treatment of Dental Crowding

Not Applicable

Recruiting

• Conditions: Dental Crowding
• Interventions: Device: Quad-helix

• Registration Number: NCT04756843
• Lead Sponsor: University of Helsinki

Brief Summary

Aim of the study is to compare treatment duration and effects of orthodontic treatment of dental crowding between treatments started at different stages of mixed dentition phase. The randomized controlled trial study will be conducted in a public health care center.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-02-08
• Study First Submitted QC: 2021-02-11
• Study First Posted: 2021-02-16
• Study Start: 2022-11-18
• Status Verified: 2024-05
• Last Update Submitted: 2024-05-07
• Last Update Posted: 2024-05-08
• Primary Completion: 2029-12
• Study Completion: 2030-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Dental developmental stage of mixed dentition
• Crowding on both dental arches
• Skeletal discrepancy not suspected

Exclusion Criteria

• National criteria for publicly funded treatment not met by the severity of the malocclusion
• Other malocclusions
• Angle Class III relationship of the molars
• Malocclusion related to a syndrome
• Non-compliance to orthodontic treatment

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Early treatment	Quad-helix	Treatment started in the early mixed dentition phase
Late treatment	Quad-helix	Treatment started in the late mixed dentition phase

Primary Outcome Measures

Name	Time	Method
Treatment time	Up to 36 months	Duration of treatment

Secondary Outcome Measures

Name	Time	Method
Alignment of dental arches	up to 48 months	Occlusal end result of the treatment
Treatment burden	Up to 48 months	Number of orthodontic appliances used

Trial Locations

Locations (1)

University of Helsinki; 🇫🇮 Helsinki, Finland